Weidmuller PMX420 Plus Operating Instructions Manual

de

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Bedienungsanleitung

4-stellige Strom-/Spannungsanzeige 3

en

Operating instructions

4-digit current/voltage display 16

fr

Mode d'emploi

Indicateur de courant/
tension à 4 caractères 27

it

Istruzioni per l'uso

Indicatore di corrente/
di tensione a 4 cifre 40

es

Instrucciones de empleo

Indicador de intensidad/
tensión de 4 dígitos 52

PMX420-SERIE 61001099/00/01.08

en

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PMX420 SERIES

Inhaltsverzeichnis

Operation 17
Installation 19
Connections 20
Instrument Setup 22
Input Calibration 24

en

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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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 Å key 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.

Maximum/Minimum recall function

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PGM and Å recalls the minimum value for 5 s. PGM and ì re

calls 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.

d Group alarms

Siren an

Channel four has two additional alarm types:

• Siren al

arm, which you clear by acknowledging all tripped alarms

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

and

all tripped alarms

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.

djustin

g the alarm setpoints

A

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.

• Installation

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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.

ower supply

Sensor p

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

gnal cable

Input si

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 Su

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.

U
tighten to 4.5 lb-In. Strip wires to 7 mm from the ends. Use a suitable
ferrule for multistranded wires (do not solder).

pply Requirements

se 12-28 AWG Cu Wir

e rated for temperatures above 70 °C Only,

• Connections

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Terminal S ignal

1

2

3 L

4 Neut ral (−)

5 Sensor supply + / Securit y Link

6 Security Link

7 V

8 Current Input +

9 I

10 Not connected

11 Normally O pen

12 Common

13 Normally C losed

14 Normally O pen

15 Common

16 Normally C losed

17 Normally O pen

18 Common

19 Normally O pen

20 Common

21 O

22 Outp ut −

Not U sed

ive (+)

oltage

nput −

utpu t +

Input +

/ 0 V

Low vo ltage
power suppl y

Inputs

Alar m Channel O ne
(PM X420Plus onl y)

Alar m Channel Two
(PM X420Plus onl y)

Alar m Channel T hree
(PM X420Plus onl y)

Alar m Channel F our
(PM X420Plus onl y)

Anal ogue output
(PM X420Plus onl y)

12-50 V AC or
18-35 V DC

+ -

Other

receiving

device/s

PMX420AP

(current inputs)

85

- +

Device with

voltage outputs

PMX420AP

(voltage inputs)

9 7

-+

2-wire

(loop powered)

Transmitter

-+

Other

receiving

device/s

PMX420AP

(current inputs)

98

-+

Device with

current outputs

Typical Connections

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• Instrument Setup

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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.

Sett ing Display Description

S/ W Version

Display and Inpu ts

Display
Brightness

Input format

Dampi ng factor

Linearisation

Display range

Analogue outputs*

Anal ogue output
selec t

Anal ogue output
range

Note: if you chan ge the output range you mus t calibrate the outp uts.

Outp ut action

S/ W Version 1.01 (N ote: this i nformati on only app lies to versions

v1.01

1.00 to 1.09)

Low bright ness

LOBr

High b rightnes s

HIBr

Current (m A)

IP=1

Voltage ( V)

IP=E
IPL=

IPH=

20.00

LInr

dLO=

dHI=

100.0

AOPY
AOPN

OPL=

OPH=

20.00

OP=d
OP=r

Input range lower limi t
e.g., 4 .00 mA

4.00

Input range upper limi t
e.g., 2 0.00 mA

Intr oduces the damping fa ctor

dF=

Value, e.g., 2

2

Linear
Square root

Sr

dP=

Decimal point po sition

.

Display range lo wer limit
e.g., 0 .0

0.0

Display range Upper limit
e.g., 10 0.0

Enabled
Disabled ( Select th is option for PMX420)

Outp ut low value
e.g., 4 .00

4.00

Outp ut high value
e.g., 2 0.00

Direct
Rever sed

Å ì

Toggle Accept

Toggle Accept

-

Dec- Inc

-

Dec- Inc

-

Dec- Inc

Toggle Accept

-

Dec- Inc

-

Dec- Inc

Toggle Accept

-

Dec- Inc

-

Dec- Inc

Toggle Accept

Shif t

ENT

Next

Accept

Next

Accept

Next

Accept

-

Next

Accept

Next

Accept

Next

Accept

Next

Accept

Next

Accept

Instrument Setup (continued)

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Gener al Alarm settings*

Alar ms 1 & 2
Select

Alar ms 3 & 4
Select

Setp oint
secur ity

Alar m reset
seque nce

Note: alar m settings are only s hown if the relevant alarm channel is enabled.

annel one settings*

Alarm ch

Coil energisat ion

Alar m type

Setp oint value

Deadb and value

Timer delay

Alarm channel t wo settings*

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

annel three se ttings*

Alarm ch

As alarm ch annel one, except uses A3nE, A3nd, A3= L,A3=H, SP 3=, db3= and dL 3=.

annel four set tings*

Alarm ch

Coil energisat ion

Alar m type

Note: for group or siren ala rms, the setpoint, deadband and timer set tings are skip ped

