CN101783498A

CN101783498A - Modularized microcomputer motor protective monitoring device

Info

Publication number: CN101783498A
Application number: CN200910045539A
Authority: CN
Inventors: 戴顺辉; 张峰; 施红雷
Original assignee: SHANGHAI HUAJIAN ELECTRICAL EQUIPMENT CO Ltd
Current assignee: SHANGHAI HUAJIAN ELECTRICAL EQUIPMENT CO Ltd
Priority date: 2009-01-19
Filing date: 2009-01-19
Publication date: 2010-07-21

Abstract

The invention discloses a modularized microcomputer motor protective monitoring device. The device comprises a basic module, a communication module, a display module, a power module, an analog quantity input/output module, a state quantity input/output module and internal CAN bus. The device is characterized in that: the basic module comprises a minimum requirement system, is provided with a protection function, a measurement function and a management function, and can be independently operated to meet the requirement of low-end users; and the communication module, the display module, the power module, the analog quantity input/output module and the state quantity input/output module can be selected to meet the requirement of different users on different working conditions. The five modules except for the basic module can be increased or reduced at any time according to the user requirement; each module can perform independent test and is communicated with the basic module by adopting the CAN bus; and after being combined, the whole device can be used once the device is powered on, so that the aim of updating the system fast and safely or increasing functions for the device is fulfilled.

Description

Modularized microcomputer motor protective monitoring device

One, technical field

The present invention relates to a kind of microcomputer motor protective monitoring technique field, particularly microcomputer low-tension motor protection monitoring module technical field.

Two, background technology

General microcomputer motor protective device supervising device is integral type or demonstration and body separating type at present; all require to determine detailed model and function specification requirement at system design stage; after installing Installation and Debugging well, or the system upgrade after use a period of time, want to increase functions of the equipments; hardware capability particularly; often need integral demounting, change whole device, install with debugging cycle is long again; influence ordinary production, and bring a lot of uncertain insecurity to system.

Three, summary of the invention

The objective of the invention is increases function needs more changing device, excessive cycle, the defective that influences production and bring a lot of potential safety hazards to system in order to overcome system upgrade or device, designs a kind of modularized microcomputer motor protective monitoring device that can increase function flexibly.Its technical scheme that adopts is: comprise basic module (1), power module (4), quantity of state input/output module (6), analog quantity input/output module (5), communication module (2), display module (3) and inner CAN bus are in interior structure, it is characterized in that: complete machine is a core with basic module (1), pass through interface, power module (4) is connected with basic module (1), power module (4) inserts to be handed over, direct current 220V power supply, after the transformation to basic module (1), analog quantity input/output module (5), quantity of state input/output module (6) power supply, the other end of basic module (1) is connected with analog quantity input/output module (5), and analog quantity input/output module (5) is connected with quantity of state input/output module (6); Communication module (2) is connected with basic module (1), the number that communication module (2) is gathered is lifted signal by handling through basic module (1), basic module (1) is connected with display module (3), to inquire about all measurement data, record data, management data, and can inquire about and adjust various protection definite values and device parameter, quantity of state input/output module (6) provides 4 tunnel inputs, 8 tunnel inputs, 12 tunnel inputs and 2 tunnel outputs, 4 tunnel outputs, 6 tunnel output combination in any, basic module (1) has comprised the three-phase current input, the input of 2 line state amounts, the minimum essential requirement system of 1 line state amount output, and configuration comprehensively can be according to whole defencive functions of minimal hardware system, measurement function and management function; Defencive function has that quick-break, thermal overload, overcurrent, stall, imbalance, the phase failure, single-phase earthing, negative-phase sequence, starting are overtime, number of starts restriction, undercurrent, overflow protection, contactor error protection; the function of measuring has three-phase current, degree of unbalance, quantity of state; management function has activated, stops record, failure logging, quantity of state record, motor running time, motor operation number of times; show failure code, motor status, the hand-reset button is arranged.The positive effect of implementing after this technology is: but the basic module independent operating satisfies the low side user's request, cost is low, and size is little, and Installation and Debugging are simple and convenient; Communication module can be realized the system data communication, realizes the remote-control romote-sensing function; Display module can be realized panel operation, setting device definite value and parameter function; Power module can be realized alternating current 220V or direct current 220V power supply; Optional analog quantity input/output module (voltage, electric leakage, temperature and resistance, 4-20mA input), can realize measuring voltage, power, electric energy function, electric leakage, temperature and resistance, 4-20mA, realize under-voltage, overvoltage, underpower, restart, shake electricity, restarting function, electric leakage, temperature, analog quantity protection controlled function, realize that output function is sent in the change of electric current, voltage, power, resistance, electric leakage; Optional quantity of state input/output module can realize multiple starting control mode programing function, warning, circuit breaker control, plant failure, output function able to programme; 5 modules except that basic module can increase arbitrarily arbitrarily the time or reduce according to user's request, each module independent test, adopt the CAN bus communication with basic module, whole device combination finishes and only need re-power promptly and can come into operation, thereby reach quickly and safely system upgrade or device is increased function.

