Lenze SS208AC - Manual (Page 29)

SimpleServo 100/200 User Manual Rev 3.4
PROBLEM
Diagnostic LED is steady GREEN (enabled status) but motor does not run.
SUGGESTED SOLUTION
• If in torque or velocity mode:
• Reference voltage input signal is not applied.
• Reference signal is not connected to the SimpleServo input properly; connections are open.
• In MotionView program check <Parameters> <Reference> set to <External>
• For Velocity mode only: In Motion View check <Parameters> <Compensation> <Velocity loop
filter> P-gain must be set to value more then 100 in order to run. Without load, motor will run with
P-gain set as low as 20, but may not run under load. If P-gain is set to 0 motor will not run at all.
• In step and direction mode:
• Step and Direction inputs are not wired correctly.
• In MotionView program check <Parameters> <Step input type> is set for <S/D> if you use a step-
and-direction indexer output, and <Master Encoder> if you use quadrature type output from a
master motor encoder or indexer.
• Position loop P-gain set to 0. Set P-gain to 200 and D-gain to 200 initially to get motion. Tune
them afterwards for best performance.
PROBLEM
In velocity mode, the motor runs away.
POSSIBLE CAUSE
• Hall sensors or encoder mis-wired.
• SimpleServo not programmed for the connected motor.
SUGGESTED SOLUTION
• Check Hall sensor and encoder connections.
• Check that the proper motor is selected.
For more troubleshooting tips check our website: http://www.SimpleServo.com
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