Rice-lake SCT-10 Manuel d'utilisateur Page 1

SCT Weight Transmitter10 SeriesInstallation & Operator’s Manual131129 Rev A

6 SCT Weight Transmitter Operator’s Manual1.4 Electrical Connections• It is recommended that the negative side of the power supply be grounded.• It i

Introduction 71.5 LED and Key Functions * To activate the secondary LED function, during weight display press and hold, then press .The LEDs light up

8 SCT Weight Transmitter Operator’s Manual1.6 Instrument Commissioning1. Plug power cord in to outlet to turn on indicator, the display shows inseque

Configuration 92.0 ConfigurationFigure 2-1. Scale Menu StructureCALIB FILTER PARA 0SERIAL0 SETAUTO 0TRAC 0TESTOut-In2345108976SeeSerialSubmenuSeeCalib

10 SCT Weight Transmitter Operator’s ManualParameter Choices DescriptionCALIb FS-tEOSEnS I bdI UI SNASSZErO1 NP 0WEIGHtunItCOEFFSee Section 2.1“Cali

Configuration 112.1 CalibrationFigure 2-2. Calibration Menu StructureParameter Choices DescriptionFS-TED Enter #deno *System Full Scale is determined

12 SCT Weight Transmitter Operator’s ManualdI UI S 12 *51020501000.00010.00020.00050.0010.0020.0050.010.020.050.10.20.5Division (resolution) - the we

Configuration 13To calibrate the instrument, the “Theoretical Calibration” onpage 14 must be completed first. After Theoretical Calibration isset, the

14 SCT Weight Transmitter Operator’s Manual2.1.1 Theoretical CalibrationThis function allows load cell rated values to be set.To perform the theoreti

Configuration 152. Press , FS-tEO is displayed.3. Press or until NASS is displayed, press . LED’s willbegin scrolling.4. Press or until desire

16 SCT Weight Transmitter Operator’s Manual2.1.5 Weight (Span) Calibration (With Test Weights)After performing Section 2.1.1 “Theoretical Calibration

Configuration 17The procedure ends by pressing or after entering the fifth value; at thispoint it will no longer be possible to change the calibrati

18 SCT Weight Transmitter Operator’s Manual4. Press or until desired number is displayed, press . 5. Press twice to exit set-up menu.All other

Configuration 192.2 Filter On The WeightThe filtering selection is used to eliminate environment noise, and is typically acompromise between responsiv

20 SCT Weight Transmitter Operator’s Manual2.3 Zero Parameters1. Press and hold , then press . CALIb will be displayed.2. Press or until PArA

Configuration 212.4 Analog OutputParameter Choices DescriptiontYPE 4-20 mA *0-20 mA0-10 V0-5 V-10 +10 V-5 +5 VSelects the analog output type. See “Sol

22 SCT Weight Transmitter Operator’s ManualSoldered JumperFor the output -10 +10 V and -5 +5 V the soldered jumper J7 must be closed:• Remove the fac

Configuration 232.5 Serial Communication SettingsFigure 2-3. Serial Communications Menu StructureAccording to the chosen protocol only the necessary s

24 SCT Weight Transmitter Operator’s ManualrS-485 (cont) Hdr1 PN Continuous weight transmission protocol (see Section 3.9)When the remote display is

Configuration 252.5.1 RS-485 Serial CommunicationFigure 2-4. RS-485 Serial Communications SCTSCTSCTRS485 +RS485 - max 500 mR

Contents1.0 Introduction... 11.1 Safety. . . . . . . . . . . . . . . . . . .

26 SCT Weight Transmitter Operator’s ManualIf the RS-485 network exceeds 100 metres in length or baud-rateover 9600 are used, close the two jumpers,

Configuration 27Parameter Choices DescriptionOUt 1OUt 2OPEn Normally Open: the relay is de-energized and the contact is open when the weight is lower

28 SCT Weight Transmitter Operator’s Manual2.7 Test1. Press and hold , then press . CALIb will be displayed.2. Press or until tEst is displaye

Configuration 292.8 Setpoints Programming1. Press to enter setpoints and hysteresis settings.2. Press or until desired setpoint or hysteresis pa

30 SCT Weight Transmitter Operator’s Manual2.9 Reserved For The Installer2.9.1 Default ScaleOperation must only be performed after contacting technic

