socomec ATyS 3e Notice D'utilisation page 125

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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
1
is not available
>
Specific feature: manual re-transfer
• When priority source comes back, it can be required
not to automatically retransfer and wait for a more
adequate timing.
• 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 an input on optional module 2I / 2O on ATyS 6e,
Mtf feature.
>
Sequence description
SOCOMEC - Réf.: 531 848 F
Priority source unavailable
Generator running
(emergency source) &
Switch in position
II
Main's
return
Priority
No
source
return?
Yes
MRT = 0
Count down
MRT
Priority source
lost again
before MRT
times out?
Reset
MRT
To loss of priority
Reset CDT
source sequence
Automatic Transfer Switch ATyS
• the changeover switch is in emergency position (ex:
genset)
• the emergency source
2
Manual re-transfer
Mode
semi-auto
activated ?
(Mtf)
No
Yes
OMR ≠ 0?
Yes
Transfer II
> 0
Count Down
OMR
OMR = 0
Transfer 0
> I
Count Down
CDT
Loss of priority source
CDT = 0
Stop generator
position 1
Back to priority source control
OPERATION
ATyS 6s & 6e
is available.
Manual re-transfert
= validation press
optional input acti-
vation, feature Mtf
Yes
Loss of
priority source ?
No
Yes
Validation
No
Transfer II
> I
Transfer II
> I
Or
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Atys 6sAtys 6e

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