Burkert Type 8650 - Manual (Page 105)

105
3.3. Troubleshooting
Fault Possible.cause Remedy
Valves do not switch No or insufficient operating voltage.
→
Check the electrical connection.
→
Ensure the correct operating voltage.
Manual override not in neutral
position.
→
Move the manual override to the neutral
position.
No or insufficient pressure supply.
→
Design the pressure supply system with
as large a volume as possible (also with
upline devices such as pressure regu-
lators, air conditioners, shut-off valves,
etc.)
Minimum operating pressure 2.5 bar
Incorrect configuration.
→
Use the corresponding module from the
hardware catalogue.
Channel not enabled for use.
→
Change setting of the parameters
(compare section “Acyclic parameters of
the AirLINE Ex modules” in the chapter
“Start-up”)
Too low value set for “Boost time”.
Fuse in the module tripped due to
a short circuit (can only occur in
extreme cases).
→
Replace the electronic module.
Check whether related valves are faulty or
damaged.
Valves switch with a delay
or blow off at the exhaust
ports. No or insufficient pressure supply.
→
Design the pressure supply system with
as large a volume as possible (also with
upline devices such as pressure regu-
lators, air conditioners, shut-off valves,
etc.)
Minimum operating pressure 2.5 bar
Valves are not in their normal
position (current-free) during the
pressure build-up.
→
Pressurize the valve block before
switching the valves!
Inadequate venting of the exhaust
air ducts due to too small or soiled
silencers (back pressures).
→
Use adequately dimensioned silencers or
expansion vessels.
→
Clean any soiled silencers.
Contamination or foreign matter in
the pilot control or main valve.
→
Replace the valve.
Valve blocks leaking. Missing or pinched O-rings
between the modules.
Missing or wrongly
positioned profile seals between
valves and basic pneumatic module.
→
Determine the location or the leaks or
missing seals.
→
Install missing seals or replace damaged
seals.
Type 8650
english
Maintenance and Repair