socomec ATys C20 - Page 29

Automatic sequences
Controller ATyS
OPERATION
61
SOCOMEC - Réf.: 532 214 C
> Sequence description
Example:
position I = priority source ( )
position II = emergency source type Genset ( )
2
1
Reset MFT
Stop gen
Automatic mode
Loss of main?
Count down MFT
Reset DTT
Start Genset
No
No
No
Gen fails
Yes
Yes
MFT = 0
Main comes back
before MFT ends?
Loss of
mains?
Genset
start up
Transfer I > I I
Priority
source?
Count down
DTT = 0
Transfer I > 0
Count down OMF
Go to priority source
return automatic
sequence
OMF 0 ?
No
No
No
Yes
Yes
OMF = 0
CTS = 1 ?
Transfer 0 > II Transfer I > I I
Yes
Emergency
source
available?
ATYS 443 A GB