Wiring; Power Supply Unit - Panasonic SF4-AH Series Instruction Manual

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3-3 Wiring

 Connect the shield to the frame ground (F.G.) without fail. Failure to do so can

 Take countermeasure against the system to be applied for this device so as not

Use a safety relay unit or an equivalent control circuit in safety for FSD.

Make sure to insulate the ends of the unused lead wires.

3-3-1

Wire correctly using a power supply unit which conforms to the laws and standards

of the region where this device is to be used. If the power supply unit is

non-conforming or the wiring is improper, it can cause damage or malfunction of

this device.

A specialist who has the required electrical knowledge should perform the wiring.

The DC power supply unit must satisfy the conditions given below.

1) Power supply unit authorized in the region where this device is to be used.

2) Power supply unit SELV (safety extra low voltage) / PELV (protected extra low voltage)

conforming to EMC Directive and Low-voltage Directive (only for requiring CE marking

conformation).

3) Power supply unit conforming to the Low-voltage directive and with an output of 100VA or less.

4) The frame ground (F.G.) terminal must be connected to ground when using a commercially

available switching regulator.

5) Power supply unit with an output holding time of 20ms or more.

6) In case a surge is generated, take countermeasures such as connecting a surge absorber to

the origin of the surge.

7) Power supply unit corresponding to CLASS 2 (only for requiring UL Listing Mark / C-UL US

Listing Mark conformation)

cause malfunction due to noise, which can result in serious injury or death.

Further, the wiring should be done in a metal box connected to the frame ground.

to carry out the dangerous performance caused by the earth failure. Failure to do

so could cause invalid for the system stop, resulting in serious body injury or

death.

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