Circuit Breakers Control; With Feedback (Default Setup) - LEGRAND 261 93 Mode D'emploi

5. Circuit breakers control

• The circuit breakers control is carried out through
two separate relays, one for closing and one for
opening.
• In reset mode, both control relays remain open,
except for the emergency condition where the
opening can be controlled.

5.1 With feedback (default setup)

• The status indicated by the two-color front LED is
the one detected by the auxiliary contacts.
• The timeout alarms are enabled. They are gener-
ated if the circuit breakers do not reach the
The auxiliary
required position within a programmable time
contacts of the
P1.04 or immediately if they change position
circuit breakers
are wired in when no command has been sent.
their imputs.
• The control outputs are timed. When the circuit
With the
breaker has executed the required operation, the
feedback is
necessary to use
for the opening
operation of
DPX
250-630-1600
the shunth trip
relay or the
undervoltage
relay.
Example of a changeover with feedback,
assuming a utility-to-utility commutation.
The feedback input status is shown
in blue. The status of the control outputs
is shown in green. The changeover time
is shown in yellow.
LED VMAIN OK
LED VSEC OK
3
1
15
6
4
18
• In case of an anomaly on the switch, hence caus-
ing an alarm, the control outputs will both be
opened till the resetting of the alarm.
• There are two separate modes for controlling the
circuit breakers. These can be selected by using
the parameter P1.03
output still remains energized for a certain period
of time (+1 second during closing and +15 sec-
onds during opening, in order to allow the springs
of the motor operators to be completely charged)
and then it is released.
• The normal status of the control outputs is open.
• The interlocking times start when the first circuit
breaker is actually opened, detected by the input,
and last for 0.5 steady seconds.
15 s
0.5 s
1s
1s
0.5 s
15 s
11