CAS WTM Series Service Manual
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CAS WTM Series Service Manual

Weight transmitter
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Service Manual – WTM
:
V1.1
REV NO
WTM Series
(Weight Transmitter)
Service Manual
LAST Rev. NO :
V1.1
LAST Rev. Date : 2015. 04. 20

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Summary of Contents for CAS WTM Series

  • Page 1 Service Manual – WTM V1.1 REV NO WTM Series (Weight Transmitter) Service Manual LAST Rev. NO : V1.1 LAST Rev. Date : 2015. 04. 20...

  • Page 2: Table Of Contents

    Service Manual – WTM V1.1 REV NO Table of Contents 1. Cautions for Your Safety ........................... 3 2. User Wanring ..............................6 3. Features ................................7 4. Overview ................................9 5. External Dimension ............................10 6. Installation & Connection ..........................12 7.

  • Page 3: Cautions For Your Safety

    Service Manual – WTM V1.1 REV NO 1. Cautions for Your Safety ‘ Please comply with 'Cautions for Your Safety', which will lead you to use the product safely and properly to prevent any dangerous situations. ■ Cautions are divided into 'Warning' and 'Alert', which mean as follows. ■...
  • Page 4 Service Manual – WTM V1.1 REV NO Warning Never disassemble, repair or Ensure the power plug to be Ensure the grounding of the retrofit the product. fully product. It might exclude the product inserted to prevent shaking. Poor grounding might cause from the quality assurance and Any instable connection might failure or electric shock upon...
  • Page 5 It might cause the weighing error or failure. Our Dealers : CAS feels that each of its valued customers should get the best service available. Whether it’s the initial installation of our product, maintenance/repair work, or simply answering questions about our...

  • Page 6: User Wanring

    Service Manual – WTM V1.1 REV NO 2. User Wanring Recommendations for the proper use of weighing instruments - Keep away from heat sources and direct sunlight - Repair the instrument from rain(except special IP versions) - Do not wash with water jet(except special IP versions) - Do not dip in water - Do not spill liquid on the instrument - Do not use solvents to clean the instrument...

  • Page 7: Features

    Service Manual – WTM V1.1 REV NO 3. Features Power supply Unit Power supply voltage 10 ~ 24 Max consumption 70 with 350 Ω Temperature range ℃ Storage temperature -25 ~ 85 Operating temperature -10 ~ 40 ℃ Loadcell Impedance(complete bridge) >...
  • Page 8 Service Manual – WTM V1.1 REV NO Minimum voltage division per verification scale division Maximum voltage for weighing range Programmable functions Acquisition of zero, taring, zero tracking Physical or theoretical calibration Slope correction Non-linearity polynomial correction Low pass, band-stop and self-adaptive digital filters Set points managements Checkweigher functioning mode Peak detection functioning mode...

  • Page 9: Overview

    Service Manual – WTM V1.1 REV NO 4. Overview...

  • Page 10: External Dimension

    Service Manual – WTM V1.1 REV NO 5. External Dimension 1. Weight : 6Digits, Decimal point, sign 2. Unit : ton, kg, lb 3. Message : Displayed of indicator’s status Ext Output are 4 Ext Inputs are 2...
  • Page 11 Service Manual – WTM V1.1 REV NO ■ Display Main function Sub function On = Net , Off = Gross LED ON : output 4 Closed Zero LED LED ON : output 3 Closed Stable LED LED ON : output 2 Closed Unit : ton LED ON : output 1 Closed Unit : kg...

  • Page 12: Installation & Connection

    Service Manual – WTM V1.1 REV NO 6. Installation & Connection Loadcell Connection Connect the loadcell cable to the terminal block of WTM <6wires loadcell> Note 1. In case of 4 wires load cell, connect EX+ with SEN+, and connect EX- with SEN-. Note 2.

