Message Possible cause Remedy
1120 W
AIR%d.0%d - open
circuit
Wire break in line for indicated analog in‐
put.
Check line path and sensor
connection.
1121 W
AIR%d.0%d - sensor
fault
Sensor fault at indicated analog input. Check line path and sensor
connection.
1122 W
AIR%d.0%d - open
circuit
Wire break in line for indicated analog in‐
put.
Check line path and sensor
connection.
1202 W
AII%d.0%d - error
power supply
Power supply for ext. sensor at analog in‐
put faulty.
Check power supply.
1203 W
AII%d.0%d - overload
fault
Overload at analog input for ext. sensor. Contact an authorized KAES‐
ER service representative.
1204 W
AII%d.0%d - open
circuit
Wire break in line for ext. sensor at ana‐
log input.
Check line path and sensor
connection.
1205 W
AII%d.0%d - short-
circuit
Short circuit in line for ext. sensor at ana‐
log input.
Check line path and sensor
connection.
1208 W
AII%d.0%d - error
power supply
Power supply for ext. sensor at analogue
input faulty.
Check power supply.
1209 W
AII%d.0%d - overload
fault
Overload at analog input for ext. sensor. Contact an authorized KAES‐
ER service representative.
1210 W
AII%d.0%d - open
circuit
Wire break in line for ext. sensor at ana‐
log input.
Check line path and sensor
connection.
1211 W
AII%d.0%d - short-
circuit
Short circuit in line for ext. sensor at ana‐
log input.
Check line path and sensor
connection.
1214 W
AII%d.0%d - error
power supply
Power supply for ext. sensor at analogue
input faulty.
Check power supply.
1215W
AII%d.0%d - overload
fault
Overload at analog input for ext. sensor. Contact an authorized KAES‐
ER service representative.
1216 W
AII%d.0%d - open
circuit
Wire break in line for ext. sensor at ana‐
log input.
Check line path and sensor
connection.
1217 W
AII%d.0%d - short-
circuit
Short circuit in line for ext. sensor at ana‐
log input.
Check line path and sensor
connection.
10 Fault Recognition and Rectification
10.3 Interpreting warning messages
222
User Manual Controller
SIGMA CONTROL 2 SCREW FLUID ≥5.1.2 No.: 9_9450 13 USE