User`s guide

45
CHAPTER 3 - INSTALLATION
AND CONNECTION
Inverter side
Insulate with tape
Figure 3.11
- Shield connection
Connect to earth: bolts are
located on the heatsink
Do not ground
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 separationdistance of 5 cm (2in)at the crossing
point.
Connect the shield as shown below:
4)
For wiring distances longerthan50m (150ft),it is necessary
to use galvanic isolators for the XC1:5 to 9 signals.
5)
Relays, contactors, solenoids or eletromagnetic braking
coilsinstalled neartheinverters can generateinterferences
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 (refer to chapter 8),
separete the cable that connects the keypad to the inverter
fromother cables,maintaining a minimumdistance of 10cm
(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.