Proline Promass 83 PROFIBUS DP/PA Trouble-shooting
Endress+Hauser 119
9 Trouble-shooting
9.1 Trouble-shooting instructions
Always start trouble-shooting with the following checklist if faults occur after commissioning or
during operation. The routine takes you directly to the cause of the problem and the appropriate
remedial measures.
Check the display
No display visible and no
output signals present.
1. Check the supply voltage * Terminals 1, 2
2. Check device fuse → Page 143
85...260 V AC: 0.8 A slow-blow / 250 V
20...55 V AC and 16...62 V DC: 2 A slow-blow / 250 V
3. Measuring electronics defective * order spare parts → Page 137
No display visible, but
output signals are present.
1. Check whether the ribbon-cable connector of the display module is correctly plugged
into the amplifier board → Page 137 ff.
2. Display module defective * order spare parts → Page 137
3. Measuring electronics defective * order spare parts → Page 137
Display texts are in a
foreign language.
Switch off power supply. Press and hold down both the P keys and switch on the
measuring device. The display text will appear in English (default) and is displayed at
maximum contrast.
Measured value indicated,
but no signal at the current
or pulse output
Measuring electronics defective → order spare parts → Page 137
▼
Error messages on display
Errors that occur during commissioning or measuring are displayed immediately. Error messages consist of a variety of
icons. The meanings of these icons are as follows (example):
– Error type: S = system error, P = process error
– Error message type: $ = fault message, ! = notice message
– MEDIUM INHOM. = error designation (e.g. fluid is not homogeneous)
– 03:00:05 = duration of error occurrence (in hours, minutes and seconds)
– #702 = error number
"
Caution!
• See the information on → Page 47
• The measuring system interprets simulations and positive zero return as system errors, but displays them as notice
messages only.
System error (device error) has occurred → Page 121
Process error (application error) has occurred → Page 132
▼
Faulty connection to control system
No connection can be made between the control system and the device.
Check the following points:
Supply voltage
Transmitter
Check the supply voltage → Terminals 1/2
Device fuse Check device fuse → Page 143
85...260 V AC: 0.8 A slow-blow / 250 V
20...55 V AC and 16...62 V DC: 2 A slow-blow / 250 V
Fieldbus connection PROFIBUS PA:
Check data line: PA+ = terminal 26, PA– = terminal 27
PROFIBUS DP:
Check data line: A = terminal 26, B = terminal 27
Fieldbus connector
(only for PROFIBUS PA,
option)
• Check pin assignment/wiring→ Page 25
• Check connection between connector/fieldbus port.
Is the coupling ring tightened correctly?
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