  • Page 13: Weight Setup (Calibration) Mode

    Service Manual – WTM V1.1 REV NO 7. Weight Setup (Calibration) Mode What is the weight setup? It refers to the calibration to set the displayed value to the actual weight in displaying weights. How to Access to the Weight Setup Mode Turn on the power supply to access to the weight setup mode while pressing Cal S/W after removing the sealing Calibration Menu (CAL1 –...
  • Page 14 Service Manual – WTM V1.1 REV NO CAL 1 (CAL 1 automatically starts.) CAL 1-1 Function : Set Range Set Unit : kg, lb, ton Used key Display Descriptions Kilogram (kg) ▲ : Value increase : Cancle poiund (lb) : Save and next Menu CAL 1-2 Function: Setting Maximum Value Range of set value: 1 ~ 99,999...
  • Page 15 Service Manual – WTM V1.1 REV NO CAL 2 Function: Minimum division and decimal position setting Range of set value: 0.001 ~ 9999 Used key Display Descriptions d= 0.001 Minimum division 0.001 kg d= 0.01 Minimum division 0.01 kg ▲ : Value increase Minimum division 0.1 kg : Cancle : Save and next Menu...
  • Page 16 Service Manual – WTM V1.1 REV NO CAL 3 CAL 3-1 Function: Setting Multi Calibration Step Range of set value: 1 ~ 5 Used key Display Descriptions Setting multi calibration for step 1 STEP- 1 (CAL3-3 and CAL 3-4 are carried out ▲...
  • Page 17 Service Manual – WTM V1.1 REV NO CAL 3-2 Function: Zero Calibration Used key Display Descriptions Empty the load tray and press the UnLoAd setup key. The current weight value is displayed. : Cancle 1234 Confirm 'Stable' and press the setup : Save and next Menu key.
  • Page 18 Service Manual – WTM V1.1 REV NO Note 2. Move to CAL-1 if the span adjustment is over with no error.
  • Page 19 Service Manual – WTM V1.1 REV NO CAL 4(Hopper Calibration) CAL 4-1 Function: Setting Multi Calibration Step Range of set value: 2 ~ 5 Used key Display Descriptions Setting multi calibration for step 2 ▲ : Value increase STEP- 2 (for hopper system) : Cancle Setting multi calibration for step 5...
  • Page 20 Service Manual – WTM V1.1 REV NO At this time, the weight value should be set to a value greater than the previous one. Note 2. Move to CAL-1 if the span adjustment is over with no error.
  • Page 21 Service Manual – WTM V1.1 REV NO CAL 5(Direct Calibration) CAL 5-1 Function: Direct input about the zero value of loadcell Range of set value: 1 ~ 99,999 Used key Display Descriptions ZE-CAL Direct zero input mode ▲ : Value increase ◀...
  • Page 22 Service Manual – WTM V1.1 REV NO Note 2. Move to CAL-1 if the zero adjustment is over with no error.
  • Page 23 Service Manual – WTM V1.1 REV NO CAL 7 Function: Factor Calibration Used key Display Descriptions This function cannot be used because NOTUSE ▲ : Value increase of multi calibration. ◀ : Digit change It means you entered the factor FACtor correction mode.
  • Page 24 Service Manual – WTM V1.1 REV NO CAL 9 CAL 9-1 Function: Setting Dual Range Range of set value: 0 ~ 1 Used key Display Descriptions ▲ : Value increase DUAL- 0 Dual range function is not used. : Cancel DUAL- 1 Dual range function is used.

  • Page 25: How To Seal The Indicator (Sealing)

    Service Manual – WTM V1.1 REV NO 8. How to Seal the Indicator (Sealing)

  • Page 26: Installing Options

    Service Manual – WTM V1.1 REV NO 9. Installing Options 1) Turn Off the Power and Open the top cover of WTM 2) Insert option PCB to main PCB EXT I/O A-OUT PROFI BUS ETHERNET A-MEMORY 3) Solder the bottom side of the assembled option PCB 4) Assemble the top cover ot WTM...

  • Page 27: Interface

    Service Manual – WTM V1.1 REV NO 10. Interface RS485 Communication...

  • Page 28: Enter The F.w Update Mode(Wtm-200)

    Service Manual – WTM V1.1 REV NO 11. F.W Update Method 11.1. Enter the F.W update mode(WTM-200) Push the CAL S/W and power on then WTM-200 enter the F.W update mode 11.2. Enter the F.W update mode(WTM-500) Push the key and power on then WTM-500 enter the F.W update mode...

  • Page 29: F.w Update Method

    Service Manual – WTM V1.1 REV NO 11.3. F.W update method Run this program. 1. Select port number and click the ‘Connect’button(Baud Rate = 115200) If connect status is OK, beep sound will be off. 2. Check the connection status...
  • Page 30 Service Manual – WTM V1.1 REV NO 3. Click the ‘Load Hex File’ button, choose the file for downloading. 4. ‘Erase-Program-Verify’button click. Download will run. 5. Power reset after download is completed, Program will run by new version...

  • Page 31: Exploded Views

    Service Manual – WTM V1.1 REV NO 12. Exploded Views 12.1. Exploded view...

  • Page 32: Partlist

    Service Manual – WTM V1.1 REV NO 13. Partlist 13.1. Electronics Parts...
  • Page 33 Service Manual – WTM V1.1 REV NO Image Part Code Parts Name DESCRIPTION Q'ty 6P00PWT0330A MAIN PCB MAIN PCB ASS’Y 6P80PWT03310 Analog out PCB Analog Out PCB ASS’Y 6P80PWT03320 Display PCB Display PCB ASS’Y 6P80PWT03300 Ext IO PCB Ext IO PCB Ass’y Alibi Memory 6P80PWT03340 Alibi Memory PCB Ass’y...

  • Page 34: Mechanism Parts

    Service Manual – WTM V1.1 REV NO 13.2. Mechanism Parts...

  • Page 35: Block Diagram

    RS-485 GPIO AOUT 128K DATA_M GPIO RMII KEY & Ethernet DISPLAY SPI & GPIO GPIO RTC & EXT I/O ALIBI 3.3V CAS Co. Ltd. 12~24V Title WTM Main(02-Block Diagram) Size Document Number 6100-PWT-0330-0 Date: Thursday , October 30, 2014 Sheet...

  • Page 36: Revision

    Service Manual – WTM V1.1 REV NO 15. Revision CAUSE DATE APPROVAL Improved Main PCB for RE, CS, ESD 2015.04.20 JaeJoon Hong...

This manual is also suitable for:

Wtm-200Wtm-500

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