Festo OVEM, Operating Instructions Manual

Page: 98 / 111

OVEM
98 Festo – OVEM – 1407c English
8.2.2 Error code
Note
There are, of course, also errors in which the diagnostics no longer work. See the
chapter on fault clearance to eliminate them.
Dia­
gnostic
level
Error
code
Description Remedy
1
1)
Er34 Evacuation time exceeded in 2 of 5
cycles
Check for leakage
Er36 Air supply time exceeded in 2 of 5
cycles
Check for leakage
Lengthen air supply time
Check throttle setting
2
2)
Er33 Solenoid valve does not switch or does
not switch correctly.
Plunger does not move; current
through solenoid coil is too low; short
circuit in solenoid coil
Press mechanical manual override
several times.
Check supply voltage.
If there is no improvement, the device
is defective.
Send device to Festo.
Er35 The set threshold for evacuation time
is exceeded by a factor of two in 2 of 5
cycles.
Check for leakage
Er37 The set threshold for air supply time is
exceeded by a factor of two in 2 of 5
cycles.
Check for leakage
Lengthen air supply time
Check throttle setting
2
2)
Er38 Switching frequency of the air saving
function lies above the limit value of
1 Hz
Check for leakage
2
2)
Er39
3)4)
Specified vacuum value is not reached
within 10 s
Check for leakage
Check compressed air supply
Switch-back threshold fallen below
(active air saving function and
threshold value comparator)
Set trigger levels logically
Check settings for Out A
Check compressed air supply
Upper trigger level exceeded or lower
trigger level fallen below (window
comparator)
Set trigger levels logically
Check settings for Out A
Check compressed air supply