AMALGAMATED INSTRUMENT PM4-BC Guía

Model PM4-BC

Binary/BCD/Gray Code

Panel Mount Display/Controller

Operation and Instruction Manual

AMALGAMATED INSTRUMENT CO ABN: 80 619 963 692

Unit 5, 28 Leighton Place Hornsby Telephone: +61 2 9476 2244 e-mail: [email protected]

NSW 2077 Australia Facsimile: +61 2 9476 2902 Internet: www.aicpl.com.au

Table of Contents

1 Introduction 3

2 Mechanical Installation 4

3 Electrical installation 5

4 Function tables - summary of setup functions 16

5 Explanation of functions 19

6 Scaled inputs 35

7 Weighted input operation 37

8 Speciﬁcations 39

9 Guarantee and service 40

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1 Introduction

1.1 General description

This manual contains information for the installation and operation of the PM4-BC Monitor. The

PM4 is a general purpose instrument which may be conﬁgured to accept inputs of:

Binary (SEt INPt function 5.27 set to bin)

BCD (SEt INPt function 5.27 set to bcd)

Gray code (SEt INPt function 5.27 set to GRAY)

Weighted binary (SEt INPt function 5.27 set to d.inP)

Scaled binary, BCD or Gray code (see USER SCLE function 5.36)

The inputs may be presented in parallel, strobed or addressed form. Twenty input lines plus two

GND lines are available. For BCD inputs, addressed, strobed or up to 4 digit parallel four of these

input lines can be allocated for use as remote decimal point or display hold.

Optional relays, serial communications, analog or digital retransmission may also be provided.

The PM4 series of Panel Mount Monitors are designed for high reliability in industrial applications.

The high brightness LED display provides good visibility even in areas with high ambient light

levels. The high contrast LCD displays provide good visibility and are ideal for battery powered

applications.

Full electrical isolation between power supply, input signals and retransmission output is provided

by the PM4, thereby eliminating grounding and common voltage problems. This isolation feature

makes the PM4 ideal for interfacing to computers, PLCs and other data acquisition devices. Note

that the input signals themselves share a common ground.

Unless otherwise speciﬁed at the time of order, your PM4 has been factory set to a standard

conﬁguration. The PM4 series instruments can be conﬁguration and calibrated easily by the user.

Initial changes may require dismantling the instrument to alter PCB links, other changes are made

by push button functions.

1.2 Output options

•1, 3 or 6 optional relays rated 240VAC 5A (resistive load)

•Isolated analog retransmission conﬁgurable for 4–20mA, 0–1V or 0–10V

•Isolated RS485 or RS232 serial communications (ASCII or Modbus RTU)

•Isolated Digital output - binary or BCD up to 16 bit, NPN or PNP output types available

•Optional outputs are available in certain combinations only e.g. Extra relay plus RS232

PM4BCMAN-2.0-0 3 of 40

2 Mechanical Installation

Choose a mounting position as far away as possible from sources of electrical noise such as motors,

generators, ﬂuorescent lights, high voltage cables/bus bars etc. An IP65 or IP67 access cover which

may be installed on the panel and surrounds is available as an option to be used when mounting the

instrument in damp/dusty positions. A wall mount case is available, as an option, for situations

in which panel mounting is either not available or not appropriate. A portable carry case is also

available, as an option, for panel mount instruments.

Prepare a panel cut out of 45mm x 92mm +1 mm / – 0 mm (see diagram below). Insert the

instrument into the cut out from the front of the panel. From the rear of the instrument ﬁt the

two mounting brackets into the recess provided (see diagram below). Whilst holding the bracket

in place, tighten the securing screws being careful not to over-tighten, as this may damage the

instrument. Hint: use the elastic band provided to hold the mounting bracket in place whilst

tightening securing screws.

92mm

45mm PANEL CUT OUT 92mm

45mm

PANEL

CUT

OUT

115mm

104mm

53mm

44mm

96mm

9mm

9.5mm

max

48mm

91mm

111mm

10mm

Mounting bracket

(2 off)

Horizontal mounting

Vertical mounting

(bar graph displays)

4 of 40 PM4BCMAN-2.0-0

3 Electrical installation

3.1 Electrical installation

The PM4 Panel Meter is designed for continuous operation and no power switch is ﬁtted to the

unit. It is recommended that an external switch and fuse be provided to allow the unit to be

removed for servicing.

The plug in, screw type, terminal blocks allow for power supply wires of up to 2.5mm2to be

ﬁtted. Connect the wires to the appropriate terminals as indicated below. A 22 terminal plug

in data connector is provided which will accept up to 1mm2wires. To insert wires to this data

connector insert a screwdriver blade (max 2.5mm wide) into the square socket adjacent to the

terminal required, push the wire into the terminal and remove the screwdriver blade. The wire will

lock in place. See the “Weighted digital input operation and electrical connections” chapter page

37 for weighted digital input connections.

For connection details of optional outputs refer to the separate ”PM4 Panel Meter Optional Output

Addendum” booklet supplied when options are ﬁtted.

3.2 Instrument rear panel

PM4BCMAN-2.0-0 5 of 40

Instrument label (example)

3.3 Resistor pack and link locations

3.4 Electrical connection examples

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3.5 Parallel BCD input

PM4BCMAN-2.0-0 7 of 40

3.6 Strobed BCD input

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3.7 Addressed BCD input

PM4BCMAN-2.0-0 9 of 40

3.8 Parallel binary input (also used for Gray code)

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