Delta CT2000 Series, User Manual, Page: 280 / 634

Chapter 12 Description of Parameter Settings

CT2000 Series
12.1-05-2
 Set Pr.05-00=6 to begin rolling test for IM motor flux curve. This function is available
when the drive is in FOC/TQC Sensorless control. User may begin auto-tuning after
setting up the motor information.

Set up Pr.01-01, 01-02, 05-01~05-04 according to the motor nameplate information
。

Set Pr.05-00=6 and press
【
Run
】
,
make sure no loading is applied to the motor
before setting Pr.05-00 to 6 and before performing auto-tuning.
 When Pr.05-00=12, the drive begins FOC Sensorless inertia estimation for IM motor. This
function is available when the drive is in FOC/TQC Sensorless control. User may begin
auto-tuning after setting up the motor information.

Note: Make sure the motor parameters (no-load current, Rs, Rr, Lm and Lx) of the
drive are set before performing Pr.05-00=12 (auto-tuning for FOC Sensorless inertia
estimation for IM motor).
1. Set Pr.00-10=2 (torque mode)
2. Set Pr. 00-13=2 (TQCPG, Open-loop torque mode)
3. Set Pr. 05-00=12 and press
【
Run
】
to begin FOC Sensorless inertia measure
4. When the process of inertia estimation is completed, check Pr.11-01 (unit: PU Q8) and
see if the measured value is acceptable.
Set up Sensorless FOC Mode
1. Set Pr.00-10 = 0 (speed mode)
2. Set Pr.00-11 = 5 (FOC sensorless mode)
3. Set bit0 of Pr.11-00 to 1 (use ASR gain function to automatically adjust the ASR
bandwidth in Pr.11-03,11-04,11-05)
NOTE

In torque/vector control mode, it is not recommended to have motors run in parallel.

It is not recommended to use torque/vector control mode if motor rated power exceeds
the rated power of the AC motor drive.

When auto-tuning 2 motors, it needs to set multi-function input terminals (setting 14) or
change Pr.05-22 for motor 1/motor 2 selection.

The no-load current is usually 20~50% X rated current.

The rated speed can not be greater than or equal to 120f/p (f = rated frequency
Pr.01-01/01-35; P: number of motor poles Pr.05-04/05-16).
Permanent Magnet Motor (PM)
 Set Pr.05-00= 5 or 13 and press
【
Run
】
to begin auto tuning for PM motor. The
measured values will be written into Pr.05-39
（
Rs
）
, Pr.05-40 & 41
（
Ld & Lq
）
and
Pr.05-43
（
PM motor
’
s Ke parameter
）
.
To begin AUTO-Tuning for PM motor in rolling test:
1. Make sure all the parameters are reset to factory setting and the motor wiring installation is
correct.