Böhnke + Partner bp308, Installation Manual

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8.2.2 Functional Description of Voltage Test
Module STM-02
As soon as STM-02 has been installed properly, the control circuit 24
V DC is not earthed. With the lift system switched on, any over-
voltage within the control circuit towards »PE« does not result in a
fault current, removing the risk of bp308 components being destroyed
.
C
AUTION
!
•
STM-02 signalises over-voltages in the control circuit with an LED
and a buzzer. At that moment, there is danger in the area of the
control voltage.
•
If STM-02 signalises a fault, switch the lift off at once, find the fault
and eliminate it.
The fault message is stored by a bistable relay and remains in
memory even if the control voltage is switched off and on again. To
reset the unit to its original mode after rectifying a fault, press the
reset button on the casing of STM-02 .
CAUTION
!
•
Immediately after finishing all work, connect the green/yellow PE-
line to terminal 100 within bp308 again!
•
Remove STM-02 from the control unit.
8.3 Technical Tips Concerning the Control Unit
5. Error-free and safe operation of the product is subject to appro-
priate transport, storage, erection and installation as well as to
careful operation and maintenance.
6. The control unit has been designed, manufactured and tested in
accordance with DIN EN 81 and the VDE regulations. You must
adhere to the relevant regulations for the commissioning of elec-
tric control unit and operating devices. You should also follow the
local lightning protection rules. Each control unit comes with cir-
cuit diagrams and technical documentation clearly identified by
the control unit number.
7. The control system bp308 exclusively serves as an information
processing device within the lift control system. All control signals
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