JPS62107638A - Source control - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of application on parallel racks] The present invention relates to a power supply control system, particularly to an improvement in a power supply control system for a DC stabilized power supply.

[Conventional technology]

Generally, in data processing devices and the like, a variety of 'OL sources are used as needed. DC stabilization '1cm
It is also one of the seven and is the one with the highest demand. As the number of devices that serve as loads increases, power sources that can supply a wide variety of low voltages and large currents are required.

In order to meet the above demand, a plurality of PMs (power modules, i.e., DC-DC converters; hereinafter referred to as P
It's called M. ) is a dL source that includes a plurality of power units that are collectively controlled by - control units. Conventionally, in such a power supply, separate cables are used to connect the control unit and each PM, and the signals in the cables are hardwired Drosic level signals. Therefore P.M.
As the number of PMs increases, the number of cables described above increases, and there is a drawback that connectors corresponding to the number of PMs must be arranged in parallel on the control section side.

Furthermore, in hardware-wired Drossic, the connection relationship between the control unit and the PM is simplified as much as possible in order to make it more compact and lightweight, so it is not possible to collect log data that shows the operation history of the PM. Therefore, there is also the drawback that sufficient data required for maintenance work cannot be obtained. Note that collecting the above-mentioned log data using hardware-wired Drosic requires a significant increase in the number of parts, so it is impossible to achieve this with a conventional power supply size.

[Problem that the invention seeks to solve]

The problem to be solved by the present invention, in other words, the purpose of the present invention is to provide a power supply control system that improves the above-mentioned drawbacks by changing the connection relationship between the control unit and the PM.

[Means to prevent the loss of interstitial points]

The power supply control method of the present invention includes n (n≧1) DC-DC
-D C-I) A power supply control method for a DC stabilized power supply comprising m units (m≧1) of power supply units each having a control unit that instructs the operation of the C-change unit, wherein the control unit D
a send line for transmitting a signal instructing the operation of the C-DC converter; a receive line for transmitting a signal for the DC-DC converter to respond to instructions from the control unit; A power supply alarm wire to notify the control unit of all failures;
The control section has an emergency cutoff line for unconditionally cutting off the power to all the DC-DC conversion sections, the send line and the receive line are each a serial data interface, and the power supply alarm line and the emergency cutoff line are provided. The cutting line is characterized in that it is a hardwired Drossic interface.

〔Example〕

Hereinafter, a power supply control method according to the present invention will be explained with reference to the drawings.

FIG. 1 is a system configuration diagram showing one embodiment of the present invention. In the figure, a system unit 3 for storing a load is comprised of a master unit 1 and a slave unit 2. Note that a plurality of slave units 2 may be connected in parallel to form a system unit 3 together with one master unit 1.

The mask unit 1 includes a plurality of PMs 20, 20a and 2
0b, a mask control unit 10 that collectively controls these PMi, a cooling unit 30 that cools heat generating parts such as PM,
The rectifying section 40 rectifies the AC power input 110 from the outside, and supplies the logic section 50 with a DC stabilizing source '1.

The slave unit 2 has multiple PM21.
21a and 21b, a slave control section 11 that centrally controls these PMs, and a cooling section 31 that cools heat-generating parts such as the PM. It is supplied with AC power supply 112 and supplies DC stabilized power to logic section 51 .

The mask control unit 10 controls a plurality of PMs 20, 20a and 20b through a PM interface 100 (described later).
K is connected to turn on/off Tani PIVI and collect log data. It is also connected to the rectifier 40 by a PB (power bulk) interface 101 and connected to the DC power supply 111.
It also controls the output of the AC power source 112, and is connected to the cooling unit 30 by a PC8 (power cooling system) interface 104 to control its functional operation. Furthermore, it is connected to the logic section 50 by a 5SC (subsystem control) interface 103 to prevent transient states at the time of turning on and off each PM from being applied to the logic section 50 . Furthermore, it is connected to the slave control section 11 by an MSC (master slave control) interface 102, so that the slave control section 11 can control the rectification section 40 via the master control section 10.

In other words, since the rectifier 401'j is provided in the master unit 1, if you want to operate only the slave unit 2, you can control the rectifier 40 from the slave controller 11 as described above. The control unit 11 is a PM interface 1
Multiple PM21, 21a and 21b by 00a
It is connected to the network to turn each PM on and off and collect log data. It is also connected to the cooling unit 31 through a PCS interface 104a to control its functional operation. Furthermore, the logic section 51 is connected to the SSC interface 103a.
is connected to prevent the transient state at the time of on/off of each PM from being applied to the logic section 51.

The rectifier 40 inputs the AC power input 110 and converts %PM to the DC power supply 111 according to instructions from the PB interface 101.
K, AC x source 11z<q flow i [through output of input 110] is sent to each cooling section.

Note that the 5CB (serial control bus) interface 105 is connected to the master control unit 10 and slave control unit 11.
are connected to each to instruct each operation. Also each P
Log data etc. sent by M are sent through SCB interface 1.
The data is sent to a higher-level maintenance device, etc. via 05 and 1g.

FIG. 2 is a connection diagram showing the details of the PM interface, which is the main part of the invention. A send line 121 and a receive line 12 that sends responses (described later) from 2M20.20a and 20b corresponding to the above command.
2 and %Emergency disconnection that instructs to turn off the vL source of all PMs when a failure occurs in PM, etc. #1123 and PM
The alarm line notifies the master control unit 10 of a malfunction. Each PM20, 20ae and 20b has seven address switches, cheers 0, 70a and 70tl so that each PM can be identified.In this example, the case where there are three PMs is illustrated. However, even if the number of PMs is four or more or two or less, the 2M interface 100 can be configured and configured in exactly the same manner as shown in FIG. 2.

