Chapter 10 - Display Panel Interpretation Liebert Hipulse E User Manual
Single or '1+N' UPS System
Page 10-4 (07/04)
Alarm
code
DISPLAY ALARM
MESSAGES
INTERPRETATION
20
04
23
22
25
55
58
RECT.: OFF
RECT.: SWITCH OPEN
RECT.: CURRENT LIMIT
RECT.: BLOCK
RECT.: FUSE FAIL
DC BUS: SLOW OVERVOL
DC BUS: FAST OVERVOL
The RECT.: OFF alarm is active whenever the rectifier (battery charger) is not
producing its correct output voltage; this can be caused by, an operator selection to
off, an input supply failure, an open rectifier a.c. input power switch or an internal
fault which may be accompanied by one of the fault conditions.
Most of the rectifier fault messages are self explanatory however, the DC BUS: FAST
OVERVOLTAGE and the DC BUS: SLOW OVERVOL message informs the
operator the d.c. bus bar voltage is too high.
10
11
12
13
BYP: ABSENT
BYP: OVERVOLTAGE
BYP: UNDERVOLTAGE
BYP: FREQUENCY ERROR
INPUT FAILURE: input a.c. supply failed or out of specified acceptable range. Do
not switch OFF the inverter while this indication is active or the load will lose its
power.
15 BYP: SCR FAILURE One or more of the static switch SCR's has developed a fault. The bypass would not
support the load in the event of a UPS failure, immediate action is required. Seek
qualified assistance.
14 BYP: PHASE ROT.ERROR This message informs the operator that the input power lines have been cross-
connected and the phases sequence is incorrect.
06 MANUAL BYPASS CLOSED This is a status warning that the load is being powered through the maintenance
bypass line and is unprotected from mains supply aberrations.
35 INV.: UNSYNCHRONIZED This warns that the inverter is not synchronized with the bypass supply, which is
normally due to a problem with the bypass supply being outside an acceptable
frequency window. Do not switch OFF the inverter when this alarm is active or the
load will experience a 200 msec power break.
52
88
BATTERY: ON LOAD
AUTONOMY XXXX min
This is a status warning that the battery is discharging. It normally accompanies a
[BYP: ABSENT] or [RECT: OFF] message.
The micro monitors the battery percentage capacity while on charge and the battery
time remaining while on discharge. It calculates the time remaining as function of the
discharge current against the programmed ampere hour capacity of the battery. It will
update the time remaining as the load is changed
50 BATTERY: UNDER TEST This message informs the operator that the system is carrying out a periodic battery
test.
54 BOOST TIME EXPIRED This message is only applicable to systems which include the boost charge option,
boost time charge elapsed set value, battery should be controlled by service personnel.
18 LOAD ON BYPASS This is a status warning that the load is being powered through the static bypass line
and is unprotected from mains supply aberrations.
This action is either selected by the operator or a fault condition, check for other fault
messages.
20
21
RECT.: OFF
RECT.: OFF VIA DISPLAY
This is a status message confirming that the rectifier has been selected off by the
operator from either the front panel display or an external PC or by a switch on UPS
µP PCB.
16
17
BYP.: OFF
BYP.: OFF VIA DISPLAY
This is a status message confirming that the bypass has been selected off by the
operator from either the front panel display or an external PC.
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