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.
3.
TEST SIMULATION WITH NEGATIVE RESULT AT THE POWER ON:
after the alarm generated at the step 2) switch on and off the power supply make sure that the alarm
remains active, then press the reset button for approximately 5 seconds to reset the faulty condition.
4.
TEST SIMULATION WITH NEGATIVE RESULT (contact failure to close):
a.
Disconnect the electromagnet from the output O1
b.
With the system stopped at the bottom floor and with closed doors, turn on the test input (T1
to GND, T2 to 24VAC/DC) by means of an external pushbuttons. After the pending time
(30s), the test sequence will start opening the output O1. The NCBM will check the opening
of the contact, but since there will be no its closure an alarm will be generated.
5.
Repeat test 3
6.
Checks the time and eventually set it to the correct value.
Option 2:
1.
TEST SIMULATION SUCCESSFULLY PERFORMED
: With the system stopped at the bottom
floor and with closed doors, turn on the test input (T1 to GND, T2 to 24VAC/DC) by means of an
external pushbuttons. After the pending time (30s), an impulse will be sent to the output O1. If the
contact of the microswitch connected to the OSG will perform the correct sequence: opens when O1
opens, closes when O1 recloses, the test will end with positive result.
2.
TEST SIMULATION WITH NEGATIVE RESULT
(contact failure to open):
a.
Jumper output O1 so that the electromagnet remains always powered
b.
With the system stopped at the bottom floor and with closed doors, turn on the test input (T1
to GND, T2 to 24VAC/DC) by means of an external pushbuttons. After the pending time
(30s), the test sequence will start sensing an impulse to the output O1. The microswitch will
not change the state and an alarm will be generated.
3.
TEST SIMULATION WITH NEGATIVE RESULT AT THE POWER ON
after the alarm
generated at the step 2) switch on and off the power supply make sure that the alarm remains active,
then press the reset button for approximately 5 seconds to reset the faulty condition.
4.
TEST SIMULATION WITH NEGATIVE RESULT (contact failure to close):
a.
Disconnect the electromagnet from the output O1
b.
c.
With the system stopped at the bottom floor and with closed doors, turn on the test input (T1
to GND, T2 to 24VAC/DC) by means of an external pushbuttons. After the pending time
(30s), the test sequence will start opening the output O1. The NCBM will check the opening
of the contact, but since there will be no its closure an alarm will be generated.
5.
Repeat test 3
6.
Checks the time and eventually set it to the correct value.
9.5 PERIODICAL CHECKS
The tests described above are to be repeated during the maintenance visits and / or according to the indication provided
by the manufacturers of the stopping elements (valves, brakes or limiter)
The frequency of the monitoring tests with regard to the valves and limiters type 2 are to be set in agreement with the
indications prescribed by the valves or OSG manufacturer
