Eliwell EWCFW-08 Bedienungsanleitung Seite 44

CHAPTER 3 - INSTALLATION AND CONNECTION
44
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) Maximum Torque: 0.50 N.m (4.50 lbf.in).
3) XC1 wiring must be connected with shielded cables and
installed at least 10 cm (3.9 in) minimum separately from
other wiring (power, control at 110/220 V, etc) for lengths
up to 100 m (330 ft) and 25 cm (9.8 in) minimum for total
lengths over 100 m (330 ft). If the crossing of these cables
is unavoidable, install them perpendicular, maintaining a
mimimum separation distance of 5 cm (2 in) at the crossing
point.
Connect the shield as shown below:
Inverter side
Connect to earth: bolts are
located on the heatsink
Figure 3.11 - Shield connection
4) For wiring distances longer than 50 m (150 ft), it is necessary
to use galvanic isolators for the XC1:5 to 9 signals.
5) Relays, contactors, solenoids or eletromagnetic braking
coils installed near the inverters can 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.
6) When external keypad (HMI) is used, separete the cable
that connects the keypad to the inverter from other cables,
maintaining a minimum distance of 10 cm (3.9 in) between
them.
7) When analog reference (AI1 or AI2) is used and the
frequency oscillates (problem caused by eletromagnetic
interference) connect XC1:5 to the inverter heatsink.
Insulate with tape
Do not ground