User`s manual

Magtrol Model DSP6001 Dynamometer ControllerChapter 7 – Manually Controlled Operation

OPERATION

4. Press the SHIFT button to exit the MAX SPEED function.

5. Press the SPEED SET button.

6. Use UP  and DOWN  buttons and the Decrease/Increase dial to set a speed equal to the

max. speed.

Note: PID values should be set at this time. See Section 5.5 – Setting the

Correct PID’s for Your Motor.

7. Use the Brake ON/OFF button to turn the brake ON.

8. Start the motor under test.

9. Press the SPEED SET button and adjust the set point to the desired speed.

Note: If the response is too slow or oscillatory, adjust the values for P,

I and D. For more detailed instruction, refer to Chapter 5 – PID

Settings.

7.6 HOW TO SET OPEN LOOP CONTROL

1. Beginning with the brake in the OFF position, press and hold the TORQUE SET button

until a second beep is heard. The open loop control menu should appear. See Figure 5–2

Open Loop Contol Menu.

2. Use UP  and DOWN  buttons and the Decrease/Increase dial to set a value of current

equal to the percent of full scale output.

3. If needed, POWER UNITS and DISPLAYED UNITS can be changed while in OPEN

LOOP mode. (For further instruction, refer to Section 7.2 – How to Set Desired Power

Units.)

4. Use the BRAKE ON/OFF button to turn the brake ON. (Note: When the brake is on, the

only thing that can be adjusted is the set point. There are no other active settings at this

time.)

5. To exit the Open Loop Control mode and return to the main menu, turn the brake OFF and

press and hold the TORQUE SET button until a second beep is heard.

Desired Results

The dynamometer should load the motor under test to the desired speed quickly

with little or no overshoot when the BRAKE button is cycled ON or OFF.

Desired Results

The dynamometer should load the motor under test. Because the mode is

open loop, the controller will not stabilize on speed or torque, but will apply

a constant current to the dynamometer brake. The actual loading will change

as the brake heats up or as other external factors change. The PID’s have no

effect in this mode.