| 1、 Site conditions Application equipment: circular knitting machine Inverter model: t510 2、 Commissioning instructions Field use: hmi+plc+ frequency converter Frequency converter control mode: terminal start and stop; Given frequency of analog quantity or multi-stage speed Wiring mode: V+ ----------------------- AI1 V- ----------------------- GND RUN ----------------------- X1 COM----------------------- COM TA ----------------------- TA TC ----------------------- TC Parameter setting Function code name Setting range Factory value change F1 motor parameter group F1.00 1st motor control mode 0: appropriate control without speed sensor two 0 1: Closed loop vector control 2: VF control F1.01 Motor type selection 0: ordinary asynchronous motor 0 Model determination 1: Variable frequency asynchronous motor F1.02 Rated power of motor 0.1-1000KW Model determination F1.03 Rated voltage of motor 1V-2000V Model determination F1.04 Rated current of motor 0.1-6553.5A Model determination F1.05 Rated frequency of motor 0.01Hz maximum frequency Model determination F1.06 Rated speed of motor 1-65535rpm Model determination Note: disconnect the motor belt, press mf.k, confirm that the motor rotation direction is correct, set f1.38=2, press run key to run, and execute the motor rotation self-learning. F0 basic function parameter group F0.01 Command source selection 0: operation panel command channel 0 one 1: Terminal command channel 2: Communication command channel F0.02 Main frequency command selection 0: digital setting four two 2：AI1 3：AI2 4: Panel potentiometer 5: Pulse pulse setting 6: Multistage instruction F0.13 Maximum frequency 50.00-320HZ 50.00HZ 65.00HZ F0.14 Upper limit frequency Lower limit frequency f0.17-maximum frequency f0.13 50.00HZ 65.00HZ F0.21 Acceleration time 1 0.00S-65000S 5.0S F0.22 Deceleration time 1 0.00S-65000S 0.8S F0.25 Acceleration and deceleration mode 0: linear acceleration and deceleration 0 one 1: S curve acceleration and deceleration a 2: S-curve acceleration and deceleration B F0.33 Anti reverse control 0: allow the motor to reverse 0 one 1: Reverse rotation of motor is prohibited F2 vector control group parameters F2.00 Speed loop proportional gain 1 1-100 thirty Reduce it according to the site conditions F2.03 Speed loop proportional gain 2 1-100 twenty Reduce it according to the site conditions F2.05 Switching frequency 2 F2.02 maximum frequency 10HZ 50HZ F6 start stop control parameter group F6.00 Startup mode 0: direct start 0 two 1: Speed tracking start 2: Pre excitation start F6.03 Starting frequency 0.00-10.00HZ 0.00HZ 0.2HZ F6.05 Starting DC braking current / pre excitation current 0-100% 0 50% F6.06 Start DC braking time / pre excitation time 0-100S 0 0.1S F6.08 Starting frequency of shutdown DC braking 0-maximum frequency 0 0.5HZ F6.10 Shutdown DC braking current 0-100% 0 one hundred F6.11 Shutdown DC braking time 0-100S 0 2S 3、 Problem description 1. The motor shaft rotates slightly at the moment of starting and stopping This problem can be ignored for machines equipped with one-way bearings in the large circular machine system; However, in some large circular machines, reversing is not prohibited mechanically. When it is completely controlled by the motor, slight reversing may damage the needle disc. In view of the above problems, DC braking parameters can be set to ensure that the inertia on the motor shaft is completely braked by DC braking during shutdown, so as to solve the problem of motor shaft rotation at the moment of startup. | |||||||
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