Wiring; Power Supply Unit - Panasonic SF-C21 Instruction Manual

Wiring

2-6 Wiring
Take countermeasure against the system to be applied for this device so as not to carry out the
dangerous performance caused by the earth failure.
Failure to do so could cause invalid for the system stop, resulting in death or serious injury.
<Reference>
Use a safety relay unit or an equivalent control circuit in safety for control output 1 / 2.

2-6-1 Power Supply Unit

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
malunction of this device.
<Reference>
A specialist who has the required electrical knowledge should perform the wiring.
The 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 (In case CE Marking conformity
is required.)
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 commer-
cially 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 ab-
sorber to the origin of the surge.
7) Power supply unit corresponding to CLASS 2 (In case
quired.)
When turning ON the power supply to this device, turn ON the external power supply within 30
sec. after the internal power supply is turned ON, or turn ON the external power supply first. Delay
in power ON to the external power supply locks out this device, displaying "
indicator (red).
20
WARNING
WARNING
CAUTION
© Panasonic Industrial Devices SUNX Co., Ltd. 2016
TÜV Mark conformity is re-
C US
" in the 7-segment