ARI Armaturen ES11 EN - Manual (Page 21)

Rev. 0040601000 1014 Page 2-21
Operating and installation instructions 
Electronic positioner ES11
8.0 Troubleshooting
In the event of malfunction or faulty operating performance check that the installation and
adjustment work has been carried out and completed in accordance with these Operating
Instructions.
-
ATTENTION !
- It is essential that the safety regulations are observed when identifying faults.
If malfunctions cannot be eliminate with the help of the following table 
“9.0 Troubleshooting table”, the supplier or manufacturer should be consulted.
9.0 Troubleshooting table
ATTENTION !
- read point 10.0 and 11.0 prior to dismantling and repair work!

- read point 6.0 before restarting the plant !
Faults Possible causes Corrective measures
Yellow LED is not lit - Mains failure - Check power supply
- Incorrect operating voltage - Connect operating voltage in
accordance with type identification
plate
- Electronic positioner burnt out - Check whether mains voltage
agrees with the voltage specified
on type identification plate.

Replace electronic positioner.
- Connection terminal not connected
correctly or cable has no contact in
connection terminal
- Firmly plug in connection terminal
and check connection cable
Electronic positioner cannot be
adjusted - Potentiometer not connected cor-
rectly
- Check connections
- Potentiometer has incorrect value
rating
- Replace potentiometer by 
1000  potentiometer
- Potentiometer connected to incor-
rect terminal
- Correct connection in accordance
with circuit diagram
- Actuating signal not applied - Connect actuating signal
- Actuating signal connected to
incorrect terminal
- Correct connection in accordance
with circuit diagram
- Adjusting screws N (zero point)
and S (slope span) are out of
range
- Carry out settings as described
under 6.0 to 6.6
- Effective direction switch SW
switched incorrectly
- Switch effective direction switch in
accordance with 6.4
- Switching outputs to motor burnt
out
- Check whether motor or supply
line has a short.Replace elec-
tronic positioner