Fujitsu M400R, M600R UPS Control Interface, 146, External Interfaces, Connecting interfaces

Models: M200 M400A GranPower7000 (GP 7000F) M400R M600 M600R M200R

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CHAPTER 12 External Interfaces

12.1 UPS Control Interface

Overview The UPS control interface is used to perform temporary data saving processing. In this processing, a reserved interruption for software occurs when the uninterruptible power supply (UPS) is used to backup a power failure in the commercial AC power supply. In addition to this type of UPS control interface, there are several other UPS units that use the general-purpose interface such as RS232C.

Connecting interfaces

The configurations and definitions of the signal lines to be connected to the UPS system are shown below. Do not use pin numbers unspecified below to connect to the UPS system.

Table 12.1 Definitions of UPS Signal Lines

Signal

Definitions

Pin

Remarks

names

 

Nos.

 

 

 

 

 

BPS

Signal indicating faulty UPS

6

Enabled with ON.

 

conditions

 

 

 

 

 

 

BTL

Signal indicating that the UPS

7

Enabled with ON.

 

battery level has lowered and

 

 

 

that ineffectual battery char

 

 

 

ge may result after a certain

 

 

 

period of time (*1)

 

 

 

 

 

 

UPSON

Signal indicating the UPS is

8

 

 

operating

 

 

 

 

 

 

ACOFF

Signal notifying power failure

9

When power fails: ON

 

in the commercial AC supply

 

When power is normal:

 

connected to the UPS (*2)

 

OFF

 

 

 

 

SG

System ground signal

5

 

 

 

 

 

ER (*4)

Signal indicating the main

1

 

 

cabinet is operating (*3)

 

 

 

 

 

 

ON indicates contacts are closed.

OFF indicates contacts are open.

*1

The normal power supply should be maintained by the UPS battery for at least 10 to

 

60 seconds after the connecting interface signal is turned on.

*2

For momentary power supply interruption of the commercial AC power not

 

exceeding two seconds, the normal battery power supply without activating ACOFF*

 

is recommended.

*3

This connecting interface signal identifies the status of the main cabinet to prevent

 

supplying battery power in case the signal is in the OFF (LOW) state (the main

 

cabinet is stopped), even though a power failure is detected by the UPS.

*4

ER signal may be left unused.

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Fujitsu M400R, M600 UPS Control Interface, 146, External Interfaces, Connecting interfaces, Definitions of UPS Signal Lines

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