Hello all,
I'm doing wiring on a PLC sinking output module and I have concern on that which needs clarification.
Thanks in advance for the help.
The Set-up:
Connect a buzzer (24VDC) to a Sinking Output module. eg.: Omron C200H-OD219, rated 24VDc, 0.5A. Buzzer + terminal to 24V supply. Buzzer - terminal to PLC output point.
My concern:
If any of the buzzer terminal shorted to chassis, infinite current in the loop might cause damage.
My question:
Does the output module have overcurrent protection?
If no, will it damage the whole output module or just the point?
Is it necessary to install an isolation relay (even the buzzer consumes only 20mA)?
I'm doing wiring on a PLC sinking output module and I have concern on that which needs clarification.
Thanks in advance for the help.
The Set-up:
Connect a buzzer (24VDC) to a Sinking Output module. eg.: Omron C200H-OD219, rated 24VDc, 0.5A. Buzzer + terminal to 24V supply. Buzzer - terminal to PLC output point.
My concern:
If any of the buzzer terminal shorted to chassis, infinite current in the loop might cause damage.
My question:
Does the output module have overcurrent protection?
If no, will it damage the whole output module or just the point?
Is it necessary to install an isolation relay (even the buzzer consumes only 20mA)?