BWT Bewazon VULW 45 - Page 34

EN
34
Fault no. Monitored operating
condition
Delayed
actuation
Ozone device reaction Possible cause Remedy
(§37/38) Dryer fault
1/2: Regeneration
blower failure 1M1
Regeneration heating
phase
- Cancellation of regene-
ration, ozone generation
continued until fault §30
reported
a) Regeneration
blower current con-
sumption too high
for protective motor
switch
b) Blower faulty
c) Regeneration air
valve faulty and
closed
a) Check current con-
sumption, set the
motor protection
higher if necessary
b) Check blower
c) Check regeneration
air valve
(§39/40) Dryer fault
1/2: Cancellation of re-
generation, dryer not
ready for operation
Dryer regeneration - Cancellation of regene-
ration, ozone generation
continued until fault §30
reported
Operator/service
request on the panel:
“Cancellation” of rege-
neration
(§41/42) Dryer fault
1/2: Maximum warm-
up time for regenera-
tion air inlet tempera-
ture exceeded, warm-
up temperature on
thermostat 16S1/16S2
not reached
Regeneration warm-
up phase
- Cancellation of regene-
ration, ozone generation
continued until fault §30
reported
a) Heater faulty
b) Air inlet thermos-
tat 16S1/16S2 for
receiving hot air
faulty
c) Regeneration air
valve faulty and
closed
d) Regeneration blo-
wer faulty
Check components
specied
(§43/44) Dryer fault
1/2:On/o󰀨number
on heater 1E1/1E2
lower than 3, switch
temperature on ther-
mostat 16S1/16S2 not
reached
Regeneration warm-
up phase
- Cancellation of regene-
ration, ozone generation
continued until fault §30
reported
a) Heater faulty
b) Air inlet thermostat
16S1/16S2 faulty
c) Regeneration air
valve faulty and
closed
d) Regeneration blo-
wer faulty
Check components
specied
(§45/46) Dryer fault
1/2: Maximum time for
maintaining tempe-
rature exceeded,
end temperature not
reached on thermostat
16S3/16S4
Regeneration heating
phase
- Cancellation of regene-
ration, ozone generation
continued until fault §30
reported
a) Heater faulty
b) Air outlet thermostat
16S3/16S4 faulty
c) Regeneration air
valve faulty and
closed
d) Regeneration blo-
wer faulty
Check components
specied
(§47, 48) reserved - - - - -
(§49 to 62): Fault
messages for design
with double dryer in
accordance with
(§33 to 45)
See (§33 to 45)
(§63, 64) reserved - - - - -
(§65 / 81 / 97 / 113)
Ozone device fault
(circuit 1) / circuit 2 /
3 / 4: Water inrush in
ozone generator
Devices with PVC
ozone generator
=> all
- Ozone generation swit-
chedo󰀨without post-
purge
For PVC ozone gene-
rators: Water inrush
in gas cabinet due to
glass breakage
Rectify cause of water
inrush,
replace ozone genera-
tor if necessary
(§66 / 82 / 98 / 114)
Ozone device fault
(circuit 1) / circuit 2 /
3 / 4: Analogue input,
module SM1231
(76A1), channel AI0 /
AI1 / AI2 / AI3: Signal
negative or > 24 mA
Operating mode for
“Set ozone level” is
set to:
a) “Prop. controller”
or
b) “PID controller”
=> Monitored opera-
ting state
- Ozone generation swit-
chedo󰀨withpost-purge
Analogue input signal:
a) Signal cable not
connected to
the correct input
channel or cable is
broken
b) No measurement
signal
c) Measurement signal
polarity reversed
d) Measurement
signal too high
Check the analogue
input signal and con-
nection