Yaskawa V74X Drives User Manual

Page 19

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19

Wiring

Main and Control Circuit

Section 4

•

Signal leads and feedback leads (PG) must be separated from control leads main circuit leads, and any other
power cables, to prevent erroneous operation caused by electrical noise.

•

Lead length should NOT EXCEED 164 feet (50 meters). Wire sizes should be determined considering the volt-
age drop.

•

All AC relays, contactors and solenoids should have RC surge supressors installed across their coils.

•

All DC relays, contactors and solenoids should have diodes installed across their coils.

TO DRIVE
SIGNAL
TERMINALS

TO SHIELD
SHEATH
TERMINAL
(TERM. )

WRAP BOTH ENDS
OF SHEATH WITH
INSULATING TAPE

CRIMP
CONNECTION

SHIELD SHEATH

OUTER JACKET

DO NOT
CONNECT

TO
EXTERNAL
CIRCUIT

Figure 1-1. Shielded Sheath Termination

IG.V7.01_new format.qxd:IG.V7.01_new format.qxd 8/21/07 2:24 PM Page 19

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