Application Of Pro-face Gp In Printing Industry

There are more and more GPs in various industries. The following is a use of GP in the printing industry. Pro-face This is a hot stamping device Pro-face</ Strong>
Design requirements: In order to match the paper machine hot stamping, there are 5 axis precise positioning systems, including 3 axis vertical axis and 2 axis horizontal axis, which require precise positioning. The required error is not more than 5mm per 950mm; 4 axis requirements Constant torque operation; 12-channel temperature control, requiring precise temperature control within 1 °C printing industry
We are designing this system to strive for the most advanced and fastest, and strive to achieve the best printing industry after research, After considering various options, we decided to adopt the following solutions:

1. GP
Pro-face touch screen, GP2500-TC42-24V, main performance: 10.4 inch TFT color display, 640*480, 256 colors, 4MB FEPROM, 256KB SRAM, Ethernet, expansion SIO, CF card printing industry< Br />
2. PLC
Yokogawa:
CPU: F3SP28-3S
Programming method: Four methods in IEC1131-3 language (ladder diagram, command list, function block diagram, sequence function flow chart)< Br /> control method: sequential control hot stamping
program capacity: standard 20K step (standard) or 32K step hot stamping
basic instructions: sequential instruction processing speed is 0.12 microseconds hot stamping
advanced instructions: transmission The instruction processing speed is 0.045 to 01.8us.
Program storage mode: RAM or EPROM.
Intelligent and efficient instructions: floating-point arithmetic function, communication string function, PID control command, etc.

Power supply unit: F3PU20-0N
Input rated voltage: AC 100-240 volts.
Applicable to 9— 16-slot board.

Input unit: 32 points 24V DC input type F3XD32-3F (one piece).

Connected---Extended connections and connectors must be purchased separately.


Output unit: 16 points 2A, 100 & mdash; 240VAC \ 24VDC relay output type F3YC16-
0N.
Position control unit: 8-axis control F3Y18-0N 8-axis 499.75Kpps for pulse motors,
3.998Mpps for servo motors.

Connected----Extended connections and connectors must be purchased separately.

Temperature Control Unit

Input: F3CT04-1N (4-channel thermocouple input, 0.5 second scan period, 4-20 mA
continuous PID control)
Thermocouple mode: K-200 to +1000 degrees Celsius (0.1 degrees Celsius).

Output:
Output signal range: voltage —— +/-10 volts (K-2048 to 2047)

Resolution: 1/4096< Br /> conversion speed: 500 microseconds / channel (conversion cycle: 1 time / 2 milliseconds).
Total accuracy: +/-1.0% F.S. (0 to 5 degrees Celsius).
Insulation method: The light input insulation method is adopted between the analog input terminal and the internal circuit of FP2. The DC/DC converter is insulated between the analog input and the analog output.
Analog output: Use shared memory settings to keep/not protect

3. Servo Drive System
We use a Panasonic AC servo system (motor MDMA202, drive MDDA203) with a good cost performance as a 2.0KW medium inertia drive system. Considering the accuracy of machining, we can relax to 2.5KW.
The following are the technical features of Panasonic (for reference only):

A Series Features:
1. Using Panasonic's unique algorithm, the speed and frequency response is increased by 2 times to 500HZ;
The positioning over-adjustment time is shortened to 1/4 of the previous products.
2. With resonance suppression and control function: the rigidity of the letter cover mechanical is insufficient to achieve high speed positioning.
3. With full-closed control function: The external high-precision grating scale is used to form a full-closed loop control system to further improve the system accuracy.
4. A series of convenient functions:
(1) Built-in frequency analysis function (FFT), which can detect the mechanical resonance point, and then adjust the system.
(2) There are two automatic gain adjustment methods: regular automatic gain adjustment and real-time automatic gain adjustment.
Axis.
5. Motor protection level up to IP65, environmental adaptability.
6. The motor can be equipped with a variety of encoders to meet various user needs:
(1) common type: 2500p / r incremental encoder.
(2) High-precision type: 17-bit type (217) incremental encoder
(3) Special type 217-bit type (217) absolute encoder.

