Sewha SI 4200 User manual

Digital Weighing Controller
SI 4200
Instruction Manual
Ver. 3.15 May 2011

Digital Weighing Indicator
SI 4200
- 2 -
CONTENTS
1. Before Installation
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3 page
2. Introduction
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4 page
3. Specification
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5 page
4. Installation
4-1. External Dimension & Cutting Size
4-2. Load Cell Installation
4-3. Installation Components
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11 page
11 page
11 page
12 page
5. Set-up
5-1. Calibration
5-2. TEST Weight Calibration Mode
5-3. Simulation Calibration Mode(Without Test Weight)
5-4 Unit Calibration Mode
5-5. F-Function Setting
5-6. F-Function List
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14 page
14 page
14 page
17 page
20 page
22 page
23 page
6. Interface
6-1. Serial Interface (RS-232C)
6-2. Current Loop Interface
6-3. Print Interface (Option 01 : Centronics Parallel Interface)
6-4. Analog Output Interface (Option 02 : 0~10V)
6-5. Analog Output Interface (Option 03 : 4~20mA)
6-6. Serial Interface (Option 04 : RS-232C / 422 / 485)
6-7. BCD INPUT (Option 05)
6-8. BCD OUTPUT (Option 06)
6-9. Command Mode
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35 page
35 page
39 page
40 page
42 page
43 page
44 page
45 page
46 page
47 page
7. Error & Treatment
7-1. Load Cell Installation
7-2. Calibration Process
7-3. Indicator Error & Treatment
7-4. Indicator Test Mode
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49 page
49 page
49 page
50 page
51 page
Warrantee Certification
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52 page

Digital Weighing Indicator
SI 4200
- 3 -
1. BEFORE INSTALLATION
1-1. Caution / Warning Marks
This mark warns the possibility to arrive death or serious injury in
case of wrongly used.
This mark cautions the possibility to arrive serious human body
injury or product lose in case of wrongly used.
1-2. Other Marks
Warning for Electric Shock or Damage.
Please do not touch by hand
Protective Ground(Earth) terminal
Prohibition of Operation process
1-3. Copy Rights
1).All Right and Authority for this Manual is belonged to Sewhacnm Co.,Ltd.
2).Any kinds of copy or distribution without Sewhacnm Co.,Ltd’s permission will be prohibited.
1-4. Inquiries
If you have any kinds of inquiries for this model, please contact with your local agent or Head Office.
Head Office : Sewhacnm Co.,Ltd.
Website : http://www.sewhacnm.co.kr
Email : i[email protected] , [e-mail]
Warning
Caution

Digital Weighing Indicator
SI 4200
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2. INTRODUCTION
2-1. Introduction
Thank you for purchasing, this “SI 4200” Industrial Digital Weighing Controller.
This “SI 4200” model is advanced model for “Quantity Control application”, with 2ports serial port
interfaces and precise weighing control system, you can upgrade your weighing process.
This “SI 4200” Weighing Controller is suitable for any kinds of Weight Capacity with Counting by “Unit
Weight Calibration”.
Enjoy your process with “SI 4200” Weighing Controller.
2-2. Cautions
1) Don’t drop on the ground or avoid serious external damage on item.
2) Don’t install under sunshine or heavy vibrated condition.
3) Don’t install place where high voltage or heavy electric noise condition.
4) When you connect with other devices, please turn off the power of item.
5) Avoid from water damage.
6) For the improvement of function or performance, we can change item specification without prior notice
or permission.
7) Item’s performance will be up-dated continuously base on previous version’s performance.
2-3. Features
1) All Modules and Option Cards are isolated to maximize accuracy and performance.
2) External input terminal inside.(4pcs:Can be set by F11 mode)
3) By using “Photo-Coupler” on each module(Option, Analog board, In/Out), we improved “Impedance
problem”, “Isolation ability among inputs”, “Leading power problem”, and “Noise covering function”.
4) Data back-up function, when the sudden power off.
5) “Set value Error”check function added. –Check “Set values for each weighing mode”.
- If there is any wrong set value, “E” will be display and will not start weighing process
6) Polycarbonate film panel, strong for dust and water.
7) Weight Unit selection Function added. (“g”, “kg”, “t” selectable – F40)
8) Variable options(Order in advance, Refer Chapter 6. Interface) –“RS-232C” Standard installed.
9)2port Serial Interface available –various applications are available.
10) Simulation Calibrate mode added (Can calibrate without Test weight)

