socomec ATI 1250 A - LOSS OF MAINS AUTOMATIC SEQUENCE

SOCOMEC - Réf.: 678 623 G GB 55
ENGLISH
BASIC PRODUCT USE (continued)
This Sequence is started as soon as
the switch is in automatic mode and in
position 1.
Position 1:
• Mains is available
• Switch is in position 1 (Mains)
• Generator is on or off
Remote AT timer Inhibit
It is possible to bypass the At timer
using the ATI input (closing the contact)
when At timer setting is at its maximum
value = 60s.
• Active when At = At Max = 60 s
(cf programming mode).
• When input ATI (terminals 7-8) is high,
At is bypassed.
LOSS OF MAINS AUTOMATIC SEQUENCE
Specific features
Sequence description
Reset 2MT
Stop gen
Automatic mode
Power Cap Activation
until Genset availability
Loss of main?
Count down 2MT
Reset AT
Start Genset
No
No
No
No
No
Gen fails
Yes
Yes
Yes
Yes
Yes
AT = 0
2MT = 0
Main comes back
before 2MT ends?
Loss of
mains?
Genset
start up
Transfer 1 >2
ATI = AT
max ?
Mains avaible ?
Generator
available?
Count down AT
Transfer 1 > 0
Count down DBT
Transfer 0 > 2 Transfer 1 > 2
Go to mains’
return automatic
sequence
DBT ≠ 0 ?
No
Yes
DBT = 0
ATI = 1 ?
ATI 083 A