AS-10.22.027
24 (54)
(-) 2006-11-10
KONE MonoSpace®
Maintenance Instruction
© 2006 KONE Corporation
All rights reserved.
Disclosure prohibited
APPENDIX C. LON COMMUNICATION IS NOT WORKING
C.1
+24V Car and Shaft OK Led is OFF
Step
Check
Possible cause
Action
1
Access the SEP and check if
LCEREC/Car 24V Led (D14)
is OFF?
Probably a short circuit or
overload in the car side.
Proceed to Step 1a.
a
Turn the power OFF for a
minute and then turn it back
ON: The system does not
recover?
Probably a short circuit or
overload in the car side.
Proceed to Step 1b.
b
Check the cables. Any loose
or damaged cables?
Defective or loose cables.
Connect loose cables
properly.
Replace damaged cables.
c
If the system does not
recover, disconnect F2KMUL
board.
If the fault did not disappear,
disconnect LCECCB board.
Did the fault disappear?
NOTE! Multifuse on
LCEREC needs
about 1 minute
power off to recover.
Defective F2KMUL or
LCECCB board.
Replace the defective board.