10 Fault Recognition and Rectification
10.1 Basic instructions
The following tables are intended to assist in locating faults.
SIGMA CONTROL 2 will indicate three types of faults:
■ Fault on the machine:
The
red LED
flashes, the machine is shut down, see chapters 10.2 and 10.5.
■ Fault on the controller:
The machine is shut down, see chapter 10.6.
■ Warning:
The
yellow LED
illuminates, the machine is not shut down, see chapter 10.3.
The messages valid for your machine are dependent on the controller and individual equipment.
1. Do not attempt fault rectification measures other than those given in this manual!
2. In all other cases:
Have the fault rectified by an authorised KAESER SERVICE technician.
10.2 Interpreting fault messages
If an input signal is classified as a fault, the controller will display the fault upon the signal's
arrival.
Consequences:
■ The
red LED
flashes:
■ The controller switches the machine off.
Fault messages are identified with the letter A.
The message numbers are not numbered consecutively.
In this table, you will see "%d" for a variable value, e.g. a number, duration or I/O address.
1)
Messages 0021, 0074–0075 and 0092-0096 are customer-specific.
Complete possible causes and remedies for your defined message text (see chapter 8.8).
Message Possible cause Remedy
0001 A
Emergency stop
EMERGENCY STOP com‐
mand device actuated.
Check operational safety.
Unlatch the push button.
0002 A
Overload blower motor
Overload shut-down of the
drive motor.
Investigate cause of shut-down.
Check the drive motor.
Check operating conditions.
0003 A
Fan motor
Current draw of the fan
motor too high.
Defective fan motor.
Fan wheel is jammed or
damaged.
Check fan
Check operating conditions.
10 Fault Recognition and Rectification
10.1 Basic instructions
No.: 901700 10 E
Service Manual Controller
SIGMA CONTROL 2 BLOWER ≥ 2.5.3
151
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