Appendix A – Specifications
57
Analog Monitor (optional)
Two analog monitor outputs are available on pins 21 and 22. Use pin 25 as a
ground reference for these monitors.
Analog Monitor Specifications:
Maximum Output: ±10V (scalable; use DMON command)
Resolution: 8 bits peak to peak (for full scale signal)
Internal Connections
21 Analog Monitor A
22 Analog Monitor B
23
24
25 Analog Ground
DRIVE I/O Connector
221 Ω
User configurable
output variable
-
+
Same circuit
design as
Analog Monitor A
Analog Monitors
You can configure the analog outputs to monitor many different variables, such as
current, velocity, temperature, etc. You can also scale the outputs. See the DMON
commands in Chapter 3 Configuration and the Gemini Programmer's Reference
for more information.
WARNING
Do not use Analog Monitors as control signals. Because of offsets, limited resolu-
tion and accuracy, use the analog monitor outputs only for oscilloscope monitoring.
Connecting Feedback Devices
Gemini GV servo products use the 26 pin MOTOR FEEDBACK connector. The
Gemini GT step motor drive does not use the MOTOR FEEDBACK connector.
You do not need to make connections to this connector.
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