I have the following:
SM1720D smartmotor
CBLIO-ISO1 I/O cable
CBLSM1 communications/power cable
PS24V20AF110-S1 dc power supply
I have a question on the I/O cable, specifically the leads for the control power (+red and -black. Do I wire these to the power supply that is also running the motor?
It is an I/O cable and I am not sure if this should run to the PLC power supply?
You don't need to connect the control power unless your motor is an SM1720D-DE (Drive Enable). You should be careful to not let those signals short to anything if unused.
Here is the answer I received from tech support. They are telling me to hook up the control power.
FYI the motor is not a -DE option
Hello Kurtis,
Thank you for the inquiry. You can tie your control power to either power supply (does not matter which one), as long as it gets at least 24V. If this motor has a –DE option, your drive power will be separate from the control power, so you need to make sure that your controller only gets between 24-32V and nothing higher than that. Your drive power can go from 24-48V.
I hope that answered your question. Please let us know if you need any other information. Thank you and have a nice day.
Sincerely,
Vaibhav Tank
Applications Engineer
Moog Animatics
Don't hook up the control power pins on a non -DE motor. Pin 14 is internally connected to A2 and Pin 15 is internally connected to A1. This would cause a ground loop.
Be sure that the control power wires (connected to pins 14 and 15) don't short out to anything. They will have whatever voltage A1 and A2 have.
Thanks csearcy. I have the wires hooked up and verified. Now I need to make a note that when I turn my plc output ON, I turn off the input on the smartmotor.