Turn On Procedure; Turn Off Procedure - QEI ePAQ-9150 User Manual

Substation terminal node
Table of Contents

Advertisement

ePAQ-9150
____________________________________________________________________________

1.7.2 Turn ON Procedure

Initial turn-on procedure for the ePAQ-9150 Remote Terminal Unit Subsystem
consists of setting the POWER switch located on the ePAQ-9100 module Front
Panel, to the ON position. Note that during the power on stabilization period
(approximately ten to fifteen seconds), all control point sections and commands are
negated. To avoid premature operating difficulties, allow at least twenty (20)
seconds to elapse before commencing operation.

1.7.3 Turn OFF Procedure

REMOVAL OF POWER CAUSES THE DATA IN RAM ON THE CENTRAL PROCESSING PANEL TO
BE LOST. HOWEVER, WHEN POWER IS RESTORED, THE SUBSYSTEM WILL RESUME ALL
MONITORING AND CONTROL FUNCTIONS. DATA AND PROGRAM IN FLASH MEMORY REMAINS
INTACT THROUGHOUT POWER LOSS AND RESTORATION.
To remove power from the ePAQ-9150 Subsystem, set the POWER switch on the
ePAQ-9100 module Front Panel to the OFF position. When the Remote Terminal
Unit Subsystem is equipped with battery-backup, the DC POWER (battery) switch,
must also be placed in the OFF position. This procedure should be performed only
for maintenance purposes.
On Remote Terminal Unit Subsystems equipped with battery backup operation, the ePAQ-9150 will
operate for up to 6 hours, depending on the load imposed on the battery and the ambient temperature.
Normal operation of the ePAQ-9150 will occur as soon as the ac power is restored.
Copyright © 2016 QEI
CAUTION
NOTE
Remote Terminal Unit
Section 1
21

Advertisement

Table of Contents
loading

Table of Contents