Torque Limitation - KEB COMBIVERT F5 MULTI Applications Manual

Motor Data and Controller
6.6.4

Torque Limitation

Torque limit forward motoric
Torque limit reverse motoric
Torque limit forward generatoric
Torque limit reverse generatoric
Adjustable limits
Torque reference source (cS.15)
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All Rights reserved
The parameters cS.20 and cS.22 define the torque limits.The value ÑoFFì deaktivates
the particular limit. In this case the motoric value is valid. If this value is switched
off too, the preadjusted torque limit in cS.20 is valid for all operating ranges. If
cS.20 is also switched off the value of cS.19 works as limit (especially for CP-
mode).
Fig. 6.6.4
(cS.20)
(cS.21)
cS.21
(cS.22)
(cS.23)
cS.22
The torque limits can be modified for special applications in the operation. For that
a source is defined with the parameter cS.15. The defined limits cS.20/cS.22 are
changed with the adjusted torque setpoint source cS.15.
Value Source
0 REF 0...100 %
1 AUX 0...100 %
2 Direct setting with cS.19/20/22 (default)
3 Adjustment in percent with cS.18 0...100 %
4 Motorpoti 0...100 %
5 External PID output 0...100 %
The torque limits ru.47 / 48 are calculated as follows:
ru.47 = M = cS.20 x
mot
ru.48 = M = cS.22 x
gen
The maximum torque is limited by 2 further factors:
ï If the KEB COMBIVERT is dimensioned too small to operate the current
that is necessary for the required torque, then the maximum torque is limited
automatically.
ï From the motor parameters a speed-dependent torque characteristic is
calculated.
Name: Basis
KEB COMBIVERT F5-M / S
Functional Desription
Torque limits
Torque
eingestellter Prozentwert
100%
eingestellter Prozentwert
100%
cS.20
Controller
manipulated
variable
cS.23
Date Chapter Section
6 6
12.05.04
6
Page
7