Check weigher

CW-1.2K
User’s manual
(Applicable for MCGS+C01 version)

531701010029 Ver A1
 Contents
1. Summary ....................................................................................... 1

1.1 Product Features ........................................................................... 1

1.1.1 Mechanical part ................................................................. 2

1.1.2 Electrical part .................................................................... 2

1.2 Usage Notice ............................................................................... 2

1.2.1 Precautions ....................................................................... 2

2. Product installation ................................................................... 3

2.1 Overall appearance ....................................................................... 3

2.2 Mechanical installation .................................................................. 5

2.3 Electrical installation ..................................................................... 5

2.4 Electrical interface ........................................................................ 7

2.5 Power supply power .................................................................... 11

3. Operation .................................................................................... 12

3.1 Operation summary ................................................................ 12

3.2 Limit removal ........................................................................ 12

3.3 Basic operation ...................................................................... 13

3.3.1 Power-on operation ......................................................... 13

3.3.2 Zero clear operation ........................................................ 14

3.3.3 Start up operation ........................................................... 14

3.3.4 Stop operation................................................................. 15

 3.3.5 Power off operation ......................................................... 15

3.4 User login .............................................................................. 15

3.5 Product selection with New ................................................... 16

3.5.1 Select product parameters ............................................... 16

3.5.2 New product parameters .................................................. 16

3.5.3 Modify product parameters .............................................. 20

3.5.4 Delete product parameters ............................................... 20

3.6 Calibration scale .................................................................... 20

3.6.1 The weight calibration scale ............................................. 21

3.6.2 Dynamic calibration of scale ............................................. 22

4. Data viewing ............................................................................ 25

4.1 Check the result data ................................................................... 25

4.2 Statistics ................................................................................... 26

4.3 Alarm information ...................................................................... 26

4.4 Statistical graph .......................................................................... 27

5. Quantity of switches ............................................................... 28

5.1 I/O I/O testing ............................................................................ 28

6. Working parameters ................................................................ 33

6.1 Working parameter Settings .......................................................... 33

7. Communication ......................................................................... 38

7.1 Communication parameters .......................................................... 38

 7.1.1 Serial port communication ................................................ 40

7.1.2 Network port communication............................................ 40

7.1.3 MAC address ................................................................... 41

7.2 The Modbus register communication address is defined ..................... 41

7.3 Print content ............................................................................ 47

7.4 Set the parameters of the driver ................................................ 49

8. Program upgrade ..................................................................... 50

9. Size ............................................................................................ 51

9.1 Outline size drawing (unit: mm) .................................................... 52

10. Equipment repair and maintenance ...................................... 54

10.1 Maintenance of motors.............................................................. 54

10.1.1 Routine maintenance ....................................................... 54

10.1.2 Regular maintenance ....................................................... 54

10.1.3 Precautions ..................................................................... 54

10.2 Check the failure cause and treatment method of weight scale .... 54

10.2.1 No display on the touch screen......................................... 54

10.2.2 Data pulsation large, abnormal fluctuation ........................ 54

10.2.3 The display is always zero ................................................ 55

10.2.4 Abnormal data display ..................................................... 55

10.2.5 Busy alarm ...................................................................... 55

10.2.6 Packaging error ............................................................... 55

10.2.7 Continuous nonconformity alarm ...................................... 56

10.2.8 Excess plugging time ....................................................... 56

10.2.9 Below the minimum sampling time ................................... 56

10.2.10 Super maximum sampling time ........................................ 56

10.2.11 Overload motor load limit ................................................ 56

10.2.12 Automatic zeroing failed .................................................. 56

 Shenzhen General Measure Technology Co., Ltd.All rights reserved.
Without the permission of Shenzhen Geman Technology Co., LTD.,
no unit or individual may copy, disseminate, transcribe or translate into
other language versions in any form or by any means.
Due to the continuous improvement and update of our products, we
reserve the right to modify this manual at any time without prior notice.For
this purpose, please visit our website frequently for timely information.
The company's Web address http://www.gmweighing.com
 CW-1.2K user’s manual

1. Summary
CW-1.2K standard weighing scale is a high speed, high precision and small range
industrial automatic weighing scale developed by our company to meet the changing
technological update.

The full touch screen makes the CW-1.2K weighing scale easy to operate, external
expansion of IO input and output and external serial port communication to achieve multi-
point control, monitoring and remote control of the product.

1.1 Product Features

Product parameters;

Model number CW-1.2K

Power Supply AC220V±10%, 50/60Hz, 350W

Weighing range 100 to 1200g

Accuracy of weight Plus or minus 0.7 g

inspection

Weight checking speed 200 pieces/min

Size of object to be Length: 50~300mm Width: 20~220mm Height:

measured 10~220mm

Conveyor belt speed 5 to 50 m/min

Belt size 400mm*250mm

Center distance of drum 400mm

shaft

Countertop height 750 (±50mm) (customizable)

Operating temperature 0 to 40º

C

Maximum humidity 90% R.H non-dew forming

Ultimate load The instantaneous ultimate load shall not exceed

2.4kg

Note;Scale stands are strictly prohibited from being used over the range.

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1.1.1 Mechanical part

1．Electric control box is small and movable, easy to install and operate on site.
2．The servo driver is used as the motor driving device to ensure the speed stability
and adjustability in the process of weight checking.
3．Double photoelectric mode more accurately determine the object up and down the
weighing platform, improve the accuracy and efficiency of weight detection.
4．The height adjustment range of the weighing table is larger, which is convenient for
customers to choose and use.
5．The mechanical modular design makes transportation and maintenance more
convenient, and the application adaptability stronger.
1.1.2 Electrical part
1.Simple wiring, external only need to access the power cord;The internal use of different
specifications pin plug terminal block, wiring is convenient and will not make mistakes.
2.Touch screen operation interface optimization, product parameter setting is simple and
the main interface content is richer.
3.The three-color indicator shows qualified (green), out-of-tolerance (red),
undertolerance (yellow), and the working state of the inspection weight is clear at a
glance.Buzzer user can define the alarm mode.
4.The new algorithm is adopted in the process of weight inspection, and the high
precision can be guaranteed in the process of high-speed weighing.
5.Optimize user login and logout function, without tedious operation and effectively
prevent others from misoperation.
1.2 Usage Notice
1.2.1 Precautions
1.Do not perform mechanical or electrical maintenance while live, do not place tools on
the scale, and do not perform welding operations on the scale.
2.The installation site must ensure the ground level, after installation through the
foundation adjustment, ensure that the weighing table level, tilt does not exceed 0.5
degrees, away from the vibration source.
3.Make sure the equipment is safely grounded and there is no strong electricity or
magnetic field interference nearby.
4.Do a good job of fire prevention, avoid direct sunlight to check the weighing table and
relatively strong air flow (outdoor air, fan and air conditioning outlet is directly against
the weighing table).
5.Should avoid squeezing, stepping on the scale platform, handling should first fixed
scale, installed sensor limit to prevent damage to the sensor, prohibit the direct handling
of the scale platform to move.

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2. Product installation
2.1 Overall appearance
The product appearance is shown in Figure 2 -1 below.

Overall appearance of Low box version

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Overall appearance of High box version

Serial Name Introduction

number

A more intuitive display of the test results, so

1 Indicator light that the distance can also see the results of the
state.

The conveying end of the weighing platform on

2 Conveyor belt
the object

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Electric Control the weight inspection process and

3
control panel connect external devices

More intuitive display of the weight inspection

4 indicator light results, allowing the status of the results to be
seen from a distance.

