V&T Technologies Co., Ltd.
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Chapter 6 Parameter Description
54
2: Menu mode of non
−
leave
−
factory value function code: The operation panel only displays the
parameters different from the leave
−
factory values.
◆
When the technical personnel perform onsite maintenance, to quickly view the parameters set by
the user and detect the failure, this mode can be used.
◆
After the inverter commissioning is completed, to conveniently record and inquire the modified
parameters, this mode can be set.
3
：
Menu mode of last changed 10 function codes: When the inverter has abnormal operation or it is
necessary to inquire the commissioning parameters, the last changed 10 parameters can be inquired by
setting this menu mode. When the leave
−
factory parameters are recovered, the record of the last changed
10 function codes will also be cleared.
Note:
◆
Both P0.00 and P0.02 are visible in all the menu display modes for the convenience of menu
mode switching.
◆
Press ESC key and hold for over 5 seconds, it will restore to basic menu mode, and P0.02 is
automatically restored to 0.
◆
In non
−
basic menu mode, the >> key cannot be used to switch the function zone code and
group number. The current menu mode will be displayed after pressing the >> key for several times.
This function is used to set the control operation mode of the inverter.
0: Process open loop control: It is applicable to most applications, including the application of one
inverter driving one motor and the application of one inverter driving multiple motors (the motors are in
the same work conditions).
1: Analog value feedback process close loop control: It is applicable to applications with general
requirement of speed control precision. The feedback analog can represent such parameters as
temperature, pressure and humidity. For the reference and feedback setting of the analog feedback
process close loop control, refer to P1.02~P1.07 function description. For the setting of the process PID
close loop parameters, refer to Group P8 function code description.
AI1 and AI2 terminal input specification: 0~10V or 0~20mA.
This function is applicable to the frequency reference of open loop control mode. For the speed reference
of process close loop control mode, refer to function code of Group P1.
0: Set frequency reference via P0.05.
Note: If multi
−
section digital voltage terminals 1 ~ 3 are valid, the frequency is determined by the terminal
combination. Refer to P4.15
~
P4.21. If multi
−
section frequency terminals 1 ~ 4 are valid, the frequency is
determined by the terminal combination. Refer to P4.22
~
P4.36.
1: Set frequency reference via AI1 port.
2: Set frequency reference via AI2 port.
Input specification of AI1 and AI2 terminals: 0~10V or 0~20mA. The correspondence relation between
P0.03
Control operation mode
0~1(0)
P0.04
Open loop main reference mode
0~2(0)
P0.05
Open loop digital frequency reference
0.00
～
300.00 Hz
（
50.00Hz
）
