Rockwell-automation 1391ES AC Servo Controller User Manual download pdf (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

) 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

). 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)

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)

#10

(5.3)

#12

(3.3)

#12

(3.3)

#12

(3.3)

12.5

#8 (8.4)

#10

(5.3)

#10

(5.3)

#10

(5.3)

#12

(3.3)

15.0

#6 (8.4)

#8 (8.4)

#10 (5.3)

kVA

Important: All wire sizes are AWG (mm

). The transformer primary

requires protection by means of a customer supplied branch circuit

disconnect device. Refer to Appendix B.

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Rockwell-automation 1391ES AC Servo Controller User Manual Page 44

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