8400 StateLine C | Reference manual
Motor control (MCTRL)
Sensorless control for synchronous motors (SLPSM)
192
L
Firmware
≤
11.00 - DMS 8.0 EN - 10/2011
Optimising the pole position identification
How to optimise the pole position identification without motion:
1. For optimisation, enable the controller for various rotor displacement angles.
2. After every controller enable, check the optimisation degree displayed in
C02870
.
The pole position identification is set optimally if an optimisation degree in the
range 70 ... 130 % is displayed in
C02870
after every controller enable.
3. When the optimisation degree is > 130 %:
Reduce the setting in
C02872
step by step an execute controller enable for various
rotor displacement angles until an optimisation degree < 130 % is displayed.
4. When the optimisation degree is < 70 %:
Increase setting in
C02872
step by step and execute controller enable for various
rotor displacement angles until an optimisation degree > 70 % is displayed.
5. Optional:
C02875
serves to increase or reduce the identified electrical rotor
displacement angle. This can prevent e.g. a reversing of the motor due to the
accuracy of identification if applications require it.
Stop!
In case of a too high setting in
C02872
, an impermissible motor current may
occur during pole position identification. In this case, the "Fault" error response
occurs and the "ID5: Pole position identification error" error message entered in
the logbook.
In case of aconsiderably too high setting in
C02872
:
• The following current monitoring functions can be triggered:
– OC7: Motor overcurrent
– OC11: Active clamp operation
– OC1: Power section - short circuit
• The optimisation degree "0 %" is displayed in
C02870
.
• The time "0 ms" is displayed in
C02871
.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
