Code Name Level
C1.12 Motor rated slip frequency
Physical parameter level
C1.13 Motor inertia mantissa
C1.14 Motor inertia exponent
C1.15 Torque constant
C1.20 Motor no-load current
C1.21 Stator resistance
C1.22 Rotor resistance
C1.23 Leakage inductance
C1.24 Mutual inductance
C2.43 Current limitation proportional gain
Control parameter level
C2.44 Current limitation integral time
C3.00 Speed loop proportional gain
C3.01 Speed loop integral time
C3.05 Current loop proportional gain
C3.06 Current loop integral time
Tab. 12-18: The application level of motor parameters
The user shall follow the order as specified below to set or modify the parame-
ters, Top level -> Nameplate level -> Physical parameter level -> Control parame-
ter level.
Taking the example of SVC control for asynchronous motor, the user shall first
set top level parameters, C0.00 and C0.01, and next set the nameplate level pa-
rameters, C1.05...C1.09, and in the end execute parameter auto-tuning to ac-
quire the parameters of physical parameter level and control parameter level.
If the user does not conform to the order as specified above, this would cause
undesired change to the parameter setting.
For example, if by applying the parameter auto-tuning function, the user goes
first to set the parameters of physical parameter level and control parameter lev-
el, and next execute the modify to the parameters of top level or nameplate lev-
el. After all, this would activate the internal computation function of motor pa-
rameters that end up with the change to the parameters of physical parameter
level and control parameter level, namely the parameters defined after C1.12.
Because of the change, the user would have to re-set the two parameter groups
of bottom levels.
Check and make sure the following points before auto-tuning:
● The motor is in standstill and not at high temperature.
● The power rating of the frequency converter is close to that of the motor.
● Set C1.05...C1.10 based on motor nameplate data. If the power factor data is
unavailable on the nameplate, keep the default setting of C1.10.
Bosch Rexroth AG
Functions and Parameters
EFC x610 Series
214/389
DOK-RCON03-EFC-X610***-IT05-EN-P
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