WEG CFW-10 EASYDRIVE User Manual page 31

CHAPTER 3 - INSTALLATION AND CONNECTION
NOTE!
If the input current from 4 mA to 20 mA is used as standard,
do not forget to set the Parameter P235 which defines the
signal type at AI1.
During the signal and control wire installation note the
following:
1) Cable cross section: (0.5 to 1.5) mm² / (20 to 14) AWG.
2) Max. Torque: 0.50 N.m (4.50 lbf.in).
3) XC1 wiring must be realized with shielded cables and to
be installed separately at a distance of 10cm (3.94 in) each
other for lengths up to 100m (328 ft) and at distance of
25cm (9.8 in) each other for lengths over 100m (328 ft). If
the crossing of these cables is unavoidable, install them
perpendicular, maintaining a mimimum separation distance
of 5cm (2in) at the crossing point.
Connect the shield as shown below:
Inverter
side
Connect to earth
Figure 3.9 - Shield connection
4) For wiring distances longer than 50 m ( 150 ft), the use of
galvanic isolators is required for the XC1:6 to 9 analog
signals.
5) Relays, contactors, solenoids or eletromagnetic braking
coils installed near inverters can eventually generate
interferences in the control circuit. To eliminate this
interference, connect RC suppressor in parallel with the
coils of AC relays. Connect free-wheeling diode in case of
DC relays.
Insulate with
tape
Do not
ground
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