GEM 1434 mPos User Manual

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16 Troubleshooting
16 Troubleshooting
16.1 LED messages
LED conditions Symbol
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 Error number OPEN ERROR CLOSED POWER
Set value > 20.5 mA/10.25
V
Error no. 1
Set value < 3.5 mA Error no. 2
Positioner not initialised Error no. 3
Positioner not calibrated Error no. 4
Device error Error no. 5
Positioner operating with
lower quality
Warning no. 1 ?
1)
?
1)
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 Error cause Error clearance
Positioner operating with lower quality During initialisation, the internal valves
could not be measured exactly.
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).
Positioner not initialised Device was not initialised Carry out initialisation
Positioner not calibrated Device faulty Return to service
Set value too high Set value signal >20.5mA/10.25V Check set value signal
Set value signal too low Set value signal < 3.5 mA Check set value signal
Device error No pneumatic air supply, leakage in pneu-
matic system
Check pneumatic air supply, check pneu-
matic connections

GEM 1434 mPos Specifications

General

Brand	GEM
Model	1434 mPos
Category	Valve Positioners
Language	English