Sewhacnm SI 480E User manual

Digital Weighing Indicator
SI 480E
Instruction Manual
2014. 06. 25

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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
3-1. Specification
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5 Page
3-2. Front Panel
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6 Page
3-3. Rear Panel
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8 Page
4. Installation
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9 Page
4-1. Dimension & Cutting Size
4-2. Installation Components
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-------------------------
9 Page
9 Page
4-3. Load Cell Installation
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10 Page
5. Set up
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11 Page
5-1. Set Up mode
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11 Page
5-2. TEST Weight Calibration Mode
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14 Page
5-3. Simulating Calibration Mode
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18 Page
5-4. F-FUNCTION Setting
5-5. Test Mode
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-------------------------
22 Page
34 Page
6. Interface
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37 Page
6-1. Serial Interface
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37 Page
6-2. Serial Print
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47 Page
7. Error & Treatment
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48 Page
7-1. Load Cell Error & Treatment
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48 Page
7-2. Calibration Error & Treatment
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49 Page
7-3. Indicator Error & Treatment
-------------------------
50 Page
Warrantee Certificate
-------------------------
51 Page

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1. BEFORE INSTALLATION
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.
Copy Rights
1. All Right and Authority for this Manual is belonged to SEWHA CNM CO., LTD.
2. Any kinds of copy or distribution without permission of SEWHA CNM CO., LTD. will be
prohibited.
3. This manual may be changed as the version is upgraded, without previous notice.
Inquiries
If you have any kinds of inquiries for this model, please contact your local agent or Head Office.
Head Office : SEWHA CNM CO., LTD.
Website : http://www.sewhacnm.co.kr
Email : [e-mail]

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2. INTRODUCTION
2-1. Introduction
Thank you for your choice of this SI480E Industrial Digital Weighing Indicator.
This SI480E model is high-performance weighing Indicator.
Please review and learn this instruction Manual and enjoy your process efficiency
with “SI 480E”Weighing Indicator.
2-2. Cautions
1. Don’t drop on the ground and 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
previous notice or permission.
7. Item’s performance will be up-dated continuously base on previous version’s performance.
8. If the equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
9. If the operation environment is dusty, regular cleaning might be needed.
2-3. Features
1. SI 480E model is the standard 1/8 DIN SIZE and compact enough, so it is easy to install.
2. It has wide range of DC Input.
3. Front panel is covered with Polycarbonate film, strong against dust and water.
4. RS-422/485 serial port standard installed.

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3. SPECIFICATION
3-1 Specification
Content
Specification
Performance
External Resolution
1/20,000
Internal Resolution
1/2,097,152 (±1,048,576)
Input Sensitivity
Min. 0.1µV/V
Max Signal Input Voltage
3.0mV/V
Load cell Excitation
DC +5V
A/D Conversion Method
Sigma-Delta
Decimal Point
0, 0.0, 0.00, 0.000
Drift
10PPM/℃
10PPM/℃
10PPM/℃
10PPM/℃
Linearity
0.001% of Full Scale
Analogue Sampling(sec)
60times / sec(MAX)
Environment
Operating Temperature Range
-10℃ ~ +40℃ [14℉ ~ 104℉]
Operation Humidity Range
40% ~ 85% RH, Non-condensing
Function
Calibration Mode
Test Weight Calibration Mode
Simulation Calibration Mode
Display
6 digit, 15mm(0.6inch)
Red Color FND
Key Pad
5EA Standard Key
Additional Digital Input
2pcs addable
Communication
Serial Interface(RS-422/485)
Data Transference, Command Mode
Serial Print, MODBUS(RTU)
Power
Input Power DC 24VPower Consumption MAX 8W
Size
96mm(W)ⅹ48mm(H)ⅹ135mm(D) Including Connector
Weight : 300g

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3-2. Front Panel
3-2-1 Front Panel (Display / Key Pad)
3-2-2. State Lamp
STEADY
When the weight is “STEADY”, Lamp is ON.
ZERO
When the current weight is ”ZERO”, Lamp is ON.
TARE
“TARE”function is set, Lamp is ON.
HOLD
“HOLD”function is set, Lamp is ON.
TxD
When the Indicator transmits Serial communication data (Print data),
Lamp is ON.
RxD
When the Indicator receives Serial communication data, Lamp is ON.
3-2-3. Key Operation
1. Normal Mode : Make Weight value as Zero.
2. Calibration Mode : Cancel the value or move to previous step.
3. F-Function setting : Cancel
4. Set point setting : Cancel
1.Normal Mode : Set the TARE Function
(1st input : “TARE”, 2nd input : “TARE Reset”)
(When “HOLD”or weight value is ZERO, then this key doesn’t work.)
2.Calibration Mode : Move to left
3.F-Function setting : Move to left

