Test Of The Safety Functions Of The Lift Control (Technical Inspection); Automated Test; Testing The Safety Circuit For Moving With Open Doors - Intec MLC 8000 Operating Manual

INTEC GmbH
Lift controller MLC 8000
22/12/2016
Operating manual V2.0
6. Test of the safety functions of the lift control (Technical
inspection)
Most safety features of the lift controller are implemented through safety switches or safety
circuits. This section only describes the functions in which control software or the hardware
of the control modules get involved in the implementation of the safety function.
Partial parameters must be changed for testing a function. In this case, the parameters
should not be permanently stored, so that after a system-reset, the original parameter values
are available again.
If the internal error counter has reached its limit due to tests carried out (state display 1
shows "!Repair!"; see chapter "Error counter"), then the error counter can be cleared by
activating the emergency recall operation switch for a few seconds. After switching off this
switch again, the controller returns to normal operation.
To test the safety features there are 2 different ways:
1. A largely automated way can be automatically carried out the required interventions in
the control sequence of the lift controller and the auditor has to start only this menu
item.
2. A "conventional" way, at which parameters are manually adjusted or cables must be
clamped.
For both ways basic knowledge to use the control menu is required.
If any test is done, hydraulic lifts always run to lowest floor before they stop operation
("E.Homing").
Below both options are described.

6.1. Automated Test

6.1.1 Testing the safety circuit for moving with open doors

The lift must be in normal operation. To start the test the menu item "Technical check" ->
"Open door safety" must be selected.
On the HSE or handheld terminal the actual floor is displayed in the top line. In the 2nd line
the actual lift state is displayd (normally "Standstill", "Moving" or "Arrival").
If the lift is in "Standstill" state, the controller sets a car call to any other floor. When starting
the trip to this floor the lift controller will not switch off the door zone signal (KH7 stays on).
When arriving the destination floor the door lock overbridging is not carried out and the lift
displays the error "KH5 n.on".
Since the safety circuit is in the wrong switch state after this test, a reset of the error can be
carried out only by turning off the control voltage (or the main switch) incl. disconnecting the
battery cable.
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