Publication 2098-IN003E-EN-P — April 2004
Installing Your Ultra3000 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 Ultra3000 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 Resistor Inside the Enclosure
C
C
VD
D
D
VD
D
D
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
Motor
DC Bus
100-240 VAC
50/60 Hz
L1
AUX
L2/N
AUX
L2/N
L1
-
+
W
V
TB1
External
Shunt
3
2
1
Internal
TB2
U
Dirty Wireway
Clean Wireway
Motor Power Cable
Route Motor Power
Shielded Cable
Route Encoder/Analog/Registration
Shielded Cables
150 mm (6.0 in.) of
clearance on all sides
of the shunt module
minimum
Enclosure
24V
Power Supply
Circuit
Breaker
XFMR
AC
Line Filter
DC
Filter
Contactors
Ultra3000
Very dirty power connections
segregated (not in wireway)
Very dirty shunt connections
segregated (not in wireway).
Maximum Length: 3.05 m (10 ft).
Shunt Wiring Methods:
Twisted pair in conduit (1st choice).
Shielded twisted pair (2nd choice).
Twisted pair, 2 twists per foot min. (3rd choice).
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