Fault Messages - Lenze Emb9341 Betriebsanleitung

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
A1 A2
HIGH HIGH Supply and feedback
operation possible; no fault
is active
LOW HIGH Supply operation is still
possible, feedback
operation is inhibited
Feedback operation is
inhibited
LOW LOW Operation not possible
Supply operation is still
possible, feedback
operation is inhibited
EDBMB9340 DE/EN/FR 12.0
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
l
Ambient temperature
too high
l
Overload of the
regenerative power
supply module
l
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
l
Fault messages
Remedy Fault reset
Automatically after cool
down of the regenerative
l
Reduce ambient
power supply module
temperature
l
Check dimensioning, if
necessary, use
additional braking units
l
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
voltage is applied and reconnection
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