
108
Magtrol Model DSP7000 Dynamometer Controller
Chapter 9 – Calibration
MAINTENANCE
2. Turn on the DSP7000.
3. Allow the DSP7000 to warm up for at least 30 minutes.
9.3.2
C
aliBraTion
of
a
nalog
To
D
igiTal
C
onverTerS
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