Servo drive protection function list:
Control power supply under voltage protection: Low voltage caused by instantaneous power failure or insufficient power supply capacity.
Overvoltage protection: The converter voltage due to regeneration exceeds 400 VDC.
Overcurrent protection: The output current of the converter is too large.
Overheat protection: The power components inside the drive are abnormally hot.
Overload protection: The current driven exceeds the rated current for a long time.
Regenerative overload protection: The amount of energy generated exceeds the capacity of the regenerative discharge resistor.
Overspeed protection: The motor speed is outside the upper limit of the parameter setting.
Position deviation too large protection: The number of position deviation pulses exceeds the parameter setting value.
Deviation counter overflow protection: The position deviation pulse amount is set to more than 2 to the 27th power (134217728).
Absolute position system power loss: Encoder power supply failure.

Temperature control part scheme
Customer requirements: measurable temperature range 0----200 degrees, accuracy up to +/-1 degree
resistance Pt. 100/thermocouple+PLC temperature module (analog output + solid state relay):
Adopt pid adjustment control mode with accuracy up to +/-0.5.

After the whole solution is shaped, start writing programs and use the touch screen.

First, touch screen screen: (for reference only)
The first screen boot screen, above is a picture, the following four buttons to switch between the face, switch to a different screen, carry out Different operations.

The first part
The second operation setting screen:

The upper axis 1-5 is manual Action, hold down, the axis is fine-tuned at a relatively small speed. “Automatic operation is invalid” button is pressed to become: “Automatically run valid”, at this time, when the paper machine gives a bronzing signal, each axis will set its own step size according to the step size. If it is "automatic operation is invalid", regardless of the signal, each axis does not work.
Third screen: Step size setting screen.
Set the movement and step size of each axis.

The fourth picture: anodized aluminum Setting:
Set the total length of the electrified aluminum, and how many alarms remain, showing the length of the walk.
There is also an "Electrical Aluminum Length Calculation Invalid/Valid" button.
Fifth frame: Automatic speed setting:
Set different speeds according to different step sizes:

Sixth frame: Manual speed setting:
In the second screen, manually adjusting the speed of the 1-5 axis is set by this screen.

The seventh picture: servo motor Acceleration/deceleration time setting

Second part
The eighth picture: heating picture:

The interviews in the 12 districts The temperature is in front of the heating indicator.
The following four buttons switch to different screens:
Night heating: Set the time, and the time starts to warm up.
Electric heating zone setting screen: Set the control temperature screen of that zone.
Electric heating zone and switch: Set the temperature heating switch.
Ninth: Night heating:

Tenth: Electric heating zone Set
eleventh: electric heating zone and switch

Part 3: Alarm
twelfth, alarm screen.
Prompt alarm and prompts the use of anodized aluminum alarm. Next to it is the servo alarm clear.

Second, PLC programming:
The main features of Yokogawa's PLC are: fast speed. Temperature control is simple and convenient.

Part 1: Temperature Control:
There is a module in Yokogawa dedicated to temperature control: F3CU04-1N, 4 channels of temperature input, 8 channels of analog (switching, freely switchable) ) Output. Through Yokogawa's toolbox software, you can write the input mode, control mode, and output mode to the module (with cpu). After doing a self-tuning, and then reading and writing the address of the module through plc, you can read the temperature very easily. , set the control temperature, heating / no heating. By practice; the module can control the temperature to +/- 0.5 °C.

Part II: Servo Control:
Through the eight-axis temperature control module: F3YP18-0N, the highest frequency: 3.998Mpps. Since the accuracy of the module and the accuracy of the servo are relatively high, the operation and setting of the module can control the operation and stop of the servo motor more accurately, which can meet the requirements of the customer.

After debugging, the entire system meets the requirements of the customer. Although only a small part of the GP function is used in this example, most of the other functions are implemented in plc. However, it can be seen that the touch screen can be better used in this field.