29
7.2.18 Pr.40 = 18, Similar to mode 2, with minimum frequency = Pr.16
While the desired output frequency is lower than Pr.16
(LOWER LIMIT), the actual output frequency will maintain at
the lower frequency 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.
7.2.19 Pr.40 = 19, Similar to mode 11, with Preload and Auto Write
Refer to Sec.7.2.6, Sec.7.2.7.
7.2.20 Pr.40 = 20, Similar to mode 18, with Reverse Slope
In this mode, the voltage signal fed into AI2 terminal will be
used to determine the output frequency of the inverter while
running.
The direction of the output phase sequence must be determined
by control command.
If the input signal reaches maximum level, the set frequency is
equal to Pr.16 (LOWER LIMIT).
On the contrary, if the input signal is zero, the set frequency is
equal to Pr.15 (UPPER 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.
7.2.21 Pr.40=21, Set frequency = Panel set frequency * ( 100%
±
(Pr.70*AI2) )
This mode is similar to mode-12; however, Panel-Set Frequency is used instead of AI1 input.
In this mode, the desired set frequency is the combination of Panel input and AI2.
Set Frequency = Panel-Set * ( 100%
±
(Pr.70*AI2) )
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.
This function is useful when master computer controls multiple inverters.
+5V
AI2
ACOM
INV1
Master Speed Set by KEY-PAD Panel or Computer(from serial port)
+5V
AI2
ACOM
INV2
+5V
AI2
ACOM
INV3
To other inverters
Rate 1
Rate 2
Rate 3
Hz
Vin
0
+5V(or 20mA)
Pr.15
Pr.16
Hz
Vin
0
+5V( or 20mA)
Pr.15
Pr.16