Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set User Manual
Page 91
Section 3A
Primary 9/230 Components
3A-8
Output Specifications
The 8520-PS2A main power supply output specifications are shown in
Table 3A.D. For input specifications and fuse specifications refer to
page 13A-22. The power supply shuts down if the 2A limit on the
customer 24V supply is exceeded. This causes the control to shut off. You
must provide protection for this circuit if you do not want this auto-shut
down feature to activate.
Table 3A.D
8520-PS2A Main Power Supply Output Specifications
Item
Specifications
Remark
Rated Outputs
+5.30V dc (10A) @ 50
°
C
(8A) @ 60
°
C)
+15V dc (.75A) @ 50
°
C
(.2A) @ 60
°
C
-15V dc (-.75A) @ 50
°
C
(.2A) @ 60
°
C
+24V dc (2.0A) @ 50
°
C
(2.0A) @ 60
°
C
Total of 130 Watts @ 50
°
C,
96.4 Watts @ 60
°
C with
convection cooling, or 130
Watts @ 60
°
C with minimum
of 25 CFM
Line Monitor
----
Detects Loss of AC Power
Hold Up Time
6 msec
@ 130 Watts
The 9/230 analog control can be purchased as either a three axis controller
or as a single axis controller. Both the single and three axis configurations
have an additional open loop analog spindle output terminal.
A separate analog servo amplifier amplifies the signal from the 9/230
processor to deliver the power necessary to drive the servo motors. Refer
to appendix D for analog drive options.
Position and velocity data are read from a feedback device that is mounted
on the slide, ballscrew, or servo motor. This feedback device generates
differential signals that are then fed to the processor. If the spindle motor
incorporates an encoder (closed loop) it will supply spindle position
feedback to the processor module. If you require a closed loop spindle you
must connect the spindle drive to the last available axis connector (no
closed loop spindle port is available on the single axis 9/230).
Most analog servo drive amplifiers require some form of velocity feedback
from the servo motor. This feedback is usually generated by a tachometer
or resolver attached to the motor shaft. Refer to your servo drive amplifier
literature for details.
3A.2
Servo Axis Connectors on
the 9/230 Analog