Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 184)

Section 4B
Connecting the 3-axis Servo Module
4B-38
Axes are connected to the D-shell connectors marked J1, J2, and J3. Axes
must be connected consecutively with no empty connections between axes.
For example, an axis may not be connected to the connector J3 unless both
J1 and J2 are used. If two servo modules are used, all three axes on the
first servo module must be connected before an axis may be configured on
the second servo module.
If a spindle with feedback is configured the spindle must be connected to
the first available D-Shell connector after the last connector used by a
linear or rotary axis.
ATTENTION: Do not insert the plug-type ANALOG OUT
terminal block (TB2) into an encoder termination panel DRIVE
terminal block or vice versa. Although these plugs will fit
together, pin assignments are different. Switching these
connections without rewiring the plug-type terminal block may
cause damage to equipment.
For example to configure a four axis system with a spindle with feedback
two servo modules are necessary. The first three axes must be connected
to the three D shell connectors on the first servo board. The fourth axis
must connect to the second servo board connector labeled J1. The spindle
with feedback must then be connected to the D shell labeled J2 on the
second servo board. For this specific application the spindle may not be
attached to the first servo board or J3 of the second servo board.
The analog servo module is equipped with a set of four LEDs located on
the front of the servo module. Table 4B.J lists the meaning of these LEDs.
Table 4B.J
Analog Servo Module LED Indicators
LED Color Description
RUN/FLT Green Indicates the servo processor OK when lit. Watch dog has failed or
power fault has occurred when LED is not lit.
FBFLT 1 Red Indicates the servo module is not receiving feedback, or is receiving
interrupted or irregular feedback from the feedback device on J1 when
lit.
FBFLT 2 Red Indicates the servo module is not receiving feedback, or is receiving
interrupted or irregular feedback from the feedback device on J2 when
lit.
FBFLT3 Red Indicates the servo module is not receiving feedback, or is receiving
interrupted or irregular feedback from the feedback device on J3 when
lit.
4B.6.4
Connecting Axes to Analog
Servo Module
4B.6.5
Analog Servo Module LED
Indicators