Testing The Frequency Outputs; Preparing For Testing; Testing The Output - GE DigitalFlo XGM868i Service Manual

Chapter 1. Calibration

1.8 Testing the Frequency Outputs

Frequency outputs may be added to the Model XGM868i by installing an appropriate option card in Slot 1. This option
card contains two or four frequency outputs, which are designated A, B, C and D.

1.8.1 Preparing for Testing

Prepare for the testing procedure by connecting a frequency counter to the desired output on the option card. See
Figure 2 on page 8 for frequency output wiring, and Figure 4 on page 12 to identify the OUT(+) and RTN(-) pins for the
desired output on terminal block J2.

1.8.2 Testing the Output

1. From the Keypad Program, press the right arrow key to scroll to the CALIB menu. Press [Enter].
2. In the Cal window, scroll to Slot 1. Press [Enter].
Note: The Slot 1 option only appears at the above prompt if an option card is installed in this slot.
3. Scroll to the desired Output. (
The procedure for testing all the outputs is the same. However, when testing another output, be sure to
IMPORTANT:
reconnect the frequency counter at terminal block J2. See Figure 4 on page 12 for the correct pins.
4. Enter a frequency (between 1 and 10,000 Hz) and press [Enter].
5. Verify that the frequency counter reads the correct value.
Procedure Options
This completes testing of the Slot 1 frequency outputs. Do one of the following:
•
To test another of the available frequency outputs, return to Step 3 in Testing the Output above. If any of the
frequency outputs fails the test, contact the factory for assistance.
•
To calibrate/test additional inputs/outputs, proceed to the appropriate section.
•
To leave the Keypad Program, press [Escape] twice.
10
will be used as an example in this manual.) Press [Enter].
Output A
DigitalFlow™ XGM868i Service Manual