Remote Ups Power Off; Figure Ff: Computer Interface Pin Out Diagram - Chloride SYNTHESIS User Manual

Figure FF: illustrates the operation of the contacts. All the status contacts are normally
open and close when the condition they describe are true. For example, when the battery
is supplying the load, pin 9 is shorted to pin 5.

Figure FF: Computer interface pin out diagram

The following table summarizes the electrical ratings of the contacts:
Table G: Dry contact ratings
Parameter
Rated voltage
Rated current (continuous)
Max. switching load (AC)
Max. switching load (DC)

4.1.4 REMOTE UPS POWER OFF

The UPS is provided with terminals allowing the installation of an external Emergency
Power Off (EPO) switch in addition to the switch on the front panel. A normally closed
switch must be used. The EPO becomes active when this switch opens (normally closed
contact).
To install the Remote EPO switch while the unit is running:
1. Put the unit in bypass mode (see Section 2.5).
2. Remove the jumper from the terminal.
3. Connect a normally closed switch to the terminals.
4. Make sure that the switch is closed! If the switch is open, the UPS will drop the
load upon return from bypass!
5. Follow the return from bypass procedure (see Section 2.6).
System normal
8 =
" ABNORMAL operation
6 =
Battery supplying load
9 =
Low battery
7 =
5 = Common
Rating
240VAC/300VDC
5A
2000VA
8A for VDC<35V
50 watts for 300V>VDC>35V
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