Sewhacnm SI 460C User manual

Digital Weighing Indicator
SI 460C
Instruction Manual

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SI 460C DIN SIZE WEIGHING CONTROLER
www.sewhacnm.co.kr
CONTENTS
1. Before Installation
-------------------------
3 Page
2. Introduction
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4 Page
3. Specification
-------------------------
5 Page
4. Installation
-------------------------
9 Page
4-1. External Dimension & Cutting Size
-------------------------
9 Page
4-2. Installation Components
-------------------------
9 Page
4-3. Load Cell Installation
-------------------------
10 Page
5. Set up
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11 Page
5-1. Set Up
-------------------------
11 Page
5-2. TEST Weight Calibration Mode
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13 Page
5-3. Simulating Calibration Mode
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17 Page
5-4. F-FUNCTION Setting
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22 Page
5-5 SET-POINT Setting
5-6. Test Mode
-------------------------
-------------------------
32 Page
42 Page
6. Interface
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47 Page
6-1. Serial Interface
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47 Page
6-2. Relay Output
-------------------------
59 Page
6-3. Analog Output Interface(4~20mA)
-------------------------
60 Page
6-4. Analog Output Interface(0~10V)
6-5. Serial Print
-------------------------
-------------------------
61 Page
62 Page
7. Error & Treatment
-------------------------
63Page
Warrantee Certificate
-------------------------
66Page

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SI 460C DIN SIZE WEIGHING CONTROLER
www.sewhacnm.co.kr
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 : SEWHACNM CO., LTD.
Website : http://www.sewhacnm.co.kr
Email : [e-mail]

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SI 460C DIN SIZE WEIGHING CONTROLER
www.sewhacnm.co.kr
2. INTRODUCTION
2-1. Introduction
Thank you for your choice of this SI 460C Industrial Digital Weighing Controller.
This SI 460C model is high-performance weighing controller.
SI 460C model has various kinds of “Weighing Modes”–with 4pcs Control Relay output.
And it has 2ports serial interface, and Analogue Output(0~10V or 4~20mA - Selectable).
Please review and learn this instruction Manual and enjoy your process efficiency with
“SI 460C”Digital Weighing Controller.
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.
2-3. Features
1. SI 460C model is the square DIN SIZE and compact enough, so it is easy to install.
2. Front panel is covered with Polycarbonate film, strong against dust and water.
3. There are standard installed with RS-422&RS-232C or RS-485&RS-232C.
4. The user can select the analog output , 4~20mA(default) / 0~10V.

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SI 460C DIN SIZE WEIGHING CONTROLER
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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
-3.0 mV/V to +3.0mV/V
Load cell Excitation
DC +5V
A/D Conversion Method
Sigma-Delta
Decimal Point
0, 0.0, 0.00, 0.000
Drift
Offset
10PPM/℃
Span
10PPM/℃
Linearity
0.001% of Full Scale
Analogue Sampling(sec)
Max 60times / sec
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
4pcs external input key addable
Communication
Serial Port1 (RS-422/485)
Data Transference
Command Mode
Serial Print
Serial Port2 (RS-232C)
Control Output
Analogue Output
0~10V / 4~20mA User selection
Control Relay Output Card
4pcs Control Relay
Power
DC : 24V,Power Consumption 12W
AC (Option) : 110~220V, Power Consumption 12W
Size
96mm(W)ⅹ96mm(H)ⅹ116.5mm(D)
Weight : 500g (DC Ver.)
700g (AC Ver.)

