Troubleshooting Promag 53 PROFIBUS DP/PA
130 Endress+Hauser
9Troubleshooting
9.1 Troubleshooting instructions
Always start troubleshooting 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 → 152
85 to 260 V AC: 0.8 A slow-blow / 250 V
20 to 55 V AC and 16 to 62 V DC: 2 A slow-blow / 250 V
3. Measuring electronics defective order spare parts → 146
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 → 146
2. Display module defective order spare parts → 146
3. Measuring electronics defective order spare parts → 146
Display texts are in a
foreign language.
Switch off power supply. Press and hold down both the
OS
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 → 146
▾
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 TUBE = 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 refer to the information on → 73
• 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→ 132
Process error (application error) has occurred→ 141
▾
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 → 152
85 to 260 V AC: 0.8 A slow-blow / 250 V
20 to 55 V AC and 16 to 62 V DC: 2 A slow-blow / 250 V
Fieldbus connection PROFIBUS PA: Check data line
Terminal 26 = PA +
Terminal 27 = PA -
PROFIBUS DP: Check data line
Terminal 26 = B (RxD/TxD-P)
Terminal 27 = A (RxD/TxD-N)
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