Application Guide
P12x/EN AP/A96
MiCOM P120/P121/P122/P123
Page 39/80
16.
SETTING GROUP SELECTION (P122 & P123 ONLY)
MiCOM P122 and P123 relays have two setting groups associated to the protection
functions named PROTECTION G1 and PROTECTION G2. Only one group is active.
Switching between the groups can be done via:
−
the relay front panel interface (CONFIGURATION/GROUP SELECT/ SETTING
GROUP 1 or 2),
−
a dedicated logic input (AUTOMAT. CTRL/INPUT X/CHANGE SET) where X is
the chosen logic input,
−
through the communications port (refer to Mapping Database for detailed
information).
To avoid any false trip, the change of setting group is only carried out when no protection
function is running (except the thermal overload function).
If a setting group change is received during any protection or automation function, it is stored
and executed after the last timer has elapsed.
The user can check which one of the active group is active looking under the OP
PARAMETERS menu.
The user can also assign the active group to an output relay. Using a normally open contact,
this means that:
−
an open contact will indicate that the active group is Group 1
−
a close contact will indicate that the active group is Group 2
Change of setting group done by a digital input
It is possible to change the setting group via the activation of a digital input (on level).
Warning: if the digital input that has been assigned to the change of setting group operates
on level (low or high), it is not possible to change the setting group via remote
communication or front panel.
SWITCH BETWEEN ACTIVE GROUPS:
When powering on the relay, the group selected (Group 1 or Group 2) corresponds to the
state of the logic input. This means:
A - With a Logic input configuration = 0
Group 1 = logic Input is not active
Group 2 = logic Input is active
If the programmed logic input is supplied with +V, then the active group will be G1.
If the programmed logic input is not supplied with +V , then the active group will be G2.
B - With a Logic input configuration = 1
Group 1 = logic Input is not active
Group 2 = logic Input is active
If the set logic input is energized with +V, then the active group will be G2.
If the set logic input is not energized with +V, then the active group will be G1.
Summary of Contents for MiCom P120
Page 1: ...MiCOM P120 P121 P122 P123 Overcurrent Relays Version 11 Technical Guide P12X EN T A96...
Page 2: ......
Page 4: ...P12x EN T A96 Technical Guide Contents Page 2 2 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 13: ...Introduction P12x EN IT A96 MiCOM P120 P121 P122 P123 INTRODUCTION...
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Page 16: ...P12x EN IT A96 Introduction Page 2 8 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 22: ...P12x EN IT A96 Introduction Page 8 8 MiCOM P120 P121 P122 P123 BLANK PAGE...
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Page 35: ...User Guide P12x EN FT A96 MiCOM P120 P121 P122 P123 USER GUIDE...
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Page 40: ...P12x EN FT A96 User Guide Page 4 72 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 108: ...P12x EN FT A96 User Guide Page 72 72 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 109: ...Menu Content Tables P12x EN HI A96 MiCOM P120 P121 P122 P123 MENU CONTENT TABLES...
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Page 112: ...P12x EN HI A96 Menu Content Tables Page 2 68 MiCOM P120 P121 P122 P123 BLANK PAGE...
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Page 221: ...Application Guide P12x EN AP A96 MiCOM P120 P121 P122 P123 APPLICATION GUIDE...
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Page 226: ...P12x EN AP A96 Application Guide Page 4 80 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 302: ...P12x EN AP A96 Application Guide Page 80 80 MiCOM P120 P121 P122 P123 BLANK PAGE...
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Page 370: ...P12x EN CT A96 Communications COURIER DATABASE Page 2 248 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 514: ...P12x EN CT A96 Communications COURIER DATABASE Page 146 248 MiCOM P120 P121 P122 P123...
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Page 518: ...P12x EN CT A96 Communications IIEC 60870 5 103 Page 2 248 MiCOM P120 P121 P122 P123 BLANK PAGE...
Page 536: ...P12x EN CT A96 Communications IEC 60870 5 103 Page 20 248 MiCOM P120 P121 P122 P123...
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Page 540: ...P12x EN CT A96 Communications DNP 3 0 Database Page 2 248 MiCOM P120 P121 P122 P123 BLANK PAGE...
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Page 573: ...Connection Diagrams P12x EN CO A96 MiCOM P120 P121 P122 P123 CONNECTION DIAGRAMS...
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Page 582: ...P12x EN RS A96 Commissioning Test Record Sheets Page 2 60 MiCOM P120 P121 P122 P123 BLANK PAGE...
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