Kone MX20 - Broken Rope, Tape or Chain Switch; Testing of Ascending Car Overspeed Device

KONE Maintenance Method
MX10 / MX20 MCP Procedures - ASME A17.1-2013 / CSA B44-13
© 2014 KONE Corporation PSK8-604-MX10/MX20
All rights reserved.
78 (-) 2014-12-15
8.6.4.19.9: BROKEN ROPE, TAPE OR CHAIN SWITCH
Category 1 testing of broken rope, tape or chain switch
While in the inspection mode on the car top, operate the broken rope, tape or chain switch and
attempt to move the car using the top-of-car operating device.
8.6.4.19.10: FUNCTIONAL SAFETY OF SIL RATED DEVICE(S)
Check the functionality of all E/E/PES electrical protective devices to ensure they operate as
designed.
8.6.4.19.11: ASCENDING CAR OVERSPEED PROTECTION AND UNINTENDED CAR
MOVEMENT DEVICES.
Category 1 Check of Ascending Car Overspeed Protection Device
1) Verify governor has been tested and electrical switch will open at correct speed.
2) Manually operate governor electrical switch.
3) Verify following actions occur:
• Both K464 relays on ADON2 drop.
• Main contactor 201 drops or will not energize.
• Emergency brake drops or will not energize.
• Faults 177 and 178 appear on UI.
If all preceding actions occur, ascending car overspeed protection is functioning correctly.
Category 1 Testing of Ascending Car Overspeed Device
Perform ascending car test only after verifying that ascending car function is functioning
correctly.
1) Make sure car is empty.
2) Disable hall calls by using inhibit landing calls switch on CPU.
3) Disable doors by using inhibit door opening switch on CPU.
4) Give a car call to bottom terminal landing.
5) After elevator arrives at bottom floor, put elevator on machine room inspection, switch 270 down.
6) Turn off power.