WO2013057767A1

WO2013057767A1 - Motor drive device and roller conveyer device utilizing same

Info

Publication number: WO2013057767A1
Application number: PCT/JP2011/005890
Authority: WO
Inventors: 守幸豊田
Original assignee: 株式会社協和製作所
Priority date: 2011-10-20
Filing date: 2011-10-20
Publication date: 2013-04-25

Abstract

In the motor drive device and the roller conveyer device utilizing the motor drive device pertaining to the present invention, multiple control parameters are stored in, for example, an EEPROM (12) with regard to control parameters for at least some of items pertaining to one or multiple input/output terminals and operation input terminals, and the control parameters for said some items are enabled to be alternatively selected from among the multiple control parameters, whereby the motor (14) is driven by using said selected control parameter. Thus, the motor drive device and the roller conveyer device utilizing the motor drive device pertaining to the present invention enables a function selection range to be expanded, and convenience and versatility to be improved, without increasing the number of the input/output terminals and the operation input terminals.

Description

Motor drive device and roller conveyor device using the same

The present invention relates to a motor driving device for driving a motor and a roller conveyor device using the motor driving device, for example, a DC brushless motor driving device suitably used for the roller conveyor device and the roller conveyor device.

A large number of roller conveyor devices are used at production sites and the like. At present, the motor drive device has many additional functions in addition to the function of simply rotating the corresponding roller conveyor device at a constant speed. Yes. There are various additional functions such as soft start / stop, sensor interlocking (train mode for continuously transporting the object to be transported, gap train mode for adjusting the interval in the train mode, etc.), and gear position switching. The setting is also complicated. In addition, once the characteristics of the motor corresponding to (to be driven by) the motor driving device are set, it is usually unnecessary to change the setting. However, in rare cases, when the motor is changed or the line is reconfigured and the motor corresponding to the motor drive device is changed, it is necessary to change the setting, and there are many setting items. It is complicated.

A motor driving device of the roller conveyor device is disclosed in Patent Document 1, for example. Here, for example, as shown in FIG. 4 of Patent Document 1, when there is a host device that performs overall control of a large number of motors in a large-scale production line or the like, from the host device to the drive device of each motor. In some cases, an appropriate control parameter value corresponding to the production status or the like is set as appropriate, and no input / output terminal or operation input terminal is provided except for the communication interface with the host device.

However, as shown in FIG. 5 and FIG. 2 of Patent Document 1, for example, in the case of a motor drive device that is mainly used alone, that is, can be driven by a so-called stand-alone without such a host device, A dip switch, a rotary switch, or the like serving as the operation input terminal is mounted, and a connector or the like serving as the input / output terminal is mounted. The operator operates the input / output terminal or the operation input terminal one by one. There was a need to change the parameters.

Therefore, in the above-described conventional technology, it takes time to change the parameters. Further, in order to be able to change many control parameters, it is necessary to increase the number of input / output terminals and operation input terminals.

Japanese Patent No. 3632060

The present invention has been made in view of the above circumstances, and its object is to provide a motor drive device capable of expanding the range of function selection without increasing the number of input / output terminals and operation input terminals. And it is providing the roller conveyor apparatus using the same.

In the motor drive device according to the present invention and the roller conveyor device using the motor drive device, a plurality of control parameters are set in advance for the control parameters of items relating to at least a part of one or more input / output terminals and operation input terminals. The control parameters of the items related to at least a part of the stored parameters can be selected alternatively from the plurality of control parameters, and the motor is driven using the selected control parameters. Therefore, the motor drive device according to the present invention and the roller conveyor device using the motor drive device expand the range of function selection and improve convenience and versatility without increasing the number of input / output terminals and operation input terminals. can do.

The above and other objects, features and advantages of the present invention will become apparent from the following detailed description and the accompanying drawings.

It is a schematic front view in the circuit board of the motor drive device shown by removing the housing of the motor drive device according to the embodiment. It is a figure which shows typically the example of wiring outside from the connector for a driving | operation in the motor drive device shown in FIG. FIG. 2 is an electric circuit diagram specifically showing an interface around a control microcomputer in the motor drive device shown in FIG. 1. FIG. 2 is a block diagram showing an electrical configuration of the motor drive device shown in FIG. 1. It is a figure which shows an example of the checker screen which displayed the content of CPU of the said control microcomputer. It is a figure which shows an example of the checker screen of a motor parameter.

Hereinafter, an embodiment according to the present invention will be described with reference to the drawings. In addition, the structure which attached | subjected the same code | symbol in each figure shows that it is the same structure, The description is abbreviate | omitted suitably. Further, in this specification, when referring generically, it is indicated by a reference symbol without a suffix, and when referring to an individual configuration, it is indicated by a reference symbol with a suffix.

FIG. 1 is a schematic front view of a circuit board of a motor driving device shown with a casing of the motor driving device according to the embodiment removed. This motor drive device 1 is housed in a predetermined recess in an I-type or H-type frame to which a number of conveyor rollers are attached in a roller conveyor device. Therefore, the motor driving device 1 has a long shape, and connectors CN1 to CN6 are mounted on both short sides of the board 2. On the board 2, a control microcomputer 10, dip switches DIP1, DIP2, rotary A large number of electronic components necessary to function as the motor driving device 1 such as the switches RS1, RS2, RS3, the connector CN7, and predetermined elements are mounted.

