Chapter 5 Function parameter
78
Ch
ap
ter 5
Define the output terminal SPA, SPB, relay 1, relay 2 output logic.
0: positive, digital output terminal and the corresponding public terminal connectivity to the
active state, disconnecting is inactive state;
1: negative, digital output terminal and the corresponding public terminal connectivity to the
inactive state, disconnecting is active state.
F2.16
DA1 zero bias coefficient
-100.0%~+100.0%
0.0%
☆
F2.17
DA1 gain
-10.00~+10.00
1.00
☆
F2.18
DA2 zero bias coefficient
-100.0%~+100.0%
0.00%
☆
F2.19
DA2 gain
-10.00~+10.00
1.00
☆
The above function codes generally used to bias the output amplitude of zero drift and
correcting the analog output. It can also be used to customize the desired analog output curve.
Calculation relationship with DA1 example:
y1 represents DA1 minimum output voltage or current value; y2 represents DA1 maximum
output voltage or current value
y1=10V or 20mA*F2.16*100%
；
y2=10V or 20mA*(F2.16+F2.17)
；
Factory Default F2.16 = 0.0%, F2.17 = 1, so the output 0 ~ 10V (or 0 ~ 20mA) corresponding
to characterize the physical minimum value to characterize the physical maximum.
Example 1:
0 ~ 20mA output will be changed to 4 ~ 20mA
The minimum input current value from the formula: y1 = 20mA * F2.16 * 100%,
4=20*F2.16, calculated according to the formula F2.16=20%
；
Maximum input current value by the formula:y2=20mA*(F2.16+F2.17)
；
20=20*(20%+F2.17),calculated according to the formula F2.17=0.8
Example 2:
0 ~ 10V output will be changed to 0 ~ 5V
The minimum input voltage value from the formula:y1=10*F2.16*100%
，
0=10*F2.16, calculated according to the formula F2.16=0.0%
；
The maximum input voltage value from the formula: y2=10*(F2.16+F2.17)
；
5=10*(0+F2.17),calculated according to the formula F2.17=0.5
5-2-5.
Start and stop control group
：
F3.00-F3.15
Code
Parameter name
Setting range
Factory
setting
Cha
nge
F3.00
Start-up mode
Direct startup
0
0
☆
Speed tracking restart
1
Pre-excitation start (AC asynchronous motor)
2
0: Directly startup
If the start DC braking time is set to 0, the inverter starts running from the start frequency. If
the start DC braking time is not set to 0, the inverter firstly performs DC braking and then starts
running from the start frequency. Applicable for the small inertia load and the application that the
motor may rotate when starting.
1: Speed tracking restart
The inverter firstly judges the speed and direction of motor, and then starts at the tracked
motor frequency, smoothly starts the rotating motor without shocks. Applicable for the momentary
power cut and restart with high inertia loads. To ensure the performance of Speed Tracking Restart,
it is required to accurately set the parameters of motor b0 group.
2: Asynchronous motor pre-excitation start
It is valid only for asynchronous motors, used to firstly create magnetic field before the motor
running. Please refer to the instructions of function code F3.05, F3.06 for pre-excitation current
and pre-excitation time
If the pre-excitation time is set to 0, the inverter will cancel the pre-excitation process, and
