2.2 Wiring
2-28
[ 3 ] Control circuit wiring precautions
■ FRN0346GS-2G, FRN0432G2S-2G, FRN0325G2□-4G to FRN1386G2□-4G
(1) Run the wiring along the plate on the left side of the inverter as shown in Fig. 2.2-13.
(2) Secure the wiring to wire holders with cable ties (INSULOK, etc.)
Use cable ties with width of no greater than 3.8 mm (0.15 in), and thickness of no greater than 1.5 mm (0.06
in).
Fig. 2.2-13 Control circuit wiring route and securing locations
• The control circuit terminal lines should be routed as far as possible from the main circuit routing.
Malfunction may occur due to noise.
• To prevent direct contact with the main circuit live sections (such as the main circuit terminal block),
route the control circuit wiring inside the inverter as bundles using cable ties.
Control signal lines generally do not have a reinforced insulation coating, and therefore if control signal lines
come into contact with live parts of the main circuit, the insulation coating may be damaged for some reason. In
such a case, there is a danger that high voltage from the main circuit will be applied to the control signal lines,
and therefore care should be taken to ensure that they do not come into contact with live parts of the main circuit.
Failure to observe this could result in an accident or electric shock.
Noise is produced by the inverter, motors, and wiring.
Take care to prevent the malfunction of peripheral sensors and devices.
Failure to observe this could result in an accident.
Control circuit
terminal block
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