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4.8.2 Signal Descriptions
OPTO
Opto-Isolator Supply
User supplied power for the opto-isolators.
PULSE
Pulse Input
A low to high transition on this terminal advances the motor one step.
The step size is determined by the Step Resolution switch setting.
DIR
Direction Input
When this signal is high, motor rotation will be clockwise. Rotation will
be counter-clockwise when this signal is low.
Clockwise and counter-clockwise directions are properly oriented
when viewing the motor from the end opposite the mounting flange.
AWO
All Windings Off Input
When this signal is low, AC and DC current to the motor is zero.
There is no holding torque when the AWO signal is low.
If you are using the drive with an SS2000I or SS2000I-V
control, the READY input and the OPTO input on the
control must be jumpered together.
4.8.3 Level Requirements
OPTO
Voltage ..................... 4.5 to 6.0 VDC
Current...................... 16 mA per signal used
Other Signals
Voltage
Low .................... 0.8 VDC
0.0 VDC
High ................... OPTO
OPTO - 1 volt
Current
Low .................... 16 mA
High ................... 0.2 mA
4.8.4 Timing Requirements
PULSE
Max. Frequency ........ 500 kHz
Max. Rise And
Fall Times ................. 1 microsecond
Min. Pulse Width ...... 1 microsecond
Other Signals
Response Time ........ 50 microseconds
