User`s manual

80
Magtrol Model DSP6001 Dynamometer ControllerChapter 9 – Calibration
MAINTENANCE
8. Connect volt meter to Pin 3 (negative) and Pin 1 (positive) of ACCESSORY TORQUE-
SPEED OUTPUT.
7 6
3 1
5 4
2
8
8. +5.0 VDC COM
7. EXTERNAL ALARM INPUT
6. ALARM RELAY (COMMON)
5. ALARM RELAY (NORMALLY CLOSED)
4. ALARM RELAY (NORMALLY OPEN)
3. ANALOG GROUND
2. ANALOG SPEED
1. ANALOG TORQUE
Figure 9–8 Accessory Torque-Speed Output
9. Using the Decrease/Increase dial, adjust the value so that the meter reading is 0.000 volts
or within 00.20 mV.
10. Press SHIFT once.
11. Using the Decrease/Increase dial, adjust the value so that the meter reading is 9.000 volts
or as close as possible.
12. Press SHIFT once. The display should appear as follows:
POWER
BRAKE STATUS SET POINT SET POINT P I D
TORQUE SPEED STATUS
Figure 9–9 Calibration Accessory Speed DAC Display Menu
13. Connect volt meter to Pin 3 (negative) and Pin 2 (positive) of the ACCESSORY TORQUE-
SPEED OUTPUT.
14. Using the Decrease/Increase dial, adjust the value so that the meter reading is 0.000 volts
or within 00.20 mV.
15. Press SHIFT once.
16. Using the Decrease/Increase dial, adjust the value so that the meter reading is 9.000 volts
or as close as possible.
17. Press SHIFT once to end calibration and return to main menu.
9.3.5 SpeeD CHeCk
1. Connect a function generator with square wave TTL output to pins 10 (TACH. A) and 8
(+5.0 VDC COM) of the 14-pin TSC1 connector. For reference, see Figure 9–2 TSC1 Input
Connector.
2. Verify that the speed display reads the same value as the function generator frequency.
3. If the speed display does not read the same value as the function generator, call Magtrol
customer service.
Note: There are no adjustments for speed calibration.