stertil-KONI ST 1082-F/BAT, Installation, Operation And Service Manual, Page: 32 / 52

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8.2 TROUBLE-SHOOTING
LED
INDICATION
POSSIBLE FAULT REMEDY
Potentiometer Fault
Check the wiring to the potentiometer.
Hold “SET REF” button for 2 sec until control light is on.
If the fault occurs again, contact the Stertil B.V. Service
Department.
Communication Fault
Check the connecting cables between the boxes. Connect one
auxiliary box to the main box using - preferably - new cables.
Start the system according to the standard procedure. Continue
extending the system by one auxiliary box until the defective
cable or box has been traced. If necessary, replace the
connecting cable or have the microprocessor board replaced by
the service department.
Hardware fault in the
communication circuit.
Check if all wires in the box and the communication cable are
connected. If the fault occurs again, contact the
Stertil B.V. Service Department
A defect in the control system
Set all main switches to OFF and then again to ON and press
the "SET REF" button twice. If the defect occurs again, contact
the service department.
defect in the 24V outputs
Set the main switches to OFF.
Check and if necessary replace fuse F2 (3, 15 A).. Turn the
control boxes on to ON according to normal procedure. When
this defect occurs repeatedly, contact the service department.
Since the last zero setting of the
system, height differences of over
2 1/2" have occurred during
operation.
Check the hydraulic system for leaks.
Check whether the load per lifting column is higher than
18,000 lbs Hold “SET REF” button for 2 sec until control light
is on. When the defect occurs again, contact the service
department.
A difference of 2 3/4" or over has
occurred during standstill.
Check whether the hydraulic system is leaking.
Hold “SET REF” button for 2 sec until control light is on.
When the defect occurs again, contact the service department.
Emergency stop
Check the emergency stop switches and release them if
necessary.
Hold “SET REF” button for 2 sec until control light is on.
Fault in the unlocking solenoid
circuit
Fault in lowering valve circuit
Fault in adjusting valve circuit
Check the wiring and coil for short-circuits or damage and repair
if necessary. Hold “SET REF” button for 2 sec until control
light is on. If necessary contact the service department.