The connector CN1 is for driving a DC brushless motor built in the conveyor roller, and has a hall IC signal as a rotation position signal and a terminal (pin) for output of a three-phase drive current and control power. A terminal (pin) for receiving from the IC is provided. The function assignment for each pin in the connector CN1 is as shown in Table 1. That is, each function shown in Table 1 is assigned in advance to each pin in connector CN1.

The conveyor roller usually includes a driving roller driven by a motor and a driven rotor that is rotated by the driving roller or by the passage of a conveyed product that is moved by the driving roller. . Further, the motor built-in type driving roller has a known structure, and is disclosed in, for example, Japanese Patent Application Laid-Open No. 2006-027849 and Japanese Patent Application Laid-Open No. 2006-027860.

The connector CN2 is for power input of the motor drive device 1, and the function assignment to each pin is as shown in Table 2.

Connector CN3 is an input / output terminal for operation control of the conveyor roller, and function assignment is as shown in Table 3. The connector CN3 and the next connector CN4 will be described in detail later.

Connector CN4 is for a sensor such as a photosensor that detects the passage of a conveyed product conveyed on the conveyor roller, and the function assignment for each pin is as shown in Table 4.

Connectors CN5 and CN6 are for sensor signal transmission / reception with the adjacent motor drive device 1, and the function assignment to each pin is as shown in Table 5. By providing the connectors CN5 and CN6 on the board 2, the above-described train mode or the like can be interlocked with each other, and each of the connectors CN5 and CN6 is provided on each short side of the board 2 so that the adjacent motor driving device 1 can be connected. It becomes easy to route the cable.

Connector CN7 is a connector for communication with an external information processing apparatus such as a personal computer. The connector CN7 is normally covered with the casing, and on the other hand, items related to at least a part of the input / output end and the operation input end after shipping inspection of the motor driving device 1 described later or after installation. When the control parameter needs to be rewritten, the housing is removed, and the connector CN7 is connected to the external information processing apparatus. Therefore, as described later, after the manufacturer sets and ships for the customer, the housing is removed and the connector CN7 has few opportunities to be used. Unlike the motor drive device that is always connected to the motor drive device 1, the motor drive device 1 operates in a so-called stand-alone manner.

FIG. 2 is a diagram schematically showing an example of wiring outside the connector CN3 for operation in the motor drive device shown in FIG. As shown in Table 3, pin 1 (terminal with pin number 1) of this connector CN3 is a common input (GND). When the switch S1 is connected between the pin 1 and the pin 2, the switch S1 controls the operation / stop in the basic setting (default setting) as will be described later, and the control microcomputer 10 does so. To recognize. Similarly, when a switch S2 is connected between the pin 1 and the pin 3, the switch S2 controls forward / reverse rotation in the basic setting.

On the other hand, the pin 4 is for error signal output. In the case of NPN output for current sink, as shown in FIG. 2A, the light emitting diode D1 is connected to the pin 1 of the connector CN2 to which DC24V is supplied and the pin. 4, the light emitting diode D <b> 1 is turned on by sucking current. When the pin 4 is a PNP output for current discharge, as shown in FIG. 2B, the light emitting diode D1 is connected between the pin 2 and the pin 4 of the connector CN2 grounded (GND, 0V). And the light emitting diode D1 is turned on by supplying a current. The mode of error is displayed by the mode of blinking of the light emitting diode D1. Switching between the NPN output and the PNP output is performed by automatic recognition of the control microcomputer 10.

Pin 5 of connector CN3 is a terminal for outputting a pulse as a speed signal from control microcomputer 10. Pin 6 of connector CN3 is a terminal for outputting a sensor signal input from connector CN4. The pin 7 of the connector CN3 becomes effective when the switch SW2 of the DIP switch DIP1 is OFF (low speed) and the scale of the rotary switch RS1 is at the minimum 0, and the control microcomputer 10 recognizes the pin 7 of the connector CN3. The motor of the conveyor roller is driven at a speed corresponding to the input voltage (0 to 10 V) from the external power source E1.

FIG. 3 is an electric circuit diagram specifically showing an interface around the control microcomputer 10 in the motor driving apparatus shown in FIG. In FIG. 3, portions relating to the motor input / output connector CN1 and the external information processing apparatus connection connector CN7 are omitted. The DC24V power input from the connector CN2 is input via a noise removing capacitor C1, a smoothing capacitor C2, a fuse FS and a capacitor C3, and is stabilized at 5V by the DC-DC converter 21. , And supplied to each circuit on the substrate 2.

As shown in Table 5, the connectors CN5 and CN6 for transmitting and receiving sensor signals with the adjacent motor drive device 1 have a common pin (GND), and each line L1 corresponding to each of the signal pins 1 to 3 is shown in Table 5. Each is connected to a pull-up resistor R1, a noise removing capacitor C11, and an overvoltage absorbing Zener diode ZD1 and an input / output resistor R2. Since an off-the-shelf chip component is used, FIG. 3 also shows a non-use element (for example, one resistance element among chip components having four resistors R1).