Digital Weighing Indicator
SI 4200
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3. SPECIFICATION
3-1.Analog Input & A/D Conversion
Input Sensitivity
0.2㎶/ Digit
Load Cell Excitation
DC 10V ( - 5V ~ + 5V )
Max. Input Signal
Max.3.2mV/V
Temperature Coefficient
[Zero] ±16PPM/℃
[Span] ±3.5PPM/℃
Input Noise
±0.3㎶P.P
Input Impedance
Over 10㏁
A/D Conversion Method
Sigma-Delta
A/D Resolution(Internal)
520,000 Count(19bit)
A/D Sampling Rate
Max. 500times / Sec
Non-Linearity
0.005% FS
Display Resolution(External)
1/20,000
3-2. Digital Part
Display
Parts
Specification
Display
Main Display
7Segments, 7digits VFD green Color
Size :12.7(H) ×7.0(W)mm
Sub-Display
7Segments, 6digits FND, Red Color
Size : 9.2(H) ×4.8(W)mm × 3lines
Min. Division
×1, ×2, ×5, ×10, ×20, ×50
Max. display value
+999,950
Under Zero value
"-" (Minus display)
Status lamp
Steady, Zero, Tare, RUN, LIMIT, Print, Comm.
" ▼" Condition display Lamp
kg, g, t / SP1, SP2
Red / Yellow-Green LED Display(3Ø )
K e y
Number Key, Function, CAL. Lock key (14pcs)
3-3. General Specification
Power Supply
AC110/220V(±10%), 50/60Hz, about 30VA
Operating Temperature Range
-10℃~ 40℃
Operating Humidity Range
Under 85% Rh (non-condensing)
External Dimension
200mm(W)ｘ105mm(H)ｘ165mm(L)
Net Weight(kg)
About 2.3kg
Gross Weight(kg)
About 3.0kg
※AC 110V, Power supply is an optional before ex-factory.

Digital Weighing Indicator
SI 4200
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3-4. Option Card
Option No.1
Printer Interface : Centronics Parallel
Option No.2
Analog Output (0~10V or 0~5V)
Option No.3
Analog Output (4~20mA)
Option No.4
Serial Interface : RS-232C / 422 / 485
Option No.5
BCD INPUT (P/N change purpose)
Option No.6
BCD Output
Option No.7
Ethernet
※Serial Interface (RS-232C) or Current Loop is Standard installed.
In the Optional Serial port, there is no Current Loop function
3-5. Front Panel (Display / Key Pad)
3-5-1. Status Lamp (ANNUNCIATORS) : “▼” Lamp is “ON”.
Steady
When the weight is Steady, “▼” Lamp is turn on.
Zero
When the current weight is Zero, “▼” Lamp is turn on.
(Displayed weight is Zero, “▼” Lamp is turn on.)
Tare
Tare function is set, “▼” Lamp is turn on. (Tare Reset “▼” Lamp is turn off.)
RUN
Under Packer Mode(F21-02) setting.
Start Packer Mode “▼” Lamp is ON
LIMIT
Under Limit Mode(F21-01) setting. “▼” Lamp is ON.
Print
When print key input or Auto print, “▼” Lamp is turn on.
Comm.
When indicator transfers or receives data from other devices, “▼” Lamp is turn on.
(If the “▼” is off although there is some data transference, please check communication
settings).
Weight Display
Status Lamp
Function Key
Unit Weight
Count
Weight Unit
P/N
Calibration Lock-Key

