GE M60 Instruction Manual page 359

CHAPTER 5: SETTINGS CONTROL ELEMENTS
The easiest way to assign element outputs to a trip bus is through the EnerVista software A protection summary is
displayed by navigating to a specific protection or control protection element and checking the desired bus box. Once the
desired element is selected for a specific bus, a list of element operate-type operands are displayed and can be assigned
to a trip bus. If more than one operate-type operand is required, it can be assigned directly from the trip bus menu.
Figure 5-128: Trip bus fields in the protection summary
The following settings are available. 5
— The trip bus output is blocked when the operand assigned to this setting is asserted.
TRIP BUS 1 BLOCK
— This setting specifies a time delay to produce an output depending on how output is used.
TRIP BUS 1 PICKUP DELAY
— This setting specifies a time delay to reset an output command. Set the time delay long enough
TRIP BUS 1 RESET DELAY
to allow the breaker or contactor to perform a required action.
to — These settings select a FlexLogic operand to be assigned as an input to the trip
TRIP BUS 1 INPUT 1 TRIP BUS 1 INPUT 16
bus.
— This setting enables or disables latching of the trip bus output. This is typically used when lockout is
TRIP BUS 1 LATCHING
required or user acknowledgement of the relay response is required.
— The trip bus output is reset when the operand assigned to this setting is asserted. Note that the
TRIP BUS 1 RESET
RESET OP
operand is pre-wired to the reset gate of the latch, As such, a reset command from the front panel interface or via
communications resets the trip bus output.
M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 5-231