As described above, the connector CN4 is for a sensor such as a photosensor. Between the

pins

1 and 3 for power output, DC24V from the connector CN2 is supplied, and the signal input from the pin 2 is connected to the photocoupler PC1. Via the control microcomputer 10.

In the connector CN3 for operation, as shown in Table 3, pin 1 is a common input (GND), and pins 2 and 3 for switch S1 and S2 input are connected to the control microcomputer 10 via photocouplers PC2 and PC3. It is connected. On the other hand, high / open outputs are given to the

signal output pins

4 and 6 from the control microcomputer 10 via the two-stage buffer circuits B1 and B2. Further, the pin 5 outputs a motor speed signal (pulse), and a pulse from the control microcomputer 10 is given low / open via the buffer circuit B3. The pin 7 receives an input voltage from the external power source E1, and the input voltage is given from the noise removing capacitor C12 to the capacitor C13 via the input resistor R11 and is taken into the control microcomputer 10. In parallel with the capacitor C13, a discharge resistor R13 and an overvoltage-preventing Zener diode ZD2 are connected.

Returning to FIG. 1, the DIP switch DIP1 includes 10-pole switches SW1 to SW10, and the DIP switch DIP2 includes 6-pole switches SW11 to SW16. Table 6 shows the function assignment of basic settings of the DIP switch DIP1.

The switch SW1 sets the rotation direction of the motor, and when viewed from the cable input side to the motor, the clockwise direction is forward rotation and the counterclockwise direction is reverse direction. The switch SW2 sets the rotational speed of the motor in two stages, high speed and low speed. Whether the switch SW3 detects the dark side where the photo sensor is shielded by the conveyed object or the light side not covered by the conveyed object with respect to the output of the photo sensor connected to the connector CN4. Is set. The switch SW4 sets whether the return condition after stopping due to an error is automatic or manual. The switch SW5 indicates an operation in response to the sensor detection result, and sets whether to drive or stop the motor by sensor detection.

The switches SW6 to SW8 set the type of motor, and 2 ³ = 8 types of motors can be selected. Specific setting modes are as shown in Table 7.

The switches SW9 and SW10 are used to set the brake system. As shown in Table 8, the regenerative brake that brakes by consuming the generated power, and the regenerative current becomes a predetermined current value, for example, 0.5A. There are three types of servo lock that controls the motor and free with no brake.

On the other hand, Table 9 shows the function assignment of basic settings of the DIP switch DIP2.

The switch SW11 sets a ZPA (zero pressure accumulation) mode, and can be set to a single mode in which a transported object is handled alone and a train mode in which it is handled as being continuous at a predetermined interval. The switch SW12 sets whether or not to use the ZPA function. In the standard mode in which the ZPA function is not used, the roller conveyor device (DC brushless motor of the conveyor roller) is continuously operated.

The switch SW13 switches whether to perform the same operation using a common sensor. When this switch SW13 is set to ON, one motor drive device transfers the signal from the sensor input from the connector CN4 from the connector CN5 or CN6 to the other adjacent motor drive device, An operation synchronized with the other adjacent motor drive device is performed, and when set to OFF, the motor drive device performs a normal operation alone.

The switch SW14 sets the time during which the motor is moved after passing through the sensor, and can be switched between 0.5 seconds and 1 second. The switch SW15 selects whether or not to use the gap train mode, and can be switched between not using the gap train mode or using the gap train in 0.5 seconds. The switch SW16 selects whether or not to idle for a predetermined time when the operation is started after stopping the driving of the motor by an emergency stop or the like.

Next, the rotary switches RS1, RS2, and RS3 will be described. The rotary switches RS1, RS2, and RS3 are for setting the motor rotation speed, the soft start time, and the soft stop time, respectively, in the basic settings. Tables 10 to 12 show the set values of 16 steps for each rotary switch RS1, RS2, and RS3.

As described above, the basic setting of the rotary switch RS1 is used in combination with the switch SW2 of the dip switch DIP1, and can be switched between high speed and low speed in the setting of the switch SW2. When the scale is set to high speed and the switch SW2 is set to low speed and the scale of the DIP switch DIP1 is 0 which is the minimum, the rotation speed of the motor is set to the pin 7 of the connector CN3. It is controlled in proportion to the input voltage. In addition, in Table 10, although the setting value of the rotational speed for four motors of different types (characteristics) is shown, there are eight types of motor characteristics that are preset in the motor driving device 1 in advance. In Table 10, four units are omitted. The default motor characteristics will be described later.

Table 11 and Table 12 set the soft start time and soft stop time. As the scale becomes larger, each of the soft start time and soft stop time is set to a longer time, that is, each of the start and stop is set to be soft. In other words, in the soft start, the motor drive device 1 controls the motor so that the scale increases and the speed is gradually increased from the stop speed to the target speed as the scale increases. Further, in the soft stop, the motor driving device 1 controls the motor so that the scale becomes larger as the scale becomes larger, and it is applied for a long time from the speed at the start of the stop to the stop speed.

