KAESER SIGMA CONTROL 2 User Manual

Message Possible cause Remedy
0043 W
External load signal?
External load signal unclear:
Increased cut-out pressure exceeded.
External load control has not switched to
IDLE.
Check external controller set‐
tings. Take pressure drop
across dryer or filters into ac‐
count.
0044 W
Oil temperature ↓
Cooling oil temperature too low. Check temperature switch,
line and connection.
Check cooling oil circuit.
Increase room temperature.
0045 W
DO test active
Test operation for manual actuation of in‐
dividual outputs is active.
Switch power supply off and
on again.
0046 W
System pressure ↓
Network pressure below specified “Net‐
work pressure low” value.
Air consumption too high.
Check air demand.
Check line path and sensor
connection.
Check “Network pressure
low” warning value.
0047 W
No pressure buildup
Machine does not produce compressed
air.
Working pressure does not rise above
3.5 bar within a specified time period.
Machine does not go into LOAD opera‐
tion
Minimum pressure check valve defective.
Check the machine for leaks.
Check coupling/V-belt.
Contact an authorized KAES‐
ER service representative.
0048 W
Bearing lube h ⇞
Re-grease motor bearings:
Maintenance interval expired.
Re-grease motor bearings.
0049 W
Annual maintenance
Last maintenance was 1 year ago. Carry out the required mainte‐
nance and reset the corre‐
sponding maintenance coun‐
ter.
0050 W
Fan bearing lube h ⇞
Maintenance interval expired. Re-grease fan bearings.
0051 W
Double aggregate
emergency operation!
For double-unit machines: Maintenance
or repair work on one of the units
Once the maintenance or re‐
pair work has been comple‐
ted, deactivate individual op‐
eration by resetting the corre‐
sponding selection from
single to Double
0053 W
Condensate drain 2
Condensate drain 2 faulty / not ready.
Too much condensate.
Line interrupted.
Condensate cannot be drained.
Check condensate drain and
condensate lines.
Check inlet conditions.
Check lines.
Check ECO-DRAIN.
0055 W
External counter 1
1)
0056 W
External counter 2
1)
10 Fault Recognition and Rectification
10.3 Interpreting warning messages
No.: 9_9450 13 USE
User Manual Controller
SIGMA CONTROL 2 SCREW FLUID ≥5.1.2
209

KAESER SIGMA CONTROL 2 Specifications

General

Controller Type	Microprocessor-based
Model	SIGMA CONTROL 2
Manufacturer	KAESER
Input Voltage	24 V DC
Protection Class	IP54
Communication Protocols	Modbus, Profibus
Data Logging	Comprehensive data logging
Remote Monitoring	Yes
Communication Interface	Ethernet