Rice Lake 920i Technical Manual
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Rice Lake 920i Technical Manual

Programmable hmi indicator/controller
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See also: Operator's Manual , Operating Manual
In-Motion Weighing Systems
920i Programmable HMI Indicator/Controller
Technical Manual
July 25, 2019
PN 108790 Rev D

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Do you have a question about the 920i and is the answer not in the manual?

Questions and answers

mike nixon
April 10, 2025

how to zero master totals on the rice lake 920I

0
1 comments:
Mr. Anderson
April 10, 2025

To zero master totals on the Rice Lake 920i, follow these steps:

1. Go to the Supervisor’s main menu.
2. Select "6 - Transactions" to delete all stored transactions.
3. When prompted with "Clear Transactions—Are You Sure?", press "Yes".
4. After confirming, the system will prompt "Clear All Accum Totals—Are You Sure?".
5. Press "Yes" to clear all customer, truck, product, and project accumulations.

This answer is automatically generated

0

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Summary of Contents for Rice Lake 920i

  • Page 1 In-Motion Weighing Systems 920i Programmable HMI Indicator/Controller Technical Manual July 25, 2019 PN 108790 Rev D...
  • Page 2 All information contained within this publication is, to the best of our knowledge, complete and accurate at the time of publication. Rice Lake Weighing Systems reserves the right to make changes to the technology, features, specifications and design of the equipment without notice.

  • Page 3: Table Of Contents

    I/O Table ................. . 27 Technical training seminars are available through Rice Lake Weighing Systems.
  • Page 4 Photo Eye Troubleshooting................33 Rice Lake continually offers web-based video training on a growing selection of product-related topics at no cost.

  • Page 5: Introduction

    • A single photo eye for operation or two photo eyes which trigger start and stop weighment capture • A 920i HMI integrator linked and programmed to average the weight signal at the rate of 60 times per second between the start and stop photo eye inputs The scale sample rate is set to 60 Hz (default) and must not be changed.

  • Page 6: Safety

    Do not operate or work on this equipment unless this manual has been read and all instructions are understood. Failure to follow the instructions or heed the warnings could result in injury or death. Contact any Rice Lake Weighing Systems dealer for replacement manuals.

  • Page 7: Installation

    Unpacking the Crate The shipping carton contains the In-Motion Weighing Systems components. After unpacking, visually inspect the unit to ensure all components are included and undamaged. If any parts were damaged in shipment, notify Rice Lake Weighing Systems and the shipper immediately.

  • Page 8: Leg/Feet Adjustment

    920i In-Motion Weighing System 2.2.1 Leg/Feet Adjustment The legs come attached at the highest mount location up inside of the carriage for ease of shipping (Figure 2-2). Use the following steps to adjust the legs and feet to achieve the required line height..

  • Page 9: Recommended Auto Zero Settings

    This is an estimated value. When that time has expired, the user program sends a zero command to the 920i, as long as all of the above parameters are met. Then the system zeros the scale.

  • Page 10: Overload Stop Bolt Adjustment

    920i In-Motion Weighing System Overload Stop Bolt Adjustment The In Motion Weighing Systems has load cells equipped with a self-contained protection system to prevent them from being loaded above the rated capacity. Use the following steps to adjust the overload stop bolt.

  • Page 11: Setting Up The Scale

    Calibrate the scale to zero weight and full capacity. The scale capacity is etched in the tag located on the stainless steel shroud. Enter the configuration mode in the 920i and record the current scale graduations (grads). Increase the grads. Adjust the overload stop bolts. See Section 2.4 on page...

  • Page 12: Configuration

    Access to all menus plus user setup, See Administrator Parameters on page 13 Table 3-1. Login Security Levels 3.1.1 Login Procedures When the 920i is powered on, Enter Login Name is displayed. Enter Login Name: => Home Cancel Figure 3-1. Login Menu 1.

