MANUAL NCBM 01 Revision 14 11/06/2021
STEM S.r.l. via della Meccanica, 2 I-27010 Cura Carpignano- Pavia Italia Tel. +39 0382 583011 Fax +39 0382 583058 www.stemsrl.it [email protected]
Subject to change without notice, no responsibility will be taken for every detail. © STEM S.r.l.
4.3 Working principle in case of OSG actuated only in the event of uncontrolled
movement
The NCBM01 unit allows to configure, using the SW interface, the time at which you want to run the test and its
frequency (eg once a day). If the following conditions are true:
•
elevator stopped for at least 30s
•
elevator to the lowest floor
•
closed doors
•
test time
•
Led configuration to start the test: LED2,5 on, LED3 flashing
one of the following tests will start
Test option1:
1.
the power supply contact of the electromagnet (O1) will be open
2.
In a maximum time of 3 seconds the NCBM checks the microswitch status installed on the OSG (NC closed
when OSG free to move, LED2 off)
3.
if the contact remain closed the alarms will be activated.
4.
If there were no alarms, the electromagnet is power supplied again (LED2 ON)
5.
The contact will close again, if it remains open the alarm will be activated.
Test option2 (to be used for example in conjunction with the product Stem NCUMxx):
1.
A test impulse of 300ms is sent on the O1 output
2.
After a set time (default 3s) the status of the microswitch installed on the OSG is checked (NC closed
when OSG free to move, LED2 OFF then ON)
3.
If the test fails, the alarms will be activated
In both cases the signaling outputs activated are:
• TW (test warning), thirty seconds before the execution of the test and for the duration of the whole test, to signal
to the control cabinet the test coming and to perform the commands necessary for the preparation of the test : door
closing, lowest floor, stop of the elevator
• O2 about 10 seconds before the test is performed, to signal the imminent execution of the test to the control
panel. This information is useful to prevent a up/down command given at the same time of the O1opening, that
may cause the operation of the safety gear.
During the waiting phase of the test (30s), the commands UP, down, door opening and lowest floor if activated will
delay the test execution.
4.4 Signaling
LED
Normal working
Test pending
Alarme activated
LED1(Green)
UP/down (On if active)
UP/down (On if active)
On
LED2
(Green)
OSG contact (On if closed)
OSG contact (On if closed)
On
LED3
(Green)
ON
Test pending (blink.)
Off
LED4
(Green)
Doors (On if open/Off
closed)
Doors (On if open/Off
closed)
Off
LED5
(Green)
Lowest floor (On at floor)
Lowest floor (On at floor)
Off
ALL (RED)
Alarm (Off)
Alarm (Off)
Alarm (On)
Unit blocked, relay fault ON, restore using the reset
button
TAB. 5 Signaling for OSG application
