ARI Armaturen ES11 EN User Manual
Page 22
Page 2-22
Rev. 0040601000 1014
Operating and installation instructions
Electronic positioner ES11
Outputs swing at short intervals
between clockwise and counter-
clockwise
- Adjusting screws not set in stand-
ard control range
- Carry out settings as described
- Potentiometer not OK.
- Replace potentiometer
- Electromagnetic interference of
actuating signal
- Install filter to actuating signal input
Motor in actuator does not oper-
ate but LEDs are lit
- Electrical connection from elec-
tronic positioner to actuator not
OK.
- Check electrical connections and
terminals
- Electronic positioner outputs are
burnt out
- Check whether motor voltage
agrees with the voltage specified
on the type identification plate.
Check whether the motor or supply
line has a short.
Replace electronic positioner
- Cable connection not OK.
- Check cable connection for correct
wiring and electrical contact.
- Motor burnt out.
- Check whether motor or supply
line has a short.
Replace motor.
Motor in actuator operates in only
one direction
- The positioner switch in the actua-
tor limits the control range
- Check cable connection for correct
wiring and contact
- Cable connection not OK
- Check whether motor or supply
line has a short.
- Only one electronic positioner out-
put burnt out - Adjust position
switch
- Replace electronic positioner.
Actuator does not cover entire
control range
- Spur gear transmission ratio at
potentiometer incorrect
- Adapt spur gear transmission ratio
to control range
- Adjusting screws N (zero point)
and S (slope span) out of range
- Carry out settings as described