There are three types of cable that can be used to connect the 1394 shunt module to your 1394 system module. All shunt power wiring should meet the following general specifications:
• 8 AWG (8.4 mm2) • 105° C
• 600V
• Maximum length of each wire is 3.05 m (10 ft.).
• If you mount the shunt module outside the cabinet, the shunt power cables and fan wiring must be inside metal conduit to minimize the levels of EMI and RFI.
To minimize the levels of EMI and RFI inside your cabinet, we recommend you:
• Use a single cable that contains a twisted pair with an overall shield. The shunt module is designed to accept a metal conduit which will also act as an overall shield.
• Route your shunt power cables with motor power cables. • Separate shunt power cables from other sensitive, low voltage
signal lines.
The table below details your shunt power wiring options.
To connect the shunt module to the 22 kW system module:
1. Verify that there is no 24V control or 360/480V power applied to the system.
2. Open the front door of the system module.
3. Insert one end of one user-supplied 8.4 mm2 (8 AWG), 105° C (221° F), 600V, shielded wire in the terminal block labeled COL. 4. Insert one end of the other user-supplied 8.4 mm2 (8 AWG),
105° C (221° F), 600V, shielded wire in the terminal block labeled DC +.
5. Tighten both screw terminals (torque = 2.5 N-m, 22.1 lb-in.). 6. Gently pull on each wire to make sure it does not come out of its
terminal. Re-insert and tighten any loose wires.
For this Type of Cable: Twist Conductors (Y/N):
Twisted pair with overall shield N
Twisted pair (no shield) N
Discrete conductors1 Y (2 twists per foot)
1 Twisting cancels most of the RFI noise for the two conductors. Refer to Figure 3.18 and Figure 3.19 for
Figure 3.18
Routing Shunt Module Wiring When the Module is Outside the Cabinet
!
ATTENTION: The resistors inside the 1394 shunt module can reach temperatures in excess of 350° C (662° F). Be sure to provide appropriate guarding to avoid hazard of shock or burn and ignition of flammable material. Install per local codes.
Status Status
Low voltage Communications Control I/O wiring Motor feedback cables
360/480V AC power
Always separate all low voltage signal wiring from high voltage power wiring to
reduce affects of EMI and RFI.
Motor power cables Customer-supplied
metal enclosure (optional)
Metal conduit 155 mm (6.1 in.) of
clearance on all sides of the shunt module minimum
Twisted conductors (2 twists per foot) min. or a shielded twisted pair
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 DCINPUT AC FOR FUSE REPLACEMENT USE: BUSSMAN CAT. NO.
R
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
8 AWG (8.4 mm2),
105 C, 600V wire Max. Length 3.05 m (10 ft) for each wire
Shielding is recommended for reducing the effects of EMI and RFI.
DANGER
RISK OF ELECTRICAL SHOCK. HIGH VOLTAGE MAY EXIST UP TO FIVE MINUTES AFTER REMOVING POWER.
DANGER
RISK OF ELECTRICAL SHOCK. HIGH VOLTAGE MAY EXIST UP TO FIVE MINUTES AFTER REMOVING POWER.
Figure 3.19
Routing Shunt Module Wiring When Module is Inside the Cabinet
7. Open the front door of the shunt module.
8. Insert the wire from the system module terminal block labeled COL in the top terminal on the left side of the shunt module. Refer to Figure 3.20 for the terminal’s location.
9. Insert the wire from the system module terminal block labeled DC+ in the bottom terminal on the left side of the shunt module. Refer to Figure 3.20 for the terminal’s location.
!
ATTENTION: To avoid burn hazard and ignition of flammable material, be sure to provide appropriate guarding. The resistors inside the 1394 shunt module can reach temperatures in excess of 350° C (662° F). Install per local codes.
Status
Low voltage Communications Control I/O wiring Motor feedback cables
360/480V AC power
Always separate all low voltage signal wiring from high voltage power wiring to
reduce affects of EMI and RFI.
Motor power cables
155 mm (6.1 in.) of clearance on all sides of the shunt module minimum
Use twisted conductors (2 twists per foot) min. or a shielded twisted pair.
8 AWG (8.4 mm2),
105 C, 600V wire Max. Length 3.05 m (10 ft) for each wire
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 DCINPUT AC FOR FUSE REPLACEMENT USE: BUSSMAN CAT. NO.
R
Shielding is recommended for reducing the effects of EMI and RFI. DANGER
RISK OF ELECTRICAL SHOCK. HIGH VOLTAGE MAY EXIST UP TO FIVE MINUTES AFTER REMOVING POWER.
Figure 3.20
Terminating Wires at the Shunt Module
10. Tighten both screw terminals (torque = 2.5 N-m, 22.1 lb-in.). 11. Gently pull on each wire to make sure it does not come out of its
terminal. Re-insert and tighten each loose wire. 12.
Connected to COL on the 22 kW System Module
Connected to DC + on the 22 kW System Module
If your shunt module: Then:
Has a Fan Go to Wiring the Shunt
Module Fan Power.