User's Manual
MG-304B
Spring Free Length Sorter
Table of contents
- Specifications
- Basic components
- Description of each part
1) Front side
2) LCD screen
3) Rear side
- Operating principle
- MG-304B Setting
1) Setting sequence
2) Program entry sequence using a keyboard
3) An example to enter a program using a keyboard
4) Adjustment sequence of dial gauge
6. Errors and troubleshooting
7. Wiring diagram
1. Specifications
1) Model : MG-304B
2) Measuring type : non-contact phase detection
3) Measuring range : -2 mm to +2 mm
4) Resolution : up to 0.01 mm (1/100 mm)
5) Input type : to enter a program using a keyboard
6) Sorting equipment: a. electronic sorting type (2-stage)
b. electronic sorting type (3-stage)
7) Power : 110 / 220VAC±10%, 50~60 Hz
2. Basic components
1. MG-304B sorter ………………………1EA
2. Motor ………………………………… 1EA
3. Electronic sorting equipment ………1EA
4. Magnetic base ……………………… 1EA
5. Sensor …………………………………1EA
6. Sensor tip ………………………………2EA
MG-304B sorter Non-contact sensor 2-stage & 3-stage separation plate
PM-S PM-M PM-L
Pitch control motor
3. Description of each part
1) Front side
①POWER : power on/off
②LCD Bright: brightness control of LCD screen
③ZERO :zero adjustment
④SENSOR : sensor connector
⑤0~9 :numeric keys
⑥CURSOR :Cursor move
⑦S+ , S- :manual operation of sorter
⑧ M+ , M-:manual operation of motor
⑨ESC :escape key
⑩ P+ , P-: manual operation of cylinder
⑪MODE :SET (setting mode) DRIVER (operating mode) switching key
⑫CLR :used to clear a number
⑬ENT :enter
⑭LCD : LCD screen
2) LCD screen
①SET MODE
◈Data should be entered in this mode.
② [ DRIVER 1 ] MODE
◈As Operating Mode 1, the distribution of the
products that are currently being produced are
displayed in the bar graph form.
* GOOD :Number of good products
* PASS : Acceptance ratio
* T C N : Total number
* N G :Number of continued bad products
*– N G :Number of - bad products
*+ N G :Number of + bad products
③ [ DRIVER 2 ] MODE
◈As Operating Mode 2, the distribution of products that
are currently being produced are displayed in the
histogram form.
* GOOD :Number of good products
* PASS : Acceptance ratio
* T C N : Total number
* N G :Number of continued bad products
*– N G :Number of - bad products
*+ N G :Number of + bad products
3) Rear side
①FUSE : 250V 0.5AFUSE
②Power selection switch :selection of Power (AC 110V / 220V)
③POWER :power input
④NO / NC :selection of contact point for shutdown
⑤ OUT :output terminal for shutdown [A and B contact points]
⑥GAIN :adjustment of sensor sensitivity
⑦CYLINDER :cylinder output terminal for sensor protection (optional)
⑧SOL :output for sorting equipment
⑨CW / CCW : selection of motor rotational direction
⑩MOTOR :output for stepping motor
⑪MOTOR : output for AC motor
⑫RS-232C :communication terminal to a computer (issue of results)
⑬ SIGNAL :input for proximity switch signal
4. Operating principle
5. MG-304B Setting
1) Setting sequence
2)Program entry sequence using a keyboard
◈ 1. –NG SELECT [0.20] : to enter - sorting tolerance
◈ 2. –NG MOTOR [0.10] :to enter the - motor section tolerance
(two thirds of - sorting tolerance)
◈ 3. +NG SELECT [0.20] : to enter + sorting tolerance
◈ 4. +NG MOTOR [0.10] : to enter the + motor section tolerance
(two thirds of + sorting tolerance)
◈ 5. MOTOR TIME [002] : to enter the operating time of a motor attached to a pitch support
(1 = 1/200 revolutions)
◈ 6. CYLINDER TIME [000] : to enter the operating time of a cylinder for sensor protection
(used only for large machines. If not used, enter [000]).
◈ 7. SOL TIME [050] : to adjust the time that the blade of the sorting equipment is open.
◈ 8. GOOD COUNTER : automatic shutdown when a production quantity has reached
SET [100000] the set value
◈ 9. NG COUNTER : automatic shutdown when bad products arecontinued. in either
SET [10] - or + direction and theirquantity has reached the set value
(turn the power switch off and on to reset)
◈10. TOTAL COUNTER : to clear the total quantity (press "CLR" key to clear)
Clear [CLR]
◈11. GOOD COUNTER : to clear the quantity of the good products only
Clear [CLR] (press "CLR" key to clear)
Note: if you want to change data values while operating the machine,
shut the machine down and re-enter them.
