18. Communication Interfaces

18.1 Remote Contacts

The remote contacts interface is provided as a set of solid state switching devices. The switches are available through a DB9 male connector on the rear of the UPS. The following chart shows the pin assignment for each signal.

MAXIMUM CURRENT CARRYING CAPACITY

DB9 MALE CONNECTOR OUTLINE

OF THE SWITCH

(FACING CONNECTOR)

 

 

 

Voltage

Current

 

48 Vdc peak

70 mA peak

 

30 Vac rms

50 mA rms

 

(42 Vac peak)

(70 mA peak)

 

Pin

Signal Function

Logic

In the UPS

1

Fault Signal

Closed when fault detected

 

 

 

 

 

2

UPS stop common

Backup stop when the level

 

3

UPS stop signal input

changes from Low (-3 to -15 V) to

 

High (+3 to +15 V)

 

 

 

 

 

 

 

 

4

Normal input power supply

Closed with normal supply power

 

 

 

 

 

5

Signal common

Common signal return

 

 

 

 

 

6

Bypass operation

Closed during bypass operation

 

 

 

 

 

7

Battery voltage drop

Closed at voltage drop

 

 

 

 

 

8

UPS operation

Closed during inverter operation

 

 

 

 

 

9

Power failure signal

Closed at power failure

 

 

 

 

 

NOTE:

Pin switches are shown in their inactive states. For example, if battery voltage is low, pin 7 will be connected to pin 5.

1600XP Series Installation and Operation Manual

39

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Image 49
Toshiba 1600XP operation manual Communication Interfaces, Remote Contacts, Current Vdc peak MA peak

1600XP specifications

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