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Parameterization
9.3 Parameters
3KC ATC6300 transfer control device
128
Manual, 03/2018, L1V30535632002A-01
P05
Changeo-
ver
Designation on ATC
display
Description
Unit
Default
Range
P05.20
Closing retry
Closing retry
– In the case of circuit breakers with motor
operators, this parameter specifies in which
mode the new attempt to close the device can
be performed. The new closing attempt is per-
formed when the previous closure has failed,
probably because the springs were not loaded.
It involves performing a complete opening and
spring loading cycle followed by a new closing
command. If the breaker fails to close again,
feedback alarm A03 or A04 is triggered.
AUT
OFF
6)
AUT
AUT+MAN
7)
CL
OSE
8)
P05.21
Gen. Rot. Interval
Generator start interval
- These parameters permit a time-controlled
rotation in the G-G application by switching the
priority between the two generators. Thus a
switch between 2 generators can be imple-
mented at certain times of the day.
P05.21 specifies the rotation interval of the two
generators.
OFF
OFF
1h-2h-3h
4h-6h-8h-12h-
1d-2d-3d
4d-5d-6d-7d
P05.22
Gen. Rotation Hour Generator start hour
- The time of day at which the rotation is per-
formed is specified by P05.22 and P05.23. If
the rotation interval is greater than 24 hours,
the rotation is performed at the specified time
every n days. If it is less than 24 hours, the
rotation is performed at the specified time and
at the respective intervals. If, for example, the
time is specified as 12:30 and the rotation is
every 6 hours, one rotation will take place at
12:30, one at 18:30 the next at 0:30 etc.
h
0
0...23
P05.23
Gen. Rotation
Minutes
Generator start minutes
min
0
0...59
1)
OBP (Open Before Presence) - In the automatic mode the open command of a circuit
breaker is generated (when the line concerned goes beyond limits) regardless of the status
of the alternative line. As a consequence, the priority line is switched off even if the
alternative line is not available.
2)
OAP (Open After Presence) - In the automatic mode the open command of a circuit
breaker is only sent after the alternative line is present within limits.
3)
EJP = Two programmable inputs are used, which can be configured with the functions
Load off and Remote changeover. When the starting input closes, the motor start delay
(P05.14) is enabled, after which the start cycle runs. Subsequently, when the remote
switching go-ahead is received, the load is transferred from the mains to the generator, if the
generator has been started properly. The load is restored to the mains by the remote
switching go-ahead opening and the gen-set runs the stop cycle when the start input opens.
The EJP function is only enabled if the system is in the automatic mode. The safety devices
and alarms function as usual.