5 touch screen View display data and set product parameters

Emergency
6 Emergency stop
stop button

Photoelectric Judge the weight table of the object up and

7
switch down

Weighing
8 Weighing objects
platform

Remove the Unqualified products will be eliminated at this

9
end belt location

2.2 Mechanical installation

Place the weighing scale at the installation place and remove the sensor protection
device;Adjust the levelness of the weighing scale, and the inclination shall not exceed 0.5
degree;Fix the footing of the weighing scale, the stainless steel footing contacts the ground
smoothly, and lock the screws of the footing to ensure the stability of the weighing scale.

Adjust the distance between the check weighing platform and the front and rear end
conveying mechanism is 9 ~ 11mm, and the check weighing platform shall not be in
contact with other equipment.If the front and back end conveying mechanism is not equal
to the height, it is necessary to add the oblique conveying mechanism on one side, and add
the horizontal conveying mechanism connection on the side of the oblique mechanism (to
leave a gap) to check the weight scale platform, to ensure that the check weight scale
platform level and the height of the front and back end conveying mechanism.

The electric control box can be arbitrarily installed on the left and right sides of the
weighing scale to facilitate the operation of the production process.

2.3 Electrical installation

The power supply is inserted into the three-hole socket with ground or connected to
the power supply equipment such as the electric gas cabinet according to the line mark.

1． Any wiring and disconnecting operation can only be carried out after power off.
After the operation is completed, check before power on.
2.The serial port is fixed to RS485 communication, where the 485(A) pair should be
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 CW-1.2K user’s manual

connected to 485(A) or 485(+), and the 485(B) pair should be connected to 485(B) or
485(-).
3.The switching quantity input point is valid at low level (DC0V) and does not allow
access to high voltage or alternating current.
4.Switching quantity output point access relay coil for intermediate control, so the other
end of the relay can access DC or AC power supply switching quantity.

Figure 2-2 Control panel of weighing scale

Serial Function
number

1 Touch screen communication jack

2 External custom outlet OUT1-OUT4

3 External custom output relay K1-K8

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 CW-1.2K user’s manual

4 Detect the photoelectric sensor wiring terminals

5 Alarm light wiring terminals

6 Custom input ports 1-6 externally

7 Sensor terminal

8 External RS-485 communication jack

9 External TCP/IP communication network port

10 Inverter communication jack

11 External USB data interface

12 24V power terminal

13 Reset key

14 Communication status indicator

15 Output relay status indicator light

2.4 Electrical interface

Photoelectric sensor (already wired at factory) :

E24V: photoelectric sensor DC24V+.

E0V: photoelectric sensor DC24V-.

E1: Signal input of photoelectric sensor for loading of weighing scale.

E2: Check the output photoelectric sensor signal input of the weight balance.

Alarm light (has been connected when leaving the factory) :

L24V: Alarm light DC24V+, maximum output power 2VA.

L1: Buzzer.

L2: When the detection result is out of tolerance, the low output is valid until the next
check begins.

L3: When the test result is qualified, the low output is valid until the next check begins.

L4: When the detection result is inferior, the low level output is effective until the next
check starts.

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Input (function can be customized, onsite connection according to actual

demand) :

DI1: running input. In the stopped state, the input is valid and the system enters the
running state.

DI2: Stop input. In the running state, the input is valid and the system enters the stop
state.

DI3: clear the alarm. When the system generates an alarm, change the input to be
effective and the alarm will be cleared.

DI4: out-of-tolerance elimination is completed. When the input is valid, the output of
out-of-tolerance elimination is invalid.

DI5: Undererror culling is complete, undererror culling output is invalid when this input
is valid.

DI6: continuous packet detection. This input signal is given by the photoelectric sensor
installed on the front conveyor line of the weighing scale and used in conjunction with the
busy stop output to control the start and stop of the front conveyor line of the weighing
scale. When there is an object being detected on the weighing platform and the signal is
effective, the busy stop output is effective.

DI0V: switching quantity power supply DC24V-.

DI24V: Switching quantity power supply DC24V+.

4 transistor outlet (function can be customized, on-site according to the

actual demand connection) :

DO1: No definition.

DO2: undefined.

DO3: undefined.

DO4: undefined.

DO0V: switching quantity supply power DC24V-.

DO24V: switch quantity power supply DC24V+.

DOCOM: switch quantity common end.

Sensor (already connected at factory) :

EX+ : Power positive, SN+ : induction positive, EX- : power negative, SN- : induction
negative, SG+ : signal positive, SG- : signal negative.

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Motor speed control communication interface (RS485) :

MT A: RS485 communication A.

MT B: RS485 Communications B.

MT G: RS485 Communication (GND).

8-way relay outlet (function can be customized, on-site connection according

to actual demand) :

K1: defined as operation. When the system is in operation state, the relay output is
closed, and K1A and K1B are switched on.Used to control the start and stop of frequency
converter.

K2: defined as stop. When the system is in the stopped state, the relay output closes
and K2A and K2B are switched on.This definition is the factory default setting and can be
modified according to the actual needs.

K3: defined as out of tolerance elimination, the product test result is out of tolerance,
and within the range of out of tolerance elimination duration, the relay output is
closed,K3A,K3B switched on.

K4: defined as undererror elimination, the product test result is undererror, and within
the range of undererror elimination duration, the output of the relay is closed,K4A,K4B on.

K5: defined as alarm. When the system gives an alarm, the output of the relay is
closed, and K5A and K5B are switched on.This definition is the factory default setting, and
can be modified according to the actual demand.

K6: defined as batch completion, after the completion of the product test batch, the
relay output is closed,K6A,K6B on.This definition is the factory default setting, and can be
modified according to the actual demand.

K7: defined as qualified indication, after the product test is qualified, the relay output
is closed,K7A,K7B on.This definition is the factory default setting, and can be modified
according to the actual demand.

K8: defined as unqualified excluded. When unqualified occurs in the test result, the
relay output is closed, and K8A and K8B are switched on.This definition is the factory
default setting, and can be modified according to the actual demand.

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Figure 2-3 Schematic diagram of inlet and outlet connections

Figure 2-4 Power supply and motor interface diagram

Figure 2-4 shows the power supply and motor interface diagram, defined as follows:

External power supply (already connected at factory) :

L: external AC power live wire.

G: external AC power ground cable.

N: neutral wire of external AC power supply.

Frequency converter output power supply (factory has been connected) :

U: Corresponding to the U terminal connected to the motor.

V: corresponds to the V terminal connected to the motor.

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 CW-1.2K user’s manual

W: corresponds to connect the motor W terminal.

Note: L, N and G are the external AC power supply, and U, V and W are the output
power supply of the inverter to power the motor. These two groups of power supplies have
been connected before delivery. If the frequency converter or motor needs to be
reconnected in the subsequent use and maintenance process, please be sure to connect
correctly according to the instructions, and remember not to connect it backwards,
otherwise it will cause damage to the frequency converter.

2.5 Power supply power

AC220V±10%, 50/60Hz, 350W.

