Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 645)

Section 13A
Connecting 8520 Digital Drive Systems
13A-11
Table 13A.P
3AX-D Servo Amplifier Terminal Block TB4 Terminal Assignments
Term. No. Connection
1 TSW1-1 (For Motor 1)
2 TSW1-2 (For Motor 1)
3 TSW2-1 (For Motor 2)
4 TSW2-2 (For Motor 2)
5 TSW3-1 (For Motor 3)
6 TSW3-2 (For Motor 3)
Important: Terminal block TB4 is an optional connector that provides a
convenient connection to the thermal overload switches of the servo
amplifier. This terminal block is typically used to interface the thermal
overload switches with PAL or the system E-STOP string. The servo
amplifier operates normally without any external connections to terminal
block TB4.
This section gives you the information you need to determine which A-B
1389 transformer to use with your application. Its also gives the
dimensions of each type of A-B 1389 transformer.
Important: The 9/230, 9/260, and 9/290 8520 digital servo amplifier is
compatible only with an Allen-Bradley 1389 transformer.
Table 13A.A provides the formulas you need to size the type of
transformer for the application.
13A.3
Selecting an A-B 1389
Transformer for 8520 Digital
Servo Amplifiers