27
7.2.8 Pr.40 = 8, Similar to mode 3, with Preload from Pr.00 (and Auto Write to Pr.00)
This function is similar to Pr.40=3, with only two differences:
a. When Power On or after Reset, the data in Pr.00 will preload into set frequency buffer.
b. When using LOCAL panel, after changing ser frequency, the buffer value will write back into Pr.00 automatically.
Note: When start running; the minimum running frequency shall be Pr.16.
7.2.9 Pr.40 = 9, Similar to mode 4, with minimum running speed
In this mode, the voltage signal fed
into AI1 terminal will be used to
determine the output frequency and
direction of the inverter.
The input signal level determines
the direction of the output phase
sequence.
If the input signal is maximum
level, the set frequency is equal to
Pr.15 (UPPER LIMIT) in forward
direction, and if the input signal is
zero, the set frequency is equal to
Pr.15 in reverse direction.
If the input is around half level, the
inverter will run at Pr.16 (LOWER
LIMIT).
Note: Set jumper JP1 to match
with the input voltage range. If
necessary, use Pr.89 and Pr.90 to
modify the input range.
7.2.10 Pr.40 = 10, Similar to mode 5, with minimum running speed
In this mode, the voltage signal fed
into AI2 terminal will be used to
determine the output frequency and
direction of the inverter.
The input signal level determines
the direction of the output phase
sequence.
If the input signal is positive
maximum level, the set frequency
is equal to Pr.15 (UPPER LIMIT)
in forward direction; and if the
input signal is zero, the set
frequency is equal to Pr.15 in
reverse direction.
If the input is around half level, the
inverter will run at Pr.16 (LOWER
LIMIT).
Note: Set jumper JP2 to match
with the input signal type and
range. If necessary, use Pr.91
and Pr.92 to modify the input
range.
7.2.11 Pr.40 = 11, Same as mode 6
7.2.12 Pr.40 = 12 , Speed input is the combination of AI1 * ( 100%
±
(Pr.70*AI2) )
In this mode, the desired set frequency is the combination of AI1 and AI2.
Set Frequency = AI1 * ( 100%
±
(Pr.70*AI2) )
Analog signal from AI1 is selected to be the master set frequency; and signal from AI2 is the proportional rate input.
If signal level of AI2 is maximum, the modification rate equal (100%+Pr.70);
and if AI2 is minimum, the modification rate is (100%-Pr.70).
Note: Minimum-running frequency is Pr.16.
Typical application is as follows:
Hz (forward)
JP1 set to +5V
JP1 set to +10V
Hz (forward)
+5V
0V
Pr.15
Pr.15
Pr.16
Pr.16
Hz (reverse)
2.5V
+10V
0V
Pr.15
Pr.15
Pr.16
Pr.16
Hz (reverse)
5V
+5V
0V
Pr.15
Pr.15
Pr.16
Pr.16
JP2 set to +5V
+20mA
0mA
Pr.15
Pr.15
Pr.16
Pr.16
JP2 set to 20mA
Hz (forward)
Hz (forward)
Hz (reverse)
Hz (reverse)