Digital Weighing Indicator
SI 4200
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3-5-2. Key Operation
Make Weight value as Zero.
Under F08, you can set the Zero key operation range, as 2%, or 5%, or 10%, or 20% of
Max. Capacity.
※Under “Tare” key input, Zero key will not be activated.
Make Weight value as Zero, including Tare Weight.
Under F09, you can set the Tare key operation range, as 10%, 20%, 50%, or 100% of
Max. Capacity.
Tare setting : Under F10-00 setting, “TARE” key input
Under F10-01 setting, “Tare”+ No. key + “Enter”
Remove set TARE value.
Under Packer Mode(F21-02), Start the packer mode process.
First input is “START”, Second input is “STOP”
Manual “Unit Weight” input Key.
If you already knew the “Unit Weight”, you can input “Unit weight” without calibration.
You can set each weighing process as a certain P/N.
Each weighing process will be saved with FINAL, PRE1, PRE2, and Free Fall set
value.(Max. 50 kinds of P/N you can set)
And you can call certain P/N with each set value.
You can set SP1 value through this key.
You can set SP2 value through this key.

Digital Weighing Indicator
SI 4200
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You can set FREE FALL value through this key.
1. Manual Print (F38-00 setting, under F35-01)
2. Manual weighing Data save for accumulated weighing count and weight.
(F01-00 / 02 setting)
3. Calibration mode
- Digit setting
Whenever pressing “0”key, digit will be change 1, 2, 5, 10, and 50.
- Decimal point position
Whenever pressing “0”key, decimal point will be change.
1. Modify the set value during setting process.
2. Calibration mode
- Move back to previous step.
F-function Mode.
- F-function Exit : Press “Clear” key, once.
- F-Test Mode Exit : Press “Clear” key, twice.
1. Save set value during setting process.
2. Calibration mode
- Save current setting and move to next step.
3. F-Function mode
- Save current F-function setting, and move to next F-function
1. “F-TEST” Mode Entrance : Press “F” key for 5sec.
2. Under “F-function Mode”, Move to next Function or move to certain function
No.(Press function No. and press “F” key)
3. Function key (Refer “Function keys”)
Enter/Exit to “Calibration” mode.
“ON” : Enter to Calibration Mode.
“OFF” : Exit from Calibration Mode.

Digital Weighing Indicator
SI 4200
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※“Function Keys”(Combined Key Function)
Enter “Unit Weight Calibration” mode.
- Please refer “5-4. Unit Calibration”.
Print all P/Ns’ accumulated weighing count and weight.
(Grand-Total Print)
High Range value setting (N.G Relay).
Under Range value setting(N.G Relay)
Print current P/N’s accumulated weighing count and weight.
(Sub-Total Print)
Display accumulated weighing count and weight
Max. accumulated weight display : 21,474,839,647(g, kg, ton)
Max. accumulated weighing count : 999,999times
※Under F15, you can set what kinds of accumulated count and weight.
- F15-00 : Display current P/N’s accumulated count and weight.
- F15-01 : Display all P/Ns’ accumulated count and weight
Delete all P/Ns’ accumulated weighing count and weight
(If you set F44-01, the data will be automatically deleted after “Grand-Total
Print).
Delete current P/N’s accumulated weighing count and weight
(If you set F44-01, the data will be automatically deleted after “Sub-Total
Print).
※After Pressing key, you have to input above function keys within 5sec. - After 5sec, the key
activation is loose
※If you set “F51-01” you can check the / key activation through Main display.
※After Pressing “ ”, “ ” key, non-function keys are input, the “ ”, “ ” key
activation will be loose.