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 CW-1.2K user’s manual

3. Operation
3.1 Operation summary
Boot

Technician
w
login
New product h
c
e
h
n
Set
o
parameters b
o
s e
Starting Data Power
e f
weight query off
o
C check Figure 3-1 Procedure
r
h
3.2 Limit removal e
o
Before use, it is necessary to first install the two limit shaft sleeves from the
transportation
o P
position to the working position. The position indicated by the arrow in
Figure 3-2 is the installation position of the
r limit shaft sleeve.
s
e o

t d

h u

e ct

p
r Sensor limit screw
o
d
u
c
ti
o 12
n

p
 CW-1.2K user’s manual

Figure 3-2 limit position

3.3 Basic operation

The main interface of weight inspection is used for daily production, which is used to
start and stop the weight inspection belt, enter the relevant parameter interface and
display the basic information of the tested product and the weight inspection result.

3.3.1 Power-on operation

Turn on the power and turn the knob switch to the "1" position and the boat type
switch to the O position.The touch screen on the electric cabinet displays the initialization
interface.At the top of the interface are USB insert mark, check scale model and time
display;The black display area is the name of the current production inspection product, the
weight display area, the weight unit display area and the weight check scale status display
area;In the middle is the current setting of weight checking speed, the current actual
weight checking speed and the display statistics of weight checking results;At the bottom
are the function keys of the operation of the weight check scale and the parameters related
to the weight check.

 Correct time parameters can effectively help users check the production inspection results,
relevant production parameter changes and alarm information, help to improve the
production pass rate and production speed and reduce production consumption.
 The weight display area of the weighing scale displays the real-time weight value in the
stopped state, and displays the weight test result in the running state until the next
object is effective.

Figure 3-4 Power-on initialization interface

Button and operation frame operation instructions (applicable to all operation interfaces of
the device) :
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 CW-1.2K user’s manual

1. Click this button to enter the interface of creating products and setting product
parameters.

2. Click this button to enter the parameter setting interface.

3. Click this button to enter the data interface to view the relevant check data.

4. Click this button to clear zero.

5. Click this button for user management operations.

6. Click this button to start and stop the device.

7. Click this type of action box to modify the value of this item.

8. Click the action box to modify the value of this item.

9. Click this type of action box to select Settings for this definition.

10. Click this type of action box to perform the corresponding operation.

11. Click this type of action box to open and close the corresponding function
Settings.

3.3.2 Zero clear operation

If the touch screen displays the real-time weight value of the weighing scale in the
stopped state is not zero (zero indicates the off state), click "Clear zero" to clear the
weighing platform, so that the real-time weight value is displayed as zero, and then the
zero indicates the on state.(It can be operated only in the stopped state).

If the weight check scale shows that the weight is unchanged, the stable identifier bit
is on; otherwise, the stable identifier bit is off (the stable identifier bit is only related to the
weight state, and has nothing to do with the operation of the weighing scale and the size
of the weight value).

3.3.3 Start up operation

Click "Start" on the touch screen to start the weight checking scale, and the weight
checking motor drives the weight checking belt to rotate. At this time, the operation label
on the touch screen is "Running", and the weight checking operation can start.

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3.3.4 Stop operation

Click "Stop" on the touch screen to stop the weight inspection belt and end the weight
inspection process. At this time, the operation label on the touch screen is "Stopped".

3.3.5 Power off operation

Turn knob switch to "0" position, touch screen off, disconnect power.The above
operations can only be performed when there is no weight product on the weighing scale.

3.4 User login

Under the touch screen initial interface, click "Product" or "Settings" to pop up the
password login box, select the user to enter the corresponding password and click
"Confirm" to log in.The initial passwords of the operator and administrator are written in
the user description.

Figure 3-5 Password input box

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3.5 Product selection with New

Figure 3-6 Product list

3.5.1 Select product parameters

Click "Product" under the main interface to enter the product list interface. First, click
the product to be checked in the product list, then click "Select Product" to select the
product, click "Exit" to go to the main interface and click "Start" to check the product.

 After the product is successfully selected, the current number will be displayed as the
number of the selected product in the upper right corner of the product list page.
 The new product number cannot be selected during the operation of the weight check
scale;By default, the product number selected by the weighing scale before exit (stop
operation or the weighing scale power off).
3.5.2 New product parameters
On the product list page, click "Add Product" to jump to the "Product Parameters"
interface to add a new product parameter. The new product number will be added to the
existing product in sequence. You do not need to select the product number.For details,
refer to "Operation Instructions on Buttons and Operation Frames" in Section 3.3.2.

★ The new product number cannot be added during the operation of the weight check
scale;The newly added product parameter values are the default initial values of the
system, which need to be set according to the actual product parameters and production
requirements.

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Figure 3-7 Product parameters screen Example

Description of product parameters:

Name Instructions

Product number Number of the product under inspection

Speed of weight The speed at which the current weight checking device detects
inspection the product

Product name Name of the product under inspection

Belt speed Weigh the speed at which the belt is running

Standard weight The standard weight of the product to be checked

Upper limit In the process of weight inspection, if the weighing value is

greater than the target value + the upper limit value, it will be
judged as out of tolerance

Lower limit value In the process of weight inspection, if the weighing value is
less than the target value-lower limit value, it will be judged as
undererror

Tare weight The weight of the item's outer packaging

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Qualified culling The distance traveled by the product from the end of the scale
distance to the start of the qualified culling mechanism

Duration of qualified The duration of the qualifying cull mechanism's action

culling

Out-of-tolerance The distance traveled by the product from the end of the scale
culling distance to the start of the offset removal mechanism

Underweight culling The distance traveled by the product from the end of the scale
distance to the start of the underbalance removal mechanism

The out-of-tolerance The duration of the kill mechanism's action

culling action time

Undershoot culling The duration of the underkill operation

action time

Unqualified culling The distance traveled from the end of the scale to the
distance nonconforming product after the start of the removal
mechanism

The time of the The continuous action time of the rejection mechanism for
unqualified culling nonconforming products (including out-of-error + undererror)
action

Correction factor Standard no correction is 1000. Correction factor

=1000+(actual weight - test weight result)/ min indexing. That
is, if the weight test result is light, the correction factor is the
number greater than 1000, if the weight test result is heavy,
the correction factor is the number less than 1000

Total lot Total number of pieces of heavy product inspected

Qualified batches Number of eligible batches of products

Sampling starting The sampling data to this percentage is discarded after the
percentage object is placed on the scale

Percentage used for Data that is consistently used as a percentage from the start of
sampling sampling is used to calculate the weight check result

Dynamic zeroing filter Filtering parameters in the weighing process

grade

Dynamic clearing When the belt is running, within the stability determination
stability range time, the weight variation range is judged to be stable within

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 CW-1.2K user’s manual

this setting value, and only when it is stable can dynamic

zeroing be allowed

Dynamic zeroing and When the belt is running, within this setting value, the range of
stabilizing time weight variation is judged as the stability of the scale platform
within the range of dynamic zero clearance stability. Only when
the stability allows the dynamic zero clearance

Maximum sampling Maximum sampling time during weighing

time

Average feeding times When servo control is carried out, the average value of the set
number of products is compared with the user's set value, and
the difference between them is used as the basis of
control.When it is 0, there is no need to fill the servo function

Servo pulse frequency The pulse frequency value of the servo motor

Number of product Equivalent to the number of objects from the charging machine
delays to the photoelectric switch of the weighing scale.Also refers to
the number of products passed before the next correction

Servo charging This setting is the adjusted weight corresponding to each

sensitivity correction pulse

Servo target value Equivalent to the target value of package inspection weight

Exclusion of servo When the weight is higher than this value, it does not
upper limit participate in the average calculation and will generate an
alarm

Exclude servo lower When the weight is below this value, it does not participate in
limit the average calculation and will generate an alarm

Servo dead zone If the absolute weight error is less than this, no correction is
made

Maximum servo Means the maximum allowable modulation correction

modulation

Exclude servo upper Exclude the servo upper limit alarm to stop
limit alarm stop

Exclude the servo Exclude the servo lower limit alarm to stop
lower limit alarm to
stop

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 CW-1.2K user’s manual

Failure to correct alarm Failure to correct alarm stop in time

stop in time

3.5.3 Modify product parameters

On the Product list page, select the product whose parameters you want to modify
from the product list and click "Product Parameters" to enter the product parameters
interface to modify the selected product parameters (the newly added product directly
jumps to the product parameters interface).

