Rockwell Automation 8520 9/Series Hardware TAB 5 - Manual (Page 60)

Section 5A
9/440 Resolver–based CNC/Drive System
5A-58
TB2
Axis module 1 TB2
Axis module 2 TB2
Axis module 3 TB2
Axis module 4
User Brake
Control User Brake
Control User Brake
Control
User Brake
Control
Thermal
String
(connect to E–Stop String)
TB1
All Axis modules
6 4 5 9
Brake Thermostat
Motor
Axis Module
(applying 24V dc
releases brake)
!
ATTENTION: Brake control should not be directly
released by the E–Stop status relay (or your customer
supplied E–Stop control relay). Brakes should only be
released by the PAL logic when it has determined that the
9/440 resolver–based control is in full control of the servo
motors and the control is out of E–Stop. See the
description of the PAL flag $PFLT.15 for detail on how to
test drive status.
Determining Your Type of Input
Before you ground or wire your 1394 system, you must determine the type
of 360/480V input power you will be connecting to. The 1394 system is
designed to operate in both grounded and ungrounded environments.
Grounded Power Configuration
As shown in Figure 5A.44, the grounded power configuration allows you
to ground your 3–phase power at a neutral point. Each 1394 system
module has a factory–installed jumper configured for grounded power
distribution. If you determine that you have grounded power distribution
in your plant you do not need to modify your system. For detailed
information about 1394 grounded power configuration, refer to your 1394
Digital AC Multi-Axis Motion Control System Users Manual (publication
1394-5.0).