GE MI-869 Instruction Manual page 213

CHAPTER 4: SETPOINTS
NOTE:
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
OPERATION
Range: Non-Failsafe, Failsafe
Default: Non-Failsafe
Failsafe operation causes the output relay to be energized when the Trip condition signal
is low and de-energized when the same signal is high. A failsafe relay also changes state
(if not already activated by an operand driving this output relay) when control power is
removed from the 869. Conversely a non-failsafe relay is de-energized in its normal non-
activated state and will not change state when control power is removed from the 869 (if
not already activated by a protection element).
The default value depends on the selection made in: Setpoints > System > Motor > Setup
> Switching Device Type. If the Switching Device Type is "Breaker", the Operation default
is "Non-Failsafe". If the Switching Device Type is "Contactor", the Operation default is
"Failsafe".
These defaults are applied in Enervista when you are creating a set point file. If settings are
done using the relay's HMI, the user must ensure that the "Operation" set point for the
breaker or contactor is as noted above.
EVENTS
Range: Disabled, Enabled
Default: Enabled
OUTPUTS
4–95