Weidmuller PMX420 Series User manual

PMX420-SERIE 61001099/00/01.08

Bedienungsanleitung

4-stellige Strom-/Spannungsanzeige 3

Operating instructions

4-digit current/voltage display 16

Mode d'emploi

Indicateur de courant/

tension à 4 caractères 27

Istruzioni per l'uso

Indicatore di corrente/

di tensione a 4 cifre 40

Instrucciones de empleo

Indicador de intensidad/

tensión de 4 dígitos 52

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en PMX420 SERIES

Inhaltsverzeichnis

Operation 17

Installation 19

Connections 20

Instrument Setup 22

Input Calibration 24

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en PMX420 SERIES

• Operation

The PMX420 is a panel mount, digit indicator for current or voltage

signals. It shows the input measurement in any chosen engineering

unit using bright, 14 mm high, LED digits. The PMXPlus is fitted

with four alarm channels and analogue output for more complex

applications.

Reviewing the setup

For review mode, press the PGM and ENT keys simultaneously.

Press the Åkey to move through the setup sequence (see table).

Greyed items are not shown in review mode.

Note: A 10 s timeout applies for review mode.

Current/Voltage

Analogue Output

(PMX420 Plus Only)

Alarm 3

Alarm 4

Alarm 1

Alarm 2 (PMX420 Plus Only)

Power

Supply

Engineering Units

24Vdc (Out)

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Maximum/Minimum recall function

PGM and Årecalls the minimum value for 5 s. PGM and ìrecalls the

minimum value for 5 s. Release the PGM key first for reliable operation.

To reset either value press ENT while it is still on display.

Clearing tripped alarms

You can acknowledge a tripped alarm by simply pressing the key for

that channel.

Siren and Group alarms

Channel four has two additional alarm types:

• Siren alarm, which you clear by acknowledging all tripped alarms

• Group alarm, which will only clear when you have acknowledged

all tripped alarms

and

all the trip conditions have cleared (and are

outside the deadband)

Displaying the alarm setpoints

To check a setpoint, simply press the key for that alarm.

If the display shows A4=S or A4=g when you press the alarm channel

four button, you know it is set up as a siren or group alarm.

Adjusting the alarm setpoints

To change a setpoint, press the PGM key while the value is still on

display. You will then be able to change the value using the arrows and

save the change using the ENT key. Note that setpoint security must

disabled for this to work.

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• Installation

Caution: In order to meet product safety requirements, these units

must only be installed, by qualified staff, in accordance with the

information given in this manual, using the mounting clips and terminal

blocks supplied, and all relevant national electrical wiring and safety

rules must be followed.

Locate the instrument in an area that is free from dust, moisture and

corrosive gases. Do not cover the ventilation holes at the side of the

case.

Sensor power supply

The 0 V rail of the 24 V DC sensor supply is internally connected to the

input circuit 0 V rail.

Input signal cable

Twisted pair cable should be used for the input signals. Voltage signals

need the additional protection of shielded cable if used over any

distance.

Power Supply Requirements

Check the power supply against the model number before applying

power to the instrument.

Connections

For effective protection from electromagnetic noise, all signal cables

must be shielded, or located on conductive trays or in conduits.

Use 12-28 AWG Cu Wire rated for temperatures above 70 °C Only,

tighten to 4.5 lb-In. Strip wires to 7 mm from the ends. Use a suitable

ferrule for multistranded wires (do not solder).

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• Connections

Terminal Signal

1Not Used

3 Live (+) Low voltage

power supply

12-50 V AC or

18-35 V DC

4 Neutral (−)

5 Sensor supply + / Security Link

Inputs

6 Security Link

7 Voltage Input +

8 Current Input +

9 Input − / 0 V

10 Not connected

11 Normally Open

Alarm Channel One

(PMX420Plus only)

12 Common

13 Normally Closed

14 Normally Open

Alarm Channel Two

(PMX420Plus only)

15 Common

16 Normally Closed

17 Normally Open Alarm Channel Three

(PMX420Plus only)

18 Common

19 Normally Open Alarm Channel Four

(PMX420Plus only)

20 Common

21 Output + Analogue output

(PMX420Plus only)

22 Output −

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+ -

Other

receiving

device/s

PMX420AP

(current inputs)

- +

Device with

voltage outputs

PMX420AP

(voltage inputs)

9 7

2-wire

(loop powered)

Transmitter

Other

receiving

device/s

PMX420AP

(current inputs)

Device with

current outputs

Typical Connections

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• Instrument Setup

For setup mode, connect the security link and press PGM and ENT keys

simultaneously. The software version will be displayed. If you wish to

continue, press ENT within 10 s.