  • Page 13: User Setup - Administrator Access

    A strong password is recommended for the Administrator; use a password with characters and digits. When editing a user, press on the 920i to keep the same security level currently assigned to them. Products Use the following section to add, edit, delete and search products.
  • Page 14 Access the character map by pressing the UP arrow on the 920i display. If an incorrect letter or number is Note entered, press the CLR key. To exit the character map, use the down arrow key on the 920i display until cursor moves to the final letter. Enter Press...

  • Page 15: Menus And Softkeys

    Clear Statistics Clears all product statistics Program Version Displays the program version Set Time/Date Used to set the time and date for the 920i More=> Accesses next parameter display Exit Returns to the main menu Table 3-4. Supervisor Menu Softkeys...
  • Page 16 Figure 3-7. Setup Menu – Maintenance Parameters Softkey Description Enter the start conveyor output; changing this output may require changes in the 920i configuration file to set up digital Conveyor Setup I/O points Define the start data collection input, the stop data collection input, the maximum photo-eye on time (in milliseconds),...
  • Page 17 Set the E-Stop input; setting the input to 0 disables the feature E-Stop Setup Changing the input may require changes in the 920i configuration file to set up digital I/O points Enter a value to specify the auto-zero period (in milliseconds); it begins when the product is finished and can last Auto-Zero until the next product reaches the photo eye;...

  • Page 18: Calibration

    920i In-Motion Weighing System Calibration To calibrate, run a sample product across the scale to see the distribution curve and set up the weighing parameters for each product, including sample delay and sample time. By pressing , the conveyor begins and the photo-eye detects product. At the end of five seconds, the system alerts the Start user to the time at which the detection input was cleared.
  • Page 19 1200 ms Delay: 500 Duration: 300 Min. Detect 0 Begin weight Detection at 2016 milliseconds sample Delay Before Sample Min. Detect Start Exit Duration Sample Duration Figure 4-4. Distribution Curve Graph © Rice Lake Weighing Systems ● All Rights Reserved...

  • Page 20: Optimal Graph Adjustments

    920i In-Motion Weighing System End weight sample If there is no line or it is near the five second marker, the sample time may be too long. Note Move the product closer to the photo eye and perform another auto calibration. If this does not work, use the Sample Duration softkey to reduce the value.

  • Page 21: Calibrating A Product With Diagnostics Using Single Or Dual Photo Eyes

    Port 2 (9-pin serial port). When enabled, the 920i streams diagnostic weight information out of Port 2 each time a new product is detected. Use a straight through 9-pin serial cable to connect the 920i to a laptop with a terminal program like Hyperterminal or Procomm to view this data.
  • Page 22 920i In-Motion Weighing System To correct this example, move the Start Data Collection Photo Eye closer to the end of the scale or slightly increase the Delay Before Sample time and run the same product again. The goal is to have the photo eyes in a position where all of the samples are equal.

  • Page 23: Print Reports

    3. Use the arrows to scroll through the reports. up/down 4. With the desired report between the arrows, press the softkey. See Figure 5-3 on page 20 for report examples. Print © Rice Lake Weighing Systems ● All Rights Reserved...
  • Page 24 920i In-Motion Weighing System Figure 5-3. Report Examples www.RiceLake.com Visit our website...

  • Page 25: Option Card Installation

    2. Remove screws securing the backplate to the enclosure body. 3. Carefully align the option card connector with connector J5 or J6 on the 920i CPU board. 4. Press down firmly to seat the option card in the CPU board connector.

  • Page 26: Memory Expansion Card

    920i In-Motion Weighing System Memory Expansion Card Battery Figure 6-2. Memory Expansion Card Periodically check the battery voltage on installed memory option cards. Batteries should be replaced when the battery voltage falls to 2.2 VDC. Life expectancy of the battery is 10 years.