Further, the PM interface 100a is also configured in exactly the same manner as described above.

FIG. 3 is an explanatory diagram showing the format of commands sent by the mask control section 10.

Type I is a two-word format command, and DCON
1, that is, this is a command that instructs to turn on all P M f.

Type ■ is a 3-word command: ab, ACK, N.
ACK, 8gN5E 5TATUS, RE person DDATA
There are six buildings: , DCON 2, and DCOFF 2.

Type ■ is a 5-word format command, and VOLT
SET', that is, a command that instructs the output voltage setting value of each PM.

EMERGENCY DISCONNECTION DCOF'F1) is configured with dwired logic and commands to turn off all PMs? do. This means that when the PM is reporting an alarm, it is still possible that the PM is reporting an alarm.
Sent when there is no response.

FIG. 4 is an explanatory diagram showing the format of responses sent by each PM 20, 20a, and 20b.

Type A is a 3-word response with i, ACK,
NACK, Oyohi 8'f'A'f'US ノ3 t
lZAl.

Type B is a variable length format response whose length is determined by DTL (data length), and is
There are two branches of DATA.

vL source alarm POW ALM is hardware logic,
It is sent when the PM fails. This allows it to operate even when there is no normal response due to an interface error or the like. Note that if the interface is normal, 0GDATA can be sent by the above type B response.

FIG. 5 is an explanatory diagram showing an example of the operation of the 2M interface 100. In the figure, it is assumed that the master unit 1 is operating normally. At this time, if a failure occurs in 2M20, 2M20 transmits POWALM to master control unit 10. The master control unit 10 controls this POW Al, M
When received, DCOFF 1 is sent to ib and each PM
20, 20a and 20b are instructed to turn off the power. Then, it sends the IN5E 8TATU8 command to PM20 to inquire about the status of PM2Q. PM20 is 5EN
5 TATU when receiving SES'I'ATUS command
Reply with S response. The ALM (alarm) bit in this 5TATUS response is 111, indicating a failure.

The mask control unit 10 transmits the RgAI)DATA command to investigate the above-mentioned failure in more detail. PM20
Upon receiving this BAD DATA command, the LOG DATA response sends back data that indicates the failure status. Thereafter, they mutually send and receive ACK'i to confirm that the response has been completed normally.

Further, the master control unit 10 controls P M 20 a and 20
The Sfi:NSB 8TATUS command is also sent to each node b to request a 5TATUS response. PM20a and PM20b are both normal, so
AL, M, and G in these STA'rU8 responses are all 101.

The same @l operation as described above is also realized by the PM interface 100aKh of the slave unit 2.

〔Effect of the invention〕

As explained above, according to the power supply control method of the present invention, a serial data interface is used for connection between the control unit and the PM, so even if the number of PMs increases, the connection to the control unit can be maintained. There is no need to add all connectors. In other words, only one connection is required on the control unit side regardless of the number of PMs.

Further, since PM log data can be collected using the serial data interface, it is effective in that maintenance work such as failure recovery can be quickly handled.

Furthermore, since it is possible to automate the setting of the PM output '1 pressure, the voltage margin test, etc., the operability of various operations is improved and the efficiency of calibration and maintenance work is improved.

Furthermore, since the above-mentioned interface cable is made smaller and its total length can be shortened, there is also the effect that manufacturing costs can be reduced.

[Brief explanation of drawings]

Figure 1 is a system ellipse diagram showing an embodiment of the power control method according to the present invention, Figure 2 is a connection diagram showing the rules for the PM interface in Figure 1, and Figure 3 is a command format for power control. FIG. 4 is an explanatory diagram showing a response format for power supply control, and FIG. 5 is an explanatory diagram showing an example of a response during operation. 1...Mask unit, 2...Slave any. g, 10... Master control section, 11...
Slave control unit, 20@20a/20b@21/21a
・21b...DC-DC converter, 100...
...PM interface, 121... Send line, 122... Receive line, 123...
...Emergency disconnection line, 124...Power alarm line 0, ・'- Agent Patent attorney Susumu Uchihara・' ゛ushiλ Figure 70.70α, 70b ---Atsushisuke too ---PM Ishik Face 12/-Section 7 Elephant/2,1)--Receiver F23-Ki Sapporo dt'5-q5 Corps 7 Ram rz 3 zu (Note) CN bottom---Komashito゛ Aotz--Atoshi DTL-〒-qTable D Buri-Rashi9. Ll
? C--Water ζ Hibasokeimu 4 Figure +3E) AcJk"-1'to'L2 R5P
'-L<K,';:j DTL -4'-y4hiDTND, 'r''-7LRC--tojζ
1゛ゞ, i-defy Figure S

Claims (1)

[Claims] m units (m≧1) having n (n≧1) DC-DC conversion units and a control unit that instructs the operation of the DC-DC conversion units
A power supply control method for a DC stabilized power supply including a power supply unit, comprising: a send line through which the control section transmits a signal instructing the operation of the DC-DC conversion section; a receive line that transmits a signal in response to an instruction; a power alarm line that notifies the control unit of a failure in the DC-DC converter; and the control unit unconditionally supplies power to all the DC-DC converters. and an emergency disconnection line that disconnects, the send line and the receive line are each a serial data interface, and the power supply alarm line and the emergency disconnection line are hardwired logic interfaces.