 The standard weight refers to the weight of the product to be checked, and the upper
and lower limit is the allowable deviation value of qualified product;If it is not necessary
to calculate the packaging weight of the product, the outer packaging weight of the
product can be written into the tare weight column, and the net weight should be filled
in the standard weight column.
 The product number is automatically generated by the system;The linear speed of the
belt is calculated from the detection speed, and changes with the change of the
detection speed. It cannot be filled in (the linear speed of the belt should be consistent
with the linear speed of the front and rear end conveying mechanism).
 The compensation weight difference value is calculated by dynamic calibration. Under
normal circumstances, manual change is prohibited to prevent deviation between the
product weight and the actual weight.
 When filling in the product parameters, attention should be paid to its value range.
Generally, if it is lower than the lower limit of the parameter range, the parameter
value will remain unchanged; if it is higher than the upper limit of the parameter range,
the upper limit of the parameter range will be written by default.
 The definition of weight checking speed, belt speed and correction coefficient is
described in detail on the help interface of product parameters. If necessary, you can
click "Help" to view.
3.5.4 Delete product parameters
On the product list page, select the product to be deleted and click "Delete Product"
to delete the product. After deleting the product, the following product parameters will
move forward in order, and the product number will move forward.The product cannot be
deleted during the operation of the weight check scale;In order to prevent product
parameters from being incorrectly deleted, the product name should be set reasonably
when setting product parameters.

3.6 Calibration scale

In order to ensure the correct weight of the weighing scale and the linearity of the
weight change, each weighing scale needs to carry out weight calibration and dynamic
calibration.For specific operation methods, please refer to "Operation Instructions on
Buttons and Operation Frames" in section 3.3.2.

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Figure 3-11 shows an example of the weight calibration interface

Description of static calibration parameters:

Name Instructions

Calibrate the empty Eliminate external interference, the scale table at zero and
scale table stable, can be clicked

Calibrate the scale Enter the weight of the calibration weight

weight

The weight calibration Put the weight on and after entering the weight of the weight,
scale click

Current voltage value The current voltage value of the sensor

Empty scale voltage The voltage value of the sensor when the top of the scale is
value emptied

Weight voltage value The voltage value of the sensor after placing the weight

3.6.1 The weight calibration scale

In the setting page, click "Static calibration" to enter the interface of weight
calibration, follow the steps on the touch screen to calibrate the scale, and click "Exit" to
return to the main interface after the calibration is completed.For specific operation
methods, please refer to "Operation Instructions on Buttons and Operation Frames" in
Section 3.3.2.
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 During calibration, ensure that the weighing scale is in the stopped state; otherwise,
the interface of the weighing scale cannot be entered;Calibration should ensure that
there is no item on the weighing platform, no vibration on the weighing platform, and
no relatively strong air flow around the weighing scale.
 When the weighing platform is empty, ensure that the weighing platform is at zero
position and stable. Otherwise, please eliminate interference and click "Calibrate the
weighing platform". The second step can only be carried out when the touch screen
indicator is 0 and the stability sign is lit.
 When placing the weight, try to avoid the weight hitting the surface of the weighing
platform. Enter the correct weight into the weight box of the weighing platform,
otherwise it will lead to inaccurate calibration scale or calibration failure (the weight of
the weighing platform should be greater than the product weight and not exceed the
maximum range of the weighing scale).
 If the calibration fails, please check whether the scale is stable and whether the sensor
is interfered by the outside world or whether the scale is in contact with other
equipment, and re-calibrate after troubleshooting.
3.6.2 Dynamic calibration of scale
On the product page, click "Dynamic calibration" to enter the dynamic calibration
interface, and perform dynamic calibration according to the text prompts. When completed,
relevant parameters will be automatically calculated and generated and product parameters
will be written.Click "Exit" to return to the main interface after completion of calibration.For
details, please refer to Section 3.3.2 "Operation Instructions for Buttons and Operation
Frames".

Figure 3-12 Dynamic calibration screen example

Description of dynamic calibration parameters:

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 CW-1.2K user’s manual

Name Instructions

Zeroing Clear the current weight value to zero

Get the weight Stop the belt running and put the test material on after the
static weight value shown

Dynamic calibration The number of repeated runs of dynamic calibration. The

times default is ten, and no less than five are recommended

The belt will run, and after the statically weighed object has
passed, it should be moved back to the front stage, repeatedly
running dynamically, and the controller will automatically
Start up
record the dynamic weight. General dynamic calibration ten
times, the number of dynamic calibration to check the weight
scale will automatically stop

Maximum weight The maximum value of the weight check result during dynamic
calibration

Average weight During dynamic calibration, the average weight of each check
will be updated after the number of dynamic calibration is
completed

Correction factor The standard value is 1000. After the number of dynamic
calibration is completed, the controller will automatically
calculate this value according to the dynamic result and static
weight.

If it is not convenient for dynamic calibration, you need to

enter this value manually, which can be set in the product
parameter interface, and fill in the size of the value refer to the
method in the dynamic calibration parameter help interface

 Calibration must ensure that the check scale in the stopped state, otherwise can not
enter the dynamic calibration interface;When calibrating, ensure that there is no item
on the scale, no vibration on the scale, and no relatively strong air flow around the
scale.
 When the weighing platform is empty, it should be ensured that the weighing platform
is at zero position and stable, otherwise, please eliminate external interference and
carry out "zero clearing" operation.
 When placing the product, the product should avoid hitting the surface of the weighing
platform. Only after the weight is stable can you click "Obtain static weight";If the
product has a gross weight value, please set the gross weight value first before

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 CW-1.2K user’s manual

dynamic calibration.
 The default value of learning times is 10. If the learning result is not accurate, you can
increase the learning times appropriately.If the production requirement is not high, the
learning times can be appropriately reduced to improve the learning speed;External
interference should be avoided in the learning process, and the system will
automatically save the learning results and display them after the completion of
learning.
 The change of product detection speed requires dynamic calibration again.
 The principle of dynamic calibration, attention to implementation and alternative
methods are introduced in detail in the interface of dynamic calibration parameter help.
If necessary, you can click Help to view.

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 CW-1.2K user’s manual

4. Data viewing
This check weight scale has data storage and query function, convenient for users to
check the historical check weight data and event information.Under the main interface,
click "Data" to enter the interface for viewing data (no permission is required for data
interface).

4.1 Check the result data

In this interface, you can view the weight check time, weight check result and product
code. When the weight check scale stops, insert the USB disk into the touch screen and
click "Export data" to export all the weight check data to the USB disk;Click "Delete data" to
delete all the current weight data;Click "Next page" or "Previous page" to review the
duplicate data (in running state, only the duplicate data can be viewed, and the operation
of "Export data" and "delete data" cannot be performed).For specific operation methods,
please refer to "Operation Instructions on Buttons and Operation Frames" in Section 3.3.2.