3) An example to enter a program using a keyboard
* 1. –NG SELECT [0.20] :set the - sorting tolerance to -0.20 mm
* 2. –NG MOTOR [0.10] :set the - motor tolerance to -0.10 mm
* 3. +NG SELECT [0.20] :set the + sorting tolerance to +0.20 mm
* 4. +NG MOTOR [0.10] :set the + motor tolerance to +0.10 mm
* 5. MOTOR TIME [002] :set the motor operation revolutions to 2/200 revolutions
*6. CYLINDER TIME [000] :set the cylinder operation time to 0 sec
*7. SOL TIME [050] :set the operation time of the separation plate to 0.5 sec
*8. GOOD COUNTER SET [100000] :set the number of good products to 100000
*9. NG COUNTER SET [10] :set the number of the continued bad products to 10
* 10. TOTAL COUNTER Clear [CLR] :clear the quantity of the products (press CLR key)
* 11. GOOD COUNTER Clear [CLR] :clear the quantity of the good products (press CLR key)
◈UNIT : MOTOR TIME :revolutions
SOL TIME : second
CYLINDER TIME :second
4) Adjustment sequence of dial gauge
①Set the mode to SET mode.
②Rotate the machine manually until a green lamp on the
front of the sorter is lit (a spring projected at
maximum).
③Secure the sensor to the front side of the spring
(standard value: 5-10 mm).
④Set to zero the dial gauge attached to the rear side of the
sensor.
⑤If "< >" is displayed on the screen, turn the ZERO volume to
- direction and press the ENT key. When turning it to
+ direction and pressing ENT, the "<" and ">" shown on the
screen disappear (if "< >" is not displayed, go to ⑥below).
⑥Set the screen to 00.00 using the ZERO volume.
⑦Set the - sorting tolerance (turn a dial gauge
counterclockwise as the value of the - sorting tolerance
entered). If the value on the screen is less than -20.00,
press the ENT key. If greater than -20.00, set GAIN on the
rear side of the sorter to 50%.
⑧Set to zero the dial gauge (clockwise) -> original point.
⑨Set the + sorting tolerance (turn the dial gauge clockwise as
the value of the + sorting tolerance entered). If the value on
the screen is less than +20.00, press the ENT key.
If it is greater than +20.00, press the ENT key and separate
the spring and the sensor and perform the setting again from ⑤
⑩Set to zero the dial gauge (counterclockwise)
-> original point
⑪Press the MODE key to select
DRIVER 1 or DRIVER 2.
⑫Operate the machine.
⑬Measure the product from the sorter that is displayed as <-00.00>.
If an error exists, correct it using the dial gauge attached to the rear side of the sensor.
◆ Caution when changing a sensor tip
Please grip the sensor tip by hand and loosen or tighten its nut lightly when changing it
(do not apply excessive force when loosening or tightening the nut).
6. Errors and troubleshooting
1) Errorschecks
Error message / Cause / ActionZERO SET ERROR / * In the adjustment sequence of the dia
gauge, "<" and ">" of "<-00.00>" have not
been set. / * Set the adjustment sequence of the dial gauge
again.
GOOD SET ZERO / * In the program entry sequence using a
keyboard, data has not been entered into
"8. GOOD COUNTER SET [000000]". / * In the program entry sequence using a keyboard, enter a required data into "8. GOOD COUNTER SET [000000].
NG SET ZERO / * In the program entry sequence using a
keyboard, data has not been entered into
"9. NG COUNTER SET [00]". / * In the program entry sequence using a
keyboard, enter a required data into "9. NG COUNTERSET[00].
GOOD COUNTER
SET / * In the program entry sequence using a
keyboard, the value entered into
"8. GOODCOUNTER SET [000000]"
has beenreached. / * In the program entry sequence using a keyboard, perform "11. GOOD COUNTER Clear".
NG COUNTER SET / * In the program entry sequence using a
keyboard, the value entered into "9. NG
COUNTER SET [00]" has been reached. / * Turn the power switch off and on again
2) Troubleshooting
Symptom / Cause / Action1. The dimension of the product is not the same as the one on the sorter. / * Zero point has been incorrectly set.
* The perpendicularity of the spring is not correct or a vibration occurs. / * With a measuring device, measure the product from the sorter that shows zero point, and correct using the dial gauge for the sensor.
* Resetting of the spring machine.
Prevent the spring from vibrating using a jig (the jig should be farther from the sensor than the spring.)
2. The motor does not operate. / * The thread of the pitch support is not smooth. / * Turn the pitch support manually and set the machine when the smoothest section is obtained.
3. The operation of the sensor is abnormal. / * Excessive force or shock has been applied while changing the sensor tip.
* The thermal energy from the heat treatment equipment affects the sensor. / * Set the sorter to SET mode and move a hand on the end of the sensor. At this time, the value on the screen should be changed (if unable to change, please contact us).
4. The sorting equipment does not operate smoothly or the return of the blade is abnormal / * Foreign material may be present inside the sorting equipment or the bushing of the blade axle, or the return spring has weakened. / * Clean the inside of the sorting equipment and check the return force of the spring.
5. The data of the sorter has been cleared or changed. / * Occurrence of external electrical noise / * Check the ground of the machine.
* Re-enter data after power on while the S button of the sorter is pressed.
7. Wiring diagram