Lenze i700 - Manual (Page 101)

Lenze · i700 servo inverter · Reference manual · DMS 1.5 EN · 03/2014 · TD05
101
5 Motor control & motor settings
5.10 Synchronous motor (SM): Pole position identification
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0x2C62 | 0x3462 - Pole position identification PPI (min. movement)
Sub. Name Lenze setting Data type
 1 PPI (min. movement): Current amplitude 25 % UNSIGNED_16
 2 PPI (min. movement): Ramp time - current 10 s UNSIGNED_16
 3 PPI (min. movement): Gain 0 % UNSIGNED_16
 4 PPI (min. movement): Reset time 62.5 ms UNSIGNED_16
 5 PPI (min. movement): Max. move permitted 20 ° UNSIGNED_8
 6 PPI (min. movement): Absolute current
amplitude
UNSIGNED_32
Subindex 1: PPI (min. movement): Current amplitude
Adjustment of the current amplitude in percent
• For large machines and high mass inertia values or for linear direct drives, the current amplitude usually has to
be increased.
• A Lenze setting of "100 %" corresponds to 35 % of the rated motor current ( 0x6075 or 0x6875 for axis B).
Note!
If the current amplitude is set to > 400 %, the device utilisation (Ixt) monitoring and/or one of the motor monitoring
functions may respond and cause the abort of the pole position identification.
Setting range
(min. value | unit | max. value) Lenze setting
1 % 1000 25 %
 Write access  CINH  OSC  P  RX  TX UNSIGNED_16
Subindex 2: PPI (min. movement): Ramp time - current
Adjustment of the rate of rise of the current in percent
Setting range
(min. value | unit | max. value) Lenze setting
1 s 600 10 s
 Write access  CINH  OSC  P  RX  TX UNSIGNED_16
Subindex 3: PPI (min. movement): Gain
Adjustment of the proportional gain of the PI controller
• With the Lenze setting "0", the PI controller works as an I-controller.
Setting range (min. value | unit | max. value) Lenze setting
0 % 1000 0 %
 Write access  CINH  OSC  P  RX  TX UNSIGNED_16
Subindex 4: PPI (min. movement): Reset time
Adjustment of the PI controller reset time
• For this, observe the following setting details:
• In order to be able to compensate a positional variation faster, first the reset time should be reduced. If this
does not result in the desired behaviour, the proportional gain can be increased.
• Ensure that the position control does not get unstable. We therefore recommend to use an I controller.
Setting range (min. value | unit | max. value) Lenze setting
0.1 ms 6000.0 62.5 ms
 Write access  CINH  OSC  P  RX  TX Scaling: 1/10 UNSIGNED_16