ABB ACS880-11 - Installing Option Modules; Reinstalling Cover(S)

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.
Installing option modules
See section Installing option modules (page 105).
Reinstalling cover(s)
After installation, reinstall the covers.
UL Type 12UL Type 1
2
1
2 N·m (1.5 lbf·ft)
R3
R3
2
1
2 N·m (1.5 lbf·ft)
Electrical installation – North America (NEC) 127