User Manual Liebert Hipulse E Chapter 10 - Display Panel Interpretation
Single or '1+N' UPS System
(07/04) Page 10-5
Alarm
code
DISPLAY ALARM
MESSAGES
INTERPRETATION
30
31
INV.: OFF
INV.: OFF VIA DISPLAY
This is a status message confirming that the inverter has been selected off by the
operator from either the front panel display or an external PC.
60 BYP:XFER COUNT BLOCK This message informs the operator that the load has been transferred to the bypass
more than eight times in one minute. After eight transfers the load will remain on
bypass. This message could be initiated by a load causing the UPS to overload, it
requires investigation.
59 BATTERY: GROUND FAULT This message informs the operator that the battery is not longer isolated from ground
and there is a danger of electrocution (included option).
64 BACKFEED FAULT This message informs the operator that failure of the Bypass static devices has resulted
in voltage being fed back to the bypass supply input.
If the feature is used then check the circuit up to the remote switch. Customer
connections; auxiliary terminal block X4; pins 9 and 10; normally open.
08 FAN FAILURE ALARM This message tells the operator that there is a failure in the outgoing air ventilation system
(included option).
When this message appears, the red alarm signal (ref. 13) flashes and an LED comes on
the ‘
Fan Failure Alarm Indicator’ inside the UPS. An acoustic alarm will sound. It is
essential to solve the problem immediately as it could trigger the over-temperature
protection, resulting in transfer of the load to the bypass mains.
Repairs must be performed exclusively by specially trained personnel. Please contact an
authorised technical assistance service if you have problems.
In addition to the above messages there are a number of software alarms (i.e. BAD EEPROM , INTERNAL
BATTERY LOW etc.) that will require attention from a qualified service engineer.
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