 After testing a certain number of products, you can insert the USB flash drive to the
touch screen to export the existing weight data, otherwise too much weight data will
cause inconvenience to data query.
 Changing the production of the product and adding new products will not affect the
query of the test result, delete the product, please first check out the test result and
clear.

Figure 4-1 Example of the weight check data page

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 CW-1.2K user’s manual

4.2 Statistics
Click "Statistics Data" to enter the check weight data statistics interface, which displays
product distribution intuitively. Click "Print data" to print statistics information, click "Export
data" to export statistics information to the USB disk inserted into the touch screen, click
"Delete data" to clear statistics information.For specific operation methods, refer to
"Operation Instructions on Buttons and Operation Frames" in Section 3.3.2.

 Statistics include out of tolerance, under tolerance, the cumulative number of

inspection times of qualified products, weight, average value and probability
distribution, etc.
 Before testing a new batch of product, the previous statistics should be cleared,
otherwise the new product will accumulate on the original statistics and generate
incorrect statistics.

Figure 4-2 An example of the statistics page

4.3 Alarm information

Click "alarm record" to enter the interface for viewing alarm records, and you can view
the alarm information in the process of weight inspection, including alarm serial number,
alarm time, number and alarm content.For specific operation methods, please refer to
"Operation Instructions of Button and Operation Frame" in Section 3.3.2.

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 CW-1.2K user’s manual

Figure 4-3 Alarm information screen example

4.4 Statistical graph

Click "Statistical Chart" to enter the statistical chart interface to visually view the
product weight distribution.

Figure 4-4 Example of the statistical chart interface

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 CW-1.2K user’s manual

5. Quantity of switches
5.1 I/O I/O testing

Figure 5-1 I/O parameter screen Example 1

Figure 5-2 I/O parameter screen example 2

Click "Switch quantity" on the setting page to enter the IO test interface. The system
provides 6 input terminals and 12 output terminals, which users can decide whether to use

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 CW-1.2K user’s manual

according to production requirements.For specific operation methods, please refer to

"Operation Instructions on Buttons and Operation Frames" in Section 3.3.2.

IO test is to test whether the IO port is properly connected to the external device.
During the test, click "Switch" after the output to output 1-8. If the corresponding relay coil
is closed (red indicator light on the relay base) and the corresponding device is in action,
the connection is normal and the output point of the weighing scale is valid; otherwise,
please check whether the connection between the output point and the device is
correct;Click the "switch" behind the three-color light, if the three-color indicator light is on,
the connection is correct.

The input test can be carried out by setting the low level signal (DC0V) at the input
end. If the low level signal is effective at the corresponding input port, the test indicator
box behind the corresponding input point ON the touch screen will light up and display
"ON" (The photoelectric input can be blocked on the main interface when testing the
photoelectric input, if the corresponding input and discharge marks are lit up, the
photoelectric input is effective).The input and output signals can be defined by themselves.

The default switching quantity is defined as follows:

Enter the Definition Output Definition

port port
number number

DI1 Run Relay - Run

K1

DI2 Stop Relay - Stop

K2

DI3 Clear alarm Relay - Out-of-error culling

K3

DI4 Aberration culling Relay - Undercount culling

complete K4

DI5 Owe culling complete Relay - Alarm

K5

DI6 Packet detection Relay - Number of batches completed

K6

E1 I1 (incoming Relay - Qualified indication

photoelectric sensor) K7

E2 I2 (discharge Relay - Disqualified cull

photoelectric sensor) K8

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 CW-1.2K user’s manual

DO 1 Undefined

DO 2 Undefined

DO 3 Undefined

DO 4 Undefined

L1 O17 (Buzzer alarm output)

L2 O7 (alarm light out-of-tolerance

indication, no relay)

L3 O10 (alarm light qualified

indication, no relay)

L4 O6 (alarm light undererror

indication, no relay)

List of definable switching quantities:

Enter switch quantity:

Number Name Function description

I00 Undefined No function when this item is selected.

I01 Input When the input is valid, it means that the input
photoelectric photoelectric sensor has sensed the measured object

I02 Output When the input is valid, it means that the output
photoelectric photoelectric sensor has sensed the object under test

I03 Run When the input is valid, the device will boot into the
running state

I04 Stop The device will stop running when the input is valid

I05 Clear alarm When the input is valid, the device will clear the current
alarm

I06 Aberration cull When the input is valid, the offset cull is complete
complete

I07 Owe culling When the input is valid, the underbalance culling has been
complete completed

I08 Packet detection When the input is valid, the device performs packet
connection detection

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 CW-1.2K user’s manual

I09 Belt speed

detection

I10 Run/stop [level] Control device operation or stop by level signal

I11 Run/stop [edge] When the device is in the stopped state, the signal input is
effective, the device starts to enter the running state;

When the signal input is effective, the device stops

running;

I12 Stop (level) The signal is valid and the touch screen cannot start the
device

Output switching quantity:

Number Name Function description

O00 Undefined No function when this item is selected.

O01 Out-of-tolerance If the weight check result is out of tolerance, the output is
indication valid and continues until the next weight check is completed.

O02 Owe indication If the weight check result is underweight, the output is valid
and lasts until the next weight check is completed.

O03 Run Run status output is valid.

O04 Stop The stopped state output is valid.

O05 Alarm Output is valid when alarming.

O06 Out-of-order The weight check result is out of tolerance, according to the
culling set out of tolerance eliminator distance delay, and then
according to the set duration output valid.

O07 Owe culling The weight check result is the undererror, according to the
set offset culler distance delay, and then according to the
set duration output valid.

O08 Disqualified The weight inspection result is out of tolerance or

culling undertolerance, according to the set distance delay of the
unqualified eliminator, and then according to the set
duration output effective.

O09 Number of This output is valid when the set number of batches is
batches reached.
completed

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 CW-1.2K user’s manual

O10 Qualifying If the weight check result is underweight, the output is valid
instructions and continues until the next weight check is completed.

O11 Busy Stop + When the system is in busy state, busy detection is valid,
communication this output is invalid, busy state is invalid and
communication command is received, this output is valid,
busy detection is invalid, this output is valid

O12 Busy stop When the system is in busy state, busy detection is valid and
this output is invalid, busy state is invalid, this output is
valid, busy detection is invalid, this output is valid

O13 Feed According to the state of the input photoelectric output, the
photoelectric input photoelectric effective, then the output effective.
output

O14 Discharge According to the state output of discharge photoelectric,

photoelectric discharge photoelectric is effective, then the output is
output effective.

O15 Speed up pulse Servo feedback function

O16 Deceleration Servo feedback function

pulse

O17 Buzzer alarm Output in different ways depending on your choice

output

O18 Qualified Cull

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6. Working parameters
6.1 Working parameter Settings
Click "Set" to enter the interface of working parameters, and the user can decide
whether to open according to the production needs. If the corresponding alarm is
generated after opening, the weight checking scale will automatically alarm or alarm stop.
It needs to manually click "clear alarm" or input the signal of "clear alarm" to start the
weight checking again (after the alarm is generated and until the clear alarm is completed,
The motor of the check weighing scale runs but does not determine whether the object is
on or off the weighing platform, nor does it carry out weighing operation), and the alarm
information is stored in "Data" - "Alarm information".For specific operation methods, please
refer to "Operation Instructions of Button and Operation Frame" in section 3.3.2.

