KEB COMBIVERT F5 BASIC Applications Manual page 181

Motor Data Adjustment
Standard values, if no suitable
measuring equipment is available!
Automatic determination
of the motor stator
resistance
Load motor dependent
parameters (Fr.10)
© KEB Antriebstechnik, 2002
All rights reserved
230V / 400V-motors in
∆ ∆ ∆ ∆ ∆ -connectionY-connection
R/Ω Ω Ω Ω Ω (dr.6)
P/kW
0.37 14.0
0.55 12.0
0.75 9.0
1.1 5.5
1.5 3.5
2.2 2.5
3.0 1.5
4.0 1.1
The KEB COMBIVERT supports an automatic determination of the motor stator
resistance. For that proceed as follows:
• input motor data of the identification plate into the parameter set which is to programm.
• select and activate the parameter set which is to programm.
• Execute the measurement dependent on the operational case in cold status
respectively let the motor warm up to operating temperature.
• Switch control release
• Preset no direction of rotation (inverter must be in status „LS")
• Write maximal value „50.000" to parameter dr.6
During the determination the status display (ru.0) indicates „Cdd". Upon successful
determination the motor stator resistance is entered in dr.6. If an error occurs during
the determination then the error signal „E.Cdd" is output. The detection can be carried
out for each parameter set separately. Thus a parameter set can be programmed for
example as „Warm-up set" for particularly critical applications.
After input of the name plate data of a new motor or after the automatic measurement
of the stator resistance, an automatic optimization of autoboost and slip compensation
can be executed with Fr.10.
The optimization is started by writing value „3" on Fr.10. At that the inverter must
be in the status „noP" (no control release. Provided that only one motor is used, the
measurement can occur with direct set programming for all parameters at once.
Following parameters are changed by the activation of Fr.10:
uF.0 Rated frequency = Rated motor frequency (dr.5)
uf.1 Boost = calculated value
uF.2 Additional Frequency = -0,0125 Hz (parabolic characteristic)
uF.3 Additional Voltage = 0
uF.9 Voltage stabilization = Rated motor voltage (dr.2)
uF.16 Autoboost configuration = 1 (with sign)
uF.17 Autoboost gain = 1,2
cS.0 Speed control configuration = 34 (speed controller + slip limitation)
cS.1 Actual Source = 2 (calculated)
cS.4 speed controller frequency limitation= 4 • rated motor slip
The adaption should cover approx. 90 % of the applications. For an application-specific
adjustment a manual fine adjustment can now still be carried out for an individual
case.
Name: Basis
KEB COMBIVERT F5-G / B
Funtional Description
230V / 400V-motors in Y-connection
400V / 690V-motors in ∆ ∆ ∆ ∆ ∆ -connection
R/Ω Ω Ω Ω Ω (dr.6)
P/kW
42.0 5.5
36.0 7.5
27.0 11.0
16.5 15.0
10.5 18.5
7.5 22.0
4.5 30.0
3.3 45.0
55.0
75.0
Date
23.01.02
R/Ω Ω Ω Ω Ω (dr.6)
2.2
1.5
0.9
0.6
0.45
0.36
0.24
0.15
0.12
0.09
Chapter Section Page
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