Rice Lake iRite 920i User manual

In-Motion Weighing Systems
920i Programmable HMI Indicator/Controller
Technical Manual
PN 108790 Rev DJuly 25, 2019

An ISO 9001 registered company
© Rice Lake Weighing Systems. All rights reserved.
Rice Lake Weighing Systems® is a registered trademark of
Rice Lake Weighing Systems.
All other brand or product names within this publication are trademarks or
registered trademarks of their respective companies.
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.
The most current version of this publication, software, firmware and all other product
updates can be found on our website:
www.ricelake.com

Contents
© Rice Lake Weighing Systems ● All Rights Reserved i
Contents
Technical training seminars are available through Rice Lake Weighing Systems.
Course descriptions and dates can be viewed at www.ricelake.com/training
or obtained by calling 715-234-9171 and asking for the training department.
1.0 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1.1 Hardware Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2.0 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.1 Unpacking the Crate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2.2.1 Leg/Feet Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.3 Recommended Auto Zero Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3.1 ZTRKBND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3.2 Zero Range (ZRANGE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3.3 Motion Band (MOTBAND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3.4 Stand Still Time (SSTIME) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.3.5 Zeroing Between Weighments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2.4 Overload Stop Bolt Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5 Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5.1 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5.2 Control Panel Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.5.3 Setting up the Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5.4 Component Tests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5.5 Product Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.5.6 System Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.0 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1 Security . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1.1 Login Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1.2 User Setup - Administrator Access . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2 Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.2.1 Adding a Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
3.3 Menus and Softkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3.3.1 Setup Softkey. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.0 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1 Single Photo Eye Product Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1.1 Optimal Graph Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.2 Calibrating a Product with Diagnostics Using Single or Dual Photo Eyes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
5.0 Print Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
6.0 Option Card Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.1 Memory Expansion Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2 Digital I/O Expansion Card . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.3 Single-Channel A/D Card Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
6.4 Closing the Enclosure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
7.0 Database/Communication. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.1 Database Tables and Stored Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
7.1.1 Statistics Database Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
7.1.2 I/O Table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

920i In-Motion Weighing System
ii Visit our website www.RiceLake.com
Rice Lake continually offers web-based video training on a growing selection
of product-related topics at no cost. Visit www.ricelake.com/webinars
7.2 Port 3 Customizable Real-Time Data String . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.3 Port 4 Serial Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
7.4 Fieldbus Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
7.4.1 PLC Fieldbus Output to the 920i . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.4.2 Response to Command 320 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7.5 FCC Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
8.0 Maintenance/Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.1 Preventive Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
8.2 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8.3 Photo Eye Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Introduction
©Rice Lake Weighing Systems ● All Rights Reserved 1
1.0 Introduction
The In-Motion Weighing Systems is a continuous process weighing instrument used for product sorting and data collection. The
system averages weights on the scale, displays the averaged weight and sends the average weight information to the Dynamic
Conveyor Scale Integrator (DSCI) via a serial port.
Configuration and calibration of the indicator is managed using serial commands or the indicator front panel keys. See the 920i
Technical Manual (PN 67887) for more information about configuration of the indicator.
This manual is intended for use by service technicians responsible for installing and servicing In-Motion Weighing Systems.
Manuals and additional resources are available from the Rice Lake Weighing Systems website at www.ricelake.com
Warranty information can be found on the website at www.ricelake.com/warranties
1.1 Overview
The system is primarily composed of the following components.
• A scale merged with a conveyor and drive mechanism
• 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.
As an object moves onto the scale conveyor, it passes the over run photo eye which ensures only one product is on the scale at
a time. Traveling the scale, the object passes in front of the start data collection photo eye which detects the leading edge of the
product and triggers the 920i to start collecting weights. When the leading edge of the object passes the stop data collection
photo eye, the collected weights are averaged and then displayed as the last weight.
A smooth product transition and matching belt speeds are necessary to achieve accurate results. Photo eyes and reflectors
must be kept clean for optimal performance. Extreme water pressure should be avoided around the electronic components,
even with equipment that is wash down rated.
1.1.1 Hardware Requirements
Cards
• Slot 1 - Single A/D card
• Slot 2 - 1 MB memory card
• Slot 3 - 24-channel digital I/O card
Serial Ports
• Port 1 - Printer reports
• Port 2 - Diagnostics/iRev/Keyboard)
• Port 3 - Data port (real-time checkweighing data)
• Port 4 - Serial protocol
This program requires registration to become operational.
Note
Note

