If SP.O. is selected
1
2
3
4
Fig. 3: If SP.O. is selected
1 Hysteresis
2 Setpoint value
3 Actual value
4 SP.O. signal
8.4
Display symbols menu
Notes on the following table:
[x.xx] = pressure indicator for actual value or setpoint value
[ ... ] = input value, with flashing display
–
The main menu selection can be made in only one direction with the Selection
button
V
.
–
Within a menu option the selection can generally be made with the
v
or
V
button.
–
If a selection is not made in the main menu within 10 seconds or in a menu
option within 80 seconds, the display automatically jumps back to the initial
position, which is exception [Frc].
Menu = main menu selection
[x.xx] = value specification for setpoint value or actual value
Continue in the menu = press Edit button
If the display flashes (grey background) = you can make a selection with
v
V
buttons
Change value [ ... ] = with
v
V
buttons
Save selection/value = press Edit button
No. Menu
Selection option
v
V
1
[x.xx]
v
(1 s) = [in]
V
(1 s) = [out]
2
[Pr...]
[Pr...]
Pr1
Pr2
Pr3
3
[bAr]
[bAr]
bAr
PA
PSI
4
[OFS]
[ ... ]
5
[rnG]
[ ... ]
6
[Frc]
0.00 … 10.0 V (voltage variant)
4.00 … 20.0 mA (current variant)
[ ... ]
7
[An]
[An]
SP.O.
SP
SP.L
HY
[ ... ]
[ ... ]
[ ... ]
[ ... ]
[ ... ]
[ ... ]
HY
SP.H
[n.Lo/n.Hi]
[ ... ]
[ ... ]
[n.Lo/n.Hi]
[ ... ]
[ ... ]
[n.Lo/n.Hi]
HY
[n.Lo/n.Hi]
[ ... ]
[ ... ]
n.Lo/n.Hi
n.Lo/n.Hi
8
[Eco]
[OFF]
[OFF]
[1 … 999] sec.
9
[Pin]
[OFF]
No. Menu
Selection option
v
V
[OFF]
[1 … 999]
back
to no. 1
Tab. 6: Display
9
Operation
NOTICE
When switching off the VPPE-..., make sure that the setpoint voltage or setpoint
current intensity is switched off first, then switch off the supply pressure and
finally the supply voltage.
The green status LED lights if the actual value is equal to the setpoint value of
within a range of ± 1% (FS) of the setpoint value.
Lock [Loc] - unlock [unL]
If a PIN code was entered with [Pin], [Loc] is shown in the display and the edit
mode is locked via the PIN code. If a flashing [0] appears, enter the correct pin.
After the correct PIN is entered, [unL] is displayed. If the input is incorrect, the
VPPE returns to the initial position.
10
Maintenance
–
Clean the housing of the VPPE-... with a soft cloth only. The permitted cleaning
medium is a mild detergent solution at maximum 50 °C.
10.1
Cleaning
For use with reduced particle emission:
–
Remove abraded particles and dirt from the product:
–
Prior to initial commissioning.
–
Regularly during operation.
11
Malfunctions
Malfunction
Possible cause
Remedy
VPPE-... does not react
No supply voltage, LED not on
Check the connection of the
24 V DC supply voltage
No setpoint voltage
Check the controller and con-
nection
VPPE-... fault
Send the device to the Festo
repair service
Flow rate too low
Restriction of the flow cross
section due to connection tech-
nology (swivel fittings)
Use alternative connections
Pressure constant despite
modified setpoint specification
Supply cable breakage; the last
output pressure set is main-
tained but not regulated. Slow
pressure change at output pos-
sible
Replace supply cable
Harsh switching noise of the
VPPE-...
Input pressure p1 not present
Increase input pressure p1 to
at least 0.1 MPa above output
pressure p2.
Monitor maximum permissible
operating pressure of 0.8 MPA.
Tab. 7: Causes and remedies for malfunctions
11.1
Reset to factory settings
NOTICE
Resetting to the factory settings will lose the current settings.
• If required, make a note of these settings before reset.
Reset [rES] restores the factory setting. Press and hold "
v
+
V
+ Edit" and then
switch on the device.
The following parameters are then set:
Parameter
Setting/value
x.xx
Permanent display for actual value or setpoint value
Pr2
(universal control behaviour)
bar
bar
OFS
000
rnG
for 1 MPa type: 10
for 0.6 MPa type: 6
for 0.2 MPa type: 2
Frc
Display shows existing pressure at pressure output (p2)
An
Output: analogue
Eco
OFF
Pin
OFF
Tab. 8: Parameters after reset
