Appendix C – IEC Installation
ACS/ACC/ACP 604/607 Drives ACx=ACS/ACC/ACP C-9
b. If the outer surface of the screen is covered with non-
conductive material (figure below)
- Cut the screen in the middle of the bare part. Be careful not to
cut the conductors.
- Turn the conductive surface of the screen visible.
- Cover the turned screen and the stripped cable with copper foil
to keep the shielding continuous.
Note:
The earthing wire (if
present) must not be cut.
- Push the two parts of the
lead-through plate
together such that
the
EMI conductive cushions
press tightly round the screen.
5. Lock the two parts of the
lead-through plate
by tightening the
position screws
.
6. Connect the control cables in appropriate terminal to NIOC/NIOCP
board (or optional terminal block X2/2TB, or other options on the
DIN rail). Refer to
Appendix A
and
Firmware Manual
. Tighten
screw to secure connection. Connect the twisted screen (as short
as possible) to the earthing rail of the terminal.
7. Close the cabinet door if no other cables are to be connected.
Components
Connected to Digital/
Analogue Inputs
WARNING! IEC 664 requires double or reinforced insulation between
live parts and the surface of accessible parts of electrical equipment
which are either non-conductive or conductive but not connected to the
ground (PE).
To fulfil this requirement, the connection of a thermistor (and other
similar components) to the digital inputs of ACx 600 can be
implemented in three alternate ways:
Cable screen
Screened twisted pair
Earthing wire
Copper foil
Stripped cable Conductive surface of
the screen turned visible
Stripped part covered
with copper foil
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