ACH550-UH User’s Manual
1-309
Technical data
Drive’s power connection terminals
The following table provides specifications for the drive’s power connection
terminals.
1. Do not use aluminum cable with frame sizes R1…R4.
2. See the following section for smaller wire sizes on frame size R6.
Power terminal considerations – R6 Frame size
WARNING!
For R6 power terminals, if
compression lugs are supplied, they can only be
used for wire sizes that are 95 mm
2
(3/0 AWG) or
larger. Smaller wires will loosen and may damage
the drive, and require ring lugs as described below.
Ring Lugs
On the R6 frame size, if the cable size used is less
than 95 mm
2
(3/0 AWG) or if no compression lugs
are supplied, use ring lugs according to the
following procedure.
1. Select appropriate ring lugs from the following table.
2. Attach the supplied terminal lugs to the drive end of the cables.
3. Isolate the ends of the ring lugs with insulating tape or shrink tubing.
Frame
Size
U1, V1, W1
U2, V2, W2
BRK+, UDC+ Terminals
Earthing PE Terminal
Min. Wire Size
Max. Wire Size
Torque
Max. Wire Size
Torque
mm
2
AWG
mm
2
AWG
Nm
lb-ft
mm
2
AWG
Nm
lb-ft
R1
Note 1
0.75
18
16
6
1.3
1
16
6
1.3
1
R2
Note 1
0.75
18
16
6
1.3
1
16
6
1.3
1
R3
Note 1
2.5
14
25
3
2.7
2
25
3
2.7
2
R4
Note 1
10
8
50
1/0
5.6
4
50
1/0
5.6
4
R5
16
6
70
2/0
15
11
70
2/0
15
11
R6
95
Note 2
3/0
185
350 MCM
40
30
185
350 MCM
40
30
R7
16
6
185
350 MCM
40
30
Attach appropriate ring lugs to
ground wires and mount with,
up to five 13/32 bolts.
R8
16
6
2x240 2x500 MCM
57
42
X60002
2
3
4
Summary of Contents for ACH550-UH HVAC
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Page 8: ...1 8 ACH550 UH User s Manual Table of contents ...
Page 32: ...1 32 ACH550 UH User s Manual Installation ...
Page 66: ...1 66 ACH550 UH User s Manual Application macros ...
Page 186: ...1 186 ACH550 UH User s Manual Parameters ...
Page 333: ...ACH550 UH User s Manual 1 333 Technical data ...