FIG. 4 is a block diagram showing an electrical configuration of the motor drive device shown in FIG. FIG. 4 shows the control microcomputer 10 in more detail. In FIG. 4, many auxiliary mounting parts on the substrate 2 are omitted. In FIG. 4, the control microcomputer 10 includes a CPU (Central Processing Unit) 11 and an EEPROM (Electrically Erasable Programmable Read Only Memory) 12, but an input / output circuit, an analog / digital conversion circuit, a ROM It is assumed that auxiliary circuits such as (Read Only Memory), RAM (Random Access Memory), etc. that are built in a normal microcomputer are also incorporated.

The CPU 11 controls the rotation of the motor 14 of the conveyor roller via the inverter 13 in response to the setting state in the EEPROM 12 and sensor input. The CPU 11 corresponds to the selection unit in the claims as an example, and corresponds to the drive unit together with the inverter 13. As shown in Table 1, three-phase signals for driving are output from pins 3 to 5 of connector CN1. On the other hand, the motor 14 is supplied with a power voltage of + 5V from

pins

2 and 1 of the connector CN1, so that the positions of the motor 11 to the pins 6 to 8 of the connector CN1 are detected from the three-phase Hall ICs. The result is entered. In response to this, the CPU 11 performs rotation speed control and stop position control of the motor 14.

Further, as an example, the EEPROM 12 corresponding to the storage unit in the claims includes tables T1 to T9. The table T2 stores an operation mode for the input of the pin 3 of the photocoupler PC3, that is, the connector CN3. When the flag of the table T2 is set to 0, the CPU 11 performs the default setting rotation switching operation as shown in FIG. 2 for the input from the pin 3, and the input of the pin 3 is turned on. Rotate in the forward direction and reverse in the OFF position. On the other hand, when the flag of the table T2 is set to a value other than 0, the CPU 11 performs a preset operation from an external information processing apparatus such as the personal computer. When the flag is set to 1, the input of pin 3 is a two-speed shift operation, and when the flag is set to 2, the input of pin 3 enables or disables the brake. When the flag is set to 3, it is set whether or not the pin 3 input is servo-locked. When the flag is set to 4 and 5, the pin 3 input is pulse-driven. When the function is set and the flag is set to 6, it is set whether or not the input of pin 3 is auto-started. As described above, the flag of the table T2 represents an operation mode with respect to the input of the pin 3 of the connector CN3, and indicates the type of control parameter changed from the basic setting in the pin 3 of the connector CN3 and changed to the pin 3 of the connector CN3. It is an identifier.

Similarly, the table T3 stores the operation mode for the input of the pin 2 of the photocoupler PC1, that is, the connector CN4. When the flag of the table T3 is set to 0, the pin 2 becomes a default sensor input. On the other hand, like the table T2, when the flag of the table T3 is set to 1, the input of the pin 2 is the switching operation of the two gears, and when the flag is set to 2, the pin 2 The input of となり is a switching operation to enable or disable the brake. If the flag is set to 3, whether the input of pin 2 is servo-locked or not is set, and the flag is set to 4 and 5 When the flag is set to 6, the input of pin 2 is set to function for pulse operation, and when the flag is set to 6, it is set whether or not the input of pin 2 is auto-started. As described above, the flag of the table T3 represents the operation mode for the input of the pin 2 of the connector CN4, and indicates the type of the control parameter that is changed from the basic setting in the pin 2 of the connector CN4 and changed to the pin 2 of the connector CN4. It is an identifier.

The tables T4 to T6 store operation modes for the inputs of the rotary switches RS1, RS2, and RS3, respectively. When the flag in the table T4 is set to 0, the default setting speed switching operation as shown in Table 10 is performed, and the larger the scale, the faster the speed setting. On the other hand, when the flag of the table T4 is set to 1, an operation corresponding to the setting from an external information processing apparatus such as a personal computer is performed. Similarly, when the flag of the table T5 is set to 0, the default soft start time switching operation as shown in Table 11 is performed. When the flag of the table T6 is set to 0, as shown in Table 12. The default setting soft stop time is switched, and the longer the scale, the longer the time. On the other hand, when the flags of the tables T5 and T6 are set to 1, an operation corresponding to the setting from an external information processing apparatus such as a personal computer is performed. As described above, the flags in the tables T4 to T6 represent the operation modes for the inputs of the rotary switches RS1, RS2, and RS3, respectively, and are changed from the basic settings of the rotary switches RS1, RS2, and RS3. It is an identifier indicating each type of each control parameter that is changed and set in RS1, RS2, and RS3.

Tables T7 and T8 store operation modes for inputs of the DIP switches DIP1 and DIP2. If the flag of the table T7 is set to 0, the default setting value of the DIP switch DIP1 as shown in Table 6 is valid, and the flag of the table T7 is set to 1 on the contrary. If so, the setting from an external information processing apparatus such as a personal computer becomes effective. Similarly, when the flag of the table T8 is set to 0, the default setting value of the DIP switch DIP2 as shown in Table 9 becomes valid, and the flag of the table T8 is set to 1 in contrast thereto. The setting from an external information processing apparatus such as a personal computer becomes effective. As described above, the flags of the tables T7 and T8 represent the operation modes for the inputs of the dip switches DIP1 and DIP2, respectively, and are changed from the basic settings in the dip switches DIP1 and DIP2 and are changed and set in the dip switches DIP1 and DIP2. It is an identifier indicating the type of.

