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Gemini GT Hardware Installation Guide
Digital Outputs (optional)
The Gemini drive has three digital outputs. Their functions are:
Output 2*
Drive Fault Output
Output 3*
At Limit
Output 4*
Position Error Output
* For compatibility with other Compumotor products, the outputs are numbered 2, 3 and 4,
rather than 1, 2 and 3.
All connections are shown in the next drawing.
Internal Connections
Same circuit
design as
Output 2
43 Output 2 (Drive fault)
44 Output Ground
45 Output 3 (At Limit)
46 Output 4 (Stall)
DRIVE I/O Connector
Open Collector,
300mA sink
capability
Do not apply
more than 30VDC
Outputs
You can use the OUTLVL command to configure each of the outputs as active
high or active low.
Step & Direction Output (optional)
Pins 14 – 17 are step and direction outputs.
They are derived from incoming command pulses (step/direction, CW/CCW, or
encoder inputs). The outputs are based on calculated position.
Step & Direction Output Specifications:
Default Resolution:
25,000 steps per revolution
Clockwise Rotation:
Di = High
Counterclockwise Rotation:
Di = Low
The step and direction output circuit is shown in the next drawing.
Internal Connections
14 Step+ Output
15 Step– Output
16 Di Output
17 Direction– Output
20 Digital Ground
DRIVE I/O Connector
From DSP
From DSP
AM26LS31
AM26LS31
Step & Direction Output
You can use the ORES command to configure the step and direction outputs.
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