Troubleshooting - GEM 1434 mPos Operating Instructions Manual

16 Troubleshooting

16 Troubleshooting
16.1 LED messages
LED conditions
Off
Lit (on)
Flashes on briefly,
f=1.66 Hz; 0.30 s on/0.3 s off
Flashes slowly,
f=3.33 Hz;0.15 s on/0.15 s off
Flashes fast,
f=1.66 Hz; 0.15 s on/0.45 s off
Meaning
Set value > 20.5 mA/10.25
V
Set value < 3.5 mA
Positioner not initialised
Positioner not calibrated
Device error
Positioner operating with
lower quality
1) In this case, the display of the OPEN and CLOSED LEDs is dependent on the position of the valve and is therefore irrelevant.
16.2 Troubleshooting
Error
Positioner operating with lower quality
Positioner not initialised
Positioner not calibrated
Set value too high
Set value signal too low
Device error
GEMÜ 1434 µPos
Symbol
Error number OPEN
Error no. 1
Error no. 2
Error no. 3
Error no. 4
Error no. 5
Warning no. 1 ? 1)
During initialisation, the internal valves
could not be measured exactly.
Device was not initialised
Device faulty
Set value signal > 20.5 mA/10.25 V
Set value signal < 3.5 mA
No pneumatic air supply, leakage in pneu-
matic system
ERROR CLOSED
? 1)
Error cause
28 / 32
POWER
Error clearance
Check process valve for leakage. Check
and ensure free and easy movement of
the process valve.
Prevent unstable medium pressure during
initialisation (if possible turn off media
pressure).
Carry out initialisation
Return to service
Check set value signal
Check set value signal
Check pneumatic air supply, check pneu-
matic connections
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