Configuration 312.9.3 Keypad Or Display Locking1. Press immediately followed by , hold them down for about 5seconds (this operation is also possibl

32 SCT Weight Transmitter Operator’s Manual3.0 Operation3.1 Semi-Automatic Tare (Net/Gross)The semi-automatic tare value is lost upon instrument powe

Operation 33If a semi-automatic tare (net) is entered, it is not possible to accessthe enter preset tare function.If a preset tare is entered, it is s

34 SCT Weight Transmitter Operator’s Manual* For RIP remote displays, if the message exceeds 5 digits the displayreads ------.If an alarm becomes act

Operation 35Modbus Supported FunctionsAmong the commands available in the MODBUS-RTU protocol, only thefollowing are used to manage communication with

ii SCT Weight Transmitter Operator’s ManualRice Lake continually offers web-based video training on a growing selection of product-related topics at

36 SCT Weight Transmitter Operator’s ManualN° BYTES: Number of bytes transmitted as a value of the registers (2bytes per register)VAL. REG.: Contents

Operation 37At the time of writing, the setpoints, hysteresis values aresaved to the RAM and will be lost upon the next power-off; tostore them perman

38 SCT Weight Transmitter Operator’s ManualWeight (Span) Calibration Commands (With Test Weights)The instrument calibration can be changed via MODBUS

Operation 39The output status can be read at any time but can be set (written)only if the output has been set as or (see Section 2.6 “Outputs AndInput

40 SCT Weight Transmitter Operator’s ManualLeast significant byte(L Byte)Most significant byte(H Byte)Division value Divisor Decimals Units of measur

Operation 41Possible Command To Send To The Command Register (40006)3.7 ASCII Bidirectional ProtocolThe instrument replies to the requests sent from a

42 SCT Weight Transmitter Operator’s ManualSetpoint Values Setting:The PC transmits: $aaxxxxxxyckckCRin which: xxxxxx = 6 characters for the setpoint

Operation 43Error messages:In case of an instrument alarm for exceeding 110% of the full scale or 9 divisionsabove the value of the parameter NASS, th

44 SCT Weight Transmitter Operator’s Manual'8' for division value = 50'9' for division value = 100Zero Setting(See Section 2.1.3)

Operation 45in which: t = gross weight identification code (116 ASCII).xxxxxx = 6 characters to indicate the current weight value.In case of correct c

Introduction 11.0 Introduction1.1 Safety1.1.1 Safety Symbol Definitions:Indicates a potentially hazardous situation that, if not avoidedcould result i

46 SCT Weight Transmitter Operator’s Manual3.8 Fast Continuous Transmission ProtocolThis protocol allows for continuous serial output at high update

Operation 47• Hdrl P: remote display shows the net or gross weight, depending on theremote display setting.• Hdrl Pn: See next page for more informati

48 SCT Weight Transmitter Operator’s Manual3.10 Communication ExamplesThe numerical data below are expressed in hexadecimal notation with prefix h.Ex

Operation 49Example 2Command for multiple writing of registers (hexadecimal command 16, h10):Assuming that we wish to write the two setpoint values on

50 SCT Weight Transmitter Operator’s ManualExample 3Multiple command reading for registers (hexadecimal command 3, h03):Assuming that we wish to read

51SCT Weight Transmitter Limited WarrantyRice Lake Weighing Systems (RLWS) warrants that all RLWS equipment andsystems properly installed by a Distrib

52For More InformationWeb Site•Frequently Asked Questions (FAQs) athttp://www.ricelake.com/faqs.aspxContact InformationHours of OperationKnowledgeable

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2 SCT Weight Transmitter Operator’s Manual1.1.3 Equipment RecommendationsFailure to follow the installation recommendations will beconsidered a misus

Introduction 3Windy Conditions - Shocks - Vibrations: The use of weigh modules is strongly recommended for all load cells tocompensate for misalignmen

4 SCT Weight Transmitter Operator’s Manual1.2.2 Load Cell TestingLoad Cell Resistance Measurement (Use A Digital Multimeter):• Disconnect the load ce

Introduction 5• Transmits the gross or net weight via opto-isolated analog output 16 bit,current 0-20mA, 4-20mA or voltage 0-10V, 0-5V (±0V / ±5V by c