58
Troubleshooting
TQ LIMIT LED
The yellow TQ LIMIT LED is on when the drive output
current exceeds the threshold set by the TQ LIMIT trimpot.
When the TQ LIMIT LED turns on, shut down the motor and
drive by disabling or removing power. Check the motor to
make sure it is not jammed or overloaded. The TQ LIMIT
trimpot may need to be recalibrated. See the Calibration
section (page 47) for information on calibrating the TQ
LIMIT trimpot.
IC502
J501
JMP501
J502
J503
L1
L2
MAX
TQ LIMIT
BOOST
ACCEL
DECEL
TB501
AC
AC
-
POWER
FAULT
TQ
V
U
W
POWER
FAULT
TQ
C510
Figure 29. VFD Series diagnostic LED locations