4B - W4005 BÜHLER ELEVATOR MONITORING SYSTEM R9.6 – 22 May 2020
Page
41
of
48
14.
Maintenance Procedure
DANGER:
EXPOSED BUCKETS AND MOVING PARTS WILL CAUSE SERIOUS INJURY OR
DEATH. THE OPERATOR MUST ALWAYS LOCKOUT POWER BEFORE REMOVING COVER OF
THE INSPECTION DOOR OF THE ELEVATOR OR PERFORMING ANY INSTALLATION OR
MAINTENANCE WORK.
DANGER:
ALL ELECTRICAL POWER TO THE SYSTEM AND WIRING MUST BE ISOLATED PRIOR
TO STARTING ANY INSTALLATION OR MAINTENANCE WORK. WORKING ON OPEN LIVE
CIRCUITS IN ATEX ZONES IS PROHIBITED AND CAN LEAD TO AN EXPLOSION.
Even though this system conforms to ISO13849 Cat 2 PLd, 4B recommends that the system and all of its
components are inspected at least once every 6 months. Below is the procedure that the end user must
adhere to in order to maintain the system in a safe state.
1)
Inspect that all the cabling is in good state and that all the electrical connections, including the
terminal blocks in the junction boxes are secure and in good order
2)
Make sure there is no water damage to the inside of the controller or any junction boxes used
3)
Verify that the TouchSwitch sensors are operational by following the procedure stated in 9.6.2 -
Testing and Commissioning
4)
Verify that the speed sensor and the Whirligig are securely mounted on the shaft
5)
Verify that the configuration switches of the W4005NV46AI /B controller are set as intended. Please
refer to 10.13 - Settings Switches for more information.
6)
Perform the W4005NV46AI /B controller simple test to check that all the LEDs are in working state.
Please refer to 10.16.1 - Simple Test for the explanation of this procedure.
7)
Perform the W4005NV46AI /B controller extended test while elevator is running to verify that the
W4005NV46AI /B can stop the elevator. This is needed to make sure that the control wiring is correct
and has not been modified since the last test. Please refer to 10.16.2 - Extended Test for the
explanation of this procedure.
IF THE SYSTEM DOES NOT ALARM AND SHUTDOWN AS REQUIRED, THEN REMOVE THE
MACHINE FROM SERVICE UNTIL THE PROBLEM HAS BEEN DIAGNOSED AND CORRECTED.
