Rockwell Automation 8510 AC Spindle Drive System User Manual - Manual (Page 83)

Wiring
Chapter 8
8-79
Power Wiring AC Input Power To the 8510 Drive
AC line input terminals are located at the bottom of the drive as shown in
Figure 7.3. Input current requirements and wire size are dependent on the
motor kW rating and the AC line voltage. The following table defines the
drive AC line input current requirements at a nominal 220V AC line
voltage and at the low line voltage limit of 180V AC. Wire sizes are
selected per NFPA-79 and IEC-204 for wires in a cable or raceway and are
based on 75
°
C wire (70
°
C for IEC-204).
Table 8.D
AC line Input Current Requirements
Motor Power
(Cont. / 30 Min. kW)
2.2 / 3.7
3.7 / 5.5
5.5 / 7.5
7.5 / 11
11 / 15
15 / 18.5
18.5 / 22
22 / 30
at 220V AC
15A
22A
30A
42A
55A
65A
78A
100A
30 Minute Current Rating
at 180V AC
18A
27A
37A
51A
67A
79A
95A
122A
Wire Size 1,
2
(AWG / mm 2
)
12 / 2.5
10 / 4.0
8 / 6.0
8 / 10.0
6 / 16.0
4 / 25.0
3 / 25.0
2 / 35.0
1 AWG wire sizes are based on 220V AC, –10%, with 75
°
C wire. The mm 2 wire sizes are
based on 70
°
C wire. For other input voltages, select wire size according to local electrical
codes.
2 If 90
°
C wire is used, the wire sizes can be reduced about one wire size. Refer to the NEC
for proper wire sizing for higher temperature wire.
The 8510 does not include incoming AC line overcurrent protection. Either
current limiting fuses or a high speed circuit breaker must be installed
between the drive and the AC power source. Optional fuse kits that include
properly sized high speed, current limiting fuses and the appropriate fuse
block are available. The components supplied in the fuse kits are defined in
Table 8.E.
Table 8.E
Recommended AC Line Fuses
Fuse Kit
Catalog
Number
8510SA-FA04
8510SA-FA06
8510SA-FA11
8510SA-FA22
Bussmann
JKS40
JKS60
JKS100
JKS175
Fuse Type (Qty. 3)
Gould
Shawmut
A4J40
A4J60
A4J100
A4J175
for use
with Drive
Model
8510A-A04-x
1
8510A-A06-x
1
8510A-A11-x
2
8510A-A22-x
2
Bussmann
J60060-3C
R
J60060-3C
R
J60100-3C
R
J60200-1C
R (Qty. 3)
Fuse Holder
Gould
Shawmut
60608J
60608J
61008J
62003J
The recommended AC input power connection is shown in Figure 8.2. If
an autotransformer or isolation transformer is used, follow the connection
diagram supplied with the transformer to determine proper wiring to the
drive.