LEESON FHP Series Chassis Mount Variable Speed Drives - Manual (Page 57)

47 Calibration
TORQUE LIMIT (TQ LIMIT)
1. With no power applied to the drive, connect a (true
RMS) ammeter in series with one of the motor leads.
2. Set the TQ LIMIT trimpot to full CCW.
3. Carefully lock the motor shaft. Ensure that the motor is
firmly mounted.
4. Apply line power. The motor should be stopped.
5. Set the speed adjust potentiometer or reference signal
to maximum speed. The motor should remain stopped.
6. Slowly rotate the TQ LIMIT trimpot clockwise (CW) until
the ammeter reads 120% of maximum motor current.
7. Set the speed adjust potentiometer or reference signal
to zero speed.
8. Remove power from the drive.
9. Remove the lock from the motor shaft.
10. Remove the ammeter in series with the motor lead.
Warning
Although the TQ LIMIT trimpot can be set up to 150%
of the drive nameplate rating, continuous operation
beyond the drive nameplate rating may cause
damage to the motor and/or drive.
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