User`s manual

iv
Magtrol Model DSP6001 Dynamometer ControllerTable of Contents
3.3 SPEED ENCODER SETUP ......................................................................................................................................... 36
3.3.1 Bit Configurations .......................................................................................................................................... 36
3.4 TORQUE/SPEED ANALOG OUTPUTS .................................................................................................................... 37
3.4.1 Torque DAC Scale Factor ............................................................................................................................... 37
3.4.2 Speed DAC Scale Factor ................................................................................................................................ 37
3.4.3 Torque/Speed DAC Setup .............................................................................................................................. 37
4. DIGITAL FILTERS ............................................................................................................................. 38
4.1 FILTER PARAMETERS ............................................................................................................................................. 38
4.2 FILTER SETUP ............................................................................................................................................................ 39
5. PID SETTINGS .................................................................................................................................. 40
5.1 ABOUT THE PID LOOP ............................................................................................................................................. 40
5.1.1 P (Proportional Gain) ..................................................................................................................................... 40
5.1.2 I (Integral) ...................................................................................................................................................... 40
5.1.3 D (Derivative) ................................................................................................................................................. 40
5.2 SETTING PID VALUES .............................................................................................................................................. 40
5.2.1 How To Set P (Proportional Gain) Value ....................................................................................................... 40
5.2.2 How to Set I (Integral) Value .......................................................................................................................... 40
5.2.3 How to Set D (Derivative) Value .................................................................................................................... 40
5.3 HOW THE PID LOOP WORKS .................................................................................................................................. 41
5.3.1 Scale Factors for Hysteresis, Eddy-Current and Powder Brake Dynamometers ........................................... 41
5.3.2 Speed Correction for WB (Eddy-Current Brake) Dynamometer ................................................................... 41
5.3.3 Equations ........................................................................................................................................................ 42
5.4 ADDITIONAL SCALE FACTOR ............................................................................................................................... 42
5.4.1 How To Set Additional Scale Factor .............................................................................................................. 42
5.5 SETTING THE CORRECT PID’S FOR YOUR MOTOR .......................................................................................... 43
5.5.1 Setting the PID with an Unknown Motor or System ..................................................................................... 43
5.5.2 Setting the PID for Torque Control ................................................................................................................ 43
5.5.3 Setting the PID for Speed Control ................................................................................................................. 46
5.5.4 Setting the PID for Ramp Down .................................................................................................................... 48
6. ALARM SYSTEM .............................................................................................................................. 50
6.1 GENERAL INFORMATION ....................................................................................................................................... 50
6.1.1 Alarm Relay ................................................................................................................................................... 50
6.1.2 Alarm Operation............................................................................................................................................. 51
6.1.3 Alarm Priority ................................................................................................................................................ 52
6.2 POWER ALARM ......................................................................................................................................................... 52
6.2.1 Instructions for Power Alarm Setup ............................................................................................................... 52
6.2.2 Power Alarm Action ....................................................................................................................................... 53
6.2.3 To Reset Power Alarm .................................................................................................................................... 53
6.3 MAXIMUM SPEED ALARM .................................................................................................................................... 53
6.3.1 Instructions for Maximum Speed Alarm Setup .............................................................................................. 53
6.3.2 Maximum Speed Alarm Action ...................................................................................................................... 54
6.3.3 To Reset Maximum Speed Alarm .................................................................................................................. 54
6.4 MAXIMUM TORQUE ALARM ................................................................................................................................ 54
6.4.1 Instructions for Maximum Torque Alarm Setup ............................................................................................ 54
6.4.2 Maximum Torque Alarm Action .................................................................................................................... 55
6.4.3 To Reset Maximum Torque Alarm ................................................................................................................. 55
6.5 AIR FLOW ALARM .................................................................................................................................................... 56
6.5.1 Instructions for Air Flow Alarm Setup ........................................................................................................... 56
6.5.2 Air Flow Alarm Action ................................................................................................................................... 56
6.5.3 To Reset Air Flow Alarm ............................................................................................................................... 56