How Can We Help?
< All Topics
Print

Parallel connection of totem pole outputs

Question

Question

The TRD-N / GK series totem pole output is used by being connected to the high speed counter input of the PLC.
Adding a fast counter to use for another control,
Is it possible to connect in parallel?
The high-speed counter input has a pull-up voltage of 24V and a current of 2 to 5mA for both + common and -common.

Answer

Answer

The TRD-N series totem pole output is a specification of current sink (inflow) 30mA / current source (outflow) 10mA.
Therefore, when the high-speed counter input current of PLC is 5mA,
+ Up to 6 units when used in common [Current sink (inflow) 30mA ÷ High-speed counter input current 5mA]
-When used in common, up to 2 units can be connected. [Current source (outflow) 10mA ÷ High-speed counter input current 5mA]
However, if it is used near the rated upper limit, perform sufficient operation verification.
The TRD-GK series totem pole output is limited to 6 units because both the current sink (inflow) and current source (outflow) are 30mA specifications.

Product

Related manual

Related keywords

Output current Input current

Inquiry

Previous Parallel connection of open collector outputs
Next The model number has a 4-digit number at the end of the model number
Table of Contents