socomec ATys C20 User Manual

Variable Description
S1A Source 1 available.
Output activated as soon as source 1 is considered available (similar to front led source 1)
S2A Source 2 available.
Output activated as soon as source 2 is considered available (similar to front led source 2)
LS Load shedding relay. LS timer corresponds to time available to disconnect the shed loads.
The relay is activated before permutation on standby network according to LS timer.
The relay is de-activated after retransfer on mains network and LS timer countdown
Programming
Controller ATyS
OPERATION
55
SOCOMEC - Réf.: 532 214 C
> Inputs/Outputs Menu
Outputs
DTT timer
LS timer
Priority source -
emergency source
transfer
LS relay Activation
Emergency source -
priority source
transfer
LS timer
Output Function Default Value Setting range
For LS: For LS:
S1A, S2A, LS, / 0 to 60 s (≤ DTT)* 3 s
1 2
1 2
In case of LS function selection, it is required to configure associated LS timer.
• Example: LS configuration (output relay Ou1, 3 seconds):
• Load shedding cycle
1 2
1 2
The output is de-activated in case of loss of
power. It may then be required to put in
parrallel with the load shedding ouptut relay,
position 2 auxiliary contact. This would avoid taking
back the load in case of loss of emergency source in
emergency position.
Position II (emergency) AC activation
1 2
LS AC II Load shedding output
ATYS 269 A
The load shedding can’t be used with the priority
network (priority source = source ). In this case, LS
output is not valid.
2
ATYS 334 A GB
* In case of DTT variable configuration below LS, LS will be automatically set to DTT value.

socomec ATys C20 Specifications

General

Brand	socomec
Model	ATys C20
Category	Controller
Language	English