BWT Bewazon VULW 45 - Understanding Fault Messages

EN
32
Fault no. Monitored operating
condition
Delayed
actuation
Ozone device reaction Possible cause Remedy
(§5/6) Dryer fault 1/2:
cancellation/end of
regeneration test run
Dryer regeneration - Cancellation of regenerati-
on, dryer is not ready
Manual cancellation of
regeneration
(§7/8) Dryer reset 1/2:
Cancellation of rege-
neration, dryer ready
for operation
Dryer regeneration - Cancellation of regenerati-
on, dryer is ready
Manual dryer reset
during regeneration
(§9 to 17) reserved - - - - -
(§18) PLC hardware
error,conguredhard-
ware does not match
actual hardware
PLC startup - Device is not ready for
operation
Conguredenhance-
ment module is una-
vailable or defective
Checkthecongu-
ration
(§19) PLC fault: 24V
power supply failure
on analogue input mo-
dule SM 1231 (76A1)
All - Device is not ready for
operation
Power supply failure
or module defective
Check for causes
(§20) PLC fault: 24V
power supply failure
on analogue output
module SM 1232
(76A2)
All - Device is not ready for
operation
Power supply failure
or module defective
Check for causes
(§21) reserved - - - - -
(§22) Fault: PLC and
TP version numbers
aredi󰀨erent
PLC startup - Device is not ready for
operation
Di󰀨erentPLCandTP
software version
Check the PLC and
TP software versions
(§23) Fault: Date/time
not set
PLC startup - Device is not ready for
operation
PLC had no power
supply for more than
24 days
Set the time
(§24) reserved - - - - -
(§25) Fault: Power
supply phase failure
or network phases
connected in reverse
All 5 sec. a) Ozone generation swit-
chedo󰀨withpost-purge
b) Regeneration cancelled
if in the heating phase
Failure of a mains
phase or "left"
("anti-clockwise")
rotaryelddirection
Check phase and
rotaryelddirectionof
rotation
(§26) Fault: Ozone
cabinet door switch
open
Ozone generation - Ozone generation swit-
chedo󰀨without post-
purge
Ozone cabinet door
open
Close the ozone cabi-
net door
(§27) Fault: Emergen-
cy stop pressed
Ozone generation - Ozone generation swit-
chedo󰀨without post-
purge
Emergency stop
pressed
Reset the emergency
stop
(§28) Fault: Ozone
gas warning
Ozone generation - Ozone generation swit-
chedo󰀨without post-
purge
Ozone gas warning Check ozone gas
warning device
(§29) reserved - - - - -
10.2 Fault messages
Any faults that pose a potential hazard for the operator result in imme-
diate disconnection of the high voltage supply, and ozone generation is
stopped. The unit is not purged post-operation by air.
Faults during dryer regeneration do not initially inuence ozone ge-
neration The “Dryer failure” fault message is not displayed until the
operational dryer is exhausted and the other is not ready for operation.
Ozone generation is then stopped.
The dryer loads are calculated as a result of the settings made at the
TP(humidityandairow).Ifaloadingtimethatisshorterthanthere-
generation time of the dryer is calculated using the data, the “Required
dryer capacity too large” fault is displayed. Continuous operation is not
possible.
Ozonegenerationisswitchedo󰀨whenfaultsoccurwhichcoulddamage
the unit. However, the unit is purged post-operation (for the duration
set), if this is possible.
If the unit is equipped with an integrated P/PID controller, both the
congurationofthecontrollerandtheoperationofthesignaltransmitter
component of the PLC are monitored in controller operation.
Messagesforfaultswhichoccurandhavebeenrectiedmustbeack-
nowledged on the unit. The unit then continues operation according to
the set operating condition.
You must call our service department to clear faults which require tech-
nical intervention in the unit.