10
Fault clearance
Warning
Risk of injury from compressed air/pressure surge.
Products under pressure can cause personal injury and material damage.
Before applying the supply pressure: Set the setpoint value of the VPPL to zero.
Malfunction
Display
Possible cause
Remedy
The valve
switches off
after 5 s
LED status at
the VPPL
flashes red
Supply pressure lacking
1. Set setpoint value to zero
2. Apply supply pressure
3. Set required setpoint value
Fig. 5
Note
For additional information on fault clearance
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Operating instructions VPPL
11
Accessories
Designation
Product type
Sub-base
PAML-CP-186-HP3
Module connector
PAML-MK-186-HP3
Propor tional pressure regulator
VPPL
Pneumatic silencers
U-G1-HD-SA
Fig. 6
12
Technical data
PREL-186
-40CFX
-40CFX2
Supply pressure p1
[bar]
0 … 50
Auxiliary pilot air connection (to PAHL)
–
G
¼
Pressure range, auxiliary pilot air
[bar]
–
6 … 10
Pressure regulation range
[bar]
0.4 … 40
Signal setpoint
value
(Analogue input)
Voltage
[V DC]
0 … 10
Current
[mA]
4 … 20
Operating voltage
[V DC]
21.6 … 27.6
Operating medium
Compressed air to ISO 8573-1:2010 [7:4:4]
Inert gases
Temperature of medium
[°C]
+5 … +50
Ambient temperature
[°C]
+5 … +50
Mounting position
Vertical with VPPL on top
Alternative mounting position
Vertical with VPPL underneath
Flow direction
Marking on the housing: from 1 to 2
Type of mounting
– In-line installation
– Module connector
– Sub-bases
Classification in accordance with
Pressure Equipment Directive
Category I
CE marking (see declaration of
conformity)
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www.festo.com/sp
– According to EC Pressure
Equipment Directive
– According to EC Pressure
Equipment Directive
– In accordance with the
EC Machinery Directive
Max. cable length
[m]
30
Weight
[kg]
37.1
40.4
1)
The device is intended for use in an industrial environment.
Measures for interference suppression may need to be implemented in residential areas.
Fig. 7
Dependence of p1 on p2
max
PREL-186-HP3-...-40...
Fig. 8
Pressure ramp at switch-on of the PREL
(Not activated with ongoing controlled operation)
PREL-186-...-40...
Fig. 9