KEB COMBIVERT F5-A, Applications Manual, Page: 210 / 552

Page 7.6 - 10 COMBIVERT F5-A, -E, -H © KEB, 2012-10
Motor data and controller adjustments of the synchronous motor
7.6.3.3 Identification of the motor data
The required equivalent circuit data for the motor model can be determined by the KEB COMBIVERT itselfs.
First, the motor data must be entered according to chapter 7.6.1, and the motor adaption must be executed.
There are two possibilities to start the identification:
- Writing of parameter dr.48 in inverter state "stop (LS)", measurement is starting automati-
cally.
- Writing of parameter dr.48 in inverter state „no control release (noP)“ with subsequent con-
trol release.
Parameter dr.48 cannot be written in other operating conditions.
The measured values can be invalid in case of strong overdimensioning of the inverter. The rated current of the
motor should be at least 1/3 of the maximum short time current limit. The short time current limit is determined
by the overload characteristics and can be taken from the power circuit manual or parameter In.18 (hardware
current).
The direction of rotation during identification of the EMC is always "clockwise rotation"!
Value 82 "calculate drive data / Cdd" is output during measurement in inverter state ru.00. After successful
measurement ru.00 = 127 "drive data calculated/Cddr" is displayed.
If the measurement is interrupted with an error, in ru.00 = 60 "error! drive data / E.Cdd) is displayed.No correct
operation can be ensured in case of an abort.
The actual state of the identification is displayed in parameter dr.62 "state motor ident."
The control release
must be switched off in order to leave the identification mode.
Parameter dr.48 must be written again in order to start a new measurement.
For safety reasons the output signal "brake release" is not set during measurement, since the motor cannot
generate a defined torque in this time.
Since the identification in the automatic mode is very reliable and for the user the most pleasant method it is
recommended to use generally this method according to chapter 7.6.3.3.1.