Sewha si 4500 User manual

Digital Weighing Indicator
Model : SI 4500
Operation Manual
Version 1.34 (2009. 06)
Sewhacnm Co.,Ltd.

DIGITAL WEIGHING INDICATOR
SI 4500
- 2 -
CONTENTS
1. Before Installation ---------------
3 page
2. Introduction ---------------
4 page
3. Specification
3-1. Analog Input & A/D Conversion
3-2. Digital Parts
3-3. General Specifications
3-4. Option Cards
3-5. Front Panel (Display & Key pad)
3-6. Rear Panel
3-7. Installation Components
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5 page
5 page
5 page
6 page
6 page
6 page
11 page
11 page
4. Installation
4-1. External Dimension & Cutting Size
4-2. Assembly
4-3. Load Cell Installation
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12 page
13 page
13 page
15 page
5. Set-up
5-1. Calibration
5-2. TEST Weight Calibration Mode
5-3. Simulation Calibration Mode(Without Test Weight)
5-4. Set-up
5-5 F-Function
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16 page
16 page
16 page
20 page
24 page
25 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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45 page
45 page
46 page
47 page
50 page
61 page
62 page
63 page
70 page
71 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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57page
57 page
58 page
59 page
60 page
Warrantee Certification ---------------
61 page

DIGITAL WEIGHING INDICATOR
SI 4500
- 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 : [e-mail]
Warning
Caution

DIGITAL WEIGHING INDICATOR
SI 4500
- 4 -
2. INTRODUCTION
2-1. Introduction
Thank you for purchase this “SI 4410” Industrial Digital Weighing Controller.
This “SI 4500” model is advanced model of “SI 3500”, with powerful communication performance.
With 2ports serial port interfaces and precise weighing control system, you can upgrade your weighing
process.
This “SI 4500” Weighing Controller is optimize for “Multiple Accumulating Mixture Batching Process”
with 50kinds different mixing Formulas.
And it has two different operating modes(Automatic / Manual) batching process.
Enjoy your process with “SI 4500” 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). Self diagnose function
3). External input terminal inside.(4pcs : can be connected with PLC or Sequence board)
4). 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”.
5). Data back-up function, when the sudden power off.
6). “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
7). Polycarbonate film panel, strong for dust and water.
8). Weight Unit selection Function added. (“g”, “kg”, “t” selectable – F40)
10). Variable options(Order in advance, Refer Chapter 6. Interface) – “RS-232C” Standard installed.
11). 2port Serial Interface available – various applications (monitoring, printing, and Command mode)
are available.
Cautions
!

DIGITAL WEIGHING INDICATOR
SI 4500
- 5 -
3. SPECIFICATION
3-1. Analog Input & A/D Conversion
Input Sensitivity 0.2
㎶ / Digit
Load Cell Excitation DC 10V ( - 5V ~ + 5V )
Max. Signal Input Voltage Max.32mV
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 × 4pcs
Min. Division ×1, ×2, ×5, ×10, ×20, ×50
Max. display value +999,950
Under Zero value "-" (Minus display)
Status lamp
Steady, Zero, Tare, STB,
Run, Print, Comm. " ▼" Condition display Lamp
kg, g, t /
FINAL, PRE1, Operating Red / Yellow-Green LED Display(3Ø)
K e y
Number, Function, CAL.
Lock Key Number Key, Function, CAL. Lock key (14pcs)

DIGITAL WEIGHING INDICATOR
SI 4500
- 6 -
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)
ｘ 105mm(H) ｘ 165mm(L)
Net Weight(kg) About 2.3kg
Gross Weight(kg) About 3.0kg
※ AC 110V, Power supply is an optional before ex-factory.
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)
※ 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)
Weight Display
Calibration Lock S/W
Weight Unit LED Formula No. Free Fall Set value
Status Lamp
Function key
PRE 1 Set value
(weighing count)
FINAL Set value
(Total Weight)
Accumulated
Weight display

DIGITAL WEIGHING INDICATOR
SI 4500
- 7 -
3-5-1. Status Lamp (ANNUNCIATORS) : “▼” Lamp is “ON”.
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 RESET : +
Initialize Batch Process.
If the Batch process is not initialized, the process will not activated.
1. To START or STOP weighing process.
First input, SI 4500 Controller Starts weighing process, and Second input, SI 4500
Controller stops weighing process.
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.)
STB Batch “Stand by” display.
Run Weighing Batch is started, “▼” Lamp is turn 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).