Figure 6-1 Working parameters screen example

Analysis of working parameters:

Name Instructions

The alarm stops when The default number of over/under error queue is 20, which
means that if the removal distance is long enough, that is, it
the queue is full
takes a long time for the products to be removed to arrive at
the removal institution, there can be more than 20 products in
the middle. If there are more than or equal to 20 over/under
error products to be removed in this distance, it will alarm and
stop

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 CW-1.2K user’s manual

If not eliminated in After the next unqualified product has gone through the
reinspection process, the last product has not been removed,
time, the alarm will be
the alarm will be stopped
stopped

Busy alarm stop In the last product has not been out of the inspection belt, the
next product into the inspection belt, it will show busy alarm
and stop.If the back end is connected with an over and under
error elimination mechanism, the default is over error
elimination

The time of Indicates that if the discharge photoelectric induction

continues, and exceeds the plugging time set in the system
overplugging will alarm
parameter interface, it will alarm and stop
and stop the machine

If the maximum time There are two kinds of action;1. If the maximum time on the
scale set on the touch screen is more than 2 times of the time
on the scale is
required for the object to pass the scale, the maximum alarm
exceeded, it will alarm time on the scale is twice of the time required for the object to
pass the scale. 2. If the maximum time on the weighing
and stop
platform set on the touch screen is less than or equal to twice
the time required for the object to pass the weighing platform,
the maximum alarm time on the weighing platform is the
maximum time on the weighing platform set on the touch
screen

The number of The number of consecutive failed alarms

consecutive unqualified
alarms

The number of super In the product parameter setting interface, you can set the
alarm number of continuous nonconformance. If the set value
continuous
is not zero and the switch is on, the number of continuous
disconformance alarm nonconformance will alarm and stop when it reaches this value
stops

Upper limit of motor The maximum load the motor can withstand
load

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 CW-1.2K user’s manual

Stop above the motor The upper limit of motor load can be set in the system
parameter interface of the product. When the weight of the
load limit
product or the object to be weighed exceeds the set upper
limit, it will alarm and stop

Overweight or Display on the main page that the result of this test product is
out of tolerance or under tolerance and the device will stop.If
underweight alarm and
you need to use this function, you need to move forward the
stop discharge photoelectric position, please contact our technical
department for details

The main page On the main page, it shows that the result of this test is out of
tolerance, under tolerance, or qualified
displays the
information of
overshoot and
undershoot

The main page will Only the product weight test result of this test is displayed on
the main page
display only the weight
test result

Auxiliary display of Display the detected real-time product weight on the main
page
real-time weight

Units g/kg/t Optional

Minimum indexing 0.001. 0.002. 0.005. 0.010. 0.020. 0.050 Optional

Check scale for When calibrating the scale, the weight variation range is
judged to be stable within this setting value
stability range

Judge the range of During the stabilization time, the range of weight variation is
judged to be stable within this setting value
stability;

Zero tracking range Weight value within this range, automatically clear zero

Clear range The range at which the scale table is zeroed out during
weighing

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 CW-1.2K user’s manual

Automatic zeroing at Perform zero clearing once the scale platform is started
startup

Check the maximum Is the longest judgment time in the process of weight
calibration, indicating that the weighing platform must be
judgment time of the
stable and the zero voltage must be within the limited range
scale during the calibration of the empty weighing platform and the
weight calibration process. If the above conditions are not met
and the maximum judgment time is exceeded, the alarm will
be given and the weighing will fail

Decimal point 0 0.0 0.00 0.000 0.0000 Optional

Maximum range 1.2kg

Check scale for When checking the scale, the range of weight variation is
judged to be stable within the stability range of the scale
stability time

Stabilizing time Within this setting, the range of weight variation is judged to
be stable within the range of stability

Zero tracking time During this time, the system data drift does not exceed the
zero tracking range

The system Zero clearing operation will be performed once on the scale
platform
automatically clears
zeros after power-on

Feed to shake time Do not sample during this time after feeding

Time to remove Do not sample during this time before discharging

shaking from material

Length of scale table 400mm

Maximum time on the Maximum time an item is on the scale

scale table

Material blocking time From the discharge photoelectric induction to the material
time, more than this time alarm

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 CW-1.2K user’s manual

Dynamic zero Range of zeroing of the weighing platform during the weight
checking process
clearance range

Digital filtering level 0 to 9 can be set

AD sampling rate 120 beats per second 240 beats per second 480 beats per
second

Pre-filter grade 0 to 20 optional

Time between When the system runs to the set value, the photoelectric dust
photoelectric dust removal begins
removal

Duration of The output time of the photoelectric dust removal switch

photoelectric dust
removal

Buzzer buzzer type There are four types to choose from, which are undererror,
out-of-error, unqualified, and qualified

Buzzer sounding mode There are three ways to choose from, long buzzer, off, and
delay

Buzzer delay time The delay time is 0.000-10.000S

When the overgap is When the overgap is not suspended, the pop-up window
displays the alarm information
not suspended, the
pop-up window will
alarm

The over and under The over and under alarm is included in the alarm record
alarm is included in the
alarm record

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7. Communication
The product has RS485 and optional network port for external communication. The
communication protocol is standard Modbus RTU, and the network port communication
includes Modbus TCP/IP and HTTP.When the communication mode is printed, RS485 can
be connected to the printer for printing output.For detailed operation methods, refer to
"Operation Instructions on Buttons and Operation Frames" in section 3.3.2.

7.1 Communication parameters

Click "Setting" to enter the interface of working parameters, and then click the next
page, the user can set the relevant serial port communication mode, to realize the
communication between the weighing scale and the host computer and other external
control units or connect the printer.

Figure 7-1 Communication parameters interface Example 1

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 CW-1.2K user’s manual

Figure 7-2 Communication parameters screen Example 2

Description of communication parameters:

Name Instructions

Serial communication Modbus-RTU

method

Mailing address The address of the current device

Baud rate Baud rate for current device communication

The byte format of the current device communication. Default

Byte format
8-E-1

High and low bytes Bytes of current device communication. Default AB-CD

Network port Network port communication mode

communication mode

IP address IP address for current device communication

Port number Port number for current device communication

MAC address MAC address for current device communication

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7.1.1 Serial port communication

The weighing scale is configured with three serial ports, which can communicate with
the host computer through RS485 serial ports. The optional functions are Modbus-RTU and
print mode (serial port three can only be set as print). The data format 7-E-1 is fixed as
print, and Modbus-RTU communication cannot be carried out.

Serial number Range Instructions

Mailing address 1 to 245 Check the weight

scale slave number

Communication Modbus-RTU, print Communication

method Modes and functions

Baud rate 9,600, 19,200, 38,400, 57600 and Communication data

115,200 transfer speed

Data format 7-E-1(Print), 8-e-1, 8-n-1. Communication

transmission data
Format

High and low High word first or low word first Facilitate
bytes communication of
various upper
computers

When the host computer communicates with multiple weighing scales at the same
time, the code of each weighing scale device cannot be consistent, and the maximum value
is 245 (that is, a single PC can be connected to 245 weighing scales at the same time).

