ABB ACS880-1607LC, Руководство по оборудованию

Страница: 43 / 106

Connecting the control cables for the converter unit
￭ Default I/O connection diagram
User can connect the relay outputs to external monitoring circuits (not reserved for any
internal use).
See Control units of the drive .
￭ Connecting the control cables
See the chapter on control units for the default I/O connections. Note that the default I/O
connections can be affected by some options. See the circuit diagrams delivered with the
drive for the actual wiring.
Control cable connection procedure
WARNING!
Obey the safety instructions given in Safety instructions for ACS880
liquid-cooled multidrive cabinets and modules (3AXD50000048633
[English]). If you ignore the safety instructions, injury or death, or damage
to the equipment can occur.
If you are not a qualified electrician, do not do installation or maintenance
work.
1. Stop the drive (if running) and do the steps in section Electrical safety
precautions (page 39) 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 .
4. Connect the control cables as described in section Connecting control cabling .
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.
Electrical installation 43
11