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TRD
EN67
Fault code
P301=0
P301=2
P328>0
P328>0
241
0
0
251
0
0
Unlimit-
261
3
ed
Unlimit-
271
3
ed
281
1
1
Option-
291
3
al
320
1
1
321
1
1
351
1
1
Option-
352
3
al
Option-
353
3
al
360
0
0
362
0
0
363
1
1
371
0
0
372
0
0
381
0
0
391
0
0
393
0
0
394
0
0
451
1
1
600
0
0
20171988
Faults - Possible causes - Solutions
Description
Actuator does not move, i.e. no position feedback.
If this indication is shown, the monitoring of fault 271 is damaged.
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
large)
Actuator feedback remains constantly for too long, even when ac-
tuator has moved
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-
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
Open broken wire at firing rate input
Open broken wire at feedback channel: channel
Invalid fuel change while burner is running
Invalid combination of fuel signals (no signals)
Invalid combination of fuel signals (several signals)
Air deficiency causes a fault shut-down by O
Fault shut-down due to a missing burner maintenance
Smallest valid O
value decided
2
Output for internal firing rate is defective
Difference of the burner firing rate values between main processor
and watchdog processor is too large
Deviation between main processor and watchdog controller is too
large
Curve set has changed during programming
Emergency shut-down activated
Burner ON/OFF signal from the user interface turned off unexpect-
edly
Being operating mode for ignition not all channels are in ignition po-
sition
Program monitoring time (FAT) exceeded
trim.
2
42
GB
D1
D2
Direction:
P 2 =
Channel
backward,
forward
Channel
Channel
Channel
Channel
Channel
Channel
Correction
channel
Channel
Indication
number
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