Remote Epo (Emergency Power Off); Emergency Power Off (E.p .O.) Push Button Connection; Connection To Personal Computer - Powertronix Quasar Service Manual

Chapter 2 - Installation
Setting Standard Relay Interface PCB

2.4.3 - Remote EPO (Emergency Power Off)

A connection is provided for a switch, which can be located remotely from the UPS, and which has the
same function as the internal EPO switch. When it is operated it shuts down the inverter, and inhibits the
static switch so that power is removed from the load.
WARNING
Pressing the Remote EPO push button will turn the inverter off and remove power from the
load.
The mains input, bypass input and battery terminals still carry lethal voltages after pressing
the EPO switch. Do not remove cover from these parts.
Only competent personnel must remove protection panel held in place with screws.

2.4.4 - Emergency Power Off (E.P .O.) push button connection

Refer to
Card.

2.4.5 - Connection to Personal Computer

The UPS contains a standard DB9 Female connector located on the rear of the UPS.
Several signals are provided on this port and assigned as follow:
2 - 14
Figure 2-6 and Figure Figure 2-7
1. Obtain a suitable length (not more than 100 m.) two wire cable (0.6 sq. mm cross section)
2. Connect one end of the cable to the N.C. pins of a fire preventing button.
3. Connect the other end to the standard Relay Card connector M2.
PIN
1
2
3
4
5
6
7
8
9
Service Manual
to make a push button connection to the standard Relay
Description
Low Battery (N.O.)
T.B.D.
T.B.D.
N.C.
Common
N.C.
Low Battery (N.O.)
Mains Fail (N.O.)
Mains Fail (N.O.)
3x3 UPS Installation
Issue 2 - November 2001