Digital Weighing Indicator
SI 4200
- 10 -
3-6. Rear Panel
○
1POWER AC IN
- Power switch : Power on/off switch.
- Fuse : AC250V / 0.5A , φ5.25 , 20mm.
- AC IN : Available Input AC 110V / 220V.
※The standard power supply isAC 220V(Fixed when ex-warehouse), if you want to have AC 110V,
please inform in advance.
②Option Card 1
③Option Card 2
※Option Card Connector installed for Optional Interface or Output.
(Printer I/F, Analog out, RS-422/485, or RS-232C(two port)
④LOAD CELL Connector (N16-05)
⑤SERIAL I/F
“RS-232C” or “CURRENT LOOP”(9Pin, D-Type Female) are built-in as standard
⑥External Input : External control input for wired remote control.
Refer to F-Function F11 to select desired function mode.
Input signal …………………………… Optical-Isolator
⑦Relay Output Terminal : Set point(SP1, SP2, SP3, SP4) and Finish, Empty relay output.
(Refer “F21” setting.)
Warning
③OPTION CARD
②
○
3
○
6
○
5
○
4
○
7
○
1
○
1

Digital Weighing Indicator
SI 4200
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4. INSTALLATION
4-1. External Dimension & Cutting Size
(External Dimension) (unit : mm)
(Cutting Size) (unit : mm)
4-2. Installation Components
Power Cable
Communication Connector(D-SUB 9P)
Load-cell Cable
94
188
165
105
200
162.0
92
186

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SI 4200
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4-3. Load Cell Connector Specification
4-3-1. Load Cell Connector Specification
4-3-2. Load Cell Installation
1) You can connect Max. 8pcs of same capacity Load cells at once. (350Ω)
2) You have to make horizontal balance on the ground.
3) If you install more than 2pcs of Load cells, use Summing box and adjust output signal difference as
minimum. It can make wrong weighing process caused by each load cell’s variation.
4) If there is some temperature difference around Load cell, it can cause wrong weight measurement.
5) Don’t do Welding job or Arc discharge around installation place. But, there is no choice, please
disconnect power cable and Load cell cable.
6) If you measure static electricity material, please make earth between down part and up part of Load
cell.
Red
White
Green
Blue
Shield

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SI 4200
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4-2-4. Formula to plan the precise weighing system
This “SI 4200” weighing controller’s Max. input sensitivity is 0.1㎶/ Digit.
And for precise weighing system, the following formula must be satisfied.
Caution : “Input sensitivity” means Min. output voltage variation of weighing part to change 1digit. So,
please do not make large input voltage to make reliable weighing system.
Single Load cell use
0.2㎶≤
EⅹBⅹD
A : Load cell capacity(kg)
B : Load cell Voltage(mV)
D : Digit
E : affirmation Voltage of Load cell
N : Number of Load cell
A
Plural Load cells use
0.2㎶≤
EⅹBⅹD
AⅹN
Example1.)
The number of Load cell : 1pcs
Load cell capacity : 500kg
Load cell Rated output : 2mV/V
Division : 0.05kg
Affirmation Voltage of Load cell : 5,000mV
Max. Capacity of Weighing System : 300kg
Then, estimation result for this weighing system with formula,
5000ⅹ2ⅹ0.05
= 1 ≥ 0.2㎶
The calculated value is larger than 0.2㎶,
so this system has no problem.
500
Example2.)
The number of Load cell : 4pcs
Load cell capacity : 500kg
Load cell Rated output : 2mV/V
Division : 0.10kg
Affirmation Voltage of Load cell : 5,000mV
Max. Capacity of Weighing System : 1,000kg
Then, estimation result for this weighing system with formula,
5000ⅹ2ⅹ0.10
= 0.5 ≥ 0.2㎶
The calculated value is larger than 0.2㎶,
so this system has no problem.
500ⅹ4
※According to “Resolution” or “Capacity”, it might not be calibrated like calculation.
Caution
!