DIGITAL WEIGHING INDICATOR
SI 4500
- 8 -
Can set Max. 50kinds different “Mixing Formulas” with this key.
And call saved mixing formula, too.
Formula save : Choose certain P/N and each Bin’s set vale.
Formula call : P/N + Number key + Enter
Set each material’s set value with this key.
※ Each Bin has its own “FINAL”, “PRE 1”, “Free Fall” set values.
FINAL value set : Final + Number key + Enter
PRE 1 value set : Pre1 + Number key + Enter
Set each Bin’s Final set value with this key.
FINAL value set : FINAL + Number key + Enter
FINAL value Check : Press FINAL 

Display during 5sec
Set each Bin’s PRE 1 set value with this key.
PRE1 value set : PRE1 + Number key + Enter
PRE1 value Check : Press PRE1 

Display during 5sec
Set each Bin’s Free Fall value and control FINISH relay in advance.
Free Fall value setting : Free Fall + Number key + Enter
Free Fall value check : Press Free fall 

Display during 5sec
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.

DIGITAL WEIGHING INDICATOR
SI 4500
- 9 -
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.
※ Function Keys (Combined Key functions)
Function Key Contents
Print all P/Ns’ accumulated weighing count and weight.
(Grand-Total Print)
Print current P/N’s accumulated weighing count and weight.
(Sub-Total Print)
Set Total No. of BIN, which will be used for current Batch process.
Max. 16kinds Bins will be settable or single process.
Not using BIN : Must set “FINAL” value as “0”.
Using BIN : Must set “FINAL”, “PRE1”, “Free Fall”.
Set “Over N.G”(Error relay) range.
(If you set larger value than FINAL value, the setting is not saved)
Set “Under N.G”(Error relay) range.
(If you set larger value than FINAL value, the setting is not saved)

DIGITAL WEIGHING INDICATOR
SI 4500
- 10 -
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).
Remove TARE.
※ 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.
3-6. Rear Panel
AC Power Input
Option Card(1) Option Card(2)
Load Cell Input
Serial Port(Standard)External Input
Relay Output Terminal

DIGITAL WEIGHING INDICATOR
SI 4500
- 11 -
Warning
!
① POWER 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 supp ※
※※
※ ly is AC 220V(Fixed when ex-warehouse), if you want to have AC
110V, please inform in advance.
Option Card 1 ②
③ Option Card 2
※ Option Card Connector installed for Optional Interface or Output.
(Printer I/F, Analog out, RS-422/485, or RS-232C(two port)
L ④ OAD CELL Connector (N16-05)
SERIAL I/F ⑤
“RS-232C” or “CURRENT LOOP”(9Pin, D-Type Female) are built-in as standard
External Input : ⑥ External control input for wired remote control.
Refer to F-Function F11 to select desired function mode.
Input signal …………………………… Optical-Isolator
3-7. Installation Components
Power Cable
Communication Connector
(D-SUB 9P)
Load-cell Cable

DIGITAL WEIGHING INDICATOR
SI 4500
- 12 -
4. INSTALLATION
4-1. External Dimension & Cutting Size
(External Dimension) (unit : mm)
(Cutting Size) (unit : mm)
94
188
165
105
200 162.0
92
186

DIGITAL WEIGHING INDICATOR
SI 4500
- 13 -
4-2. Load Cell Installation
4-2-1. Load Cell Connector Specification
4-2-2. 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

