Endress+Hauser Proline Promag 55 PROFIBUS PA, Руководство по эксплуатации

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Proline Promag 55 PROFIBUS PA Troubleshooting
Hauser 101
9 Troubleshooting
9.1 Troubleshooting instructions
Always start troubleshooting with the checklist below, if faults occur after startup 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 116
20 to 260 V AC and 20 to 64 V DC: 2 A slow-blow / 250 V
3. Measuring electronics defective
→
Order spare parts
→
Page 111
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 111 ff.
2. Display module defective
→
Order spare parts
→
Page 111
3. Measuring electronics defective
→
Order spare parts
→
Page 111
Display texts are in a
foreign language. Switch off power supply. Then press the
OS
keys simultaneously to switch the device back
on. 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 111
Æ
Error messages on display
Errors which occur during commissioning or measuring operation 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
– EMPTY PIPE = Type of error, e.g. measuring tube is only partly filled or completely empty
– 03:00:05 = duration of error occurrence (in hours, minutes and seconds)
– #401 = error number
"
Caution!
• Also observe the information on
→
Page 63
• The measuring system interprets simulations and positive zero return as system errors, but displays them as notice
messages only.
Error number:
No. 001 – 399
No. 501 – 699 System error (device error) has occurred
→
Page 103
Error number:
No. 401 - 499 Process error (application error) has occurred
→
Page 109
Æ
Incorrect connection to the PROFIBUS master
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 116
20 to 260 V AC and 20 to 64 V DC: 2 A slow-blow / 250 V
Fieldbus connection PROFIBUS: check data line
Terminal 26 = PA +
Terminal 27 = PA
−
Fieldbus connector • Check pin assignment/wiring
→
Page 49
• Check connection between connector/fieldbus port.
Is the coupling ring tightened correctly?