Bosch Rexroth EFC 3600 Operating Instructions Manual page 122

Bosch Rexroth AG
Parameter Settings
When the input phase loss protection is active and the input phase loss error occurs,
the panel displays "IPH.L"; When the output phase loss protection is active and the out‐
put phase loss error occurs, the panel displays "OPH.L".
● An input phase loss can also be triggered by line voltage imbalance or
main capacitors deterioration. The protection has no capability to detect
the input phase loss in following circumstances:
– No "RUN" command is present;
– The output current is lower than ca. 30% of frequency converter rat‐
ed current;
– During motor deceleration.
● There will be a dead zone to detect output phase loss in the following
cases:
– the output frequency is lower than 1 Hz.
– during DC braking.
– during speed detection restarting.
– during motor parameters auto-tuning.
– wrong settings of [S2.04] "motor rated current".
E4.15 Number of fault reset attempts
Setting range 0 ~ 3
Minimum unit 1
Factory default 0
E4.16 Interval between reset attempts
Setting range 2 ~ 60s
Minimum unit 1s
Factory default 10s
Automatic fault reset function is used to ensure continuous running without human in‐
tervention in the case of occasional faults, such as overcurrent and overvoltage at start
and in the run mode. This function can be activated by setting [E4.15] to a non-zero
value.
When a fault occurs, the frequency converter stops the output and the related error
code is displayed at the same time. The system remains in idle mode for delay time
[E4.16]. Then the error will automatically be reset and a run command will be gener‐
ated to restart the frequency converter. This sequence will be performed [E4.15] times
in a row. If the error still exists, the frequency converter remains in idle mode and no
longer performs automatic restart attempts. In this case, a manual error reset is re‐
quired to resume the operation.
Automatic fault reset is valid for the following faults: OC-1, OC-2, OC-3, OE-1, OE-2,
OE-3, OE-4, OL-1, OL-2, UE-1, E-St, OH and UH.
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DOK-RCON03-EFC-3600***-IT01-EN-P
Rexroth Frequency Converter EFC 3600