DIGITAL WEIGHING INDICATOR
SI 4500
- 14 -
4-2-3. Load Cell Wire Connection
1). Please connect Indicator’s connector and Load cell cable basis on each color.
2). It is possible to connect Max. 8pcs same capacity load cells with parallel. (350Ω)
3). LOAD CELL Connector Standard : N16 - 05
4). The load cell cable color can be different from each manufacturer, please refer following data
sheet.
5). Load Cell Wire Color Chart (Sorted by Manufacturer)
Manufacturers EXC+ EXC- SIG+ SIG- SHIELD
Sewha CNM Red White Green Blue Black
Bongshin, CAS ,TMI ,AND Red White Green Blue Yellow(Shield)
Daesung Red Black White Green
Shield
Power MNC Red White Green Black Shield
Disocell Red Blue Green White
Black
Dacell Red White Green Blue Shield
BLH Green Black White Red Yellow
INTERFACE Red Black Green White
Shield
KYOWA Red Black Green White
Shield
P.T Red Black Green White
Shield
SHOWA Red Blue White Black Shield
SHINKOH Red Black Green White
Shield
TML Red Black White Green
Shield
TEAC Red Blue White Black Yellow
HUNTLEIGH Green Black Red White
Shield
※
※※
※ Each Wire’s color specification can be changed without prior notice.

DIGITAL WEIGHING INDICATOR
SI 4500
- 15 -
4-2-4. Formula to plan the precise weighing system
This “SI 5010” weighing controller’s Max. input sensitivity is 0.2 ㎶
㎶㎶
㎶ / 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
E B D ⅹ ⅹ A : Load cell capacity(kg)
B : Load cell Voltage(mV)
D : Digit
E : affirmation Voltage of Load cell
N : Number of Load cell
0.2 ㎶ ≤A
Plural Load cells use
E B D ⅹ ⅹ
0.2 ㎶ ≤A N
ⅹ
Example1.)
Number of Load cell : 1pcs
Load cell capacity : 500kg
Load cell Voltage : 2mV/V
Digit : 0.05kg
Affirmation Voltage of Load cell : 5,000mV
Max. Capacity of Weighing System : 300kg
Then, estimation result for this weighing system with formula,
5000 2 0.05 ⅹ ⅹ
= 1 ≥0.2 ㎶ The calculated value is larger than 0.2
㎶ , so this
system has no problem.
500
Example2.)
Number of Load cell : 4pcs
Load cell capacity : 500kg
Load cell Voltage : 2mV/V
Digit : 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,
5000 ⅹ 2 ⅹ 0.10
= 0.5 ≥0.2 ㎶ The calculated value is larger than 0.2
㎶ , so
this system has no problem.
500 4 ⅹ
Accordin ※
※※
※ g to “Resolution” or “Capacity”, it might not be calibrated like calculation.
Caution
!

DIGITAL WEIGHING INDICATOR
SI 4500
- 16 -
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)
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.
Then, you can enter the Calibration Mode with and start calibration mode with
pressing key.
Remove the CAL.Bolt.
Push the CAL. S/W
Check the “SET-CAL.
Massage on display.
※
※※
※ For the save the each step, press key, for the cancel or move back, press key.
Step No.1 - Setting “Capacity of weighing Scale”.
Set Max. Capacity of Load cell Press “Enter” and move the next step.
Under this step, input Max. Capacity of you weighing scale.
Input Max. capacity of your weighing scale with No. keys.
The Max. capacity can not be exceed Max. capacity of load cell.
After finishing input, press key and save and move to next step.
Step No.2 - Setting “Decimal Point”
SeT
-
CAL

