January 2013L010197
Note: After the current has been determined, according to the motor connections above, use Table 8 to
choose the proper setting for the current setting potentiometer.
Connecting the Step Motor
Phase 1 and Phase 3 of the step motor are connected to pins 1 and 2 on connector TB2. Phase 2 and
Phase 4 of the step motor are connected to pins 3 and 4 on connector TB2. The Motors case can be
grounded to pin 5 on connector TB2. Refer to Figures 1 & 2 for TYPICAL APPLICATION HOOK-UP.
Note: The physical direction of the motor with respect to the direction input will depend on the connection
of the motor windings. To reverse the direction of the motor with respect to the direction input, switch the
wires on Phase 1 and Phase 3.
WARNING: Do not connect or disconnect motor wires while power is applied!
Short-Circuit, Mis-Wire, and Over-Current Conditions
If it is found that there is a condition that causes on over current in the driver phase transistors, the Red
LED will turn on solid and power will be shut off to the motor. To reset the drive turn power off, check
wiring, and turn power back on.
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