13
Number 10009655. A1
Off
Inactive
Please note the following points:
1 The small circle in each state box indicates the condition of the
FCM-802/804 status pin. This is low (black: ) in all states apart from
fuel cell running where it is high (white: ).
2 In all states, removing the Enable signal returns the FCM-802/804 to the
module controller off state.
3 If the FCM-802/804 enters a fault condition the fault is latched. The Enable
line must be cycled to clear it.
4 For start and stop criteria see section 13 Control parameters and standard
factory setting.
Fault state
Standby
Auto start criteria
Auto stop criteria
Starting
Shutdown
Shutdown
Fault trip
State map for the FCM-802/804
Power down
Power up
Enable off
Running
7.4
FCM-802/804 software states
The FCM-802/804 has five possible states:
· Off
· Inactive
· Running
· Standby
· Fault
FCM commands and status
7