CLINK II SCU MANAGER
troubleshooting guide
version 5.0
60
The State Transition Diagram contains the following transitions (see table 55):
Note
The digital outputs are active in the Operational state only. In all the other operational states they are low.
6.3
Status Module LED
The bi-color (green/red) Module LED provides information regarding the SCU status. It indicates whether or
not the SCU has power and is operating properly, see table 56. For an overview of operational modes and
transitions see figure 22 on page 59.
Major Recoverable Fault
The device has experienced a major fault that is believed to be
recoverable (see 6.5).
Major Unrecoverable Fault
The device has experienced a major fault that is believed to be
unrecoverable (see 6.5).
Table 55: Overview of transitions
Transition
Trigger
Power Applied
The device is powered up (> 21.8 V).
Power Loss
The device is powered down (< 19.8 V).
Test Passed
The device has successfully passed all self tests.
Test Failed
The device has detected a fault during the self test.
Activated
The device has been successfully configured.
Deactivated
The device has received new parameters.
Minor Fault
A fault classified as either Minor Unrecoverable Fault or Minor
Recoverable Fault has occurred (see 6.5).
Major Recoverable Fault
A fault classified as Major Recoverable Fault has occurred (see 6.5).
Major Unrecoverable Fault
A fault classified as Major Unrecoverable Fault has occurred (see 6.5).
Fault Corrected
The device has received new parameters that are believed to be
correct.
Table 56: States of the Module LED
LED is
State
Indication
Off
Nonexisting
There is no power applied to the device.
Solid Green
Operational
The device is operating normally.
Flashing green
Standby
The device needs commissioning. Download all parame-
ters.
Table 54: Description of operational modes
State
Description