Rockwell Automation 1391ES AC Servo Controller - Manual (Page 44)

Installation
Chapter 6
6-42
Motor Feedback Wiring
Connections to the integral commutation resolver must be made using an
Allen-Bradley 1326-CFUxx shielded cable.
ATTENTION: To guard against hazard of personal injury or
damage to equipment, the interconnections to the motor and
resolver must be made exactly as shown in Appendix B. Failure
to do so could cause loss of motor control and/or severe
oscillation of the motor shaft.
!
Encoder (A Quad B Board) Wiring
Recommended Wire – Belden #9728 or equivalent. Maximum distance
between the A Quad B Board and the position controller is 40 feet (12.2
meters) using a 5 volt signal. For distances up to 300 feet (91 meters), 18
AWG wire (0.8 mm
2 ) and an 8 to 15V DC power supply must be used.
For proper operation when interconnecting to IMC products, the B and B
(NOT) signals must be reversed.
When interfacing to IMC 121 or 123 controllers, use the 1391-CAQB
cable. Refer to Chapter 5 for further information.
Transformer Wiring
The transformer secondary (230V AC, three-phase) connection to the
controller is phase insensitive and is shown in Appendix B. The maximum
wire size TB5 will accept is 8 AWG (8.4 mm
2 ). Refer to Chapter 9 for the
transformer wiring diagrams.
The minimum recommended wire sizes for the transformer secondary are
listed below.
Table 6.B
Minimum Transformer Wire Sizes
Input Voltage
208V AC
240V AC
380V AC
415V AC
480V AC
575V AC
1.5
#12 (3.3)
#12 (3.3)
#12 (3.3)
#12 (3.3)
#12 (3.3)
#12 (3.3)
3.5
#12
(3.3)
#12
(3.3)
#12
(3.3)
#12
(3.3)
#12
(3.3)
#12
(3.3)
5.0
#12
(3.3)
#12
(3.3)
#12
(3.3)
#12
(3.3)
#12
(3.3)
#12
(3.3)
10.0
#8 (8.4)
#8 (8.4)
#10
(5.3)
#12
(3.3)
#12
(3.3)
#12
(3.3)
12.5
#8 (8.4)
#8 (8.4)
#10
(5.3)
#10
(5.3)
#10
(5.3)
#12
(3.3)
15.0
#6 (8.4)
#8 (8.4)
#8 (8.4)
#10 (5.3)
#10 (5.3)
#10 (5.3)
kVA
Important: All wire sizes are AWG (mm 2 ). The transformer primary
requires protection by means of a customer supplied branch circuit
disconnect device. Refer to Appendix B.