Minarik MM30000 Series, User Manual

Page: 28 / 48

MAXIMUM SPEED (MAX SPD)
The MAX SPD setting determines the motor speed when the
speed adjust potentiometer is turned full CW. It is factory set
for maximum rated speed.
To calibrate, set the MAX SPD trimpot full CCW. Set the
speed adjust potentiometer or reference voltage to maximum.
Adjust the MAX SPD trimpot until the desired maximum
motor speed is reached.
REGULATION (IR COMP)
The IR COMP trimpot setting determines the degree to which
motor speed is held constant as the motor load changes. It is
factory set for optimum motor regulation.
To calibrate IR COMP (exact calibration):
1. Turn the IR COMP trimpot full CCW.
2. Set the speed adjust potentiometer until the motor runs at
midspeed without load (for example, 900 RPM for an 1800
RPM motor) A hand held tachometer may be used to
measure motor speed.
3. Load the motor armature to its full load armature current
rating. The motor should slow down.
4. While keeping the load on the motor, rotate the IR COMP
trimpot until the motor runs at the speed measured in step 2.
22 Calibration
250-0146r3_readers_spreads.qxd 7/10/01 4:40 PM Page 22