LEESON FHP Series Chassis Mount Variable Speed Drives - Manual (Page 70)

60 Troubleshooting
3. Disable, then re-
enable the drive.
4. Ensure that
ENABLE (EN) and
COM terminals are
properly connected.
5. Verify that motor is
not jammed.
Increase TQLIM
setting if it is set
too low (page 47).
6. Apply AC line
voltage to L1 and
L2.
7. Connect motor to
drive outputs U, V
and W.
1. Calibrate MAX SPD
trimpot (page 46).
External line fuse does
not blow, but the motor
does not run (cont.)
Motor runs too slow or
too fast at set
speed
3. Drive is “tripped” off
or has gone into
thermal overload.
4. Drive has been
disabled.
5. Drive is in current
limit.
6. Drive is not receiving
AC voltage input.
7. Motor is not
connected.
1. MAX SPD trimpot is
not calibrated
correctly.
Problem Possible
Cause
Suggested
Solution