Installation manual

Publication 1394-IN002B-EN-P — February 2004
Installing Your 1394 SERCOS Interface System 1-17
When mounting your shunt module inside the enclosure, follow these
additional guidelines (refer to Figure 1.10 and for an example).
• Metal-clad modules can be mounted anywhere in the dirty zone,
but as close to the 1394 as possible.
• Shunt power wires can be run with motor power cables.
• Keep unshielded wiring as short as possible. Keep shunt wiring as
flat to the cabinet as possible.
• Separate shunt power cables from other sensitive, low voltage
signal cables.
Figure 1.10
External Shunt Module Inside the Enclosure
Motor Brake and Thermal Switch
The thermal switch and brake are mounted inside the motor, but how
you connect to the axis module depends on the motor series. Refer to
Connecting Motor Power, Thermal Switch, and Brake in Chapter 3 for
wiring guidelines specific to your drive/motor combination. Refer to
Axis Module/Motor Interconnect Diagrams in Appendix B for the
interconnect diagram for your drive/motor combination.
C
C
D
D
VD
D
C
VD
Status
DANGER
RISK OF ELECTRICAL SHOCK. HIGH VOLTAGE MAY
EXIST UP TO FIVE MINUTES AFTER REMOVING POWER.
SERCOS System Module
1394 Digital Servo Controller
300W Shunt Module
BULLETIN 1394 300W SHUNT MODULE
ALLEN-BRADLEY
FOR USE WITH 1394-SJT22-X SYSTEM MODULE
CAT. PART SER.
INPUT DC INPUT AC
FOR FUSE REPLACEMENT USE:
BUSSMAN CAT. NO.
R
150 mm (6.0 in.) of clearance
on all sides of the
shunt module (minimum)
Enclosure
Enclosure
Dirty Wireway
Clean Wireway
Route 24V dc I/O
Shielded Cable
Route Encoder/Analog/Registration
Shielded Cable
24V Motor
Brake PS
Circuit
Breaker
XFMR
AC
Line Filter
DC
Filter
Contactors
1394 SERCOS interface System
I/O and
Feedback Cables
Shunt Power Wiring Methods:
Twisted pair in conduit (1st choice)
Shielded twisted pair (2nd choice)
Twisted pair, 2 twists per foot min. (3rd choice)
Shunt thermal switch and
fan wires (when exist)
Very dirty shunt connections
segregated (not in wireway)