The table T9 stores detailed control parameters of the motor, which will be described later. In this embodiment, control parameters for eight types of motors are set in advance by default settings. When the user uses a motor that is not in the default setting, in this table T9, for example, regarding one type of motor having the most similar characteristics, an arbitrary control parameter can be set from an external information processing apparatus such as a personal computer. And use its control parameters.

The table T1 stores the remaining common control parameters that are not set in the tables T2 to T9.

The CPU 11 is provided with a motor drive table reading unit 11a for reading the tables T1 to T3, and is provided with a mode setting reading unit 11b for reading the tables T4 to T8, for reading the table T9. A motor setting reading unit 11c is provided.

Tables 13 and 14 show examples of specific stored contents of the table T9. The table T9 stores detailed control parameters of the motor as described above. The number of control parameters per motor is 17 items, and up to 8 types of motors can be stored as described above. Therefore, the total number of control parameters for the motor is 136. Table 15 shows the functional description of each control parameter.

As shown in Tables 13 and 14, the parameter numbers (items) 0 to 16 are the first type motor (Company A 1, rating 28 W), and 17 to 33 are the second type motor. (Company B, rating 40W), 34 to 50 are the third type motor (Company A 2, rating 20W), 51 to 67 are the fourth type motor (Company C 1, rating 50W), 68 ˜84 is a fifth type motor (Company D1, rated 50W), 85˜101 are sixth type motors (Company E1, rated 22W), and 102˜118 are seventh type motors. (Company D, rating 35 W) and 119 to 135 respectively indicate the eighth type of motor (Company A 3, rating 40 W). Of these eight types of motor control parameters, the motor setting reading unit 11c of the CPU 11 reads out which motor control parameter is read in advance by switches SW6 to SW8 of the DIP switch DIP1, as shown in Table 7. Is set. In Table 13 and Table 14, the upper limit value and the lower limit value that can be set for each control parameter are common, and are shown only for the first type of motor.

Table 16 shows an example of specific storage contents of the remaining tables T1 to T8. The control parameters of these tables T1 to T8 are the same regardless of the type of motor, that is, whichever motor is used.

As shown in Table 16, the parameter number (item) 136 indicates whether each setting of the DIP switches DIP1, DIP2 and the rotary switches RS1, RS2, RS3, which are operation input units, is based on hardware settings, or a personal computer or the like It is shown whether it is based on the software setting by the external information processing apparatus. More specifically, in binary data, bit 1 is DIP switch DIP1, bit 2 is DIP switch DIP2, bit 3 is rotary switch RS1, bit 4 is rotary switch RS2, and bit 5 is rotary. Each representing the switch RS3, its bit value is enabled at 1, ie, the switch is hardware set, while the bit value is disabled, ie, the switch is software set. The setting mode of these switches is displayed as hexadecimal data. Therefore, combinations of 2 ⁵ = 32 can be set, and 0XFFE0 to 0XFFFF are expressed in hexadecimal data. Table 17 shows the setting contents in each hexadecimal data.

Note that the settings by these DIP switches DIP1, DIP2 and rotary switches RS1, RS2, RS3 realize different functions in hardware setting and software setting, such as pin 3 of connector CN3 and pin 2 of connector CN4. Rather, realize the same function. That is, in the hardware setting mode, for example, the CPU 11 causes the motor 14 to rotate forward when the switch SW1 of the dip switch DIP1 is set to ON, and reversely operates when the switch 11 is set to OFF. Of course, in the software setting mode, regardless of whether the switch SW1 of the DIP switch DIP1 is ON or OFF, if the software setting is ON, the forward operation is performed, and if it is OFF, the reverse operation is performed. Become.

In the next parameter number, 137 stores the software setting of the DIP switch DIP1, that is, stores the setting contents in the flag 1 of the table T7. The dip switch DIP1 includes the 10-pole switches SW1 to SW10 as described above, and there are 2 ¹⁰ = 1024 setting patterns. If this is expressed in hexadecimal, it is 0X0000 to 0X03FF.

Similarly, in the next parameter number, 138 stores the software setting of the dip switch DIP2, that is, stores the setting contents in the flag 1 of the table T8. The dip switch DIP2 includes the 6-pole switches SW11 to SW16 as described above, and there are 2 ⁶ = 64 setting patterns. If this is expressed in hexadecimal, it is 0X0000 to 0X003F.

Further, the parameter numbers 139, 140, and 141 store the software settings of the rotary switches RS1, RS2, and RS3, that is, the setting contents in the flag 1 of the tables T4, T5, and T6. The rotary switches RS1, RS2, and RS3 are 16 scales of 0 to 15, and are 0X0000 to 0X000F in hexadecimal display.

Hereinafter, parameter numbers 142 to 150 are used for storing the setting contents of the table T1. Among them, for example, the parameter number 143 stores the gap time in the train mode corresponding to the switch SW15 of the dip switch DIP2.

The parameter number 150 stores the contents set in the flags 1 to 6 of the table T2 corresponding to the pin 3 of the connector CN3. The setting contents of the flags 1 to 6 are as described above. Similarly, the parameter number 151 stores the contents set in the flags 1 to 6 of the table T3 corresponding to the pin 2 of the connector CN4. The setting contents of the flags 1 to 6 are as described above.

