socomec ATys C20 User Manual

Automatic sequences
Controller ATyS
OPERATION
ATyS C20/C30
62
SOCOMEC - Réf.: 532 214 C
Presentation
Operational modes
Programming
Operation
Visualisation
Automatic sequences
RETURN TO PRIORITY SOURCE
This sequence is activated as soon as the changeover
switch is in automatic mode and in emergency position
(position II):
• the priority source is not available
• the changeover switch is in emergency position (ex:
genset)
• the emergency source is available.
2
1
> Specific feature: manual re-transfer
• When priority source comes back, it can be required
not to automatically retransfer and wait for a more
adequate moment.
• It is possible, validating manual retransfer feature (refer
to programming), to block the re-transfer.
It is initiated from:
• validation push button localy or on ATyS D20
• via a programming input if MTF option is selected.
ATYS 143 B
Manual retransfer
= validation press
Or
optional input acti-
vation, Mtf feature
Reset MRT
Priority source unavailable
Generator running (emergency source) &
Switch in position II
Priority
source
return?
Count down
MRT
Transfer II > 0
Count Down OMR
Transfer 0 > I Transfer II > I
No
Yes
Yes
Yes
Yes
OMR = 0
No
No
MRT = 0
OMR ≠ 0?
Validation
CDT = 0
Count Down CDT
Reset CDT
Mode
semi-auto
activated ?
(Mtf)
Transfer II > I
Stop generator
position 1
Back to priority source control
Yes
No
Priority source
lost again
before MRT
times out?
Main’s
return
Manual re-transfer
To loss of priority
source sequence
Loss of priority source
Loss of
priority source ?
ATYS 155 A GB
> Sequence description

socomec ATys C20 Specifications

General

Brand	socomec
Model	ATys C20
Category	Controller
Language	English