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7.2
Fault messages
The type of fault is indicated via the status of terminals A1 and A2, if the external voltage
supply is not interrupted during faulty operation:
A1 = LOW
A2 = LOW
Note!
ƒ
ƒ
Terminal X2/ Operating behaviour
p
g
A1
A2
HIGH HIGH Supply and feedback
operation possible; no fault
is active
LOW HIGH Supply operation is still
pp y p
possible, feedback
ibl f db k
operation is inhibited
Feedback operation is
inhibited
LOW LOW
Operation not possible
Supply operation is still
possible, feedback
operation is inhibited
p
EDBMB9340 DE/EN/FR 9.0
Troubleshooting and fault elimination
collective error message (all faults)
faults of the supply system.
Response time of the fault messages in case of mains errors: < 20 ms.
Reaction time of reconnection (switch on): < 0.5s.
Possible cause
Overtemperature
Ambient temperature
too high
Overload of the
regenerative power
supply module
Heatsink dirty
Overvoltage in the DC bus,
regenerative energy
exceeds the regenerative
power
Mains voltage
< 320 V or > 528 V
All-pole mains failure
Mains error or connection
error detected by mains
synchronisation
Mains frequency
< 48 Hz or > 62 Hz
Single pole phase failure L1,
L2 or L3 by defective fuse
Fault messages
Remedy
y
Fault reset
Automatically after cool
d
down of the regenerative
Reduce ambient
power supply module
temperature
Check dimensioning, if
necessary, use additional
braking units
Clean heatsink
Check the dimensioning of
Automatically, if the
the drive system
DC-bus voltage is within
the permissible range
Check mains voltage;
Automatically, if the mains
voltage is within the
For isolated operation with
permissible range
generator: Check
dimensioning of the
generator
Switch on the mains
Check connection for
Automatically, with
in-phase wiring
in-phase wiring
Check mains frequency;
Automatically, if the mains
voltage is within the
For isolated operation with
permissible range
generator: Check
dimensioning of the
generator
Replace fuse when no
After replacing the fuse and
voltage is applied
reconnection
7
y
f h
i
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