Input signal
- The inputs of the Ezi-IO EtherCAT are all photocouplers. The signal shows the status of internal photocouplers [ON: conduction], [OFF: Non-conduction], not displaying the voltage levels of the signal. Depending on the output method of peripheral devices, there are NPN(SINK) type or PNP(SOURCE) type module products. The input circuit for this is based on 24V and the input current is 15mA maximum for each channel.
Output signal
- The outputs of the Ezi-IO EtherCAT are all transistors. Depending on the input method of peripheral devices, there are NPN(SINK) type or PNP(SOURCE) type module products. The output current is 200mA maximum per channel.
Remark (NPN / PNP / SINK / SOURCE
- Fig1. NPN Out type interface
- Fig1. shows example of NPN out interface. When Transistor is on, Load current is flew into inside of NPN out which we call it as SINK type or NPN open collector type. Please connect (+) voltage into the load which connects output.
- Fig2. PNP Out type interface
- Fig2. shows example of PNP out interface. When Transistor is on, Load current is flew out to outside load. We call it as SOURCE type or PNP open collector type. Please connect (-) voltage into other side of load which connects output.
