ABB AC 900F - Page 45

Section 3 Modules CI 910F CAN Bus interface
M&I – AC 900F Controller 45
LED status displays
After having been switched on, the CI 910F CAN Bus module performs a self-test
during power-up. During initialization, with newly configured modules or after a
change of the operating mode, all LEDs may light up briefly before reaching the
defined status.
LED Color Status Meaning
PWR Green ON Module in operation and must not be removed
OFF Module not in operation and may be removed,
if required
STA Green ON Active module operating properly
OFF Module start-up
Orange ON Module identified by the CPU module, but inactive
Red OFF Module under power, but not yet identified or module
failure
L1 Green Flashing Communication on CAN 1 channel
OFF No communication
Yellow Flashing Sporadic transmission error
Red Flashing Transmission interrupted (bus off mode)
L2 Green Flashing Communication on CAN 2 channel
OFF No communication
Yellow Flashing Sporadic transmission error
Red Flashing Transmission interrupted (bus off mode)
L3 Green Flashing Communication on CAN 3 channel
OFF No communication
Yellow Flashing Sporadic transmission error
Red Flashing Transmission interrupted (bus off mode)