  • Page 27: Single-Channel A/D Card Installation

    Table 6-1. Ribbon Cable Connections Figure 6-3. Digital I/O Expansion Card Use the DIG I/O menu to configure digital I/O as necessary. See the 920i manual (PN 67887) for more information. Specifications I/O Channels Up to 24, 5 V/TTL, each software configurable as input or output...
  • Page 28 920i In-Motion Weighing System Connector Pin Function +SIG –SIG +SENSE –SENSE +EXC –EXC For 6-wire load cell connections, remove jumpers JP1 and JP2. Table 6-2. A/D Card Pin Assignments Figure 6-4. Single-Channel A/D Card Specifications Excitation Voltage 10 ± 0.5 VDC,...

  • Page 29: Closing The Enclosure

    5. Reconnect power to the indicator. The indicator automatically recognizes all installed option cards when it is powered on. No hardware-specific configuration is required to identify the newly installed card to the system. © Rice Lake Weighing Systems ● All Rights Reserved...

  • Page 30: Database/Communication

    920i In-Motion Weighing System Database/Communication Database Tables and Stored Variables The following tables list the variables for the user database, product database and user activity database. All data is stored in the PC database. Field Type Description Name String User login name...

  • Page 31: Statistics Database Table

    Product defect input 2 Output TO1 Output Output TU1 Output Output Tolerance Alarm Output Output Overrun Alarm Output Programmability Emergency Stop input Output Photo eye alarm Table 7-5. 920i Digital I/O Assignments © Rice Lake Weighing Systems ● All Rights Reserved...

  • Page 32: Port 3 Customizable Real-Time Data String

    Output: <STX>, 12345, 100.5, lb, accepted, 09/04/2015 09:13AM, <ETX> Table 7-6. Real Time Data Tokens Real time data can be sent over Ethernet TCP/IP or wireless communications. EtherNet TCP/IP or wireless requires the 920i option card be installed. Note Port 4 Serial Protocol General Format <STX>...

  • Page 33: Fieldbus Protocol

    Fieldbus Protocol Slot 4 of the 920i is available for a Fieldbus IP option. This gives the 920i the ability to communicate with a PLC. In order for this communication, setpoints are used to store real time product data. Also an output is fired each time new product data is available for the PLC.

  • Page 34: Plc Fieldbus Output To The 920I

    4 are in IEEE floating point notation. FCC Statement The 920i complies with Part 15 of the FCC Rules. Operation is subject to the following conditions: • This device may not cause harmful interference. • This device must accept any interference received, including interference that may cause undesired operation.

  • Page 35: Maintenance/Troubleshooting

    Not all conveyor equipment systems are wash-down rated. Even in those that are, extreme water pressure should be Note avoided around the electrical components of the unit and the load cells. © Rice Lake Weighing Systems ● All Rights Reserved...

  • Page 36: Troubleshooting

    Input relay does not change state input relay Program does not detect the input Ensure I/O is set correctly, new 920i program, replace 50 pin cable, replace 24 channel digital I/O card Program is set to single photo eye, not dual...

  • Page 37: Photo Eye Troubleshooting

    Adjust the come on? set correctly? sensitivity potentiometer Replace photo eye Continued on Figure 8-2 on page 34 Figure 8-1. Photo Eye Troubleshooting Diagram – Page 1 © Rice Lake Weighing Systems ● All Rights Reserved...
  • Page 38 920i In-Motion Weighing System Continued from Figure 8-1 on page 33 Does the input Is the cable relay turn on Wire cable wired correctly? in panel? correctly Is the e-stop Release e-stop pressed? Replace input relay Is the 50 pin...
  • Page 40 Specifications subject to change without notice. Rice Lake Weighing Systems is an ISO 9001 registered company. 230 W. Coleman St. • Rice Lake, WI 54868 • USA U.S. 800-472-6703 • Canada/Mexico 800-321-6703 • International 715-234-9171 • Europe +31 (0)26 472 1319 www.ricelake.com...

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