CHAPTER 4: ACTUAL VALUES A4 TARGET MESSAGES
350 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUAL 4–33
• The PKP messages will appear on the relay display as long as their respective flags are
active. The messages will disappear from the display, when either the protection
element drops out before operation, such as when the condition clears before
reaching operation, or when the protection element operates.
• The OP and BKR Status messages will appear on the relay display, when the respective
element operates, with the element function set to “TRIP”, or “LATCHED ALARM”. The
message will stay on the display after the condition clears, and will disappear upon
Reset command. If the element function is selected to “ALARM”, or “CONTROL”, the
message will disappear from the display, when the condition causing operation clears.
• The Breaker Open and Breaker Close messages will appear on the display and stay for
5 seconds only, unless the reset command is initiated, or the element changes its
state. For example, if the breaker is detected “Open”, the message “Breaker Open OK”
will appear on the display and will stay for 5 seconds, unless the breaker status
changes to “Close”. If the breaker status changes to "Close" within 5 seconds after the
0xEF80 CLP GndIOC1 BLK
0xEFC0 CLP GndIOC2 BLK
0xF000 Ph IOC1 Block
0xF040 Ntrl IOC1 Block
0xF080 Gnd IOC1 Block
0xF0C0 Ph TOC1 Block
0xF100 Ntrl TOC1 Block
0xF140 Gnd TOC1 Block
0xF180 Ph IOC2 Block
0xF1C0 Ntrl IOC2 Block
0xF200 Gnd IOC2 Block
0xF240 Ph TOC2 Block
0xF280 Ntrl TOC2 Block
0xF2C0 Gnd TOC2 Block
0xF300 SGnd TOC1 Block
0xF340 Ntrl Dir Block
0xF380 Gnd Dir Block
0xF3C0 NegSeq OV Block
0xF400 Ntrl OV Block
0xF440 Ph OV1 Block
0xF480 Ph UV1 Block
0xF4C0 Aux OV Block
0xF500 Aux UV Block
0xF540 UndrFreq1 Block
0xF580 UndrFreq2 Block
0xF5C0 OverFreq1 Block
0xF600 OverFreq2 Block
0xF640 SGnd IOC1 Block
0xF680 SGnd IOC2 Block
0xF6C0 NegSeq IOC Block
0xF800 NSeq TOC1 Block
0xF840 NSeq TOC2 Block
0xF9C0 SGnd TOC2 Block
Code Type Definition
Courtesy of NationalSwitchgear.com
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