7.1.2 Network port communication

The weighing scale can communicate with the host computer through a 10M/100M
adaptive network port. The optional functions are Modbus TCP/IP and HTTP
protocol.Parameter setting requirements are as follows:

Serial Instructions
number

IP The upper computer and the motherboard must

be in the same network segment and not equal

Port Range 0-65535, usually set to 502 for slave

number

MAC The address of each device cannot be repeated

address and is set before delivery

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 CW-1.2K user’s manual

HTTP works in server-side mode, and the protocol is as follows:

⒈ Send: http://IP,
Return: current weigh value (screen display value).
For example:
Send to: http://192.168.61.223
Return: 123.456kg
⒉ Send:
http://IP/szgmt.html
Return: Current weighing value (screen display value).
For example:
Send: http://192.168.10.15/szgmt.html
Return: 123.456kg
⒊ Send:
http://IP/cwrf.html
Return: Current weigh value (screen display value), new weigh data identification.
For example:
Send: http://192.168.10.15/cwrf.html
Return: 123.456kg0 (This value changes from 0 to 1 or from 1 to 0 when there is a
new check result)
⒋ Send:
http://IP/crf.html
Return: New weigh data identification.
Example:
Send to: http://192.168.10.15/crf.html
Return: 1 (change the value from 0 to 1 or from 1 to 0 when there is a new check
result)

7.1.3 MAC address

The MAC address is the physical address of the weighing scale and cannot be
modified. It represents the identification number of the weighing scale.

7.2 The Modbus register communication address is defined

PLC Module Parameter
Remarks
address address definition

Home screen status (Support function code 0x03)

.0 1: Weight positive overflow

Module current
40001 0000
status 1 .1 1: The sensor is overflowing

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 CW-1.2K user’s manual

.2 1: Weight negative overflow

.3 1: Negative sensor overflow

1: Weight plus or minus

.4 identifier bit 0: plus 1:
minus

.5 1: zero point identifier bit

1: Stabilize the identifier

.6
bit

... reserve

.12 1: Static calibration state

1: Zero point calibration is

.13
successful

1: Gain calibration is
.14
successful

.15 Reservations

.0 1: Run 0: Stop

1: Upper limit (for

.1
indication)

1: Lower limit (for

.2
indication)

1: Qualified (for
.3
indication)
Module current
40002 0001
status 2 1: out of tolerance (for
.4
culling)

1: Underbalance (for
.5
culling)

.6. 1: Qualified

.7. 1: Busy (for indication)

.8. 1: IO test

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 CW-1.2K user’s manual

.9. 1: Belt calibration

.10 1: Dynamic calibration

.11 1: Feed

.12 1: Discharge

.13 1: Keep

.14 1: Return to zero

... reserve

40007 0006 Stop status: real-time

Weight value weight;Running state: weight check
40008 0007 result

40539 0538
Out-of-
40540 0539 tolerance ratio

40541 0540 Underdifference

40542 0541 ratio

1: Busy

2: Not removed in time

40551 0550
3: Continuous disqualification

4: Total batch completed

5: Qualified batch completed

Error number
6: Block the material

There is no
40552 0551
8: Super maximum sampling time

9: Super motor load

40563 0562
Actual weight The number of products that actually
40564 0563 check speed pass the weighing scale in one

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 CW-1.2K user’s manual

minute during the product weighing

process

Product parameters (Function codes 0x03, 0x10 supported.)

40101 0100 Read: Currently selected product

number;Write: Write needs to
Product number select the product number and
40102 0101 update to write value after
writing

40103 0102 Static weight of the product to

Product weight
40104 0103 be checked

40105 0104
Allowable upper deviation of
Upper limit
40106 0105 product conformity

40107 0106
The permissible lower deviation
Lower limit
40108 0107 of product conformity

40109 0108 Package weight that is weighed

Pack weight with the product but does not
40110 0109 count towards the result

40215 0214 Quantitative production

Total lot inspection weight total
40216 0215 production;0 ~ 999999pcs

40217 0216 Quantitative production of

Qualified lot qualified products;0 ~
40218 0217 999999pcs

40279 0279
Photoelectric Initial value: 60, range: 60 to
40280 0280 dusting cycle 1800

40281 0281
Photoelectric dust
Initial value: 1, range: 1 to 10
40282 0282 removal time

Statistics (Support function code 0x03)

40501 0500
Qualifying cumulative
count
40502 0501

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 CW-1.2K user’s manual

40503 0502
Qualified cumulative
40504 0503 weight

40505 0504
Cumulative number of
40506 0505 out-of-bounds

40507 0506
Out of tolerance
40508 0507 accumulated weight

40509 0508
Cumulative number of
40510 0509 owes

40511 0510
Accumulated weight
40512 0511 of underweight

40513 0512
Cumulative number of
40514 0513 disqualifications

40515 0514 Disqualified

40516 0515 accumulated weight

40517 0516
Total cumulative
40518 0817 times

40519 0518
Total accumulated
40520 0519 weight

40521 0520
Maximum
40522 0521

40523 0522
Minimum
40524 0523

40527 0526
Pass rate
40528 0527

40529 0528

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 CW-1.2K user’s manual

All qualified products

40530 0529
are heavy

40531 0530 Average weight of

out-of-tolerance
40532 0531 products

40533 0532
Underweight products
40534 0533 average weight

40537 0536
Total cumulative
40538 0537 average weight

When the read value changes

40559 0558
from 0 to 1, or from 1 to 0,
the proof read value is
updated data.

Check weight result (When power-on, the value is

reading identifier (0, 1 fixed at 3, stop and alarm is 2.
change) When HMI programming,
40560 0559
according to the change of
value jump collection,
attention should be paid to
adding the judgment that is
not equal to 2 or 3)

40561 0560 Read as the result value of this

test weight, when there is a
Weight check result
40562 0561 new test result, the value will
be updated.

The following is readable bit status (read function code 0x01, write
function code 0x05)

00001 0000 Weight positive overflow

00003 0002 Weight negative overflow

00005 0004 Weight plus and minus sign

00006 0005 Zero mark

00007 0006 Stable sign

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 CW-1.2K user’s manual

00008 0007 Keep signs

00011 0010 Qualifying mark

00012 0011 Underage sign

00013 0012 Out-of-tolerance sign

00014 0013 busy

00015 0014 Call the police

00016 0015 Batch times to

Run (when writing ON, start running, stop running

00031 0030
when writing OFF)

00032 0031 Zero clear (when writing ON, zero clear)

Clear alarm (Clear alarm when there is an alarm

00033 0032
written ON)

00034 0033 Print (when writing ON, print out)

7.3 Print content

1. When the communication mode is set to print, connect the printer, click the print
button on the "Statistics" interface, or send the print command through the communication
mode, the output will be as follows:

----------------------- 上分隔横线符
DATE: 2015.10.15 打印日期
TIME: 15:21 打印时间
PRODUCT CODE: 1 产品号
TARE WT: 0.000kg 皮重值
UP LIM: 0.030kg 超差值
REF WT: 8.135kg 目标值
LOW LIM: 0.030kg 欠差值
PASS CT: 1 合格累计次数
PASS WT: 8.140kg 合格累计重量
PASS AVR: 8.140kg 合格平均重量
PASS RATE: 100.00% 合格率
OVER CT: 0 超差累计次数
OVER WT: 0.000kg 超差累计重量
UNDER CT: 0 欠差累计次数
UNDER WT: 0.000kg 欠差累计重量
TOTAL CT: 1 总累计次数
TOTAL WT: 8.140kg 总累计重量
MIN WT: 8.140kg 最小值
MAX WT: 8.140kg 最大值
----------------------- 上分隔横线符

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2. When the communication mode is set to result printing, the device will actively send
data. After each check, it will actively send the content shown in the following figure
through the serial port:

20140503142100 0.0346kg

The format is timestamp+weight. If there is an external printing device, the above

content will be printed. The above content is only an example. The specific printed data is
subject to the actual test results.

