Weidmuller PMX420 Series User manual

PMX420-SERIE 61001099/00/01.08
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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
2
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)
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
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
Next
Accept
IPH=
20.00
Input range upper limit
e.g., 20.00 mA
-
Dec
-
Inc
Next
Accept
Damping factor dF=
2
Introduces the damping factor
Value, e.g., 2
-
Dec
-
Inc
Next
Accept
Linearisation LInr
Sr
Linear
Square root Toggle Accept
Display range
dP=
.Decimal point position -
Shift
Next
Accept
dLO=
0.0
Display range lower limit
e.g., 0.0
-
Dec
-
Inc
Next
Accept
dHI=
100.0
Display range Upper limit
e.g., 100.0
-
Dec
-
Inc
Next
Accept
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
Next
Accept
OPH=
20.00
Output high value
e.g., 20.00
-
Dec
-
Inc
Next
Accept
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
Next
Accept
Deadband value db1=
0.01
Deadband value
e.g., 0.01 %
-
Dec
-
Inc
Next
Accept
Timer delay dL1=
20
Timer delay (set to 0 s to disable)
e.g., 20 s
-
Dec
-
Inc
Next
Accept
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
Next
Accept
Deadband value db1=
10.00
Deadband value
e.g., 10 %
-
Dec
-
Inc
Next
Accept
Instrument Setup (continued)
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Timer delay dL1=
0
Timer delay (set to 0 s to disable)
e.g., no delay
-
Dec
-
Inc
Next
Accept
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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Procedure
When the
display shows Action/Description
Put the instrument in setup mode and scroll through the main menu
CIPn Press ìor Å
CIPy Press ENT to select input calibration
I= Connect the current source and press ENT
0.00 Set the current source to 0.00 mA and press ENT
I= Press ENT
20.00 Set the current source to 20.00 mA press ENT.
Wait while the input value is processed.
E= Connect the voltage source and press ENT
0.00 Set the voltage source to 0.00 V and press ENT
E= Press ENT
10.00 Set the voltage source to 10.00 V press ENT.
Wait while the input value is processed.
COPn Continue with the setup sequence.
Note: To discard changes to calibration and setup you can remove the power at this point.
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).
2. Press ENT again. The display will show OP=I (for current outputs) or
OP=E (for voltage outputs). Use ìto 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).
Equipment requirements
• An accurate digital multimeter (accurate to 0.05 mV and ±0.1 μA)
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Terminal Connections for output calibration
Calibration Stage Signal type Terminal
Analogue Current Output mA output + 21
mA output − 22
Analogue Voltage Output V output + 21
V output − 22
Procedure
Note: the procedure below shows calibration for the commonly used
4-20 mA format. Expect different values for other formats.
When the
display shows Action/Description
Put the instrument in setup mode and scroll through the main menu
COPn Press ìor Å
COPy Press ENT to select output calibration
I= Connect the multimeter to measure the output current, then press ENT
4.00
Press ENT
Measure the output signal
Adjust the output (using the ìor Åkeys) until the output is at the value shown
When you are happy that the output is correct, press ENT
20.00
Press ENT
Measure the output signal
Adjust the output (using the ìor Åkeys) until the output is at the value shown
When you are happy that the output is correct, press ENT
Save Continue with the setup sequence.
Note: Do not remove the power while the save message is on display.
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