Festo Генератор вакуума OVEM, дюймовый - Handbuch (Seite 101)

OVEM
Festo ć OVEM ć 1004b English 101
9 Eliminating faults
Fault Possible cause Remedy
Work item does not
loosen from suction
cup
Vacuum builds up when large suction
cups lift quickly
Ĉ Increase duration and intensity of
reject pulse
Ĉ Lift suction cup more slowly from
work item
Ĉ Set the reject pulse actively when
the suction cup lifts
The tubing used between suction cup
and vacuum generator has the wrong
dimensions (tubing is too long and/or
internal diameter too small)
Replace tubing
Tubing requirements è chapter 4.2
Flow control screw is closed Open flow control screw
No display Supply voltage not applied or no
permitted operating voltage
Switch on supply voltage / maintain
permitted operating voltage range
Electrical connections swapped
(incorrect polarity)
Connect the device as per circuit
diagram
Device defective Exchange device
Incomplete display Display defective Exchange device
Incorrect pressure
display
Pneumatic connections swapped Connect tubing in accordance with
section Pneumatic installation" p y
Device operated with non−permitted
medium
Replace the device and operate only
with compressed air
Outputs do not
switch according to
Short circuit/overload at relevant
output
Eliminate short circuit/overload
g
settings Device defective Exchange device
Settings cannot be
edited (Lock" in
the display)
Access protection active Enter security code
(if security code is lost, reset device to
factory setting è chapter 7.3)
[min] [max] flash
synchronously
Diagnostic stage 1 active è Tab. 15:
LCD display and
[min] [max] flash
Diagnostic stage 2 active è Tab. 15:
Display flashes and
ErXX is shown
Diagnostic stage 3 active è Tab. 15:
[Option] flashes Settings during teaching incorrect,
e.g. hysteresis with air−save function
<Ă100 mbar
Teach again, reset hysteresis
Tab. 16: Eliminating faults