gefran VDI100 Series

Figure4.4.41FrequencyReferencebiasadjustment(example)
Terminal AI1
input voltage
10V
0V
100%
{
30%
Bias
Frequency
Reference
04-05=3: Output Voltage Bias (VBIAS)
Multi-function analog input AI2 can be used to adjust the output voltage. The total output voltage of inverter is
the sum of output voltage based on the selected V/f curve and VBIAS.
The maximum output voltage is set by 01-03, Vmax = 100%.
Figure4.4.42Biasadjustment
100%
-10V
10V
(20mA)
0V
(4mA)
VBIAS
Terminal AI2
analog input
04-05=4: Acceleration and deceleration coefcient (K)
Multi-function analog input AI2 can be used to adjust the acceleration and deceleration time coefcient. The
actual acceleration and deceleration time is calculated as follows:
Actual accel /decel time =
Acceleration / Deceleration time (00-14 ~ 00-17, 00-21, 00-24
K
Acceleration/ Deceleration time setting is 100% (00-14~00-17, 00-21~00-24).
Figure4.4.43Acceleration/decelerationtimereductioncoefcient
Actual
Accel / Decel time
0V
(4mA)
10V
(20mA)
1 2 3 4 5 6 7 8 9
1
10
Terminal AI2
analog input
Terminal AI2
analog input
K
100%
176 VDI100 • Instruction manual