10. Faults
All fault messages are displayed via the light-
emitting diode
as centralized alarm.
When a fault message is output, the control unit
stops the normal sequence of operations, and the
fault which has occurred is stored and displayed.
The cause of the fault can be seen from the LED
seven-segment display. This considerably facilitates
fault diagnosis, necessitates monitoring of the
system, however.
10.1
Display faults
Start the display mode with one of the two keys
Display
Meaning
Pressure switch fault:
No signal is received from pressure switch during pump running time.
Cycle switch fault:
No signal is received from cycle switch during pump running time.
Low level:
The level in the reservoir has dropped below the minimum limit.
The sequence of operations is stopped.
10.2
Clear fault message
All fault messages can be acknowledged and
cleared with this key
. In the timer mode, this
can also be performed with a connected external
pushbutton.
Determine and rectify cause of fault
before clearing the fault message.
The user himself is liable for any damage
resulting from operating the vehicle without
lubrication.
The time for which the control unit and pump
unit are operated without lubrication is indelibly
stored as fault hours FH in the EEPROM.
Page 29
Contents
Chapter
10
Operating Instruction Universal Control Unit IG502-E
Faults are displayed:
Central
Lubrication