Double inverter for thin wire drawing machine-2015-03-20

一、the situation on the spot:

Commwassioning machines and equipment: thin wire stretching machine.

V&T company Inverter Model: Host: V5–E–4T11–L0 Slave: V5–E–4T5.5–S0

Motor nameplate parameters:

Main tensile motor: rated power 11kW, rated current 22.6A, rated speed 1460rmp, 4 pole

Winding motor: rated power 4kW, rated current 8.8A, rated speed 1440rmp, 4 pole

Winding roll diameter: empty roll 220mm, full roll 300mm

二、the system program:

The wire drawing machine system adopts the speed control mode, the main frequency drive adopts the process open loop control mode without encoder speed feedback vector control, and the slave machine adopts the composite control mode.

Main frequency drive: From the drawing machine line speed (vwasible on the operation panel) via AI2 as the main reference of the inverter, AO2 outputs the analog voltage to the slave machine, which adopts the cascade control method to realize the master and slave inverter speed synchronization. Keep the volume stable.

From the inverter (winding machine): The process open loop main reference in the compound process was given by the main inverter and input by AI1. P8.00 was the main feedback mode of analog feedback closed-loop control, and AI2 was the main feedback mode of analog feedback closed-loop control, and both are PID-adjusted. Finally, the PID adjustment frequency was superimposed with the AI1 input frequency as the frequency of the slave.

3. the system wiring diagram and parameter settings:

Figure 1 Wiring diagram of the drawing machine inverter

Host function code setting:

P0.03=4 P0.04=1 P0.06=1 P0.08=80.0 P0.09=80.0 P0.11=70.00 P0.13=70.00

P3.11=4.00

P5.00=02 P5.01=00 P5.02=20 P5.03=24

P6.04=70.00 P7.00=02

P7.01=48 P7.04=48 P7.05=98.0 P7.10=12.1 P7.20=6.00 P7.21=3.0

P9.00=1 P9.01=4 P9.02=1460 P9.03=11.0 P9.04=21.7

Slave function code setting:

P0.03=3 P0.04=2 P0.06=1 P0.08=1.0 P0.09=1.0 P0.11=75.00 P0.13=75.00

P1.05=2

P2.02=2Cb0

P3.03=00.20 P3.04=0.5 P5.00=02 P5.01=34 P5.02=20 P5.03=19 P5.07=0.09

P6.00=4441 P6.06=0.2 P6.08=75.00 P6.22=0.002 P6.23=0.002

P8.00=04.00 P8.03=0.135 P8.04=0.088 P8.05=0.05 P8.06=0.001 P8.07=0.0

P8.08=10

P9.02=1440 P9.03=5.5 P9.04=13.0

H0.00=1 H0.01=0.132 H0.03=0.05 H0.04=2500 H0.05=500 H0.06=1.83

H0.07=300 H0.08=220

四、note:

After the line was connected, observe the host output (if not, check if the wiring was good) and whether the slave input was the same.

When the winder's pendulum was running in the equilibrium position, observe the following two items:

d2.21 and the actual coil diameter H0.11 are conswastent; d2.20 and the actual running frequency of the winding are conswastent;

When there was a fault, observe the above two items, and check the change of the output current of the winding inverter during the fault process, how the output frequency changes, the current and the frequency change, and record the fault code d0.00-d0.11. value.

Description of Kp, Ki, Kd: Kp, Ki, and Kd corresponding to H0.01, H0.02, and H0.03 are supplementary parameters for PID closed-loop gain adjustment. Generally, the parameters of this group are the strongest in the case of full volume. The PID parameters of P8 group have the strongest effect in the case of empty volume, and the average value of the two was taken in the case of half volume, so pay attention to the two parameters in parameter adjustment. Correspondence of the winding radius.

Check the swing amplitude of the pendulum at start-up, adjust the function codes of P8 group and H group, and adjust the pendulum to the best position to meet the production process requirements.