Chapter 3 Operation Order and Installation
3.3.2 Power Wiring
(1) In case voltage regulation is larger than specified, connect constant voltage transformer.
(2) Connect noise that includes small noise between line and earth.
(When there is much noise, connect insulated transformer.)
(3) Isolate the contorller power, I/O devices and power devices as follows.
(4) If using DC24V of the controller, do not connect DC24V of several power modules in parallel.
(5) AC power cables should be compactly twisted and connected in the shortest distance.
(6) AC power cables should be as thick as possible(2mm
2
) to reduce voltage drop.
(7) AC power cables should not be installed close to main circuit cable(high voltage/high current) and I/O signal cable.
They should be 100mm away from such cables
(8) When noise penetration coure use an insulated shielding transformer or noise filter.
(9) Wiring of each input power should be twisted as short as possible and the wiring of shielding transformer or noise
filter should not be arranged via a duct.
Constant
voltage
transformer
Constant
voltage
transformer
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