Maintenance
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6. Adjust the power supply voltage for the calculated bottom scale. Verify that
the Direct bar graph display and the Current Value Box is reading ±1 % of
bottom scale. If the recorder output is configured, refer to Section 5.1.10
(Verify Recorder Outputs) for steps to verify the recorder output.
7. If the reading does not meet specifications, check that the input signal is
correct. If the monitor still does not meet specifications or fails any other part
of this test, go to Section 5.1.11 (If a Channel Fails a Verification Test).
8. Disconnect the test equipment and reconnect the PWR, COM, and SIG field
wiring to the channel terminals on the 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.
9. Repeat steps 1 through 8 for all configured channels.
Gap
1. Disconnect PWR, COM, and SIG field wiring from the channel terminals on
the I/O module.
2. Connect test equipment and run software as described in Section 5.1.6.1
(Test Equipment and Software Setup - Thrust Position and Differential
Expansion).
3. Adjust the power supply to produce a voltage equal to -18.00 Vdc on the Gap
bar graph display. Verify that the Gap bar graph display and the Current
Value Box is reading ±1 % of -18.00 Vdc. If the recorder output is configured,
refer to Section 5.1.10 (Verify Recorder Outputs) for steps to verify the
recorder output.
4. Adjust the power supply to produce a voltage equal to mid-scale on the Gap
bar graph display. Verify that the Gap bar graph and Current Value Box is
reading ±1 % of the mid-scale value. If the recorder output is configured,
refer to Section 5.1.10 (Verify Recorder Outputs) for steps to verify the
recorder output.
5. If the reading does not meet specifications, check that the input signal is
correct. If the monitor still does not meet specifications or fails any other part
of this test, go to Section 5.1.11 (If a Channel Fails a Verification Test).
6. Disconnect the test equipment and reconnect the PWR, COM, and SIG field
wiring to the channel terminals on the 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.
7. Repeat steps 1 through 6 for all configured channels.
5.1.6.4
Test OK Limits - Thrust Position and Differential Expansion
The general approach for testing OK limits is to input a DC voltage and adjust it
above the Upper OK limit and below the Lower OK limit. This will cause a
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