DIGITAL WEIGHING INDICATOR
SI 4500
- 17 -
Decimal point position select with “0” key Press “Enter” and move the next step.
Under this step, define the optimal position or Decimal point.
Whenever pressing key, Decimal point will be changed, like XXX. – XX.X – X.XX - .XXX
The Max. Decimal point will be third place under Zero.
On the Optimal position, stop pressing key and press key to save and move to next
step.
Step No.3 - Setting “Digit / Division” value.
Set Digit(Division) with “0”
key.
Press “Enter” and move the next
step.
Press “Enter” and move the
next step.
Press “ Enter ” and move t e next step.
Under this step, define the optimal Digit/Division value of weighing measurement.
Whenever pressing key, the Digit/Division value will be changed, like 01-02-05-10-50.
On the optimal Digit/Division value, stop pressing key and press key to save and
move to next step.
Caution ※
※※
※
(Max. capacity value / division value) can not be over 20,000.(as Indicator resolution is 1/200,00).
If the value is over 20,000, Error message “ Err 01 “ will be displayed and move back “CAPA” mode
again.

DIGITAL WEIGHING INDICATOR
SI 4500
- 18 -
Step No.4 - Measure the “DEAD Weight of Weighing Scale.
Memorize “DEAD weight” of Weighing Machine
with “Enter”.
Indicator will search “DEAD weight” during
5sec, automatically.
Under this step, measure the “DEAD Weight of Weighing Scale”.
This “DEAD Weight” is very important to make “ZERO” value of weighing scale, so please make sure that
the weighing scale is empty and free from other external variations.
When you press key, the indicator starts to find “Zero” condition of scale during the 5sec.
After finding optimal “Zero” value, automatically move to next step.
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.
Step No.5 - Input Test Weight value and Calculate SPAN value.
Input “Test weight” capacity
Input “Test weight” capacity and
press “Enter”.
Load “Test weight” on
weighing part.
Process Span Calculation with
press “Enter”.
Indicator will calculate span
value during 5sec, automatically.
After calculation, display span
value on the display
Under this step, input prepared “Test Weight’s value” and calculate “SPAN Value”.
The “Test Weight’s value” must be at least 10% max. capacity of weighing scale.

DIGITAL WEIGHING INDICATOR
SI 4500
- 19 -
Input prepared Test weight value and press key, then message will be
displayed.
Then load Test weight on weighing scale and press key.
Then, indicator will make adjustment for “Standard weight value” and calculate “Span value”.
※
※※
※ “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.
Caution ※
※※
※
In case of Max. load cell capacity value /Division value is under 5,000, please prepare Standard weight at
least 10% of Max. load cell capacity value or max. display capacity value and set.
In case of Max. load cell capacity value / Division value is over 5,000, please prepare Standard weight at
least 20% of Max. load cell capacity value or Max. display capacity value and set.
This will be make more accuracy calibration setting.
- If you set test weight value over max. load cell capacity, Error Message “Err 04” will be displayed.
- If you set test weight value under 10% of max. load cell capacity value, Error Message “Err 05” will be
displayed.
Step No.6 – End calibration process / “CAL” switch OFF
Now, the Test weight calibration is done.
Calibration process completed. Push Calibration Lock S/W and tight Cal. Bol.
Press key to save all calibration process. Now, Off the “CAL LCK S/W” and fasten the
Calibration Bolt.
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. (value is between 200,00 ~400,000)
UP

DIGITAL WEIGHING INDICATOR
SI 4500
- 20 -
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 and press key to enter
“Simulation Calibration Mode” with and start calibration mode with pressing
key.
Remove the CAL.Bolt.
Push the CAL. S/W
Press NO.1 key to enter
the “CELL Calibration” mode
Check the “CELL-CAL”. Massage
on display.
※
※※
※ For the save the each step, press key, for the cancel or move back, press key.
Step No.1 - Setting “Capacity of Load cell”.
Enter the Capacity input mode
Check Max. Capacity of Load cell
(Refer the Load cell Lable)
Input the Max. Capacity of Load
cell(same value of Label
Under this step, input Max. Capacity of Load cell. (Not weighing Scale)
The Max. Capacity of load cell is stated on “Test report” or “Label”.
Please input this max. capacity of load cell value with No. keys.
CELCAL
SeT
-
CAL