14
Power Connections
Make all power connections with 75
o
C rated copper wiring.
Conduit entry must be from the bottom on all drives. Conduit entries are
provided on smaller drives. For drives with auxiliary enclosures, refer
to the dimensional drawings provided for conduit entry locations.
To meet UL requirements, install the metal grounding plate in all drives
that have a plastic bottom. Install the grounding plate just above the
plastic bottom. Ground the metal plate to the chassis and ground the
conduit to the metal plate.
The conduit entries provide strain relief for the wires in drives mounted
in NEMA 1 or NEMA 12 enclosures. With chassis mounted drives, the
power and control wires must have strain relief supplied by the installer.
D
O
NOT
rely on the terminal blocks to provide strain relief.
Input Power Connection
For drives with no auxiliary enclosure, connect input power to drive
terminals L1, L2, and L3, (terminal numbers 91, 92, and 93). If an auxiliary
enclosure is provided, input power connections are made in the auxiliary
enclosure. Refer to the connection diagrams shipped with the drive.
Size wiring to the input current of the drive as shown in the tables
below. Maximum AWG wire size is also provided.
Enclosures for larger drives and auxiliary en-
closures are made of metal. To avoid getting
metal chips into electronics, do not drill any
holes after unit has been installed in a vertical
position.
460 VAC Input Current/Wire Gage
208 VAC Input Current/Wire Gage
All current ratings are in amps.
Drive Input
Current
Maximum
AWG
Model
2.5
10
H2.1
2.5
10
H3.0
3.4
10
H3.4
4.8
10
H4.8
8.3
10
H8.2
10.6
10
H11
14
10
H14
21
6
H21
27.6
6
H27
34
6
H34
41
6
H40
53
2
H52
64
2
H65
77
2
H77
103
1/0
H106
145
2/0
H130
174
3/0
H160
206
2x1/0
H190
256
2x1/0
H240
317
2x3/0
H302
366
2x4/0
H361
443
3x1/0
H443
540
3x3/0
H540
590
3x3/0
H590
678
3x4/0
H678
Connecting input power to motor terminals will
result in drive failure when power is applied.
Motor Wiring Connection
For drives with no auxiliary enclosure, connect the motor to drive
terminals U, V, and W (terminal numbers 96, 97, and 98). Terminal 99
is earth ground. If an auxiliary enclosure is provided, refer to the
connection diagrams shipped with the drive. Ground the shield on the
motor wire, if used, at both the drive and the motor.
Grounding
Ground the drive properly. Use a ground wire at least 7 AWG (10mm
2
).
Connect the ground wire directly to a reliable earth ground. Do not use
the conduit connecting to the drive as a replacement for a ground wire. Do
not ground one drive to another in a “daisy chain” fashion.
Electronic Thermal Protection
The electronic thermal relay is UL approved for single motor thermal
protection as long as the following is complied with:
1.
Parameter 117, Thermal Protection, is set to ETR TRIP.
2.
Parameter 105, Motor Current, is set for the full-load nameplate
motor current.
CAUTION
!
DANGER
!
For operator safety, it is important to ground
drive properly.
WARNING
!
575 VAC Input Current/Wire Gage
Drive Input
Current
Maximum
AWG
Model
5.0
10
C4.6
6.0
10
C6.6
7.0
10
C7.5
10.0
10
C11
16.0
10
C17
23.0
6
C24
30.0
6
C31
46.0
6
C46
59.2
2
C59
74.8
2
C75
88.0
0
C88
101.3
1/0
C114
126.6
3/0
C143
149.9
4/0
C169
Drive Input
Current
Maximum
AW G
Model
2.5
6
J2.7
3.0
6
J3.9
6.0
6
J6.1
9.0
6
J9.0
10.0
6
J11
16.7
6
J17
21.6
6
J22
26.6
6
J27
31.5
6
J32
40.3
2
J41
51.2
2
J52
61.0
0
J62
