ABB ACH580-31 Hardware Manual page 111

2. Remove the front cover(s) if not already removed.
3. For frame R3: Pull the control panel holder up.
4. Cut an adequate hole into the rubber grommet and slide the grommet onto
the cable. Slide the cable through a hole in the bottom plate and attach the
grommet to the hole.
5. Route the cable as shown in the figures below.
6. Ground the outer shield of the cable 360° under the grounding clamp at the
cable entry. Keep the cable unstripped as close to the terminals of the control
unit as possible. Secure the cables inside the drive mechanically.
7. Ground the pair-cable shields and grounding wire at the grounding terminal
(SCR) of the control unit.
8. Connect the conductors to the appropriate terminals of the control unit and
tighten to 0.5 ... 0.6 N·m. See
Note:
• Leave the other ends of the control cable shields unconnected or ground them
indirectly through a high-frequency capacitor with a few nanofarads, eg, 3.3 nF
/ 630 V. The shield can also be grounded directly at both ends if they are in
the same ground line with no significant voltage drop between the end points.
• Keep any signal wire pairs twisted as close to the terminals as possible.
Twisting the wire with its return wire reduces disturbances caused by inductive
coupling.
Electrical installation – IEC 111
Default I/O connection diagram (page 137).