Setp oint value

Deadb and value

Enable

A12Y

Disable (S elect thi s option for PM X420)

A12n

Enable

A34Y

Disable (S elect thi s option for PM X420)

A34n

Setp oints fixed at se tup

SECy

Can change setp oints

SECn

Auto matic reset

nOr

Manual res et

rES

Normally e nergised

A1nE

Normally de-en ergised

A1nd

Low t ype (active below set point)

A1=L

High t ype (acti ve above setpoint)

A1=H

Setp oint value

SP1=

e.g., 5 0.00 %

50.00

Deadb and value

db1=

e.g., 0 .01 %

0.01

Timer delay (set t o 0 s to disable)

dL1=

e.g., 2 0 s

20

Normally e nergised

A4nE

Normally de-en ergised

A4nd

Low t ype (active below set point)

A4=L

High t ype (acti ve above setpoint)

A4=H

Group alar m

A4=G

Siren alarm (manual reset mode only)

A4=S

Setp oint value

SP1=

e.g., 5 0.00 %

50.00

Deadb and value

db1=

e.g., 10 %

10.00

Toggle Accept

Toggle Accept

Toggle Accept

Toggle Accept

Toggle Accept

Toggle Accept

-

Dec- Inc

-

Dec- Inc

-

Dec- Inc

Toggle Accept

Toggle Accept

-

Dec- Inc

-

Dec- Inc

Next

Accept

Next

Accept

Next

Accept

Next

Accept

Next

Accept

Instrument Setup (continued)

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Timer delay (set t o 0 s to disable)

Timer delay

Calibration options

Calibrate
Input?

Calibrate
Outp ut?

Save values

*Note: Alarms and A nalogue ou tputs are fitted to the P MX420P lus only. You c an still se t values fo r the
alarms and analo gue outpu t on the PM X420 but t hey will onl y affect the di splay and s tatus led s.

dL1=

e.g., n o delay

0

Skip input calib ration

CIPn

Calibrate inputs

CIPy

Skip output calibra tion

COPn

Calibrate outputs

COPy

Inst rument is s aving the change s to the setup an d returning to normal

SAVE

operation

-

Dec- Inc

Toggle Accept

Toggle Accept

Next

Accept

During setup the Å and ì keys 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.

Equipmen

• A suitable current or voltage source

Terminal

t requirements

Connections for input calibration

Calibr ation Stage Signal t ype Terminal

Current (m A) inputs

Voltage ( V) inputs

Milliamp so urce (+) 8
Milliamp so urce (−) 9

Voltage so urce (+) 7
Voltage so urce (−) 9

Procedure

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When th e

display shows

Put the ins trument in setup mode and s croll through t he main menu

CIPn
CIPy

I=

0.00
I=

20.00

E=

0.00
E=

10.00

COPn

Note: To discard c hanges to c alibration and setu p you can remove the power at t his point.

Action/Des cription

Pres s ì or Å
Pres s ENT to select i nput calib ration
Connect t he current sour ce and pres s ENT
Set the cur rent source to 0 .00 mA and pres s ENT
Pres s ENT
Set the cur rent source to 2 0.00 mA p ress ENT.

Wait w hile the inp ut value is processed.
Connect t he voltage sour ce and pres s ENT

Set the vol tage sour ce to 0.00 V and press ENT
Pres s ENT

Set the vol tage sour ce to 10.00 V pres s ENT.
Wait w hile the inp ut value is processed.

Cont inue with t he setup sequence.

Output calibration (PMX420Plus only)

Analogue Output Setup

1. Enter setup mode. Then remove the security link, press ENT and
then replace the link. The display will show a single digit (normally 1).

ress ENT

2. P

again. The display will show O P=I (for current outputs) or
OP=E (for voltage outputs). Use ì to select the value you require, then
press ENT to accept. Continue through the setup mode. Note: you will
be required to calibrate the outputs (so follow the procedure below).

Equipmen

t requirements

• An accurate digital multimeter (accurate to 0.05 mV and ±0.1 μA)

Terminal Connections for output calibration

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Calibr ation Stage Signal t ype Terminal

Anal ogue Current Output

Anal ogue Voltage Ou tput

mA ou tput + 21
mA ou tput − 22

V output + 21
V output − 22

Procedure

Note: the procedure below shows calibration for the commonly used
4-20 mA forma

When th e

display shows

Put the ins trument in setup mode and s croll through t he main menu

COPn
COPy

I=

4.00

20.00

Save

Note: Do not remove the power while the s ave message is on display.

t. Expect different values for other formats.

Action/Des cription

Pres s ì or Å
Pres s ENT to select o utput cal ibration
Connect t he multimeter to measure th e output current, then pr ess ENT
Pres s ENT

Meas ure the out put signal
Adjust the output (using t he ì or Å keys) until the output is a t the value shown

When you are happy that the o utput is correct, p ress ENT
Pres s ENT
Meas ure the out put signal

Adjust the output (using t he ì or Å keys) until the output is a t the value shown
When you are happy that the o utput is correct, p ress ENT

Cont inue with t he setup sequence.