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TRD
Fault
P301=0
code
P328>0
241
0
251
0
261
Unlimited
271
Unlimited
281
1
291
Optional
320
1
321
1
351
1
352
Optional
353
Optional
360
0
362
0
363
1
371
0
372
0
381
0
391
0
393
0
394
0
451
1
600
0
601
0
602
0
603
0
606
0
20171664
Faults - Probable causes - Solutions
EN67
P301=2
Description
P328>0
0
Actuator does not move, i.e. no position feedback.
If this indication is shown, the monitoring of fault 271 is damaged.
0
Actuator cannot find reference position
Direction:
0 backward
1 forward
Check the flap's smooth-running to reference position.
Actuator returns invalid position (difference to target position too
3
large)
Actuator feedback remains constantly for too long, even when ac-
3
tuator has moved
1
Feedback signal of at least 1 actuator is incorrect
To identify the actuator's direction of rotation two pulse form sig-
nals, offset 90 degrees, are returned by the actuator.
If fault 281 occurs, these signals are not identified correctly.
Cause of error:
–
back lash
–
actuator 0,8 Nm: external torque clockwise >0.2 Nm
–
actuator 9 Nm: external torque clockwise >1 Nm
Actuator does not reach the final position, because of mixed- up de-
3
tection.
Actuators are mixed up while reconnecting. The test for recognising
this fault is described in the manual of the BT300 - print no.
DLT1201.
At least one actuator does not reach it's test position:
–
2 actuators are mixed up
–
another problem inhibits the actuator to reach it's test position
1
Open broken wire at firing rate input
1
Open broken wire at feedback channel: channel
1
Invalid fuel change while burner is running
3
Invalid combination of fuel signals (no signals)
3
Invalid combination of fuel signals (several signals)
0
Air deficiency causes a fault shut-down by O
0
Fault shut-down due to a missing burner maintenance
1
Smallest valid O
0
Output for internal firing rate is defective
Difference of the burner firing rate values between main processor
0
and watchdog processor is too large
Deviation between main processor and watchdog controller is too
0
large
0
Curve set has changed during programming
0
Emergency shut-down activated
Burner ON/OFF signal from the user interface turned off unexpect-
0
edly
Being operating mode for ignition not all channels are in ignition po-
1
sition
0
Program monitoring time (FAT) exceeded
0
Failure during leakage test: gas pressure still active
0
Failure during leakage test: no gas pressure detected
0
Manual venting of the gas line required
0
CPI/POC signal in unexpected state
value decided
2
44
GB
Channel
Channel
Channel
Channel
Channel
Channel
Channel
trim.
2
Correction
channel
Channel
Indication
number
D1
D2
Direction:
P 2 =
backward,
forward
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