2. Screw the signal cable to the "Output actual value" connection è 4.2.2
Connecting elements.
–Tightening torque 0.5 Nm ± 20%
3. Earth the shielding at the end of the cable away from the product.
4. Screw the connecting cable to the "input setpoint value/power supply" con-
nection è 4.2.2 Connecting elements.
–Tightening torque 0.5 Nm ± 20%
7 Commissioning
WARNING
Risk of injury from compressed air/pressure surge.
Products under pressure can cause personal injury.
• Before applying the supply pressure set the setpoint value of the VPPL to zero.
Requirements:
–For the VPPL-3L sleeve version:
–The VPPL is completely connected and ready for operation.
–For the VPPL-3Q flange version:
–The VPPL is flange-mounted on the PREL.
–The PREL is completely connected and ready for operation.
1. Switch on the supply voltage.
2. Switch on the operating pressure.
3. Switch on the voltage for the setpoint value signal.
4. Start the VPPL and PREL together.
5. Select the parameter set for the closed-loop controller è 8 Operation.
The valve is ready for operation.
8 Operation
Setting parameter set
1. Press and hold the [EDIT] key for 3 seconds.
The "Status" LED flashes green.
2. Press the [DOWN] key repeatedly until the desired parameter set is selected.
3. Press the [EDIT] key.
The selection is accepted and the "Status" LED shows green.
The valve is ready for operation.
9 Maintenance
Prior to all maintenance work
1. Turn off the analogue setpoint signal.
2. Switch off the operating voltage and lock switch to prevent reactivation.
3. Depressurise the valve.
4. Allow the device to cool down.
9.1 Cleaning
Regularly clean the outside of the product with a soft cloth. The approved
cleaning agent is water or detergent (max. 50 °C).
10 Malfunctions
10.1 Fault clearance
Malfunction Display Possible cause Remedy
VPPL does not react. Status LED is not
on
No supply voltage Check supply voltage
- Device faulty Replace device
Valve exhausted to
0 MPa.
- Supply cable broken Replace cable
Output stage is switched
off, error bit is set, valve
exhausted to 0 MPa.
Status LED red Hardware error, elec-
tronics
Replace device
VPPL cable break with
setpoint value signal for
current
Replace cable
Output stage is switched
off, error bit is set, valve
exhausted to 0 MPa.
Status LED
flashing red
Power supply under-
voltage < 17 V
Increase power supply
to > 20 V
Supply pressure not
present.
è 7 Commissioning
Tab. 6
11 Disassembly
WARNING
Risk of injury from compressed air/pressure surge.
Products under pressure can cause personal injury.
• Before working on the product, switch off the compressed air supply and lock it
to prevent it from being switched on again.
1. Depressurise the pneumatic system.
2. Turn off the analogue setpoint signal.
3. Switch off supply voltage and lock switch to prevent reactivation.
4. Allow the device to cool down.
5. Disconnect the electrical connections of the VPPL.
6. Decommission the PREL.
7. Disconnect VPPL mechanical mounting.
12 Technical data
12.1 Technical data, general
VPPL-… -0L20H -0L40H
Design Proportional pressure regulator
Mounting position As desired, preferably display elements facing
upwards.
The solenoid coil must not be upside down.
Type of mounting Flange and thread
Operating medium Filtered, unlubricated compressed air, grade of
filtration min. 40 µm
Max. total leakage when new [l/h] < 20
Temperature of medium [°C] +5 … +50
Ambient temperature [°C] +5 … +50
Degree of protection in assembled status IP65 in accordance with EN 60529/
A1:2000-02
Operating voltage DC [V] 21.6 … 27.6
Max. residual ripple [%] 10
Max. power consumption [W] 24
Max. permissible input pressure
[MPa] 4 5
[bar] 40 50
[psi] 580 725
Control range
[MPa] 0.02 … 2 0.04 … 4
[bar] 0.2 … 20 0.4 … 40
[psi] 2.9 … 290 5.8 … 580
Control precision, standard 2%
[MPa] 0.04 0.08
[bar] 0.4 0.8
[psi] 5.8 11.6
Nominal width
Pressurisation [mm] 2.5
Exhaust port [mm] 2.5
Signal setpoint value DC, analogue input
Voltage [V] 0 … 10
Current [mA] 4 … 20
Input resistance setpoint value
VPPL-…-V1-… [kΩ] ³ 100
VPPL-…-A4-… [Ω] £ 100
Signal actual value DC, analogue output
Voltage [V] 0 … 10
Current [mA] 4 … 20
Load resistance (analogue output)
VPPL-…-V1-… [kΩ] ³ 1
VPPL-…-A4-… [Ω] £ 600
Materials
Housing Wrought aluminium alloy
Internal parts Stainless steel, brass, aluminium
Cover PAXMD6-GF50gr-P; PA6-GB20, GF10/gr-P
Seals HNBR
Lubrication Contains paint-wetting impairment sub-
stances1)
1) PWIS = paint-wetting impairment substances
Tab. 7: Technical data, general
VPPL-… -0L20H -0L40H
Linearity 2% Full Scale (FS)
Hysteresis 0.5% FS 1% FS
Reproducibility ±1% FS
Total accuracy 0.5% FS 1% FS
Temperature coefficient 0.04% /K
1) Maximum deviation, characteristic values determined at room temperature in accordance with ISO 10094.
Linearity refers to the ideal characteristic curve.
Tab. 8: Control characteristics1)
12.2 Technical data for UL/CSA certification
Electrical data and ambient conditions UL/CSA
Input current [A] Max. 0.44
Operating pressure [bar] Max. 0.8
Pollution degree 3
Humidity range [%] 0 … 90
Installation site for indoor use only
Max. installation height [m] 2000
Degree of protection The degree of protection IP65 is not UL-tested.
Tab. 9: Electrical data and ambient conditions UL/CSA