The parameter number 152 switches the setting of the switch SW2 of the DIP1 and the rotary switches RS2 and RS3. When the parameter number is set to 0, the standard setting as described above, that is, the speed switching, soft start and soft stop is performed. The time is set. On the other hand, when it is set to 1, it is a speed setting for two-speed shifting using the switches SW12 and SW13 of DIP2. If it is set to 2, the rotary switch RS2 is commonly used for setting the soft start and soft stop times, and the vacant rotary switch RS3 is used for setting the speed for two-stage shifting. Furthermore, when it is set to 3, the speed is set from an external information processing apparatus.

Thereafter, detailed control parameters may be determined as necessary. In Table 16, it is shown that the switching rotational speed of the two-stage shift is set to the control parameter of the subsequent number 153.

In the motor drive device 1 configured as described above, when an abnormality occurs, the CPU 11 displays the self-diagnosed error state by the blinking mode of the light emitting diode D1 connected to the pin 4 of the connector CN3. Table 18 shows an example of the flashing mode, error contents, detection conditions, and return conditions.

It is possible to recognize what kind of error has occurred by the blinking of the light emitting diode D1. However, when the cause is unknown and the case is examined, the case is removed, and the control parameter set in the EEPROM 12 is confirmed by connecting an external information processing device such as a personal computer to the connector CN7. can do. Using this function, the setting of the DIP switches DIP1, DIP2 and the rotary switches RS1, RS2, RS3, which are micro components, can be confirmed from the external information processing apparatus or stored in the tables T1 to T8 of the EEPROM 12. It is possible to rewrite existing control parameters. Further, when using a rare motor or a new motor that is not widely used, the motor control parameters stored in the table T9 can be rewritten. As a result, it is possible to improve the convenience at the time of shipment inspection and specification change.

FIG. 5 is a diagram showing an example of a checker screen displaying the contents of the CPU 11 of the control microcomputer 10 in the external information processing apparatus such as the personal computer. Such a screen display in the external information processing apparatus can be realized by using a general-purpose program and a GUI function that read and rewrite the contents of the control microcomputer 10 as appropriate. The example 6 is merely an example of a GUI (Graphical User Interface) screen. As the general-purpose program, for example, HyperTerminal, which is communication software (terminal emulator) installed in the Windows (registered trademark) series of Microsoft Corporation, is used.

In FIG. 5, the GUI screen is roughly divided into an I command, an A command, an S command, a D command, and a PW command.

The A command displays the analog output state (voltage, current, speed command) related to the motor 14 in the area A0. The S command displays the state of the motor 14 (operation state, set rotational speed, actual rotational speed, output%, abnormal state) in the area A1. In the example shown in FIG. 5, the region A1 indicates that the motor 14 is currently in operation and is rotating in the opposite direction slightly slower than the set rotational speed. Further, in the area A1, if the vehicle is stopped, “stopped” is displayed, and if an abnormality has occurred, what kind of abnormality has occurred is displayed.

The D command displays the operation operation screen of the motor 14 in the area A2. By operating a button on the operation screen in this area A2, it is possible to instruct the operation of the motor 14 by remote operation. For example, it is possible to instruct the motor 14 to perform reverse rotation by operating the “reverse” button with a mouse.

The PW command displays a screen for changing the settings of the tables T1 to T9 in the EEPROM 12 of the control microcomputer 10 in the area A7. The operation by the PW command will be described in detail with reference to FIG. 6, which is an example of a motor parameter checker screen.

The I command is input to the area A10 including the areas A3 to A6 from the operation input ends of the DIP switches DIP1, DIP2 and the rotary switches RS1, RS2, RS3, and the input / output ends of the connectors CN1, CN3, CN4, CN5, CN6, etc. Displays the input status. More specifically, the setting of the scales of the rotary switches RS1, RS2, and RS3 and the actual control parameters based on the scales are displayed in the area A3. In the case of the above-described software setting, the scale display is, for example, “-” indicating that, and only the setting contents are displayed.

In the area A4, the settings of the switches SW1 to SW10 in the DIP switch DIP1 and the actual control parameters according to the settings are displayed. In the case of the above-described software setting, the setting display is, for example, “−” indicating that, and only the setting content is displayed. Similarly, in the area A5, settings of the switches SW11 to SW16 in the DIP switch DIP2 and actual control parameters according to the settings are displayed. In the area A6, external input is shown, and sensor input from the connector CN4 of the own device, sensor signal transfer input of the adjacent motor drive device from the connectors CN5 and CN6, error input, and the like are displayed.

While referring to the display as described above, an operator (user, operator) can appropriately rewrite the flags and contents of the above-described tables T2 to T8 in the software mode. Further, as shown in FIG. 6, the operator can also change the motor parameters. In the example of FIG. 6, the operator is trying to change the speed control gain at the minimum speed of the motor of company B from the parameter number 25, that is, from Table 13, as indicated by area A71. On the other hand, when changing many control parameters for one or more types of motors, select batch acquisition of area A72 to acquire all motor control parameters in a text data format, for example. It is possible to perform update setting in the EEPROM 12 by selecting the batch setting of the area A73 after changing the necessary part. Similarly, the contents of the control table T1 storing other control parameters can be appropriately rewritten.

