CHAPTER 6: SETPOINTS S4 CONTROLS
339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 6–123
Operand types and descriptions
The following tables of Logic Operands, taken from Function Code FC134B in the 3 Series
Communications Guide, show the list of available Logic Inputs. Where specific event
descriptions are not given, a general description applies as follows:
General descriptions of operands originating from protection, control, and monitoring
elements:
General descriptions of operands originating from digital elements such as contact, virtual
and Remote inputs, Output Relays, and Virtual Outputs:
"..operand name..Trip PKP" The function setpoint of the element has been programmed as "Trip" and the element picked up
"..operand name.. Trip OP" The function setpoint of the element has been programmed as "Trip" and the element operated
"..operand name.. Trip DPO" The function setpoint of the element has been programmed as "Trip" and the element operation
dropped out
"..operand name..Alarm PKP" The function setpoint of the element has been programmed as "Alarm" and the element picked up
"..operand name.. Alarm OP" The function setpoint of the element has been programmed as "Alarm" and the element operated
"..operand name.. Alarm DPO" The function setpoint of the element has been programmed as "Alarm" and the element operation
dropped out
"..operand name.. Block" The operation of the element has been blocked
"..operand name.. Off "The status of the selected input or output is OFF
"..operand name.. On "The status of the selected input or output is ON
Element Operands Event Description
Contact Inputs Contact IN 1..10 On
Contact IN 1..10 Off
Virtual Inputs Virtual IN 1..32 On
Virtual IN 1..32 Off
Remote Inputs Remote IN 1..32 On
Remote IN 1..32 Off
Ge n e r a l O f f
On
Any Trip Generated upon operation of any element with function setpoint set to "Trip"
Any Alarm Generated upon operation of any element with function setpoint set to "Alarm"
Any Pkp OP Generated upon detection of pickup status from any element
Any Block Generated when the operation of any element is blocked
Any Inhibit Generated when the operation of any element is inhibited
Output Relay 1 On
Output Relay 2 On
Output Relay 3 On
Output Relay 4 On
Output Relay 5 On
Output Relay 6 On
Output Relay 1 Blk
Output Relay 2 Blk
BKR Connected Defines the status of the breaker in the power system. BKR Connected means breaker
racked in the system
Open Breaker Defines a command to open the breaker
Close Breaker Defines a command to close the breaker
Maint. Req.
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