42
Troubleshooting
Line fuse does not blow,
but the motor does not
run.
1. Speed adjust
potentiometer or
reference voltage is
set to zero speed.
2. Speed adjust
potentiometer or
reference voltage is
not connected to
drive input properly;
connections are
open.
3. INHIBIT terminals are
jumpered.
4. S2 is shorted to S0.
5. Drive is in current
limit.
6. Drive is not receiving
AC line voltage.
7. Motor is not
connected.
1. Increase the speed
adjust potentiometer
setting or reference
voltage.
2. Check connections to
input. Verify that
connections are not
open.
3. Remove jumper from
the INHIBIT
terminals.
4. Remove short.
5. Verify that motor is
not jammed.
Increase FORWARD
TORQUE or
REVERSE TORQUE
setting if they are set
too low.
6. Apply AC line voltage
to L1 and L2.
7. Connect motor to A1
and A2.
Problem
Possible
Causes
Suggested
Solutions
Summary of Contents for MMRG Series
Page 57: ...NOTES 49...
Page 58: ...50 NOTES...
