7.6. Automatic sequences (cont.)
7.6.2. loss of priority source automatic sequence (cont.)
Sequence description
Example:
• position I = priority source (
• position II = emergency source type Genset (
7.4.5-2
Loss of
mains?
124
ATyS 3e, 6e, 6s - Ref.: 531 848 G GB
1
)
2
)
Automatic mode
No
Loss of main?
MFT = 0
Count down
MFT
Main comes back
before MFT ends?
Reset MFT
No
Yes
Priority
Stop gen
source ?
Reset DTT
Gen fails
Transfer I
> 0
Count down OMF
OMF = 0
Transfer 0
> II
7. opEratIoN atyS 6s and 6e
Genset
start up
Start Genset
Yes
Emergency
source
available ?
No
Yes
DTT = DTTmax ?
No
CTS = 1 ?
Count down DTT
Yes
DTT = 0
Yes
No
OMF 0 ?
Transfer I
> II
Transfer I
> II
Go to priority source
return automatic
sequence
Count down
DTT
DTT = 0