| Abstract: rope saw is a cutting and demolition tool for mines, blocks, curved slabs, large slab stones, thick concrete, irregular concrete reinforcement, bridges and roads. It is easy to install and flexible to use. It can be cut horizontally or vertically. 1、 Introduction A kind of saw designed by using the principle of rope saw and wood cutting to cut brittle and hard materials. It is mainly composed of rope saw drive, flywheel, guide wheel and rope saw chain (made of diamond material). 2、 System composition of wire saw 3、 Performance requirements The application of rope saw machine is double frequency conversion. The frequency of large frequency converter (55kW) has only one control mode, and the manual potentiometer Ai1 controls the speed regulation; Control mode of frequency of small frequency converter (0.75KW): 1. Manual: controlled by potentiometer Ai1 and multi-stage speed control of multi-function input terminal; 2. Automatic (PID control): the text screen communicates with the small frequency converter to set the digital setting of PID, and AI2 (connected to the actual current AO1 of the large frequency converter) is used as feedback; 3. High speed: after the two speed motor is switched from level 8 to level 2, the speed regulation is also controlled by potentiometer Ai1 (the potentiometer is turned to the maximum). U small frequency converter two speed motor switching (key): When switching from "manual" or "automatic" to "high speed", the motor switching terminal (x4) of the frequency converter is closed, and the frequency converter stops automatically first. After stopping, the frequency converter relay acts to drive the external intermediate relay (three groups of contacts are used for motor switching) to act. The motor is switched from level 8 to level 2. The motor switching is completed. After the set delay, the frequency converter restarts automatically, and the motor starts to run at high speed at level 2. The whole process is completed automatically. When switching from "high speed" to "manual" or "automatic", the same process is completed automatically. 4、 Electric wiring diagram of wire saw 5、 Frequency converter parameter setting Large frequency converter (t600-4t55g/75p) Small frequency converter (t600-4t0.75g/1.5p) F0.01 one Terminal control start stop F0.01 one Terminal control start stop F0.02 two Main frequency source selection Ai1 F0.02 two Main frequency source selection Ai1 F0.21 thirty Acceleration time F0.03 eight Auxiliary frequency source PID is valid F0.22 thirty Deceleration time F0.04 two Switching between main and auxiliary frequency sources F4.01 one X1 forward rotation F0.21 five Acceleration time F4.02 two X2 reverse F0.22 five Deceleration time F4.03 nine X3 fault reset F4.01 one X1 forward rotation F4.30 two Relay - fault output F4.02 two X2 reversal F5.27 two AO1 output current F4.03 eighteen During manual operation, X3 terminal is disconnected and switched to Ai1; When automatic, X3 terminal is closed and switched to PID Fd.00 six thousand and five Baud rate: 9600 F4.04 fifty-two At low speed (automatic and manual), X4 terminal is disconnected, the relay acts, and the motor level is switched to level 8 Fd.01 three Data format: 1-8-n-1 At high speed, X4 terminal is closed, the relay acts, and the motor stage is switched to level 2 Fd.02 one Local address: 1 F4.05 fifty-six X5 multi segment frequency input terminal 1 F4.06 fifty-seven X6 multi segment frequency input terminal 2 F4.11 zero point five X1-x6 terminal filtering time 0.5s F4.16 one thousand X4 terminal anti logic F4.20 nine Y3 fault reset, y3-gnd running state Closing terminal F4.21 one hundred Y3 terminal anti logic low speed Automatic forward rotation X1+X4+X3 F4.30 two Relay 1 fault output auto reverse X2+X4+X3 F8.01 15.00Hz Multi segment frequency 1 Manual forward rotation X1+X4 F8.02 50.00Hz Multi segment frequency 2 Manual reverse X2+X4 F4.31 twenty-two Relay 2-motor switching function, invalid for 8-pole motor (low speed), valid for 2-pole motor (high speed) high speed High speed forward rotation X1 F9.02 one AI2 as PID feedback High speed reverse X2 Fd.00 six thousand and five Baud rate: 9600 switch Positive stop negative Self master Fd.01 three Data format: 1-8-n-1 1 0 1 2 0 1 Fd.02 two Local address: 2 F0.50 one factory reset F0.49=4000 rope saw special frequency converter application macro, only need to set this parameter after f0.50=1, you can set the above parameters Special functions of group A1 rope saw A1.00 Special machine function enable 0-1 one A1.01 Rated current of large frequency converter 0.1-1000.0A 112.0A A1.02 PID given current value 0.0-1000.0A 112.0A A1.03 PID feedback current value 0.0-1000.0A * A1.04 Motor switching delay 0.0-65.0S one A1.05 Rated speed of high-speed motor 0-65535rpm two thousand nine hundred and seventy A1.06 output frequency 0.00HZ-300.00HZ * A1.07 Output current 0.0A-1000.0A * A1.08 Output speed 0-30000 * U key terminal function Input terminal: X4=52 Motor switching terminal X3=18 Low speed and high speed switching terminal Output terminal function: PA/B/C=22 Motor switching output | |||||||
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