Test Analog Output - GE Multilin 489 Instruction Manual

CHAPTER 5: SETPOINTS

5.13.5 Test Analog Output

TEST
489 GENERATOR MANAGEMENT RELAY – INSTRUCTION MANUAL
Courtesy of NationalSwitchgear.com
The test output relays setpoint may be used during startup or testing to verify that the
output relays are functioning correctly. The output relays can be forced to operate only if
the generator is offline, no current is measured, and there are no trips or alarms active. If
any relay is forced to operate, the relay will toggle from its normal state. The appropriate
relay indicator will illuminate at that time. Selecting "Disabled" places the output relays
back in service. If the 489 measures current or control power is cycled, the force operation
of relays setpoint will automatically become disabled and the output relays will revert back
to their normal states.
If any relay is forced, the 489 In Service indicator will flash, indicating that the 489 is not in
protection mode.
PATH: SETPOINTS S12 489 TESTING
FORCE ANALOG OUTPUTS
[ ] FUNCTION: Disabled
ANALOG OUTPUT 1
MESSAGE
FORCED VALUE: 0%
ANALOG OUTPUT 2
MESSAGE
FORCED VALUE: 0%
ANALOG OUTPUT 3
MESSAGE
FORCED VALUE: 0%
ANALOG OUTPUT 4
MESSAGE
FORCED VALUE: 0%
These setpoints may be used during startup or testing to verify that the analog outputs are
functioning correctly. The analog outputs can be forced only if the generator is offline, no
current is measured, and there are no trips or alarms active. When the
is "Enabled", the output reflects the forced value as a percentage of the
OUTPUTS FUNCTION
range 4 to 20 mA or 0 to 1 mA. Selecting "Disabled" places all four analog output channels
back in service, reflecting their programmed parameters. If the 489 measures current or
control power is cycled, the force analog output function is automatically disabled and all
analog outputs will revert back to their normal state.
Any time the analog outputs are forced, the In Service indicator will flash, indicating that
the 489 is not in protection mode.
TEST ANALOG OUTPUT
Range: Enabled, Disabled
Range: 0 to 100% in steps of 1
Range: 0 to 100% in steps of 1
Range: 0 to 100% in steps of 1
Range: 0 to 100% in steps of 1
FORCE ANALOG
5–103