Rockwell Automation 1403-DMA-DMB User Manual

Instruction Sheet

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(Cat. No. 1403-DMA or 1403-DMB)

Figure 1. Display Module

Description

The microprocessor based Bulletin 1403 Display
Module, an optional input device, can be used to set up
and configure the Bulletin 1403 Master Module for
operation. This is accomplished through the Display
Module’s front panel which includes four tactile operator
buttons and a liquid crystal display. All communications
between the Display Module and Master Module is
conducted over a serial fiber optic link.

Installation and Orientation The Display Module can be
oriented in any position. The most typical orientation is
shown in Bulletin 1403 Powermonitor II Instruction
Sheet, Publication 1403–5.0, Figure B.1, Appendix B.
The Display Module is designed to fit into the protective
enclosure cutout with a minimum installation depth of

50.8 mm (2.0 in.) behind the mounting panel as shown in

Bulletin 1403 Powermonitor II Instruction Sheet,
Publication 1403–5.0, Figure B.2, Appendix B. The

recommended Display Module mounting hole pattern
and dimensions are defined in Bulletin 1403

Powermonitor II Instruction Sheet, Publication
1403–5.0, Figure B.3, Appendix B. Ensure that the

gasket provided is not contaminated with foreign matter
and is installed in the Display Module correctly. Install
the Display Module into the protective enclosure’s front
panel using the four M4 nut/lockwasher assemblies as
shown in Bulletin 1403 Powermonitor II Instruction
Sheet, Publication 1403–5.0, Figure B.4, in Appendix B.
Tighten the M4 nut/lockwasher assemblies to 0.9 to 1.1
Nm (8 to 10 lb-in.) Note: Eight flat washers are
provided for retrofit applications with larger hole sizes.

ATTENTION: Failure to comply with
these mounting requirements may cause

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damage to the Display Module or
compromise the IP65 [NEMA/UL 508,
T ype 4X (Indoor)] degree of protection
per International Standard IEC 529.

Mounting of Display Module

Protective Enclosure A suitable enclosure should be

used to protect the Master Module from atmospheric
contaminants such as oil, moisture, dust, and corrosive
vapors or other harmful airborne substances. The
Display Module’ s gasketed front panel interface to the
protective enclosure is rated as an IP65 degree of
protection [National Electrical Manufacturer’s
Association (NEMA)/Underwriter’s Laboratories (UL)
508, T ype 4X (Indoor)] per International Standard IEC

529.

Wiring of Display Module

Power The Display Module can be operated on either

AC or DC power. Two models have been developed to
operate on various AC/DC voltage ranges as defined in
T able A. A single, three-position connector is provided
for all power connections to the Display Module.

Publication 1403-5.2 – September 1996

Bulletin 1403 Powermonitor II Display Module2

Table A. Voltage Ratings

Cat. No./

Voltage Range

1403-DMA/High

Voltage

1403-DMB/Low

Voltage

AC Voltages/DC Voltages

(+10% to –20%)

120V/ 240V AC 50/60 Hz or 125V/250V DC

12V/24V AC or 12/24/48V DC

Terminal Block Wire Sizes and Screw T orque Values All
terminal block wire sizes and terminal block screw
torque values are shown in Bulletin 1403 Powermonitor
II Instruction Sheet, Publication 1403–5.0, Appendix C.

Fiber Optics The Powermonitor II communications
architecture consists of a fiber optic ring between the
Bulletin 1403 Master Module and up to three Display
Modules. The black transmitter component (TX) of a
unit must be connected to the blue receiver (RX)
component of the next unit and repeated for each
additional module until the ring is completed. Figure 2
shows a typical layout of the fiber optic cabling between
one Master Module and three Display Modules. Fiber
optic cable assembly specifications are given in T able B.

Table B. Fiber Optic Cable Assembly Specifications

Parameter

Cable Length:
Distance between two
adjacent devices

Minimum inside bend
radius

Minimum Cable

Length

25 cm (approx. 10 in.)
shortest Allen-Bradley
standard

25.4 mm (1 in.) Any
bends with a shorter
inside radius can
permanently damage
the fiber optic cable.
Signal attenuation
increases with
decreased inside
bend radii.

ATTENTION: Any bend in a fiber optic
cable assembly with an inside radius of

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less than 25.4 mm (1 in.) may
permanently damage the fiber optic cable
assembly.

Maximum

Cable

Length

500 m
(1650 ft.)

N/A

Important: Always maintain furnished rubber plugs in

the transmitter and receiver when cable
end connectors are not in place. This will
help prevent dirt from contaminating the
transmitter or receiver.

Figure 2. Fiber Optic Communications between a Bulletin 1403
Master Module and Three Display Modules

Publication 1403-5.2 – September 1996