Behavior Of The Controller In Case Of Error; Internal Error Counter; Error Warning - Intec MLC 8000 Operating Manual

INTEC GmbH
Lift controller MLC 8000
22/12/2016
Operating manual V2.0
With the error counter it can be detected whether certain errors, such as CAN-bus faults or
door errors occur frequently and it is thereby possible to start troubleshooting before the lift
goes out of order.

4.6 Behavior of the controller in case of error

When the lift controller diagnoses a fault, then the car will, depending on the type of error,
immediately stopped or even attempted to go to the next floor.
Then the lift controller enters the error state. Calls are not cleared at this moment. If the
problem is eliminated again, the lift controller mainly goes back to normal operation.
Only after a waiting period (parameter " Err.delay
cause of the error is still there, all calls are cleared and blocked. Inspection control and
emergency recall operation remain active even in the event of a fault. Hydraulic lifts
evacuate, if possible, in the lowest floor.

4.7 Internal error counter

With each occured error an internal error counter is increased by a defined value. The value
by which the counter is incremented, depends on the type of error.
When the error counter reaches the maximum value of 100, then the lift goes out of
operation. In state display 1 "defective" appears.
When starting any trip the internal error counter is decreased by 1 (unless the value is
already 0).
This internal error counter is implemented to make sure the lift goes out of operation in case
an error occurs very often. On the other side, the lift goes not out of order, if the same error
occurs only sporadically and at longer intervals.
The error counter may be erased (set to 0) by the following actions:
- Switching off mains power supply (not necessary to remove HSE battery)
- Switching on the inspection control
- Switching on the emergency recall operation
- Pressing the reset button on the HSE

4.8 Error warning

By single faults the lift may remain in operation because of the error counter as described
above.
Regardless of that a second counter is incremented by a similar mode, which outputs an
error warning when it reaches a certain value. Then "Maintenance!" Indication appears in the
status display 1 alternating with the current lift state.
If this text is displayed, error memory and error stack should be studied carefully in order to
identify any "creeping" faults on time before a total failure of the controller happens and it can
be fixed.
If there is a failure of ESE or TSE module the message "Maintenance" is displayed
immediately ,regardless of the current state of the counter. Through this text it is therefore
pointed to defect TSE / ESE-assemblies because the lift remains in operation in this case.
" in menu " Timer parameter ") if the
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