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janasamara

powerflex 525 reset encoder

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Hi, people I have a problem with the reset encoder routine.
I can not reset encoder positions(parameters 376 and 377).
I followed the manual and tried to do the automatic startup routine but it does not work.
First through a plc input I try to activate drive input 7. At input 8 of the inverter I have physically attached a wire to the sensor. I also have parameter t67 set to "35 Find Home" and parameter t68 set to "34 Home limit".
I do not know what I might be doing wrong.
Can someone help me ?
thanks

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If you want to reset, zero, the PF525 encoder position, this process will be the same as a Manual Homing procedure.  Appendix E - Pg. 210.  You will need digital term block inputs to be "37" (position redefine), then issue a RUN command to the drive.  An alternative is to toggle bit A560.  

Take note of the IMPORTANT...Position Redefine input or bit must be returned to inactive before starting position routine.  (1) Toggle Position Redefine command, (2) Latch PF525 RUN command.

Before implementing the Manual Home procedure, make sure any previous VFD inputs/commands are in their proper state.

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