socomec ATyS 6m Notice D'utilisation page 109

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
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Specific feature: manual re-transfer
• When priority source comes back, it can be required
not to automatically retransfer and wait for an 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, Mtf feature.
>
Sequence description
SOCOMEC - Réf. : 532 211 F
Priority source unavailable
Generator running (emergency source) &
Switch in position II
Main's
return
No
Priority
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
Yes
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
is available.
Manual re-transfert
= validation press
Or
optional input acti-
vation, feature Mtf
Yes
Loss of
priority source ?
No
Validation
No
Transfer II > I
Transfer II > I
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