97
EN
452 Communication fault be-
tween filter and power
stage set
1. Communication problem
caused by temporary environ-
mental interference (grid,
EMC, etc.)
1. Automatic correction
2. Check ribbon cable between
filter PC board and power
stage set
2. Replace ribbon cable
3. Faulty filter PC board 3. Replace filter PC board
4. Faulty power stage set 4. Replace AC PC board
453 Redundant grid monitoring
has detected an incorrect
grid voltage
1. Measurement fault 1. Software update
2. Grid problem 2. Automatic correction
3. Faulty AC guard on filter PC
board
3. Replace filter PC board
4. Faulty AC guard on power
stage set
4. Replace AC PC board
454 Redundant grid monitoring
has detected an incorrect
grid frequency
1. Measurement fault 1. Software update
2. Grid problem 2. Automatic correction
3. Faulty AC guard on filter PC
board
3. Replace filter PC board
4. Faulty AC guard on power
stage set
4. Replace AC PC board
456 Fault detected in the island-
ing monitoring
1. Occurs once 1. Restart the inverter
2. Software problem 2. Software update
3. Measurement fault on filter
PC board
2. Replace filter PC board
4. Faulty measuring circuit for
anti-islanding
3. Replace AC PC board
457 Grid relay does not trigger 1. Occurs once 1. Restart the inverter
2. Grid test time too short 2. Change settings
3. Grid relay jammed 3. Replace AC PC board
458 RCMU self-test failed 1. RCMU measurement fault 1. Replace filter PC board
459 Insulation measurement
fault
1. Occurs once 1. Restart the inverter
2. Insulation measurement
fault
2. Replace DC PC board; re-
place AC PC board if neces-
sary
460 Reference voltage outside
the permissible limit
1. Occurs once 1. Restart the inverter
2. Faulty power stage set
measuring circuit
2. Replace AC PC board
461 Faulty data memory 1. Faulty power stage set 1. Replace DC PC board; re-
place AC PC board if neces-
sary
462 Fault detected in monitoring
system for DC braking
1. Occurs once 1. Restart the inverter
2. Faulty monitoring system for
DC braking
2. Replace inverter
463 AC pin reserved 1. AC connection between
power stage set and filter PC
board is fitted in the wrong di-
rection (L1 and L2 swapped)
1. Check wiring
Code Description Behaviour Remedy
To Next Page
Loading...