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SI 460C DIN SIZE WEIGHING CONTROLER
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3-2. Front Panel
3-2-1 Front Panel (Display / Key Pad)
3-2-1. Status 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.
OUT1
When “OUT1”(Relay) operates, Lamp is ON
OUT2
When “OUT2”(Relay) operates, Lamp is ON
OUT3
When “OUT3”(Relay) operates, Lamp is ON
OUT4
When “OUT4”(Relay) operates, Lamp is ON
3-2-2. Key Operation
1. Normal Mode : Make Weight value as Zero. (F07, F08 setting)
2. Calibration Mode : Cancel the value or move to previous step.
3. F-Function setting : Cancel
4. Set point setting : Cancel
5.Test Mode 1 : Cancel or move to previous step
6.Test Mode 2 : Cancel or move to previous step
7.Set up Mode : Cancel
1.Normal Mode : Set the TARE Function .(F09 setting)
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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SI 460C DIN SIZE WEIGHING CONTROLER
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4. Set point setting : Set SP-1 value
5.Test Mode 1 : Analog value check mode
6.Test Mode 2 : Relay out check mode
7.Set up Mode : Enter F-FUNCTION Mode
1. To set the “HOLD”Function (refer F10) [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. Set point setting : Set SP-2 value
5.Test Mode 1 : Analog Variation value check mode
6.Test Mode 2 : Check relay output
7.Set up Mode : Enter Calibration Mode.
※Under HOLD setting first digit as “H”
1. Normal Mode : Print out (refer F38, F32)
2.Calibration Mode , F-Function setting :Increase set value
3. Set point setting : Set SP3 value
4.Test Mode 1 : Key/Digital Input check mode
5.Test Mode 2 : Standard Serial I/F check mode
6. Set up Mode : Enter Test Mode.
※If the printer is installed, under “F01-01 setting, when you press this key the current
valued is increased. And the current weight is saved and print out, altogether. (Refer to
CH.5-4)
1.Normal Mode : Press this key 4times, within 2secs, enter to “SET-UP”mode.
2.Calibration Mode : Enter
3.F-Function setting : Save the value go to next step
4. Set point setting : Set SP4 value
5.Test Mode 1 : Go back to Test mode 2
6.Test Mode 2 : Extended Serial I/F check mode
7.Set up Mode : Set point setting Mode.
●Setup Mode :It is a mode can SET UP the calibration, Function of SI 460C. (refer to CH5. SET UP)
3-2-3. 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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SI 460C DIN SIZE WEIGHING CONTROLER
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3-3 Rear Panel
1. Power DC IN: 24V (Power : 24V 1A recommended)
2. External Input terminal: Standard tow port (Refer to F-Function F14, F15, F16, F17 to select
desired function of each input terminal )
3. Serial Interface terminal : Port No.1, Bottom side
Communication Method
TX+ Terminal
TX- Terminal
RX+ Terminal
RX- Terminal
RS –422(Standard)
TXD+
TXD-
RXD+
RXD-
RS –485(Standard)
Not used
Not used
RXD+
RXD-
4. Load cell Input
EXC+
EXC-
SIG+
SIG-
SHIELD
5. External Input terminal: additional 2pcs digital inputs are on the top (refer to F16, F17)
Standard + Extended Digital Inputs are 4 pcs.
6. Relay Output terminal (Output Mode will be determined by F21-Weighing Modes)
RELAY 1
RELAY 2
RELAY 3
RELAY 4
RELAY COM
7. Analogue Output terminal (Option)
4~20mA (Factory Default)
(+)
(-)
0~10V (User Selectable)
(+)
(-)
8. Serial Interface terminal (Option port No,2 top side)
Communication
1(from left)
2
3
4
RS –232C
GND
GND
TXD
RXD
RS –422
TXD+
TXD-
RXD+
RXD-
RS –485
Not used
Not used
RXD+
RXD-
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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SI 460C DIN SIZE WEIGHING CONTROLER
www.sewhacnm.co.kr
4. INSTALLATION
4-1. External Dimension & Cutting Size
External Dimension (mm)
Cutting Size (mm)
4-2. Installation Components
SI 460A
User Manual
91
91
93
93
92
116.5
118
116.5
92

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SI 460C DIN SIZE WEIGHING CONTROLER
www.sewhacnm.co.kr
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.
■Installation The Load cells
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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SI 460C DIN SIZE WEIGHING CONTROLER
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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 (Pass is Word Not used)
Press key four times within 2sec
“SET UP”will be displayed, Mode activated
Start “SET UP”Mode (If Lock function activated–Refer F-function 95)
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, back to weighing display.
51460C
51460C
5et-Up
p-Uj
5et-Up
0.000

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SI 460C DIN SIZE WEIGHING CONTROLER
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If you set password by “F95”. “TEST”mode, you cannot start “SETUP”Mode without
password.
Please don’t forget the pass word.
After starting ”Calibration”mode, and “Test”mode, serial I/F will be closed.
After initialization (F77) the password is .
To Go Each Mode
F-FUNCTION Mode
key 4 times Pass word 
Test Mode1
Analog Value
key 4 times Pass word 
Analog
difference
key 4 times Pass word 
Key test
key 4 times Pass word 
Test Mode2
Relay Output
key 4 times Pass word  
Analog Output
key 4 times Pass word  
Standard
Serial I/F
key 4 times Pass word  
Extended
Serial I/F
key 4 times Pass word  
Set
Value
Set Target
key 4 times Pass word 
Set Free Fall
key 4 times Pass word 
Entering means ESC/UPPER step, Entering means SAVE/NEXT Step.

