Auto-Tuning - Larsen & Toubro C*2000 Series User Manual

Chapter 8 Application
 Sleep & Wake-up
 Sleep function means if output frequency of PID control is maintained at the set sleep frequency (H62)
over sleep delay time (H61) due to not enough flux, Sleep function becomes sleep mode automatically
and inverter is stop. Under sleep mode, if error of PID Reference and Feedback is over H63 (Wakeup
Level), Sleep mode is released and the inverter restarts.
 If stop command is input, Sleep mode is released
PID Reference
PID Feedback
Output
Frequency
Run Command
PID Active

8.8 Auto-tuning

Group
Function group 2
 Automatic measuring of the motor parameters is provided.
 The measured motor parameters in H41 can be used in Auto Torque Boost and sensorless
Vector Control.
 Press the "STOP" key for 5 seconds on the panel to start the automatic turning
Auto tuning should be executed after stopping the motor. Motor shaft must not run by the load
during H41 – [Auto tuning].
8-14
Sleep Freq.
Sleep Delay
Code Item
H41 Auto turning
H42 Stator resistance (Rs)
Leakage inductance
H44
(Lσ)
Caution
Wake up level
Set Value Setting Range
0 ~ 1
1
- 0 ~ 56
- 0.00 ~ 600.00
Initial Unit
-
0
-
- mH
Cx2000 AC Drive