As described above, the motor drive device 1 according to the present embodiment can drive the motor 14 associated with the own device in advance, one or a plurality of input / output terminals (I / O including sensor input / output) or In the motor drive device having an operation input terminal, when the CPU 11 drives the motor 14 via the inverter 13, at least a part of the control parameters of various items used for the drive and stored in the EEPROM 12. Are stored in a plurality of types, and the CPU 11 as a selection means selects them alternatively.

For this purpose, the CPU 11 drives the motor 14 based on various items of control parameters stored in the EEPROM 12, such as motor characteristics, sensor input / output, operation input / output, and control mode. Among the parameters, at least a part of input / output terminals (in the example shown in FIG. 4, pin 3 of connector CN3 and pin 2 of connector CN4) or operation input terminals (in the example shown in FIG. 4, DIP switches DIP1, DIP2 and rotary Regarding the control parameters of items relating to the switches RS1, RS2, RS3, etc., a plurality of types (for example, a plurality of types of control parameters having different attributes) are stored in advance in the tables T2 to T8, and the CPU 11 determines which Depending on whether the flag is set, it is selected alternatively.

For example, in the example shown in FIG. 4, the CPU 11 uses the input from the open / low photocouplers PC1 and PC3, and in the default setting (flag 0), the input from the photocoupler PC1 is the sensor input, and from the photocoupler PC3. While the input is handled as an input for switching between forward and reverse rotation directions, the other setting (flag 1) is handled as an input for changing the speed between 1st and 2nd. Further, the CPU 11 reads the ON / OFF states of the dip switches DIP1 and DIP2 and the scales of the rotary switches RS1, RS2, and RS3 as they are in the default setting (flag 0), while corresponding to other settings (flag 1). The stored contents of tables T4 to T8 are followed.

Thus, the motor drive device 1 according to the present embodiment can change the function assignment of at least some of the input / output terminals or the operation input terminals, thereby reducing the number of input / output terminals and operation input terminals. Without increasing, it is possible to widen the range of function selection and improve convenience and versatility. Therefore, in the case of a motor driving device that includes the input / output end or the operation input end and can be driven by a so-called stand alone, that is, without a host device that performs overall control of a large number of motors. The motor drive device can be suitably implemented.

In the above example, in the tables T4 to T8, the switch parameter corresponding to the flag 0 is not stored in the EEPROM 12, and the flag in the tables T4 to T8 is set to 0 when the CPU 11 reads the setting. If this is the case, the settings of the DIP switches DIP1 and DIP2 and the rotary switches RS1, RS2 and RS3 are confirmed directly, but the motor drive device 1 is configured so that the settings are read in advance and stored in the EEPROM 12. Also good.

In addition, when the above-described change in function allocation is performed on the input ends (pin 3 of connector CN3 and pin 2 of connector CN4) by connectors CN3 and CN4, a little larger is placed ahead of connectors CN3 and CN4. Switching of functions with different assignments can be performed easily by attaching a switch or pulling out the operation unit to another place with a cable. Further, when the operation unit or the like is pulled out from the connectors CN3 and CN4 in this way, when the drawn pins are inputs of the photocouplers PC1 and PC3, the degree of freedom of the components connected to the connector such as a switch is increased. It spreads and is suitable.

Further, since the CPU 11 is connected to an external information processing apparatus via the communication connector CN7 and the control parameter is changed using the GUI function of the information processing apparatus, the input of the photocouplers PC1 and PC3 It is easy to change the function assignment, and it is also easy to enable / disable the functions of the DIP switches DIP1 and DIP2 and the rotary switches RS1, RS2, and RS3 that are minute parts for operation input.

Further, on such a GUI screen, the setting status of the control parameter can be confirmed, which is convenient for confirming the setting status of minute parts such as the DIP switches DIP1, DIP2 and the rotary switches RS1, RS2, RS3. Therefore, the motor drive device having such a configuration can easily perform fine adjustments (setting of the control parameters) for each customer by using the GUI screen as a shipment inspection screen of the motor drive device 1. Can do.

Further, in the roller conveyor device, a relatively small-scale roller roller is driven by a motor drive device that is associated in advance. , Several, or in some cases, several tens or more. For this reason, by configuring the roller conveyor device by including the motor driving device 1 as described above and a conveyor roller whose internal motor is driven by the motor driving device 1, the roller conveyor device having such a configuration is As described above, the function assignment of the input / output terminal or the operation input terminal can be easily changed, which is preferable.

This specification discloses various modes of technology as described above, and the main technologies are summarized below.

A motor drive device according to one aspect is a motor drive device including a drive unit that drives a motor associated with the own device in advance based on a plurality of items of control parameters set in the own device. The input / output end or the operation input end of each of the items and the control parameters of each of the items are stored, and a plurality of controls are performed on the control parameters of the items relating to at least a part of the one or more input / output ends and the operation input end. A storage unit that stores parameters, and a selection unit that selectively selects the control parameters of the items related to the at least part of the storage unit from among the plurality of control parameters, and the drive unit includes: Among the control parameters for each item necessary for driving the motor, items for which the plurality of control parameters exist are selected by the selection unit. Using a control parameter to drive the motor.

