15 Interpreting fault messages
Alarm messages are identified with the letter A.
The message numbers are not numbered consecutively.
Messages 0081 to 0095 are customer-specific and may differ from the suggested values. Com‐
plete them with your defined message text, possible causes, and remedies.
Message Possible cause Remedy
0001 A
Direction of rotation
The compressor drive motor
is turning in the wrong direc‐
tion.
Change over
phase lines L1 and
L2.
0002 A
Motor temperature ⇞
Compressor drive motor over‐
heated.
Clean the motor.
Keep ambient con‐
ditions within
specified limits.
0003 A
pRV ⇞
The activating pressure of the
pressure relief valve on the oil
separator tank has been ex‐
ceeded.
Change the safety
relief valve.
0004 A
EMERGENCY STOP
EMERGENCY STOP push
button actuated.
Unlatch the push
button.
0005 A
Oil separator Temperature ⇞
Maximum air temperature at
the oil separator tank outlet is
exceeded.
Check the line to
the trip relay.
0007 A
Power supply monitor
Fault in main power supply. Have the main
power supply
checked.
0009 A
SIGMA CONTROL 2 T⇞
Permissible enclosure tem‐
perature for
SIGMA CONTROL 2 exceed‐
ed.
Keep ambient con‐
ditions within
specified limits.
Control cabinet:
Check filter mats
and fan.
0010 A
Blow-off protection ⇞
The activating pressure of the
safety relief valve on the oil
separator tank has been ex‐
ceeded.
Change the oil
separator car‐
tridge.
Open the shut-off
valve in the venting
line.
0011 A
Oil-/air cooler fan Overcurrent
Overload shut-down of the
first fan motor.
Investigate cause
of shut-down.
Reset the overload
relay.
0012 A
Access doors
Door open / interlocked panel
removed while the machine is
running.
Fit and secure all
panels and close
access doors.
15 Interpreting fault messages
26
Quick user guide Controller
SIGMA CONTROL 2 SCREW FLUID 1.1.3 9_9450 03 USE
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