37
Calibration
CURRENT LIMIT (CURR. LIMIT)
The CURRENT LIMIT setting determines the maximum torque for
accelerating and driving the motor. CURRENT LIMIT is factory set
at 120% of maximum drive current. You must recalibrate the
CURR. LIMIT setting if using a lower current motor. Refer to
Figure 13 (page 40) for typical CURR. LIMIT and IR COMP
settings.
1.
With no power applied to the drive, connect a DC
ammeter in series with the motor armature.
2.
Set the CURR. LIMIT trimpot to full CCW.
3.
Carefully lock the motor armature. Ensure that the motor
is firmly mounted.
4.
Apply line power. The motor should be stopped.
5.
Set the speed potentiometer or reference signal to
maximum speed. The motor should remain stopped.
6.
Slowly rotate the CURR. LIMIT trimpot clockwise (CW)
until the ammeter reads 120% of maximum motor armature
current.
7.
Set the speed adjust potentiometer or reference signal to
zero speed.
Warning
Although CURRENT LIMIT is set to 120% of maximum drive
current rating, continuous operation beyond that rating may
damage the motor. If you intend to operate beyond the
rating, contact your Minarik representative for assistance.
Summary of Contents for XL1100A
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