6
#L010128
June 2002
Hard Limits:
These two inputs are active low and are controlled by the direction of the pulse generator.
When the pulse generator is running in the positive direction only hard+ will work. When the pulse generator
is running in the negative direction then only hard- will work. When pulled low the pulse generator will
stop all pulses to the motor. To reverse off of a Hard Limit, release the Run input, change directions, and
activate the Run input again to move in the opposite direction.
External Clock Output:
The external clock is the output of the internal pulse generator that can be used
to daisy chain other step motor drivers together. This is an open collector output that is capable of sinking
10mA.
Busy Output:
This is an open collector output that is capable of sinking 10mA. It is current sinking when
the pulse generator is operating (sending pulses), and open when the pulse generator is not sending pulses.
Connector Descriptions
Connector P2:
Pin #
Description
1
Power Supply Ground (0VDC)
2
Power Supply Input (12VDC - 35VDC)
3
Motor On/Off
4
Direction In
5
Speeds 4
6
Speeds 3
7
Speeds 2
8
Run
9
Ground (0VDC)
Connector P3:
Pin #
Description
1
Clock Output
2
Busy Output
3
Hard-
4
Hard+
5
Soft-
6
Soft+
7
Ground (0VDC)
Connector P5: (One Motor)
Pin #
Description
1
Motor 1, Phase 1
2
No Connect
3
No Connect
4
Motor 1, Phase 4
5
Motor Ground
6
No Connect
7
Motor 1, Phase 3
8
No Connect
9
Motor 1, Phase 2
10
No Connect
Connector P5: (Two Motors)
Pin #
Description
1
Motor 1, Phase 1
2
Motor 1, Phase 3
3
Motor 1, Phase 2
4
Motor 1, Phase 4
5
Motor 1 Ground
6
Motor 2, Phase 1
7
Motor 2, Phase 3
8
Motor 2, Phase 2
9
Motor 2, Phase 4
10
Motor 2 Ground
July 2018
