Omron RX Series - Page 288

6 Vector Control
6 - 20
High-function General-purpose Inverter 3G3RX-V1 User’s Manual (I578-E1)
2 Selection of motor rotation during auto-tuning
In the Auto-tuning Selection (H001), select whether the motor rotates during auto-tuning.
3 Auto-tuning
(1) After presetting of parameters, set the Auto-tuning Selection (H001) to 01 (Enabled:
No motor rotation) or 02 (Enabled: Motor rotation).
(2) Turn ON the RUN command.
Turning ON the RUN command starts automatic operation in the following
procedure.
1) 1st AC excitation (Motor does not rotate.)
↓
2) 2nd AC excitation (Motor does not rotate.)
↓
3) 1st DC excitation (Motor does not rotate.)
↓
4) V/f operation (Motor accelerates up to 80% of base frequency.)
↓
5) SLV operation (Motor accelerates up to X% of base frequency.)
↓
6) 2nd DC excitation (Motor does not rotate.)
↓
7) Auto-tuning result is displayed.
Note 1 Steps 4 and 5 will be skipped in auto-tuning without motor rotation (H001 = 01).
2 The motor speed X in step 5 is given as follows, where T is the acceleration or deceleration time in step 4,
whichever is greater.
T ≤ 0 < 50 s: X = 40%
0 s ≤ T ≤ 100 s: X = 20%
100 s ≤ T: X = 10%
Set value Description
01
The motor does not rotate during auto-tuning.
02
The motor rotates during auto-tuning.
Motor rotation
selection
Description
Motor does not
rotate (01)
Measures motor parameter values without rotating the motor. Use this
setting if you do not rotate the motor. Because the motor does not rotate,
the Motor Parameter Io (No-load current) and Motor Parameter J
(Moment of inertia) values cannot be measured.
Motor rotates (02)
Measures motor parameter values with the motor rotating. Use this
setting if you can rotate the motor without any problem.
Parameter No. Function name Data Default data Unit
H001 Auto-tuning Selection
00: Disabled
01: Enabled (No motor rotation)
02: Enabled (Motor rotation)
00 –