socomec ATyS C40 - Page 31

Controller ATyS
OPERATION
63
SOCOMEC - Réf. : 532 929 B
Automatic sequences
• Diagram 2:
source loss without reappearance before SSt state changeover
Complete genset loss
sst
GFt 1
dtt 2
< tF 1
OSF 1 -> 2
tF 2 x
Cdt 2
Cdt 1
tG 1 = 0.5xtF1 + the old tG 1
tG 2 = 1xtF2 + x + the old tG 2
Input
dtt 1
Position G1
Position O
Position G2
Start/stop order
Sensing
Start/stop order
Sensing
ATYS 526 B GB
• Diagram 3:
source loss and reappearance before SSt state changeover
Partial genset loss
sst
GFt 1
dtt 2
< tF 1
OSF 2 -> 1 OSF 1 ->2
tF 2 tF 1 x
Cdt 2
Cdt 1 dtt 1 Cdt 1
tG 1 = 0.5xtF1 0,5xFt1 + the old tG 1
tG 2 = 1xtF2 + x + 0.5xtF1 + the old tG 2
Input
dtt 1
Position G1
Position O
Position G2
Start/stop order
Sensing
Start/stop order
Sensing
ATYS 527 B GB
NB: in case of source 1 reappearance, it might be prefe-
rable not to retransfer immediately the load. Manual
retransfer feature can be activated if required from
keypad or remotely (cf. programming).