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SI 460C DIN SIZE WEIGHING CONTROLER
www.sewhacnm.co.kr
■Adjusting “ZERO”Balance (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 Calibrate 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
5-2 Test Weight Calibration Mode (Using test weight)
5-2-1. Start Test Weight Calibration Mode
Remove “CAL-BOLT” on the Front panel, .
and press “CAL - LOCK S/W” inside.
When “CALIBR”displays, press key,
Then Test Weight Calibration Mode starts.
※If you set password through “F95”, you have to input the pass word.
Cal1br

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SI 460C DIN SIZE WEIGHING CONTROLER
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5-2-2. Setting “Capacity of weighing Scale”
After displaying “CAPA”, input max capacity with keys & Press key to save & move to next
step.
If you want that set Max capa is 1,000kg, then just input “1000”.
5-2-3. “Decimal Point”and “Digit / Division”Value
After “DIVI”displays, set Decimal point with key.
Whenever pressing , Decimal point will be changed.
And set Division values with key, Finally press key to save.
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) cannot be over than 1/20,000.
If this condition is not fulfilled, “err-1”will be displayed and move back to Capacity
setting mode.
Capa
1000
diui
0.1

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SI 460C DIN SIZE WEIGHING CONTROLER
www.sewhacnm.co.kr
5-2-4. Measure the “DEAD”Weight of Weighing Scale.
When “DEAD”displays, press key, then indicator will calculate Dead weight of scale part
automatically.
Indicator will search “DEAE weight”during 10~20
secs automatically to find the best condition.
※Over than 1/10,000 resolution setting,
To guarantee the preciseness, DEAD weight calculation (CAL00~CAL09) will be operated twice.
In this step, if there is some force or Vibration on scale part, these unstable conditions
will be continued, “ErrorA”will be displayed, and “DEAD value”will not be calculated.
Under this condition, please remove the cause of 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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SI 460C DIN SIZE WEIGHING CONTROLER
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If “UP”is displayed, please load “Test Weight”on the scale part and press key.
Calculate Span value during 10 ~20 secs,
automatically.
※Over than 1/10,000 resolution setting,
To guarantee the preciseness, Span calculation will be operated twice.
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

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SI 460C DIN SIZE WEIGHING CONTROLER
www.sewhacnm.co.kr
5-3. Simulation Calibration Mode(Calibrate 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
Remove “CAL-BOLT” on the Front panel, .
and press “CAL - LOCK S/W” inside.
“CALIbr”displays, press key.
If “S-CAL”displays, press key to start
Simulation Calibration Mode
Cal1br
5-Cal

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SI 460C DIN SIZE WEIGHING CONTROLER
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5-3-2. Setting “Capacity of Load Cell”
After “CAPA”displayed, Check Max. Capacity of Load cell.
(refer the load cell label, or Test Report)
Input the Max. Capacity of Load cell. And press key.
In case of plural piece of load cells are installed, Please make sum of each load cell’s capacity
and make setting with Max. Capacity.
EX) There are 4pcs of load cells, and each load cell’s Max. capa is1,000kg.
Then, total Max. Capacitywill be 4,000kg(1,000 x 4) and you have to input 4,000.
Capa
15

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SI 460C DIN SIZE WEIGHING CONTROLER
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5-3-3. Setting “Digit / Division”value
After “DIVI”is displayed select Decimal point with key.
Whenever pressing key , decimal point will be changed.
Please stop at the optimal position. And select Division optimal division with key.
Finally press key to save and move to next step.
5-3-4. Measure the “DEAD Weight”of Weighing Scale.
“dEAd”is displayed. Please press key with empty scale.
Then the indicator starts to measure and find optimal “Dead weight value of Scale”automatically.
0.1
diui
dead

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SI 460C DIN SIZE WEIGHING CONTROLER
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It takes 10sec or 20sec to get the best
situation.
Over than 1/10,000 resolution setting,
To guarantee the preciseness, dead weight calculation will be operated twice.
5-3-5. Input Max. Output ( Rated Output Voltage / mV)
Enter the output value load cell
Following fixed decimal point.
After “mV”displayed, input R.O value of Load cell.
(Refer the load cell label, or Test Report) . Press key to save and move to next step.
If you enter wrong value, there will display “BAD”, please go back to Setting “Capacity of Load
Cell”. After recheck the label of load cell and retry the process.
Cal10
bad
rnU
1.98700