Four, description of drawings

Fig. 1 is a structural representation of the present invention;

Wherein: 1-basic module, 2-communication module, 3-display module, 4-power module, 5-analog quantity input/output module, 6-quantity of state input/output module;

Five, embodiment

Below in conjunction with accompanying drawing the present invention is further described:

See accompanying drawing 1, complete machine is a core with basic module (1), pass through interface, power module (4) is connected with basic module (1), power module (4) inserts AC and DC 220V power supply, to basic module (1), analog quantity input/output module (5), quantity of state input/output module (6) power supply, the other end of basic module (1) is connected with analog quantity input/output module (5) after the transformation, and analog quantity input/output module (5) is connected with quantity of state input/output module (6); Communication module (2) is connected with basic module (1); the number that communication module (2) is gathered is lifted signal by handling through basic module (1); basic module (1) is connected with display module (3); to inquire about all measurement data, record data, management data; and can inquire about and adjust various protection definite values and device parameter, quantity of state input/output module (6) provides 4 tunnel inputs, 8 tunnel inputs, 12 tunnel inputs and 2 tunnel outputs, 4 tunnel outputs, 6 tunnel output combination in any.

Basic module (1) but independent operating, other modules all are optional, power module (4) can insert friendship, direct current 220V power supply, display module (3) provides the man-machine interface of optimization, but communication module (2) provides different fieldbus modes, satisfy the different system requirement, analog quantity input/output module (5) has multiple analog quantity combination voltage input, the electric leakage input, the temperature and resistance input, the 4-20mA input, but 4-20 exports combination in any, satisfy different demands, quantity of state input/output module (6) provides 4 tunnel inputs, 8 tunnel inputs, 12 tunnel inputs and 2 tunnel outputs, 4 tunnel outputs, 6 tunnel output combination in any, satisfy different demands, select combination flexibly, the demand that satisfies the user that can be most economical, system upgrade and function increase only needs to change disparate modules, rapidly and efficiently safety.

See accompanying drawing 1, basic module (1) independent operating, different types of analog quantity input/output module (5) and quantity of state input/output module (6) when opening initialization can with basic module (1) exchange message, carry out operational analysis by basic module (1), sending instruction or information exports for analog quantity input/output module (5) and quantity of state input/output module (6), analog quantity input/output module (5) can change the electric quantity signal that the user needs into 4-20mA to be exported to long-range DCS or other table meters and shows or control, earthing display module (3) shows, analog quantity input/output module (5) and quantity of state input/output module (6) are issued basic module (1) to the signal of gathering, basic module (1) calculates, detect motoring, as find fault, to quantity of state input/output module (6) signal, carry out tripping operation, report to the police, starting control, remote control, the action of outlet such as restart, finish to the control of motor with by display module (3) user is sent caution, perhaps carry out efficient and send trip command, indication motor running status and discharge state and failure code, carry out accident treatment, reach safe operation.

Claims

1. modularized microcomputer motor protective monitoring device, comprise basic module (1), power module (4), quantity of state input/output module (6), analog quantity input/output module (5), communication module (2), display module (3) and inner CAN bus are in interior structure, it is characterized in that: complete machine is a core with basic module (1), pass through interface, power module (4) is connected with basic module (1), power module (4) inserts to be handed over, direct current 220V power supply, after the transformation to basic module (1), analog quantity input/output module (5), quantity of state input/output module (6) power supply, the other end of basic module (1) is connected with analog quantity input/output module (5), and analog quantity input/output module (5) is connected with quantity of state input/output module (6); Communication module (2) is connected with basic module (1); the number that communication module (2) is gathered is lifted signal by handling through basic module (1); basic module (1) is connected with display module (3); to inquire about all measurement data, record data, management data; and can inquire about and adjust various protection definite values and device parameter, be provided with the hand-reset button.

2. modularized microcomputer motor protective monitoring device according to claim 1 is characterized in that: quantity of state input/output module (6) provides 4 tunnel inputs, 8 tunnel inputs, 12 tunnel inputs and 2 tunnel outputs, 4 tunnel outputs, 6 tunnel output combination in any.

3. modularized microcomputer motor protective monitoring device according to claim 1; it is characterized in that: basic module (1) has comprised the three-phase current input; the minimum essential requirement system of the input of 2 line state amounts, the output of 1 line state amount, and configuration comprehensively can be according to whole defencive functions, measurement function and the management function of minimal hardware system.

4. modularized microcomputer motor protective monitoring device according to claim 3 is characterized in that: defencive function includes that quick-break, thermal overload, overcurrent, stall, imbalance, the phase failure, single-phase earthing, negative-phase sequence, starting are overtime, number of starts restriction, undercurrent, overflow protection, contactor error protection.

5. modularized microcomputer motor protective monitoring device according to claim 3; it is characterized in that: the functional packet of measurement contains three-phase current, degree of unbalance, quantity of state; management function has activated, stops record, failure logging, quantity of state record, motor running time, motor operation number of times, shows failure code, motor status.