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7.2 Description of Frequency Input Sources
7.2.0 Pr.40 = 0, Speed input come from Pr.00
Parameter Pr.00 is the
MAIN_SPEED_SET
parameter stored in
EAROM memory.
The value once written into Pr.00 will never be altered, unless you re-write a new value again.
In this mode, the Hz value stored in Pr.00 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.
Note: Changing the content in Pr.00 will immediately change the output frequency even if the inverter is running.
7.2.1 Pr.40 = 1, Speed input come from AI1
In this mode, the voltage signal fed into AI1 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.15 (UPPER LIMIT).
If the desired set frequency is lower than Pr.16 (LOWER LIMIT), the
inverter will stop.
Note:
Set jumper JP1 to match the input voltage range.
If necessary, use Pr.89 & Pr.90 to modify the input range.
7.2.2 Pr.40 = 2, Speed input come from AI2
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.15 (UPPER LIMIT).
If the desired set frequency is lower than Pr.16 (LOWER LIMIT), the
inverter will stop.
Note:
Set jumper JP2 to match the input signal type and range. If
necessary, use Pr.91 & Pr.92 to modify the input range.
7.2.3 Pr.40 = 3, Speed input come from Key-pad setting
The set frequency comes from keypad directly.
Or if communication option is used, set frequency comes from communication command.
The direction of the output phase sequence must be determined by control command.
Note: When start running; the minimum running frequency shall be Pr.16.
7.2.4 Pr.40 = 4, Speed input come from AI1 with Bi-direction control
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 stop.
Note: Set jumper JP1 to match the
input voltage range. If necessary,
use Pr.89 and Pr.90 to modify the
input range.
Hz
Vin
0
+5V(or +10V)
Pr.15
Pr.16
Hz
Vin
0
+5V(or 20mA)
Pr.15
Pr.16
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