Lenze E94AxPExxxx - Manual (Page 180)

6 Motor interface
6.3 Adjusting motor and controller to each other
180
Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
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6.3.3.1 Adjustment of the pole position identification
The two procedures for Pole position identification (PPI) described in the previous sections can be
adjusted to the respective machine and the prevailing moments of inertia by means of the
parameters described below.
Parameters for the pole position identification 360°
• The current amplitude can be adjusted proportionally in C00641 .
• For large machines and high mass inertia values or for linear direct drives, the current
amplitude usually has to be increased.
• The Lenze setting "100 %" corresponds to the smaller of the two following values:

Note!
The two procedures for the pole position identification should give the same results. But,
due to e.g. friction, bearing forces and a trapezoidal field pattern, the results may differ.
A proportional increase of the current amplitude in C00641 or C00646 can counteract
this deviation.
Parameter Info Lenze setting
Value Unit
C00641 PLI 360° current amplitude 100 %
C00642 PLI 360° ramp time 100 %
C00643 PLI 360° traversing direction Clockwise rotating field
C00644 PolePosId 360° fault tol. 0 °
or

Stop!
If there is no temperature monitoring in the motor and/or the I 2 xt motor monitoring and
the maximum current monitoring are not parameterised correctly, the motor may be
permanently damaged when the current amplitude is set too high (e.g. to the maximum
value)!
 Motor monitoring (I 2 xt) ( 263)
 Maximum current monitoring ( 276)

Note!
If the current amplitude is set to 100 % in C00641 >, the device utilisation (Ixt)
monitoring and/or one of the motor monitoring functions may respond and cause the
abort of the pole position identification.
2 Rated device current ⋅
2 Rated motor current ⋅