GE Industrial Solutions On-line VH Series UPS - Manual (Page 19)

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GE_UPS_OPM_VHU_0K7_2K0_XUL_V040.docx Operating Manual VH Series 700 - 1000 -1500 – 2000 VA UL
 if the bypass function has been disabled (see 4.5), or
 if the UPS operates on battery (see 4.4.4).
To avoid these problems, be absolutely certain that the power demands of the protected equipment are within the limits of
the UPS.
4.4.8 Battery bad
Either the batteries are almost chemically worn out or the battery wiring, including the battery fuse, is faulty. If the batteries
are aged, they must be replaced as soon as possible to ensure full protection for your equipment. Perhaps the 'battery bad'
alarm occurs after a test which you started immediately after installation or after a power failure. In this case the alarm may
be incorrect as the batteries have been (partly) discharged during transport or storage / during the power failure. Allow the
UPS to recharge the batteries. See also 4.6.
4.4.9 General alarm
‘General alarm’ comprises a group of alarms; the buzzer behaviour indicates which alarm is active:
1 / 2 secs: General fault
Overload (see 4.4.7)
Overtemperature
Output out of tolerance 1 / 5 secs: Charger failure
Bypass out of limits (see 4.4.6)
Battery bad (see 4.4.8)
4.4.10 Shutdown pending
The UPS monitoring software allows you to switch the UPS into standby mode after a programmable delay time. During
countdown the ‘operation’ LED will blink 2x per second and the buzzer will beep every 5 seconds.
4.4.11 Startup pending
The UPS monitoring software allows you to start up UPS after a programmable delay time. During this delay time the
‘operation’ LED will blink 2x per second.
4.4.12 P-N (Phase-Neutral) reversal
If the P-N reversal indication is enabled, the UPS will indicate whether the voltage between Neutral and Earth (Ground) at the
UPS input exceeds a certain voltage (i.e. Phase and Neutral at the UPS input are reversed in an earthed/grounded Neutral
system). In this potentially unsafe situation both LEDs ‘operation’ and ‘alarm’ will blink fast and the buzzer will sound.
Reversing the mains plug will prevent this unsafe situation and will cancel the alarm. In case of non-earthed/grounded
Neutral system this indication should be disabled.
The default setting of the P-N reversal indication is: enabled.
Changing of the setting is described in section 4.5.
4.4.13 REPO (Remote External Power Off)
REPO can be used for remotely shut down the UPS by opening the cable link provided in the connector at the rear side of
the UPS. The REPO functionality can be disabled by Configuration tool. (Default: Enabled)
For remote connection, remove the cable link in the connector and connect to a cable with a switch. The switch should
be of Normally Closed type for normal operation. When the contact is opened, UPS will shut down.
Entire Front panel LEDS of the UPS will blink continuously and buzzer beeps when the UPS shut down using REPO
function.
To restart the UPS, the loop should be closed by either closing the remote Switch or placing the cable link in the REPO
connector and the “ON” “button in the UPS front panel is pressed.
WARNING!
The REPO Contact is a Safety Extra Low Voltage Circuit. Connect it only to a SELV Circuit.
NOTE
Use standard Low Voltage Cable in accordance with National and local regulations.