Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 642)

Section 13A
Connecting 8520 Digital Drive Systems
13A-8
Table 13A.I
2AX-D Servo Amplifier Terminal Block TB3 Terminal Assignments
Term. No. Connection
1 SYSTEM READY (Contact Output)
2 SYSTEM READY (Contact Input)
Typically TB3 is used as a relay in your E-STOP string. Terminal 1 and
Terminal 2 is an open connection when the drive is in a fault condition and
a closed connection when the drive is operating correctly.
Table 13A.J
System Ready Contact Ratings
DC AC
up to 24V max.
up to 1.4 A
up to 30 Watts max.
up to 230V max.
up to 1.4 A
up to 30 Watts max.
Table 13A.K
2AX-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)
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.