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1. To set the “HOLD”Function
(1st input : “HOLD”, 2nd input : “HOLD Reset”)
2.Calibration Mode , F-Function setting : Move to right
3. Under “SETUP”Mode, Enter into the “Calibration”Mode.
4. Go into test mode 1
5.Under HOLD setting first digit as “H”
1. Normal Mode : Print out
2.Calibration Mode , F-Function setting :Increase set value
3. Go into test mode 2
4. Set up Mode : Enter Test Mode.
5. If F-102 set 0, 4, 5, 6 able to weight data to save
1.Normal Mode : Press this key 4times, within 2secs, enter to “SET-UP”mode.
2.Hidden Mode : on pressing this key by 4 second enter to “Hidden”mode.
2.Calibration Mode : Enter
3.F-Function setting : Save the value go to next step
●Setup Mode :It is a mode can SET UP the calibration, Function of SI480E .(refer to CH5. SET
UP)
3-2-4. Hot key (with F key)
Continuous “TARE”setting
(From the second TARE setting, use this key)
If the Printer is installed,
You can print out the “Grand-total data”.
(GRAND-total data can be checked though Print output).
Max accumulated weighing count: 999,999times
Over 999,999times return to “0” time
Max accumulated weight display: 999999999 (g, kg, ton)
Over 999,999,999 (g, kg, ton) return to “0” (g, kg, ton)

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3-3 Rear Panel
1.POWER 2.INPUT 3. SERIAL I/F 4.LOAD CELL
1. Power DC IN: 24V (Power: 24V 1A recommended)
2. External Input terminal: Bottom side 2 port
(Refer to F-233, 234 to select desired function of each input terminal)
3. Serial Interface terminal: Stand serial port is RS485
Communication Method
TX+
Terminal
TX-
Terminal
RX+
Terminal
RX-
Terminal
RS –422(Standard)
TX+
TX-
RX+
RX-
RS –485(Standard)
Not used
Not used
RTX +
RTX-
RS –232(Oder spec)
GND
Not used
TX
RX
4. Load cell Input
EXC+
EXC-
SIG+
SIG-
SHIELD
Please check the Comm. and other specification in the label, attached on the cover
plate first, and make connection according to that information.

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4. INSTALLATION
4-1. External Dimension & Cutting Size
External Dimension (unit: mm)
Cutting Size (unit : mm)
4-2. Installation Components
SI480E
Connector (3EA)
3P, 5P, 7P
Pin terminal(15EA)
User Manual
91
118
48
96
44
116
2
45
93
51480e

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4-3 Load cell Installation
Load Cell Wire Connection (In case of SEWHACNM’s Load cell)
It depends on the manufacturer of load cell, please check the specification.
※Load cell wire color can be changed without prior notice.
Under set up the Load cell, if EXC+ and EXC- have a short circuit,
It may cause damage in the indicator.(specially analogue board)
If you connect other wires to Load cell terminal wrongly, it may cause
damage in the analogue board.
Before connecting the load cell cable you have to power off and be sure to
connect the cable to the terminal correctly.
Do not weld near the load cells , Indicators or other devices.
Load Cell Installation
1. You can connect Max 8pcs of same capacity Load cells at once. (350 Ω)
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.
-----Sewhacnm Co.,ltd. Load cell & wire color----
-

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5. SET-UP
5-1. Set up
This is the Menu which can set the all of the functions.
There may be some display differences between real and on the manual.
5-1-1. Start “SET UP”Mode (Password is not used)
Press key four times within 2sec
When “SET UP”is displayed, SETUP Mode is
activated
5-1-2. Start “SET UP”Mode (Password Use –Refer Hidden Option HF07)
Press key four times within 2sec
If “P-W”displays, input 4 characters password.
If Password is right, “SETUP”Mode starts.
If Password is wrong, it is back to weighing display.
If you set password by “HF07”, “TEST”mode, you cannot start “SETUP”Mode
without password. Please don’t forget the pass word.
51480e
5et-Up
51480e
p-Uj
5et-Up
0.000

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To Go Each Mode
Calibration
Weight
Calibration
key during 4 secondsPass word
Simulation
Calibration
key during 4 seconds Pass word
F-FUNCTION Mode
key 4 times
Test Mode1
Analog Value
key 4 times 
Display
key 4 times 
Key test
key 4 times 
Test Mode2
Serial I/F
key 4 times 
Standard
Serial I/F
key 4 times 
Entering means ESC/UPPER step, Entering means SAVE/NEXT Step.

