7
ILEA_IOM_RevDc_0721
22
Red LED
Green LED
Glo
w
in
g
per
ma
ne
ntl
y
Fl
as
hi
ng
q
uic
kly
Fl
as
hi
ng
slowly
Off
Glo
w
in
g
per
ma
ne
ntl
y
Fl
as
hi
ng
q
uic
kly
Fl
as
hi
ng
slowly
Off
Faults within the actuator’s
environment
Probable reasons
Possible remedy
x
x
Actuator drives into a preset
position
1) Signal is applied to the
binary fail‐safe input
2) Supply voltage failure on
actuators with optional
PSCP
1) Disconnect the signal
2) Check supply voltage
x
x Set‐value disconnected or outside
the parameterized range
1) Set‐value not connected
2) Wrong polarity of set‐
value
3) set‐value signal outside
parameter range, please
check
1) Apply set‐value
2) Check the set‐value
polarity
3) Check the set‐value range
x
x
Stored end position could not be
reached
Loose or dirty valve seat
Check the valve seat
x
x
Stored end position has been
passed over
Valve seat worn or defective Check the valve seat
x
x
Actuator supply voltage too low
1) Improper wiring of the
mains supply
2) Jitter in supply voltage
3) Too low supply voltage
from PSEP (with optional
PSEP)
1) Check mains wiring
2) Check supply voltage ‐>
see datasheet
3) Contact PS service team
Faults within the actuator
Probable reasons
Possible remedy
x
x
Actuator has reached lifetime limit Wear and/ or running time Contact PS service team
x
x
Faulty electronics or invalid
parameters
1) Supply voltage
interrupted during
commissioning
2) Defective electronic
component
1) Reload parameters (‐> see
manual AMS‐PSCS), then
repeat commissioning
2) Contact PS service team
x
x
Critical or maximum temperature
reached
1) Too high numbers of
starts
2) Ambient temperature too
high
1) Check application and its
adjustment
2) Check ambient
temperature and try to
reduce it ‐> see relevant data
sheet
x
x Mechanical fault in the actuator
Defective mechanical part
Contact PS service team
TRACING FAULTS CHARTS (A/B ONLY)
