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Таблица режимов эрозионный проволочный станок(Мануал)

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线切割控制柜使用说明书
Wire cut machine cabinet manual
一) Instructions for high frequency power supply
1.Main technical parameters
1.1 Rectangular pulse
pulse width: ti:2uS---128us Adjustable
Pulse interval ratio (Toff/Ton) :4---9 Adjustable
Power tube:7 gear arbitrary adjustment
1.2 Group number pulse
Sub pulse width ti/Sub pulse interval to
Total pulse width ti
16us---240us
Total pulse interval to
1---9ti
1.3 Processing voltage
100V
1.4 Processing current
0.3A---6A
1.5 power output
8us/8us
7 sets of outputs
1.6 Maximum cutting thickness
≥400mm
1.7 Maximum processing efficiency
1.8 Power supply:AC380
≥160mm2/min
50HZ
2.Main structure and working principle
The high-frequency power supply is composed of main vibration circuit,
pulse width regulation circuit, interval regulation circuit, power
amplification circuit and rectifier circuit.
The main oscillator circuit generates the main frequency pulse by 8MHz
crystal oscillator, Input to American original chip through frequency
division circuit, Control pulse waveform, the waveform is pre amplified,
drive VMOS power tube, output stable and neat processing signals. The
power amplifier circuit adopts three high-performance and high-power VMOS
FET, 7 switches select operation. VMOS tube is characterized by fast
switching speed, voltage drive, large output current, and special pulse
power supply for wire cutting with high efficiency and high finish.
3.Panel operation method and instructions
3.1
The setting of pulse width can be adjusted by pressing the up and
down buttons, which can be adjusted by 2-128us
3.2
The setting of pulse interval ratio can be adjusted by pressing up
and down buttons. The setting is adjustable from 4-9
3.3
Power tube selection 0-7 adjustable
(二)Common fault analysis and maintenance
1.Drive power part
1.1 X、Y The stepper motor cannot be energized and locked.
(1)The rectifier bridge of driving power supply is damaged.
(2)+12V power supply failure or disconnection.
1.2 X or Y stepper motor is out of phase.
(1)The stepper motor is disconnected.
(2)The drive board is faulty.
(3)The computer control card is faulty or disconnected.
1.3 The X or Y stepping motor loses its step.
(1)Poor contact of aviation plug or rectangular plug.
(2)Rectifier electrolytic capacitor failure.
2.High frequency power supply
2.1 The voltmeter has no voltage indication.
(1)The fuse core is burnt out, and the rectifier bridge or line is
short circuited.
(2)Poor contact or broken wire.
(3)The rectifier bridge is damaged and open circuit.
2.2 There is processing voltage and no high frequency output.
(1)Control card failure
(2)Use a thick wire to short circuit between the positive and
negative of the high-frequency power supply. If there is current, it is
an open circuit of the high-frequency output line.
2.3 Abnormal increase of processing current
(1)The VMOS power tube is damaged. Turn on the power output switch
in turn, find out the power tube with high corresponding current and
replace it.
(2)The oscillation circuit fails and the duty cycle of the pulse
signal becomes larger.
(3)The reverse diode connected in parallel at the red and black
high-frequency output terminal breaks down.
(4)The sampling frequency conversion circuit of the control card
(controller) is faulty.
High frequency power supply cutting specification table (for reference)
One time
cut
The
thickness
of the
workpiece
(mm)
Pulse
width
Interval
0-15
16
4-6
6
50
50
15-30
32
4-6
6
50
50
30-60
32-64
4-7
4-6
50
50
60-100
C8
7-9
3-5
50
100
100-200
C8
7-9
2-4
50
100
200-500
C8
7-9
2-4
50
100
Current
Wire
speed
Tracking
Tip:thickness over 100mm, pulse width/interval set bigger, current set lower, keep
ammeter pointer stable
The
thickness
of the
workpiece
0-30mm
Three
time cut
30-60mm
Pulse
width
Interval
Current
32
4-6
6-7
50
50
8
8
3
30
50
2
9
1-2
20
50
64
4-6
6-7
50
50
16
8
3
30
50
8
9
1-3
20
50
64
5-6
5
50
50
8
4
8
1-3
60-90mm
16
16
Wire speed Tracking
30
20
50
50
100-200mm
200-500mm
C8
7-9
2-4
50
100
32
9
3
30
100
8
9
1-3
20
100
C8
7-9
2-4
50
100
32
9
3
30
100
8
9
1-3
20
100
(Tip:cut copper, pulse width set a little bit bigger)
Copper
aluminum
alloy
0-30
32
4-6
5-6
50
50
30-60
64
4-6
5-6
50
50
6-8
5-6
50
50
60-100
64
100-200
C8
9
2-4
50
100
200-500
C8
9
2-4
50
100
0-30
32-64
5-6
5-6
50
50
30-60
64
5-6
5-6
50
50
60-100
64-C8
7-9
4-5
50
50
100-200
C8
9
4-5
50
100
200-500
C8
9
3-4
50
100
(三)List of vulnerable parts of control cabinet
ITEM
MODEL
NUMBER
Application site
1
VMOS
IRF640
17
Driving power supply
2
VMOS
IRF250
7
High frequency power supply
3
Axial flow
120/AC220V
2
High frequency power
fan
4
diode
supply/Driving power supply
FR307
4
High frequency power supply
(四)External connection
4.1 The four core power socket is the power input terminal of
the control cabinet:
4 is Zero line N;
1、2、3 is Phase line L1、L2、L3
The grounding terminal shall be reliably grounded
4.2 16 Core aviation plug:
No.
1
2
Mean
PE
No.
10
11
Mean
168
G0
3
4
5
6
7
8
9
X11
Y11
Z11
X23
Y23
Z23
12
13
14
15
16
GO
343
S
S
S’
30 Core aviation plug:
No.
1
2
3
4
5
6
8
9
10
Mean
PE
XA
XB
XC
XD
XE 3L+ YA
YB
YC
No.
11
12
13
14
15
16
17
18
19
20
Mean
YD
YE
3L+
UA
UB
UC
VA
VB
VC 3L+
No.
21
22
23
24
25
26
27
28
29
COM1
340
341
COM
339
351
353
354
Mean
7
Tip: 16 Core aviation plug definition and interpretation:
2、3 pins connected to AC 220V. Water pump connected to pins 4, 5
and 6.
The wire conveying motor is connected to pins 7, 8 and 9.
10 pin ("168") broken wire protection (middle of upper
cantilever or lower cantilever).
The work piece is connected to pins 11 and 12 (G0).
Pin 13 ("343") is connected to working sampling (sampling
"+").
14. 15 pin (s) is connected to the conductive block (the upper
and lower cantilevers are close to the front guide wheel)
16 pin (s') connected to sampling (sampling "-")
31 Core aviation plug definition and interpretation:
XA, XB, XC, XD and XE are connected to X-direction stepping motor.
YA, YB, YC, YD and YE are connected to Y-direction stepping motor.
Wiring sequence:Red, yellow, blue, white, black. The green line is
generally the power line connected to the "7" and "13" pins. "Com" is the
blue line (0V) of the proximity switch, "339" is the overtravel protection
switch, "351" is the brown line terminal block (12V) of the proximity
switch. “com1”=“com”(Common end 0V)
。
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