(4) Wiring Precautions
The external interconnection wiring must be performed with following proce-
dures. After completing VS-656RC5 interconnections, be sure to check that the
connections are correct. Never use control circuit buzzer check.
(a) Precautions on Control Circuit Wiring
S Separate control circuit wires from main circuit wires and other power
cables to prevent erroneous operation caused by noise interference.
S Separate the wiring of control circuit terminals from other control terminals
or main circuit wirings.
S Wiring distance should be less than 50 m.
S Insert the wire into the lower part of the terminal block and connect it tightly
with a screwdriver. Wire sheath strip length must be 7 mm.
0.6 mm max
3.5 mm max
Screwdriver Blade Width
7mm
Fig.11 Control Circuit Terminal Wiring
S Use twisted shielded or twisted-pair shielded wire for the control circuit line
and connect the shielded sheath to inverter terminal E. (See Fig.12)
Never connect.
To power regenerative unit
shielded sheath terminal E
Shielded Sheath
Armor
Insulate these parts
with insulating tape.
Fig.12 Shielded Wire Termination
28
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