gefran VDI100 Series

Perform the “Stator resistance measurement” (17-00=2) auto-tune if the inverter/motor leads are longer than
167ft (50m).
For the best performance in vector control perform the rotary-type automatic tune (17-00 = 0) rst (using short
motor leads between the inverter and motor) and a “Stator resistance measurement” (17-00=2) next.
If a rotary auto-tune (17-00=0) cannot be performed, manually enter the mutual induction (02-18), excitation
current (02-09), core saturation compensation factor 1-3 (02-11 - 02-13).
Perform the “Stator resistance measurement” (17-00=2) in V/f control when inverter/motor leads are longer
than 167ft (50m).
Code Parameter Name / Range
17-12 Proportion of Motor Leakage Inductance
0.1~15.0 %
Only the stator resistance auto tune (17-00=2) can be set.
The static non-rotational type and rotational type auto tune will automatically measure the proportion of motor
leakage inductance so this parameter is not active.
It is set the value to 4%. Refer to parameter 02-33 for test run to adjust.
Code Parameter Name / Range
17-13 Motor Slip Frequency
0.10~20.00 Hz
Only the stator resistance auto tune (17-00=2) can be set.
The static non-rotational type and rotational type auto tune will automatically measure the proportion of motor
leakage inductance so this parameter is not active.
Refer to parameter 02-34 for counting the setting value.
Code Parameter Name / Range
17-14 Rotational Auto-tuning
(0): VF type rotational auto-tuning
(1): Vector type rotational auto-tuning
It can be set (17-14) only if Rotational auto-tuning (17-00=0) or Rotational Auto-tuning Combination (17-00=5).
VF type rotational auto-tuning (17-14=0) applies the standard IM motor that won’t shake without loading for V/f
mode. This function is highly applicable,
Vector type rotational auto-tuning (17-14=1) applies the special IM motor that will shake without loading for
V/f mode. This function applies for high speed motor. Vector type rotational auto-tuning (17-14=1) measures
no-loading current of motor by inner current vector method. It avoid the problem appears oscillating current
easily in V/f mode.
If execute VF type rotational auto-tuning (17-14=0) unsuccessfully, try Vector type rotational auto-tuning (17-
14=1) again.
256 VDI100 • Instruction manual