Output Wiring; Protective Circuit For Inductive Loads - Panasonic FP0R User Manual

5.5.2 Output wiring

5.5.2.1 Protective circuit for inductive loads

Using an AC inductive load (relay output type)
FP0R User's Manual
The OFF voltage of the input is 2.4V. Therefore, when the power supply is
24V, select the bleeder resistor R so that the current will be greater than
the result of this formula:
The resistance R of the bleeder resistor is:
The power dissipation P of the resistor is:
V = Power supply voltage
In the actual selection, use a value that is 3 to 5 times the value of P.
There is no fuse in the output circuit. It is recommended to install external
fuses in every circuit to reduce the risk of burning out the output circuit
when the output is shorted.
Do not connect a load that exceeds the maximum switching ability of the
output terminal.
With an inductive load, a protective circuit should be installed in parallel
with the load.
When switching DC inductive loads with the relay output type, be sure to
connect a diode across the ends of the load.
Installation and wiring
FP0R
Q Output terminal
W Load
E Surge absorber, e.g. re-
sistance R: 50, capacitance
C: 0.47F
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