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■Adjusting “ZERO”Balance (Calibration)
Adjust weight balance between “Real weight” on the load cell) and “Displayed
weight of Indicator”. When you replace LOAD CELL or Indicator, you have to
Calibration process once again.
(When you start calibration mode, TARE, HOLD & PRINT will be reset.)
Before processing calibration, please warm up the indicator during 15
min to guarantee more preciseness.
Calibration Key
CANCLE/BACK
Move to left
Move to right
Increase set value
Save and Move
to next step

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5-2 Test Weight Calibration Mode (Using test weight)
5-2-1. Start Test Weight Calibration Mode
On pressing key for 4 seconds
On the screen “----“, input PASSWORD
press key
On the screen “SET.CAL”press key
On the screen “CALIBR“, press key
Go into CALIBRATION MODE
5-2-2. Setting “Capacity of weighing Scale”
When “CAPA”is showed, input max capacity with keys & Press key to save the data &
move to next step.
If you want that set Max capacity is 1,000kg, then just input “1000”.
Capa
1000

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5-2-3. “Decimal Point”and “Digit / Division”Value
After “DIVI”is displayed, set Decimal point with key.
Whenever you press key, the decimal point will be changed.
And set Division value with key, finally press key to save the data.
Max Decimal point will be 0.001, and digit can be selectable among
1, 2, 5, 10, 20, 50.
Digit and Decimal point must be fulfill the below condition.
(Division value /Max capacity value) can not over 1/20,000.
If the division is so small compare with max capacity,
Error message “Err 01“ will be displayed and move back to
“CAPACITY”step again.
diui
0.1

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5-2-4. Measure the “DEAD”Weight of Weighing Scale.
When “DEAD”is displayed, press key, then indicator will calculate Dead weight of scale
part automatically.
Indicator will search “DEAD weight”during 10~20
seconds to find the best condition.
※To guarantee the preciseness, DEAD weight calculation (CAL00~CAL09) will be operated twice
when resolution (Division value /Max capacity value) is less than 1/10,000.
At this step, if there is some force or vibration on weighing scale, and unstable
conditions will be continued, “Err-A”will be display, and “DEAD value” will not
be calculated. Please remove all the force or vibration and process it again.
5-2-5. Input Test Weight value and Calculate SPAN value.
If “SPAN”is displayed, input “Test Weight”capacity and press key.
dead
Cal-00
5paN
1000.0

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When “UP” is displayed, load your test weight on the scale (weigh bridge) and press key.
Ex) Load Cell CAPA : 20kg, division 0.001
Calculate Span value during 10 ~20 second,
automatically.
※To guarantee the preciseness, SPAN calculation (CAL00~CAL09) will be operated twice when
resolution (Division value /Max capacity value) is less than 1/10,000.
After calculation, span value will be displayed
on the display. Then press key.
※This span value is not a weight value.
When “END”is displayed and calibration is
completed.
Up
Cal-10
0.33392
end
Up

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5-3. Simulation Calibration Mode(without Test weight)
With this “Simulation Calibration Mode”you can make simple calibration without any “TEST weight”
This calibration mode uses “Load cells’max capacity”and “Max Output Rate(mV)”, so the weight
adjustment degree might be less than “Test weight Calibration”.
The guaranteed resolution of this “Simulation Calibration”is 1/3,000.
5-3-1. Simulation Calibration Mode Start
On pressing key for 4 seconds
On the screen “----“, input PASSWORD
press key
On the screen “SET.CAL”press key
On the screen “CALIBR“, press key
Go into CALIBRATION MODE

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5-3-2. Setting “Capacity of Load Cell”
After “CAPA” is displayed, Check the max Capacity of your load cell.
(Refer the label on the load cell, or test report.)
Input the Max Capacity of Load cell. And press key.
In case of multiple pieces of load cells are installed, make sum of each load cell’s capacity
and make setting with max capacity.
Ex) If there are 4pcs of load cells, and each load cell’s Max capacity is 1,000kg.
Then, total Max Capacity will be 4,000kg (1,000 x 4) and you have to input 4,000.
5-3-3. Setting “Digit / Division”value
After “DIVI”is displayed, select Decimal point with key.
Whenever you press key, decimal point will be changed.
And select Division optimal division with key.
Finally press key to save and move to next step.
0.1
diui
Capa
15

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5-3-4. Measure the “DEAD Weight”of Weighing Scale.
When “DEAD”is displayed, press key with empty scale.
The indicator starts to measure and find optimal “Dead weight value of Scale”automatically.
It takes 10 or 20 second to get the best
situation.
※To guarantee the preciseness, DEAD weight calculation (CAL00~CAL09) will be operated twice
when resolution (Division value /Max capacity value) is less than 1/10,000.
5-3-5. Input Max Output (Rated Output Voltage / mV)
Input the output value load cell
Following fixed decimal point.
After “mV”is displayed, Check the Rated output value of Load cell.
(Refer to the load cell label, or Test Report). And Press key to save and move to next step.
dead
Cal10
1.98700
rnU