Communication

Pin

Function

Description

 

 

 

5

Normally-Open

A normally open contact that closes (pulls to Common) to signal a Near Low Battery or

 

Low-Battery-Alarm

Low Runtime alarm. Values that affect this contact closure may be user-programmed.

 

Contact*

 

 

 

 

6

Reserved

Reserved

 

 

 

7

Immediate Shutdown

Set by External Shutdown parameter, n = 0:

 

Mode

Grounding this pin for 5 seconds causes the UPS to switch immediately to the Off

 

 

mode. When AC input power returns, the UPS will not restart without user intervention.

Remote Shutdown Mode

Set by External Shutdown parameter, n = 1 or greater:

In battery operation, grounding this pin for 5 seconds causes the UPS to shut down after a delay of X minutes, regardless of the return of AC input power. This time is defined by the External Shutdown mode parameter n, where n and X are related as follows:

n

X

n

X

1

2

4

5

2

1

5

10

3

3

6

20

8

Normally-Closed

A normally closed contact that opens (releases from Common) 15 seconds after the UPS

 

On-Battery Contact

switches to battery power.

 

 

 

9

Normally-Open

A normally open contact that closes (pulls to Common) whenever the UPS is in internal

 

Bypass-Switch-Status

bypass mode or is being externally bypassed and is being signalled of the external

 

Contact*

bypass.

*Contacts consist of open-collector circuits capable of switching up to +40 Vdc, 50 mA resistive load.

72

Powerware® 9170 User's Guide ￿ LTM-1344 B Uncontrolled Copy