112 BBV28581 05/2010
Diagnostics and Troubleshooting
Fault detection codes displayed on the remote display terminal(1) Flashing
Code Name Description
InIt On initializing itself • Micro controller initializing
• Communication configuration search
COM.E
(1)
Communication error • It has 50ms time out error.
• This message is shown after 220 retry attempts.
A-17
(1)
Key alarm • Key has been pressed consecutively for more than 10 seconds.
• Membrane switch disconnected.
• Keypad woken up while a key is being pressed.
cLr
(1)
Confirm Fault reset • This message appears if the STOP key is pressed when there is a keypad fault.
dEU.E
(1)
Drive mismatch • Drive type (brand) did not match with keypad type (brand)
?
rOM.E
(1)
ROM abnormality • Keypad ROM abnormality detected by the checksum calculation.
rAM.E
(1)
RAM abnormality • Keypad RAM abnormality detected.
CPU.E
(1)
The other defect • The other detected fault.