Connection Procedure - ABB ACS850 series Installations-Kurzanleitung

4

Connection procedure

Cabling examples are presented on page 5.
Tightening torques are presented on page
and at appropriate points in the text.
• Attach the terminal blocks included to the
drive.
• ACS850-04-025A-5...094A-5 only: Remove
the two plastic connector covers at the top
and bottom of the drive. Each cover is held
by two screws.
• On IT (ungrounded) systems and corner-
grounded TN systems, remove the following
screws:
VAR (ACS850-04-03A0-5...018A-5);
EMC, VAR1 and VAR2 (ACS850-04-025A-
5...094A-5).
• Fasten the two cable clamp plates included
to the drive, one at the top, one at the
bottom. The clamp plates are identical.
Quick installation guide - ACS850-04
5
ACS850-04-03A0-5...018A-5:
1.5 N·m (13 lbf·in)
ACS850-04-025A-5...094A-5:
3 N·m (25 lbf·in)
1.5 N·m
(13 lbf·in)
• Strip the power cables so that the shields are
bare at the cable clamps.
• Connect the supply, resistor (if present) and
motor cables to the appropriate terminals of
the drive.
• Tighten the cable clamps onto the bare cable
shields. Connect the ends of the cable
shields to the ground terminals using cable
lugs. Cover visible bare shield with insulating
tape.
• ACS850-04-025A-5...094A-5 only: Cut
suitable slots on the edges of the connector
covers to accommodate the cables. Refit the
covers.
• Ground the motor cable shield at the motor
end.