During initialisation the 1434 μPos automatically detects the
actuator control function (Normally Open or Normally Closed).
For all valves the Closed position is at 0/4 mA or 0 V.
Regulation diagram
Valve opening degree [%]
Electrical data
Power supply
Power supply
U
V
= 18...30 V DC
Power consumption ≤ 4 W (up to 24 V DC)
Analogue inputs
Accuracy / Linearity ≤ ± 0,3 % F.S.
Temperature drift ≤ ± 0.3 % F.S.
Set value a) 0-10 V; b) 0/4...20 mA
Input passive
Input resistance a) 100 kΩ; b) 50 Ω
Resolution 12 bit
External travel sensor
R
G
= 1-10 kΩ
Initialisation input (digital)
Voltage
U
rated
= 24V DC
Level "Logical 1" 14 V DC ≤ U
H
≤ 30 V DC
Level "Logical 0" 0 V DC ≤ U
L
≤ 8 V DC
Input current
I
typ
= 1.3 mA (at 24V DC)
Analogue output (optional)
Accuracy / Linearity ≤ ± 1.0 % F.S.
Temperature drift ≤ ± 0.5 % F.S.
Resolution 12 bit
Actual value output 0 - 20 mA / 4 - 20 mA
load resistor max. 600 Ω, 0-10 V
Output active
Electrical connection
Power supply 1 x M12 plug (A-coded)
and signal connections (Installation: Observe operating
instructions)
Positioner data
System deviation 1 % (factory setting)
≤ 0,1 % (can be set)
≤ 2,0 % (factory setting, K-no. 2442)
≥ 5,0 % (factory setting, K-no. 2443)
Initialisation Automatic via 24 V DC signal
Close tight function CLOSED: W ≤ 0.5%; OPEN: W ≥ 99.5%
Display elements
Status display 4 visible LEDs
* Interferences on set value signal may influence control activities
Operating conditions
Ambient temperature 0 to +60 °C
Storage temperature -10 to +60 °C
Control medium Quality classes to DIN ISO 8573-1
Dust content Class 3
(max. particle size 5 µm)
(max. particle density 5 mg/m³)
Pressure dew point Class 3
(max. pressure dew point -20 °C)
Oil concentration Class 3
(max. oil concentration 1 mg/m³)
Air supply 1 to 10 bar at 40 °C
1 to 8 bar at 60 °C
Air consumption 0 l/min (when idle)
Air output 15 Nl/min
Materials
Housing cover Polypropylene (UV-stabilized)
Housing base Anodized aluminium or stainless steel
Travel sensor system -
integrated for direct mounting
Linear version
Stroke 0.8 to 10 mm (code 010)
2.0 to 25 mm (code 030)
Resistance R 1 / 3 kΩ
Minimum stroke ≥ 8% of travel length
General information
Protection class to EN 60529 IP 65 / IP 67 ¹⁾
Weight 220 g
Dimensions L x W x H See dimensional drawing
Mounting position Optional
Intended use For mounting to and control of
pneumatic process valves
Particulars Fail safe function in case of power
supply failure ²⁾
Directives
EMV directive
2014/30/EU
¹⁾
IP 67 rating applies when using piped air outlets. Replace
threaded
plug connectors 3 and 4 by M5 adapters (1434 000 Z2, 2 pieces
required) for this purpose.
²⁾
the air supply line of the process valve is vented in case of power
supply failure.
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