Magtrol DSP7000 - Calibration of Analog to Digital Converters

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Magtrol Model DSP7000 Dynamometer ControllerChapter 9 – Calibration
MAINTENANCE
2. Turn on the DSP7000.
3. Allow the DSP7000 to warm up for at least 30 minutes.
9.3.2 CaliBraTion of analog To DigiTal ConverTerS
1. A/D Offset and Gain on any of the 6 analog inputs.
 • TSC1(lowgainandhighgain)
 • TSC2(lowgainandhighgain)
 • IOCard1Channel1
 • IOCard1Channel2
 • IOCard2Channel1
 • IOCard2Channel2
2. Connect the external voltage reference common to the input connector.
 • TSC1=Pin13oftheTSC1connector
 • TSC2=Pin13oftheTSC2connector
 • IOCard1Channel1=Pin16oftheIOCard1connector
 • IOCard1Channel2=Pin17oftheIOCard1connector
 • IOCard2Channel1=Pin16oftheIOCard2connector
 • IOCard2Channel2=Pin17oftheIOCard2connector
3. Connect the external voltage reference high to the input connector.
 • TSC1=Pin14oftheTSC1connector
 • TSC2=Pin14oftheTSC2connector
 • IOCard1Channel1=Pin3oftheIOCard1connector
 • IOCard1Channel2=Pin4oftheIOCard1connector
 • IOCard2Channel1=Pin3oftheIOCard2connector
 • IOCard2Channel2=Pin4oftheIOCard2connector
4. Send the DSP7000 the MODE2 command. This command puts the unit into engineering
mode. After completing calibration, send the DSP7000 the MODE0 command.
NOTE: The appropriate DIN command needs to be sent to choose between
HD (2 Volt) and WB/PB (10 Volt) calibration to activate internal
multiplexer.
5. Send the DSP7000 the CALAD# command. This chooses the A/D to be calibrated. Where
# represents the A/D being calibrated.
0 = TSC1 (HD 2.0 volts)
1 = TSC1 (WB/PB 10.0 volts)
2 = TSC2 (HD 2.0 volts)
3 = TSC2 (WBPB 10.0 volts)
4 = IO Card 1 Channel 1
5 = IO Card 1 Channel 2