Endress+Hauser Promag 53 - Page 118

9 Trouble-shooting Promag 53 PROFIBUS-DP/-PA
118 Endress+Hauser
Restore from T-DAT
failed
SSAVE T-DAT
 # 206
206 device failure BAD
0x0F
constant
Cause:
System error. Data backup to T-
DAT failed, or error when acces-
sing the calibration values stored in
the T-DAT™.
Remedy:
1. Check whether the
T- D AT ™ is correctly plugged
into the I/O-board
→
Page 124, 126
2. Replace T-DAT™ if faulty.
Spare parts
→ Page 122
Check the spare part set num-
ber to ensure that the new,
replacement DAT is compatible
with the measuring electronics.
3. Replace measuring electronics
boards if necessary.
Spare parts
→ Page 122
Communication failure S COMMUNICAT. I/O
 # 261
261 no communication BAD
0x18
no limits
Cause:
System error. Communication error.
No data reception between ampli-
fier and I/O board or faulty internal
data transfer.
Remedy:
Check, whether the electronics
boards are correctly inserted in
their holders
→ Page 124, 126
Coil Current out of
tolerance
S TOL. COIL CURR.
 # 321
321 device failure BAD
0x0F
constant
Cause:
System error. The coil current of the
sensor is outside the tolerance.
Remedy:
1. Switch off the power supply and
check the connectors of the coil
cable
→ Page 124, 126
2. Replace measuring electronics
boards if necessary.
Spare parts
→ Page 122
Empty Pipe detected P EMPTY PIPE
! # 401
401 sensor conversion not
accurate (measured
value from sensor not
accurate)
UNCERTAIN
0x50
no limits
Cause:
Process error. Alarm by Empty Pipe
Detection (EPD). Measuring tube
partially filled or empty.
Remedy:
– Check the process conditions of
the plant
– Fill the measuring tube
EPD adjustment not
possible
PEPD ADJ.N.OK
! # 461
461 non-specific UNCERTAIN
0x40
no limits
Cause:
Process error. EPD calibration not
possible because the fluid's con-
ductivity is either too low or too
high.
Remedy:
The EPD function cannot be used
with fluids of this nature.
Device status
message
Diagnosis message
(Control system)
Device status
message
(Display)
No. Initial status
Analog Input Block/
Totalizer Block
Measured
value Q /
Substatus/
alarm limit
Cause/remedy