socomec ATyS Série Notice D'utilisation page 125

7.6. Automatic sequences (cont.)
7.6.3. Return to priority source
This sequence is activated as soon as the changeover switch is in automatic mode and in emergency position (position II) :
1
• the priority source is not available,
• the changeover switch is in emergency position (ex: genset),
2
• the emergency source is 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.
7.4.5-2
Sequence description
Generator running (emergency source) &
Main's
return
To loss of priority
source sequence
Priority source unavailable
Switch in position II
Priority
No
source
return?
Manual re-transfer
Yes
MRT = 0
Count down
MRT
Priority source
lost again
before MRT
times out?
Reset MRT
Transfer II
Count Down OMR
Transfer 0
Reset CDT
7. opEratIoN atyS 6s and 6e
7.6.3-1
Mode
Yes
semi-auto
activated ?
(Mtf)
No Yes
Validation
OMR 0?
Yes
> 0
OMR = 0
> I Transfer II
Transfer II
Count Down CDT
Loss of priority source
CDT = 0
Stop generator
position 1
Back to priority source control
Manual re-transfert
= validation press
optional input acti-
vation, feature Mtf
Yes
Loss of
priority source ?
No
No
> I
> I
ATyS 3e, 6e, 6s - Ref.: 531 848 G GB
Or
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