BOOK0795-F
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5. Run the motor at maximum speed, and start turning the IR/TACH potentiometer clockwise until motor
speed increases above desired speed. Continue turning the potentiometer clockwise until motor speed
decreases to desired speed.
MINIMUM SPEED
1. Be sure Segment 6 of DIP Switch S3 is in ON (Closed) position.
2. Turn the MIN SPD potentiometer fully counterclockwise (0%) for zero speed.
3. Set the MOTOR SPEED potentiometer at 0% or the external speed reference signal at minimum, as appli-
cable.
4. Initiate a Run command and adjust the MIN SPD potentiometer for the desired minimum speed (adjustable
from 0 to 40% of motor base speed).
OFFSET
An offset adjustment is desirable when a 4 mA to 20 mA speed reference signal is used. The MIN SPD
potentiometer compensates for the 4 mA offset.
1. Be sure Segment 6 of DIP Switch S3 is in OFF (Open) position, and a wire jumper connects between TB2-
1 and TB2-3.
2. Set the speed reference signal at 4 mA and initiate a Run command.
3. Adjust the MIN SPD potentiometer as desired.
NOTE: The MIN SPD potentiometer may be ineffective between 50% and 100%.
CURRENT LIMIT
1. Turn the CUR LMT potentiometer fully clockwise (100%) to limit motor armature current at 150% of
rated.
2. Turn the CUR LMT potentiometer counterclockwise to reduce maximum motor armature current.
NOTES: a. An LED glows red on the controller control board when motor armature current is being lim-
ited.
b. An external 5K ohm Current (Torque) Limit potentiometer can be used as shown in Figure 12
on page 12. Segment 5 of DIP Switch S3 must be in OFF (Open) position if an external Cur-
rent (Torque) Limit potentiometer is desired.
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