10#L010185 June 2007
8 Lead Motors
Series Connection: When configuring the motor windings in series, use the per phase (or unipolar)
current rating to determine the current setting potentiometer value.
Parallel Connection: When configuring the motor windings in parallel, multiply the per phase (or unipolar)
current rating by 2.0 to determine the current setting potentiometer value.
Note: After the current has been determined, according to the motor connections above, use the potenti-
ometer setting table to choose the proper setting for the current setting potentiometer.
Connecting the Step Motor
The MB10SI1 is designed to accept one motor. For wiring of the motor refer to the pages containing the
connector descriptions and hookup diagrams. The motor is wired into pins 3, 4, 5 and 6 of the terminal
block.
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. With the operation of 2 motors, they will run in the opposite direction when
wired the same.
WARNING: Do not connect or disconnect motor wires while power is applied!
Circuit Protection
This driver is equipped with over current protection.
Note: When drive experiences a fault condition, it will seize to function. Power down, inspect wiring,
motors, etc. and allow for a 30 second pause to resume functioning. If driver is too hot, additional ventilation
and airflow should be added to prevent temperature to exceed recommended temperature limit.