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UMA710-2-xx-ISO-xx, Manual.docx
Issued: 11.Jan.2016
31
7. Troubleshooting
7.1. Fault and alarm messages ATICS®
If a fault occurs, the message of the ATICS® transfer switching device will enable you to narrow down the
possible causes. Some messages may point to several causes.
The following possible faults are indicated by messages on the ATICS® display:
Plain text fault messages
Fault messages with error code or service code
7.1.1. Alarm messages:
Fault/message
Description
Action
Failure Line xx
(xx stands for: 1, 2,
AV, SV, UPS, BSV),
Under voltage or
overvoltage
Voltage is no longer available on
line 1 or line 2
(Channel 1 = Line 1,
Channel 2 = Line 2)
- Measure voltage on line xx
- Check cause
- Eliminate fault on the system
- Check the setting for voltage
and hysteresis
Failure Line 2
Generator delivers no voltage
within the set time
- Measure voltage on line xx
- Check cause
- Eliminate fault on the system
- Check the setting for voltage
and hysteresis
Insulation fault
IT-System insulation/earth fault
- Look for insulation fault
- Eliminate fault on the system
Overload
Current consumption too high
- Check setting for transformer
load current
- Switch off any loads which are
not urgently needed
Over temperature
Temperature on the IT system
transformer is too high
Switch off any loads which are
not urgently needed
CT connection
Measuring current transformer
STW2 (T4), isolating transformer
load, channel 10
- Check connecting wire of
measuring current transformer
CT short-circuit
Measuring current transformer
STW2 (T4), isolating transformer
load, channel 10
- Check connecting wire of
measuring current transformer
Mains power
connection
Connection to the IT system
interrupted or voltage in the
system being monitored below
150 V
- Check connection of ports
L1/IT, L2/IT to the IT system
- Check voltage in the IT system
Earth connection
Connection to PE interrupted
Check that the E and KE are
connected to the protective earth
conductor by two separate lines
on.
Device error +
Error code
For details about actions to be taken refer to table section "Error
code/service code". The message is on channel 6 of the BMS bus..
Short-circuit
distribution board
Short-circuit detected
- Eliminate short-circuit
Failure distribution board
No voltage on line 3, contact of
the changeover switch defective
Replace the ATICS®
Overcurrent I3
Overcurrent detected by
measuring current transformer
STW3 (T3)
- Eliminate the cause of
overcurrent
- Eliminate any damage
CT connection
Measuring current transformer
STW3 (T3), channel 7
- Check connecting wire of
measuring current transformer
