ABB ACH580 Series Installation, Operation And Maintenance Manual page 16

16
Guidelines for installing the drive to a TT system
The drive can be connected to a TT system under these conditions:
1. Residual current device has been installed in the supply system.
2. These screws have been disconnected. Otherwise EMC filter and ground-to-phase
varistor capacitor leakage current will cause the residual current device to trip.
Frame size
R3
R6
R8
*VAR screw also functions as the EMC AC screw in R8.
Note:
• Because the EMC filter screws have been disconnected, ABB does not guarantee the EMC
category.
• ABB does not guarantee the functioning of the ground leakage detector built inside the drive.
• In large systems the residual current device can trip without a real reason.
Power cable terminal and lead-through data
UL (NEC) ratings at U
Input, motor and DC cable entries, maximum wire sizes (per phase) and terminal
screw sizes and tightening torques are given below.
Cable
entries
Frame
1)
Per Ø
size
cable
type
pcs in
R3 1 0.91
R6 1 1.77
R8 1 1.77
1)
Maximum cable diameter accepted. For the bottom plate hole diameters, see the
Drives Hardware manual, publication number 3AXD50000037066.
2)
Minimum wire size does not necessarily have enough current capability for full load. Make sure the installation complies with local
codes and regulations.
Note: Only copper cables are allowed for drive types up to -039A-4.
ACH580 Ultra-Low Harmonic Drives Installation
ACH580 Ultra-Low Harmonic Drives Installation, Operation and Maintenance Manual
EMC filter screws
EMC
EMC AC, EMC DC
EMC DC
= 460 V
N
L1, L2, L3 terminals
Min wire Max wire
size (solid/ size
2)
stranded) (solid/
AWG AWG
20 6
10 2/0
6 300
L1
L2
L3
N
Drive
T1/U, T2/V, T3/W, UDC+, UDC- terminals
Tightening Min wire
size (solid/
torque
2
stranded)
lbf·ft AWG
1.3 20
4.1 10
25 4
Dimension drawings
Ground-to-phase varistor screws
VAR
VAR
VAR*
3AXD10000681917
Max wire Tightening
size (solid/
torque
stranded)
AWG lbf·ft
6 1.3
2/0 4.1
300 22
3AXD00000586715
chapter in the
Grounding
terminals
Tightening
torque
lb-ft
1.2
2.1
7.2
ACH580-31