5-150 M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
SYSTEM SETUP CHAPTER 5: SETTINGS
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BREAKER 1 OPEN — Selects an operand that when activated, and unless blocked, initiates the Breaker 1 open and individual
phase trip commands.
BREAKER 1 BLK OPEN — Selects an operand that prevents initiation of Breaker 1 open and individual phase trip commands.
This setting can be used for blocking circuit breaker tripping for instance when breaker monitoring detects conditions such
as low SF
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gas density during which breaker opening can cause damage.
BREAKER 1 CLOSE — Selects an operand that when activated, and unless blocked, initiates the Breaker 1 close commands.
BREAKER 1 BLK CLOSE — Selects an operand that prevents initiation of Breaker 1 close commands. This setting can be used
for blocking circuit breaker closing, for instance to prevent closing into a closed ground switch.
BREAKER1 ΦA/3P CLSD — Selects an operand, usually a contact input connected to a breaker auxiliary position tracking
mechanism. This input is for a normally-open 52/a status input that creates a logic 1 when the breaker is closed. If the
BREAKER 1 MODE setting is selected as "3-Pole," this setting selects a single 52/a input as the operand used to track the
breaker open or closed position. If the mode is selected as "1-Pole," the input mentioned is used to track phase A and the
BREAKER 1 ΦB and BREAKER 1 ΦC settings select operands to track phases B and C, respectively.
BREAKER1 ΦA/3P OPND — Selects an operand, usually a contact input, that is for a normally-closed 52/b status input that
creates a logic 1 when the breaker is open. If a separate 52/b contact input is not available, then the inverted 52/a status
signal or the inverted
BREAKER 1 CLOSED status signal can be used.
BREAKER 1 ΦB CLOSED — If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
pole, this input is used to track the breaker phase B closed position as outlined for phase A.
BREAKER 1 ΦB OPENED — If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
pole, this input is used to track the breaker phase B opened position as outlined for phase A.
BREAKER 1 ΦC CLOSED — If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
pole, this input is used to track the breaker phase C closed position as outlined for phase A.
BREAKER 1 ΦC OPENED — If the mode is selected as three-pole, this setting has no function. If the mode is selected as single-
pole, this input is used to track the breaker phase C opened position as outlined for phase A.
BREAKER 1 TOPERATE — This setting specifies the required interval to overcome transient disagreement between the 52/a
and 52/b auxiliary contacts during breaker operation. If transient disagreement still exists after this time has expired, the
BREAKER 1 BAD STATUS FlexLogic operand is asserted for alarm or blocking purposes.
BREAKER 1 EXT ALARM — This setting selects an operand, usually an external contact input connected to a breaker alarm
reporting contact. While the selected operand is active, the BREAKER 1 TROUBLE operand is activated.
BREAKER 1 ALARM DELAY — This setting specifies the delay interval during which a disagreement of status among the three-
pole position tracking operands does not declare a pole disagreement. This allows for non-simultaneous operation of the
poles.
BREAKER 1 OPEN SEAL-IN — This setting specifies the seal-in time of the three-pole open command initiated by either the
Trip Out element or a manual open command to the circuit breaker.
MANUAL CLOSE RECAL1 TIME — This setting specifies the seal-in time of the close commands due to an operator-initiated
manual close command to the circuit breaker.
BREAKER 1 OUT OF SV — Selects an operand indicating that breaker 1 is out-of-service.
BREAKER 1 RACKED-IN — This setting selects a contact input to show whether the breaker is racked-in or racked-out. The
racked-in or racked-out status is used to indicate dynamically the status of breaker symbol, only applied in the single-line
diagram in the graphical front panel. If this setting is set to Off, the racked status is not considered.
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