Digital Weighing Indicator
SI 4200
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5. SET-UP
5-1. Calibration
Adjust weight balance between “Real weight” on the load cell(Weight Part) and “Displayed weight of
Indicator”. When you replace LOAD CELL or Indicator, you have to do Calibration process once again
5-2. Test Weight Calibration Mode (Using Test weight)
※remarks : In case that “P-W”is displayed, you have to check the pass word.
Prepare At least 10% of Max. capacity of your weighing scale, and remove “CAL-BOLT” on the Front
panel and press “CAL - LOCK S/W” inside.
※remarks : In case that “P-W”is displayed, you have input the pass word to start
calibration mode.
1. At normal mode, remove “CAL-BOLT” on the Front panel
123
2. And press “CAL - LOCK S/W” inside.
Check the “SET-CAL. Massage on display.
5et-Cal
※For the save the each step, press key, for the cancel or move back, press key.
3. If you press key, Calibration Mode starts.
After displaying “CAPA”,
C999999
4. Please input Max capacity of your weighing scale,
And press key.
Ex) Load cell CAPA : 20kg, division : 0.001 Input 20000
C 20000
5. define the optimal position or Decimal point
Whenever pressing key, Decimal point will be changed.
Ex) Load Cell CAPA: 20kg, division : 0.001kg input 20.000
p 20.000

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SI 4200
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6. Press key to save and move to next step.
p 20.000
7. Define the optimal Digit/Division value of weighing measurement.
Whenever pressing key, the Digit/Division value will
be changed like 1->2->5->10->20->50.
Ex) Load cell CAPA: 20kg, division : 0.001 Input division “1”
d 1
8. press key to save the Digit/Division value and move
to next step
d 1
※Caution : (Max. capacity value / division value) cannot be over 20,000.(as Indicator resolution is 1/20,000).
If the value is over 20,000, Error message “ Err 01 “ will be displayed and move back “CAPA” mode again.
9. When you press key, the indicator starts to find
“Zero” span..
dead
10. Indicator will search “DEAD weight” during 5sec, automatically.
After finding optimal “Zero” span , step is automatically
Moves to next.
Cal-1 0
※Caution : At this step, if there some force or Vibration on Weighing scale, and unstable condition will be
continued, “ErrorA” will be display, and “DEAD value” will not be calculated.
Under this condition, please remove force or vibration and process it again.
11. Span Calibration mode starts..
l 20.000

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SI 4200
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12. Input “Test weight” capacity. And press key.
Ex) Load Cell CAPA : 20kg, division 0.001
Use test weight(at least 2kg) which is 10% of max CAPA(20kg)
input test weight 2.000
l 2.000
13. After displaying “UP” ,please load “Test Weight” .
Ex) Load Cell CAPA : 20kg, division 0.001
Use test weight(at least 2kg) which is 10% of max CAPA(20kg)
Up
14. And press key.(Do not unload test weight)
Up
15. Indicator will calculate span value during 5sec, automatically
Cal-2 0
16. After calculation, span value displays on the display.
Please unload the test weight.
0.629238
※Caution : The “Test Weight’s value” must be at least 10% max. capacity of weighing scale.
“at least 10%” means to guarantee precise weighing process you have to make standard with at least
10% of weight of Max. capacity.
We programmed the calibration will not be done, when you load less than 10% of max. capacity.
17. Press key to save all calibration process.
After then it resets automatically.
(Now, fasten the Calibration Bolt. )
end