3、The data format of CHRE mode is as follows：

S leave status Leave sign limit leave Sampling unit CRC CR LF

T a a a results
X blank blank blank
space space space

Among：

（1）STX —— Start character，（02H）.

（2）status ——3 bit，In case of alarm, state 1 is "E" (45H), state 2 and state 3 are
error identifications, otherwise all three bits are spaces 20H.
（3）sign —— 1 bit. Each time there is a new sampling mean, the data mark is
added by 1, from 30H to 39H, and then back to 31H. Used for auxiliary extraction of
sampling data.
（4）limit —— 1 bit is the limit of the current sampling value. The upper limit of the
sampling value is "H" (48H). If the sampling value is qualified, it is "G" (47H). If the lower
limit of the sampling value is "L" (4CH).
（5）Sampling results —— 7-digit weight data (including 6-digit content, 1-digit decimal
point (2EH), if there is no decimal point, the high digit is 20H).If the weight value is 3.75, it
is 30H 30H 30H 33H 2EH 37H 35H.

（7）Unit - 2 digits, "kg (6BH 67H)" for kilogram and "g (67H 20H)" for gram.

（8）CRC - is a checksum, which means that all preceding values are added and
converted to decimal, and then the last two digits are taken and converted to ASCII code.
（9）CR - return sign (0DH).
（10）LF -- Line feed sign (0AH).

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7.4 Set the parameters of the driver

1. Use a digital operator to set the input motor driver, weight check motor driver, and
reject motor driver parameters F5.03 to 1, 2, and 3, respectively.

2. If the motor reverses after operation, use a digital operator to modify parameter F1.01
to 0.

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8. Program upgrade
The device can upgrade the motherboard program and touch screen program through
the way of U disk.For details, please refer to "Operation Instructions on Buttons and
Operation Frames" in section 3.3.2.

Figure 8-1 System Information screen example

After contacting our technical department, confirm that it is necessary to upgrade the
program of the motherboard or touch screen.Obtain the corresponding program upgrade
package first.Insert the USB flash drive with the upgrade package, click the "USB flash
Drive Upgrade Controller" button to enter the upgrade interface, and perform the
corresponding program upgrade according to the interface instructions.It is suggested to
upgrade the program of the equipment under the guidance of our technical personnel, so
as to avoid equipment failure or damage.

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9. Size
When the equipment is installed on site, it is necessary to ensure that there is no
contact between the weighing table and the surrounding area to avoid affecting the normal
weighing. The distance between the surrounding area of the weighing table should be
greater than 10mm.

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9.1 Outline size drawing (unit: mm)

Outline Dimensional Drawing of Low Box Version

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Outline Dimensional Drawing of High Box Version

* Note: The width, length and height of the scale stand of non-standard
customized products may be different from that of the standard products. For
details, please refer to the technical documents or drawings confirmed by the
user.
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10. Equipment repair and maintenance

10.1 Maintenance of motors
10.1.1 Routine maintenance
 Keep the motor clean and prevent oil, water and other dirt from entering the motor.
 Check motor terminal bolts and motor base fixing bolts for loosening
 Check the rotation of the motor blades
 Check whether the bearings at both ends of the motor have oil leakage and other
phenomena
 Pay attention to observe whether there is abnormal noise, vibration and special smell
in the operation of the motor.
10.1.2 Regular maintenance
 For normal operation of the motor, the mechanic and maintenance electrician shall
carry out the maintenance once a year.
 Remove dust or debris inside the motor (be careful not to damage the winding of the
motor
 Check whether the rotor of the motor is flexible and replace the wearing parts
(bearings, etc.)
 Check the insulation resistance of the motor windings to the ground. When the
insulation resistance is below 0.5MΩ, the motor must be dried.
 Replace the grease.
 Check whether the no-load current is within the specified range
10.1.3 Precautions
 In the process of maintenance, attention should be paid to the safety of electricity
and mechanical transmission, and illegal operation is strictly prohibited.
 When installing the repaired or replaced motor, attention should be paid to the wiring
mode, and attention should be paid to whether the motor rotation direction is
consistent with the reality.
 After installation, the motor should be clicked, and pay attention to observe whether
the motor runs normally.
10.2 Check the failure cause and treatment method of weight scale
10.2.1 No display on the touch screen
 Method of Handling poor Power contact Connect the power cable
 Loose or falling data cable treatment method Connect the data cable

10.2.2 Data pulsation large, abnormal fluctuation

 Handling Method for loose screws of the heavy machine pedestal Tighten the screws
of the heavy machine pedestal

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 The sensor is obviously disturbed, such as air conditioning, air flow, etc. Disposal
method to get rid of external interference
 Ground shaking, vibration, such as nearby machine rotation interference, cars
passing by, etc.Treatment methods to get rid of external interference
 The conveyer belt is affected by viscous objects
 Sensor base has debris accumulation or stuck processing method to get rid of
external interference
 Filter coefficient set too small processing method to increase the filter coefficient

10.2.3 The display is always zero

 The object is light and the weight falls in the zero range. The treatment should be
resolved by resetting the "zero range".
 Device trace to zero. The handling method can be solved by adjusting the
"automatic zero tracking" item in the calibration option of the system.
 The sensor data cable is loose, and the contact is not good. Solution Connect the
sensor data cable properly

10.2.4 Abnormal data display

 The error is too large. Handling Method Recalibrate the scale.
 Product number selection error. The handling method should be resolved
by clicking "Switch Product" again and selecting the corresponding companion
product number.
 The ambient temperature exceeds the normal operating range of the sensor. Ensure
that the ambient temperature is normal
 Aging or deformation of sensor components. Solution Replace the sensor

10.2.5 Busy alarm

 After the object into the material is not out of the weighing platform, and there are
objects on the weighing platform. Handling Method Adjust the feeding speed, the
material out of the weighing platform before allowing the next material on the
weighing platform.

10.2.6 Packaging error

 Remove too many unqualified products in time. Handling method Eliminate
unqualified products in time.

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10.2.7 Continuous nonconformity alarm

 The number of consecutive disqualifications exceeding the set value.Alarm prompt,
no need to deal with the weight check work normally.

10.2.8 Excess plugging time

 During operation, the object stays too long at the feeding or discharging end.
Solution Check the reason for the object staying time is too long and deal with it in
time.

10.2.9 Below the minimum sampling time

 The object is coming off the scale too quickly in operation. Adjust the speed of
the belt of the weighing table within the detectable range.

10.2.10 Super maximum sampling time

 Long period of time when the object in operation is not off the scale. Check the
reason why the object is not out of the weighing table for a long time and deal with
it in time.

10.2.11 Overload motor load limit

 The weight of the object exceeds the maximum range by a certain amount (exceeds
the maximum weight of the motor). Handling Methods Do not weigh objects beyond
the maximum range.

10.2.12 Automatic zeroing failed

 1. The current weight is out of the zero clearance range.
 2. The scale is unstable.Treatment Method 1 Empty the scale table 2 Make sure the
scale is stable

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