In the case of a motor drive device that drives one or a plurality of input / output terminals or operation input terminals in a motor drive apparatus that drives a motor associated in advance with the own machine, control parameters that are the basis of the drive can be changed. The

Therefore, in the motor drive device having the above configuration, the drive unit drives the motor based on control parameters of various items stored in the storage unit, for example, motor characteristics, sensor input / output, operation input / output, and control mode. In this case, among the control parameters of each item stored in the storage unit, one or a plurality of input / output terminals (I / O including sensor input / output) and operation input terminals are items related to at least a part. With respect to the control parameters, a plurality of types of control parameters are stored and are alternatively selected by the selection unit. That is, the function assignment of at least a part of the one or more input / output terminals and the operation input terminal can be changed. For example, the input end corresponding to the forward / reverse rotation direction switching for the high / low input corresponds to the 1st / 2nd speed shift.

Therefore, the motor driving device having such a configuration can expand the range of function selection and improve convenience and versatility without increasing the number of input / output terminals and operation input terminals.

In another aspect, in the motor drive device described above, at least a part of the one or more input / output terminals and the operation input terminal is an input terminal by a connector.

In the motor drive device having such a configuration, an input end by a connector is used as the partial input / output end or operation input end capable of changing the function assignment. As a result, the motor drive device having such a configuration is to attach a switch that is easy to operate, such as a slightly larger switch, or pull out the operation part to another place with a cable. Therefore, it is possible to easily switch functions with different assignments.

According to another aspect, in the motor drive device described above, at least a part of the one or more input / output terminals and the operation input terminal is a photosensor input and a photocoupler input that detects a switch operation. Either one.

In the motor drive device having such a configuration, when the operation unit or the like is first pulled out of the connector as described above, the degree of freedom of components connected to the connector, such as a switch, is increased by being a photocoupler input. Is preferred.

According to another aspect, in the above-described motor drive device, the selection unit is connected to an external information processing device via an input / output terminal for communication, and uses the GUI function of the information processing device. The control parameter is changed.

In the motor drive device having such a configuration, the selection unit is connected to an external information processing device such as a personal computer via a communication input / output terminal, and uses the GUI function of the information processing device. The control parameter can be changed. Therefore, the motor drive device having such a configuration can easily change the function assignment to the input / output terminals such as the photocoupler input and the operation input terminals such as the dip switch and the rotary switch.

In another aspect, in these motor drive devices described above, the GUI screen is used as a shipment inspection screen of the motor drive device.

In the motor drive device having such a configuration, since the setting state of the control parameter can be confirmed on the GUI screen, the setting state of the input / output terminal and the operation input terminal can be easily confirmed. It is particularly suitable for the case of minute parts such as the dip switch and rotary switch. Therefore, the motor drive device having such a configuration can easily perform fine adjustments (setting of the control parameters) for each customer by using the GUI screen as a shipment inspection screen of the motor drive device. .

Further, a roller conveyor apparatus according to another aspect includes any of the above-described motor driving apparatuses and a conveyor roller in which a built-in motor is driven by the motor driving apparatus.

In a roller conveyor device, there are several conveyor rollers and motor drive device pairs (sets), and in some cases, several tens or more. Therefore, in the roller conveyor device having such a configuration, it is preferable that the motor drive device can easily change the function assignment of the input / output end or the operation input end as described above.

In order to express the present invention, the present invention has been appropriately and fully described above with reference to the drawings. However, those skilled in the art can easily change and / or improve the above-described embodiments. It should be recognized that this is possible. Accordingly, unless the modifications or improvements implemented by those skilled in the art are at a level that departs from the scope of the claims recited in the claims, the modifications or improvements are not covered by the claims. To be construed as inclusive.

According to the present invention, it is possible to provide a motor driving device for driving a motor and a roller conveyor device using the same.

Claims

In a motor drive device including a drive unit that drives a motor associated with the own machine in advance based on a plurality of control parameters set in the own machine,
One or more input / output terminals or operation input terminals;
Storing a control parameter of each item, a storage unit storing a plurality of control parameters for the control parameter of the item relating to at least a part of the one or more input / output terminals and the operation input terminal;
A selection unit that selectively selects from among the plurality of control parameters for the control parameter of the item related to the at least part in the storage unit;
The drive unit drives the motor using the control parameter selected by the selection unit for the items in which the plurality of control parameters exist among the control parameters of each item necessary for driving the motor. The motor drive device characterized by this.
The motor driving apparatus according to claim 1, wherein at least a part of the one or more input / output terminals and the operation input terminal is an input terminal by a connector.
The at least one of the one or more input / output terminals and the operation input terminal is one of a photosensor input and a photocoupler input that detects a switch operation. Motor drive device.
The selection unit is connected to an external information processing apparatus via an input / output terminal for communication, and changes the control parameter using a GUI function of the information processing apparatus. The motor drive device according to claim 3.
The motor drive device according to claim 4, wherein the GUI screen is used as a shipment inspection screen of the motor drive device.
The motor drive device according to any one of claims 1 to 5,
A roller conveyor device comprising: a conveyor roller whose built-in motor is driven by the motor driving device.