Principios de la Tributación

The general approach for testing alarm setpoints is to simulate the

Aeroderivative signal with a function generator and power supply. The alarm levels are tested by varying the output from the test equipment and observing that the correct results are reported in the Verification screen on the test

computer. The same test alarm procedure is used for Direct and Band-pass. It is only necessary to test those alarm parameters that are configured and being used. The general test procedure to verify current alarm operation will include simulating a transducer input signal and varying this signal:

1. to exceed over Alert/Alarm 1 and Danger/Alarm 2 Setpoints and

1. to drop below any under Alert/Alarm 1 and Danger/Alarm 2 Setpoints and 1. to produce a nonalarm condition.

When varying the signal from an alarm condition to a nonalarm condition, alarm hysteresis must be considered. Adjust the signal well below the alarm setpoint for the alarm to clear.

Direct and Band-pass

1. Disconnect PWR, COM, +, and ! field wiring from the channel terminals on the Aeroderivative GT Vibration I/O Module.

1. Connect test equipment and run software as described in Section 5.1.5.1 (Test Equipment and Software Setup - Aeroderivative). Leave the

1. Adjust the function generator amplitude to produce a reading that is below the Direct/Band-pass setpoint levels on the Direct/Band-pass bar graph display of the Verification screen.

1. Press the RESET switch on the Rack Interface Module (RIM). Verify that the OK LED is on, the bar graph indicator for Direct/Band-pass is green, and the Current Value Field has no alarm indication.

1. Adjust the function generator amplitude such that the signal just exceeds the Direct/Band-pass Over Alert/Alarm 1 setpoint level. Wait for 2 or 3 seconds after the alarm time delay expires and verify that the bar graph indicator for Direct/Band-pass changes color from green to yellow and that the Current Value Field indicates an Alarm.

1. Press the RESET switch on the Rack Interface Module (RIM). Verify that the bar graph indicator for Direct/Band-pass remains yellow and that the Current Value Field still indicates an Alarm.

1. Adjust the function generator amplitude such that the signal just exceeds the Direct/Band-pass Over Danger/Alarm 2 setpoint level. Wait for 2 or 3 seconds after the alarm time delay expires and verify that the bar graph indicator for Direct/Band-pass changes color from yellow to red and that the Current Value Field indicates an Alarm.

1. Press the RESET switch on the Rack Interface Module (RIM). Verify that the bar graph indicator for Direct/Band-pass remains red and that the Current Value Field still indicates an Alarm.

1. Adjust the function generator amplitude such that the signal reads below the Over Alarm setpoint levels. If the nonlatching option is configured, observe that the bar graph indicator for Direct/Band-pass changes color to green and that the Current Value Field contains no indication of alarms. Press the RESET switch on the Rack Interface Module (RIM) to reset latching alarms. 1. If you can not verify any configured alarm, recheck the configured setpoints.

If the monitor still does not alarm properly or fails any other part of this test, go to Section 5.1.7 (If a Channel Fails a Verification Test).

1. Disconnect the test equipment and reconnect the PWR , COM, + and ! field wiring to the channel terminals on the Aeroderivative GT Vibration I/O Module. Verify that the OK LED comes on and the OK relay energizes. Press the RESET switch on the Rack Interface Module (RIM) to reset the OK LED.

1X Amplitude (1X Ampl)

Note

The Keyphasor must be triggering and have a valid rpm value to check this parameter.

1. Disconnect PWR , COM, +, and ! field wiring from the channel terminals on the Aeroderivative GT Vibration I/O Module.

1. Connect test equipment and run software as described in Section 5.1.5.1 (Test Equipment and Software Setup - Aeroderivative). Leave the

frequency of the function generator set to 130 Hz.

1. Adjust the function generator amplitude to produce a reading that is below the 1X Ampl setpoint levels on the 1X Ampl bar graph display of the Verification screen.

1. Press the RESET switch on the Rack Interface Module (RIM). Verify that the OK LED is on, the bar graph indicator for 1X Ampl is green, and the Current Value Field has no alarm indication.

1. Adjust the function generator amplitude such that the signal just exceeds the 1X Ampl Over Alert/Alarm 1 setpoint level. Wait for 2 or 3 seconds after the alarm time delay expires and verify that the bar graph indicator for 1X Ampl changes color from green to yellow and that the Current Value Field indicates an Alarm.

1. Press the RESET switch on the Rack Interface Module (RIM). Verify that the bar graph indicator for 1X Ampl remains yellow and that the Current Value Field still indicates an Alarm.

1. Adjust the function generator amplitude such that the signal just exceeds the 1X Ampl Over Danger/Alarm 2 setpoint level. Wait for 2 or 3 seconds after the alarm time delay expires and verify that the bar graph indicator for 1X Ampl changes color from yellow to red and that the Current Value Field indicates an Alarm.

1. Press the RESET switch on the Rack Interface Module (RIM). Verify that the bar graph indicator for 1X Ampl remains red and that the Current Value Field still indicates an Alarm.

1. Adjust the function generator amplitude such that the signal reads below the Over Alarm setpoint levels. If the nonlatching option is configured, observe that the bar graph indicator for 1X Ampl changes color to green and that the Current Value Field contains no indication of alarms. Press the RESET switch on the Rack Interface Module (RIM) to reset latching alarms.

1. If you can not verify any configured alarm, recheck the configured setpoints. If the monitor still does not alarm properly or fails any other part of this test, go to Section 5.1.7 (If a Channel Fails a Verification Test).

1. Disconnect the test equipment and reconnect the PWR, COM, +, and ! field wiring to the channel terminals on the Aeroderivative GT Vibration I/O

Module. Verify that the OK LED comes on and the OK relay energizes. Press the RESET switch on the Rack Interface Module (RIM) to reset the OK LED.

1. Repeat steps 1 through 11 for all configured channels.