Output Wiring - Panasonic FP-XH M8N16PD User Manual

5.3.3 Output Wiring

 Protection circuit of the inductive load
For inductive load, please install a protection circuit parallel with the load. When the DC
inductive load is switched on/off, the protection circuit has a great positive influence on the
service life, particularly for the relay output type. Therefore, make sure the diode is connected
at both ends of the load.
For AC load
Surge suppressor
Output
terminal
PLC
COM
terminal
Example of surge suppressor
For DC load
Output
terminal
PLC
COM
terminal
Diode Reverse voltage
Average rectified current
 Precautions on using capacitive loads
When connecting a load with a large impact current, please set up the protection circuit as the
following figure to minimize its impact.
Resistor
Output
terminal
PLC
COM
terminal
R C
Output
terminal
Load
PLC
COM
terminal
Resistance at 50Ω
Capacity 0.47 μF
Diode
Load
Higher than 3 times the rated load voltage
Greater than the load current
Load
PLC
5.3 Wiring of Input and Output
Non-linear resistor
Load
Inductance
Output
terminal
COM
terminal
Load
5-11