Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 655)

Section 13A
Connecting 8520 Digital Drive Systems
13A-21
After determining system shunt requirements, terminal block (BT2) on
each of the 8520 digital amplifiers should be jumpered for either an
internal shunt resistor or an external shunt resistor.
Figure 13A.10 and Figure 13A.11 illustrate this procedure.
Figure 13A.10
Shunt Resistor Connections for 2AX-D Servo Amplifiers
External shunt
resistor
Fuse
To internal
shunt resistor
To internal
shunt resistor
INT
INT
EXT
INT/
EXT EXT
INT/
EXT
Contacts
(minimum 4 contacts in series)
EXT
EXT
TB2
TB2
Using External Shunt Resistor Using Internal Shunt Resistor
11288-I
Contacts
(minimum 4 contacts in series)
Figure 13A.11
Shunt Resistor Connections for 1AX-D and 3AX-D Servo Amplifiers
Using External Shunt Resistor
Using Internal Shunt Resistor External shunt
resistor
Fuse
Internal shunt
resistor
Internal shunt
resistor
TB2 TB2
EXT EXT Shunt Shunt
11289-I
Contacts
(minimum 4 contacts in series)
Contacts
(minimum 4 contacts in series)