Rockwell Automation 1485 User Manual

Installation Instructions

Washdown Rating

1200 PSI (8270kPa) @ 60 C (140 F)

Bulletin 1485 PowerTap Connection

IMPORTANT: Power: 15.0 Amps maximum total current; 7.5 Amps each trunk at 25°C (1485T–P2T5–T5).

Power: 6.0 Amps maximum total current; 3.0 Amps each trunk at 25°C (1485T–P2T5–T5C).

ATTENTION: Under some conditions of load current and ambient temperature the fuse current value should be decreased. As shipped, the 1485T–P2T5–T5 PowerTap connection is fused to supply up to 7.5 Amps to one trunk line, the 1485T–P2T5–T5C 3.0 Amps.

Description

For power requirements on your DeviceNet network, Allen-Bradley is introducing its PowerTap connection. The PowerTap connection is a passive coupling device used to limit trunk current and is also used to permit the connection of multiple power supplies to the trunk without mutual interference.

Figure 1: PowerTap Connection Part Number: 1485T–P2T5–T5 and 1485T–P2T5–T5C

Dimensions—mm (inches)

(2.63)

DC Power Supply

Connection Terminals

Trunk Connection

Terminals

Specifications

Storage Temperature -40°C to +85°C (-40°F to 185°F)

Operating Temperature -25°C to +70°C max

Operating Humidity 5%-95% relative (noncondensing)

Washdown Rating

Housing Material Black polyester

Note: In class II applications the fuses are used as a means for isolating network segments. For more information refer to DeviceNet Cable Installation Guide.

(3.87)

1200 PSI (8270kPa) @ 60_C (140_F) NEMA 3, 4x, 6P, 12 and 13

111.25

(4.38)

1485T-P2T5-T5-T5: Colors PG16 Cable Grips

1485T-P2T5-T5C-T5C: Colors PG9 Cable Grips

Enclosure

Figure 2: Wiring Diagram

Power Requirements: 24V DC 1% @

7.5 Amp Fast Blow Automotive Type Fuse in each Trunk +24V DC Leg

(Littlefuse model 297 07.5 or similar)

Power Requirements: 24V DC 1% @

3.0 Amp Fast Blow Automotive Type Fuse in each Trunk +24V DC Leg

(Littlefuse model 297 03 or similar)

1485T–P2T5–T5:

15.0 Amp (maximum)

1485T–P2T5–T5C:

6.0 Amp (maximum)

1485T-P2T5-T5 Mini Type Fuse, 7.5A Max. 1485T-P2T5-T5C Mini Type Fuse, 3.0A Max.

98.04 (3.86)

Black

Drain

Red

Black

Red

White

Blue

Drain

Blue

White

Black

Red

Terminal Block for

Power Supply Connection

PCB

Terminal Block for

Trunk Connections

6.6

(0.26)

Note: Red +24V

White CAN Hi Blue CAN Lo Black Common

Figure 3: Cable Stripping Installation for PowerTap Connection

5/16

Dimension A"

runk Cable 4 inches

Figure 4:

Input from

Power Supply

Cable Jacket

End of Cable Jacket Should

Protrude Approx. 1/8 in.

Loosened

Gland Nut

Hex Flange

Locking Nut

1. To install trunk cable into PowerTap connection cut and strip gray PVC cable back approximately 4 inches (see Figure 3) and insert through large cable gland. Note: Trunk cable used for input from power supply should have white and blue leads cut off short.

2. Loosen gland nut and insert cable until approximately 1/8 inch of cable jacket protrudes.

3. Firmly tighten gland nut to provide strain relief and sealing. Caution: The hex flange must be held with the cable gland wrench during tightening.

4. Bare wire ends should be firmly twisted to eliminate loose strands and each lead looped approximately as shown, to allow insertion into the clamping cavity of the terminal block. (See Figure 2 for color codes.)

Tightened Gland Nut

Align Wire End with Clamping

Cavity of Terminal Block

ATTENTION: Be certain to use insulating tubing (included in accessory kit) on bare drain wire.

5. To attach cable to terminal strips, press down on cage clamp, insert wire and release cage clamp. Repeat process for remaining wires.

6. After all cables are terminated, the cover should be installed and securely tightened to ensure washdown rating.

All external wiring must conform to national electric code and local codes.

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http://www.ab.com/sensors

Publication 75006–280–01(B)

September 2000

Printed in USA