PowerTec 2000C Instruction Manual page 68

© copyright 1995 by
Powertec Industrial Motors
beyond 50% and this condition exists. If the reference is only set at 25% or so
and the current limit is set at 50% setting and the motor is free to turn, there is
no good reason for the current limit LED to be on. Call the plant for assis-
tance before proceeding!! 803-328-1888.
10. If the motor turns normally, then increase the reference speed and
verify proper operation by adjusting different speeds. Current limit can now
be increased to 100% rated (slot horizontal). Do not increase further unless
the load later shows that peak loads require short term current over 100%. No
harm should occur if it is set above 100% but the drive is not rated for
continuous output over 100%.
11. Gain and stability should be set with the drive running at low
speeds where their effects can be readily seen. The best setting is usually
75% for both pots (slow horizontal). The drive does not care where these pots
are set but the speed may not be stable unless these are set to the best
position. ACCEL and DECEL pots should be set to whatever rates are
appropriate to the application.
12. Reinstall the ramp stop jumper if you wish to have a controlled
stop to zero speed at the set DECEL rate. If all stops are coast to rest stops
then the ramp stop jumper is not necessary. If a controlled DECEL stop is
needed then the jumper should be in place and a ramp stop pushbutton and an
E-stop pushbutton should be wired.
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