Setting Display Description Å ì ENT

S/W Version v1.01 S/W Version 1.01 (Note: this information only applies to versions

1.00 to 1.09)

Display and Inputs

Display

Brightness

LOBr

HIBr

Low brightness

High brightness Toggle Accept

Input format

IP=1

IP=E

Current (mA)

Voltage (V) Toggle Accept

IPL=

4.00

Input range lower limit

e.g., 4.00 mA

Dec

Inc

IPH=

20.00

Input range upper limit

e.g., 20.00 mA

Dec

Inc

Damping factor dF=

Introduces the damping factor

Value, e.g., 2

Dec

Inc

Linearisation LInr

Linear

Square root Toggle Accept

Display range

dP=

.Decimal point position -

Shift

dLO=

0.0

Display range lower limit

e.g., 0.0

Dec

Inc

dHI=

100.0

Display range Upper limit

e.g., 100.0

Dec

Inc

Analogue outputs*

Analogue output

select

AOPY

AOPN

Enabled

Disabled (Select this option for PMX420) Toggle Accept

Analogue output

range

OPL=

4.00

Output low value

e.g., 4.00

Dec

Inc

OPH=

20.00

Output high value

e.g., 20.00

Dec

Inc

Note: if you change the output range you must calibrate the outputs.

Output action OP=d

OP=r

Direct

Reversed Toggle Accept

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General Alarm settings*

Alarms 1 & 2

Select

A12Y

A12n

Enable

Disable (Select this option for PMX420) Toggle Accept

Alarms 3 & 4

Select

A34Y

A34n

Enable

Disable (Select this option for PMX420) Toggle Accept

Setpoint

security

SECy

SECn

Setpoints ﬁxed at setup

Can change setpoints Toggle Accept

Alarm reset

sequence

nOr

rES

Automatic reset

Manual reset Toggle Accept

Note: alarm settings are only shown if the relevant alarm channel is enabled.

Alarm channel one settings*

Coil energisation A1nE

A1nd

Normally energised

Normally de-energised Toggle Accept

Alarm type A1=L

A1=H

Low type (active below setpoint)

High type (active above setpoint) Toggle Accept

Setpoint value SP1=

50.00

Setpoint value

e.g., 50.00 %

Dec

Inc

Deadband value db1=

0.01

Deadband value

e.g., 0.01 %

Dec

Inc

Timer delay dL1=

Timer delay (set to 0 s to disable)

e.g., 20 s

Dec

Inc

Alarm channel two settings*

As alarm channel one, except uses A2nE, A2nd, A2=L,A2=H, SP2=, db 2= and dL2=.

Alarm channel three settings*

As alarm channel one, except uses A3n E, A3nd, A3=L,A3=H, SP3=, db3= and dL3=.

Alarm channel four settings*

Coil energisation A4nE

A4nd

Normally energised

Normally de-energised Toggle Accept

Alarm type

A4=L

A4=H

A4=G

A4=S

Low type (active below setpoint)

High type (active above setpoint)

Group alarm

Siren alarm (manual reset mode only)

Toggle Accept

Note: for group or siren alarms, the setpoint, deadband and timer settings are skipped

Setpoint value SP1=

50.00

Setpoint value

e.g., 50.00 %

Dec

Inc

Deadband value db1=

10.00

Deadband value

e.g., 10 %

Dec

Inc

Instrument Setup (continued)

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Timer delay dL1=

Timer delay (set to 0 s to disable)

e.g., no delay

Dec

Inc

Calibration options

Calibrate

Input?

CIPn

CIPy

Skip input calibration

Calibrate inputs Toggle Accept

Calibrate

Output?

COPn

COPy

Skip output calibration

Calibrate outputs Toggle Accept

Save values SAVE Instrument is saving the changes to the setup and returning to normal

operation

*Note: Alarms and Analogue outputs are ﬁtted to the PMX420Plus only. You can still set values for the

alarms and analogue output on the PMX420 but they will only affect the display and status leds.

During setup the Åand ìkeys change values and toggle options.

The ENT key accepts changes and moves to the next item in the setup

sequence (see table).

Note: if you remove the security link during the setup sequence, any

changes you have made will not be saved.

• Input Calibration

General

The PMX420 series instruments are factory calibrated. You can change

the input range without calibration, but the outputs are calibrated for

the specific range given during the setup procedure.

Equipment requirements

• A suitable current or voltage source

Terminal Connections for input calibration

Calibration Stage Signal type Terminal

Current (mA) inputs Milliamp source (+) 8

Milliamp source (−) 9

Voltage (V) inputs Voltage source (+) 7

Voltage source (−) 9

Instrument Setup (continued)

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