Output current limitation
This function is used to avoid the tripping caused by over current when the load
has large inertia or sudden changes.
Code Name Setting range Default Min. Attri.
C2.40 Current limitation mode 0...2 2 – Stop
● 0: Always inactive
Current limitation control function is inactive.
● 1: Inactive at constant speed
Current limitation control is active during acceleration and deceleration, but
inactive at constant speed.
● 2: Active at constant speed
Current limitation control is active during acceleration, deceleration and at
constant speed.
The current regulator is a PI regulator with configurable P factor and I factor.
● The higher value of C2.43 'Current limitation proportional gain', the faster the
current suppression.
● The higher value of C2.44 'Integral time', the more accurate of current sup-
pression.
Code Name Setting range Default Min. Attri.
C2.42 Current limitation level 20...250 % 150 1 Stop
C2.43 Current limitation proportional gain 0.000...10.000 DOM 0.001 Stop
C2.44 Current limitation integral time 0.000...1.000 DOM 0.001 Stop
The default settings of C2.43 and C2.44 can meet requirements in most applica-
tions. If slight adjustment is necessary, increase [C2.43] first with no oscillation,
and then decrease [C2.44] to achieve fast response without overshooting.
[C0.27] 'Stall overcurrent prevention level' should be smaller than [C2.42] 'Auto-
matic current limitation level', otherwise a warning code 'PrSE' will be displayed
on the operating panel and parameter setting can not be saved.
Bosch Rexroth AG
Functions and Parameters
EFC x610 Series
224/389
DOK-RCON03-EFC-X610***-IT05-EN-P
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