Digital Weighing Indicator
SI 4200
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5-3. Simulation Calibration Mode (Calibrate without Test weight)
Through this “Simulation Calibration Mode” you can make simple calibration without Test weight.
This calibration mode uses “Load cells’ max. capacity” and “Max. Output Rate(mV)”, the weight adjustment
degree might be less than “Test weight Calibration”.
The guaranteed resolution of this “Simulation Calibration” is 1/3,000.
Remove “CAL-BOLT” on the Front panel and press “CAL - LOCK S/W” inside.
Then, you can enter the Calibration Mode with SET-CAL and press key to enter “Simulation
Calibration Mode” with "CELL CAL" and start calibration mode with pressing key.
1. At normal mode, remove “CAL-BOLT” on the Front panel
123
2. And press “CAL - LOCK S/W” inside.
Check the “SET-CAL. Massage on display.
5et-Cal
3. Please press key, To start Simulation Calibration Mode
CellCal
※For the save the each step, press key, for the cancel or move back, press key.
4.Press key to enter calibration mode.
After displaying “CAPA”, you may set Max capacity..
C999999
5. After input Max capacity of your weighing scale (at the label),
press key
Ex) Load cell CAPA: 15kg, division : 0.05 Input 1500
C 1500

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SI 4200
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6. define the optimal position or Decimal point
Whenever pressing key, Decimal point will be changed.
p 15000
7. Press key to save Digit /Decimal point and
move to next step.
Ex) Load cell CAPA: 1500kg, division : 0.5 Input 1500.0
p 1500.0
8. Define the optimal Digit/Division value of weighing measurement.
Whenever pressing key, the Digit/Division value will
be changed like 125102050
Ex) Load cell CAPA: 1500kg, division : 0.5 Input division “5”
d 5
9. press key to save the Digit/Division value and
move to next step.
d 5
※Caution : (Max. capacity value / division value) cannot be over 20,000.(as Indicator resolution
is 1/20,000).
If the value is over 20,000, Error message “ Err 01 “ will be displayed and move back “CAPA” mode again.
10. Under this step, measure the “DEAD Weight of Weighing Scale
When you press key, the indicator starts to find “Zero”
condition.
dead
11. Indicator will search “DEAD weight” during 5sec, automatically.
After finding optimal “Zero” value, automatically move to next step.
Cal-1 0

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SI 4200
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12. At this step input Max. Output rate(mV) of load cell.
Cell0Ut
13. Input Load cell Output Rate(mV/V) (refer the load cell label)
Ex)Load cell output rate : 1.458 mV/V
o1.45800
※Caution : Due to some variation between “State output rate” and “Real Output rate” of load
cell, there might be some weight difference after finishing calibration.
If you want to make more precise weighing process, please measure real output rate of load cell and input the
measured value. Then the weight measurement will be more precise than before.
14. After inputing the value press key.
Calculated “Span value” will be displayed.
0.008723
15. Press key to save all calibration process and Off the
“CAL LCK S/W” and fasten the Calibration Bolt.
end
※Caution : To process “Simulation Calibration” process, All indicator has its’ own standard value of
2mV gap. So, if you replaced analogue board, you have to input standard value of 2mv gap.
And you can check the this 2mV gap value on F96. (Normally, the gap value is between 200,000 ~400,000)

Digital Weighing Indicator
SI 4200
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5-4. Unit Weight Calibration
“Unit Calibration” means make standard of sample weight to calculate No. of bulk quantity.
To make accuracy quantity count conversion, please load more than 10pcs sample at once.
The sample no, is increased, the quantity accuracy is also increased.
This “Unit Calibration” must be processed after “SPAN Calibration”.
※The Min. digit of “Unit Calibration” is 1/5 of division.
(EX. Division : 10kg, The min. digit of Unit Weight : 10kg * 1/5 = 2kg)
5-4-1. Unit Calibration Process
Before start “Unit Calibration Process”, please finish “Span Calibration”, first.
5-4-2. Unit Calibration
There are two steps to process “Unit Calibration”.
Step 1. Zero Adjustment of Weighing Scale
Before process “Unit Calibration”, press or , and make display Weight is “ZERO”.
※In case of using key to make “Display Zero”, the Accuracy can be less than using key.
※This Step is very important to make standard of “Unit Calibration”. So, if the Scale is unstable due to
vibration or other abnormal variation, please remove this external effect.