ABB ACS880-07CLC, Hardware Manual

Page: 84 / 214

Connecting the control cables
See chapter Control units of the drive (page 103) for the default I/O connections of the inverter
unit (with the ACS880 primary control program). The default I/O connections can be different
with some hardware options, see the circuit diagrams delivered with the drive for the actual
wiring. For other control programs, see their firmware manuals.
WARNING!
The alarm indication connections of optional ground fault monitoring (+Q954) at
terminal block X22.2 are decisive voltage class DVC-C. Do not connect these
terminals to, for example, the 24 V DC circuit.
￭ Control cable connection procedure
WARNING!
Obey the instructions in chapter Safety instructions . If you ignore them, injury or
death, or damage to the equipment can occur.
1.
Stop the drive (if running) and do the steps in section Electrical safety
precautions (page 16) before you start the work.
2. Run the control cables into the cabinet as described in section Grounding the outer
shields of the control cables at the cabinet entry below.
3. Route the control cables as described in section Routing the control cables inside the
cabinet (page 86) .
4. Connect the control cables as described in section Connecting control cabling (page 86) .
Grounding the outer shields of the control cables at the cabinet entry
Ground the outer shields of all control cables 360 degrees at the EMI conductive cushions
as follows (example constructions are shown below, the actual hardware may vary):
1. Loosen the tightening screws of the EMI conductive cushions and pull the cushions
apart.
2. Cut adequate holes to the rubber grommets in the entry plate and put the cables through
the grommets and the cushions.
3. Strip off the cable plastic sheath above the entry plate just enough to ensure proper
connection of the bare shield and the EMI conductive cushions.
4. Tighten the two tightening screws so that the EMI conductive cushions press tightly
round the bare shield.
84 Electrical installation