920i In-Motion Weighing System
2 Visit our website www.RiceLake.com
1.2 Safety
Safety Signal Definitions:
Indicates an imminently hazardous situation that, if not avoided, will result in death or serious injury. Includes
hazards that are exposed when guards are removed.
Indicates a potentially hazardous situation that, if not avoided, could result in serious injury or death. Includes
hazards that are exposed when guards are removed.
Indicates a potentially hazardous situation that, if not avoided, could result in minor or moderate injury.
Indicates information about procedures that, if not observed, could result in damage to equipment or corruption
to and loss of data.
General 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.
Failure to heed could result in serious injury or death.
Do not open the indicator. All procedures that require work inside the indicator enclosure must be performed by qualified service
personnel only.
Do not allow minors (children) or inexperienced persons to operate this unit.
Do not operate without the system completely assembled.
Do not use for purposes other than weight taking.
Do not place fingers into slots or possible pinch points.
Do not use this product if any of the components are cracked.
Do not exceed the rated specification of the unit.
Do not make alterations or modifications to the unit.
Do not remove or obscure warning labels.
Do not submerge.
There is a risk of explosion if battery is replaced by an incorrect type.
EtherNet port is not intended for use on telecom network circuits that are subject to lightning or power faults.
If opening the unit, ensure the power cord is disconnected from the outlet.
DANGER
WARNING
CAUTION
IMPORTANT
WARNING

Installation
©Rice Lake Weighing Systems ● All Rights Reserved 3
2.0 Installation
Use the following steps to install the In-Motion Weighing Systems.
2.1 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.
2.2 Installation
Install the system taking into consideration the environment, the working direction (left/right) and the existing system, if
applicable.
1. Level the feet to ensure there is no gap between the floor and each foot. See Section 2.2.1 on page 4 for information
on leg and foot adjustment.
2. Set the gap between the weighing system’s belts as close as possible without touching, to ensure smooth conveyance
of product.
3. Loosen the overload stop bolts on the scale conveyor; there are four bolts, one on each corner of the scale spider
bracket. The scale will not weigh accurately if the bolts are not loosened.
Refer to Section 2.4 on page 6 for overload adjustment settings.
Figure 2-1. Overload Stop Bolt Location
4. Supply the specified voltage according to the included drawings. Only one input voltage is necessary to control the
system.
Do not run the In Motion Weighing Systems without all the guards, guides and shields in place and attached
where necessary.
Note
Overload Stop
Bolts
Overload
Stop Bolts
Spider Bracket
WARNING

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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..
Figure 2-2. Adjustable Leg Location (only one shown in Figure 2-2)
1. Use a forklift to move the unit to the desired location. Forklift pockets are available on the unit.
2. Using a 9/16 wrench, loosen the lower hardware assembly on each leg.
Figure 2-3. Upper and Lower Hardware Assembly
3. Loosen the upper hardware assembly and move the leg assembly down to desired hole configuration.
Upper Hardware Assembly
Lower Hardware Assembly

Installation
©Rice Lake Weighing Systems ● All Rights Reserved 5
4. For fine leg adjustment a six inch rod is located inside each leg extension. Loosen the two large nuts and adjust the
feet until the unit is level; tightening the nuts when the desired fine adjustment is achieved.
Figure 2-4. Fine Leg Adjustment (only one leg shown)
5. Tighten the lower hardware assembly to hold the legs and rod securely.
2.3 Recommended Auto Zero Settings
Rice Lake Weighing Systems recommends the following Auto Zero settings be used when setting up the conveyor scale.
2.3.1 ZTRKBND
Zero Track Band automatically zeros the scale when within the specified range if the weight is within the Stand Still Time
(SSTIME) and the Zero Range (ZRANGE) settings.
Example:
50 x 0.02 lb scale. Auto zero 0.50 lb. Take 0.50/0.02 = 25
25 is the number that will be entered.
2.3.2 Zero Range (ZRANGE)
Zero Range is the allowed percentage that can be zeroed. It can be set up to 100% (recommended range – 10-15%).
2.3.3 Motion Band (MOTBAND)
Motion Band sets the level (display divisions) at which scale motion is detected. Set to 2 for in-motion weighing.
2.3.4 Stand Still Time (SSTIME)
Stand Still Time is the length of time that the scale is out of motion. Set to 2 (200 ms) for in-motion weighing.
All of the parameters listed above must be set in the listed order for the auto zero feature to work along with using a
push zero or a forced zero between weights in the user program.
2.3.5Zeroing Between Weighments
Press Setup several times until Auto Zero displays. The time value that is entered is the time from when the product is weighed
to when the product is removed from the scale. 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.
Note

920i In-Motion Weighing System
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2.4 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.
1. Place a test weight of 5% over the scale capacity in the center of one quadrant of the conveyor platform. The weight
integrator should display a reading above the capacity or O-Cap.
Figure 2-5. Place Test Weight in Quadrant
2. Loosen the stop bolt jam nut corresponding to the quadrant supporting the test weight.
3. Adjust the overload stop bolt so that it contacts the overload stop block on the bottom of the frame and the integrator
reads slightly less than the applied weight.
4. Tighten the overload stop bolt jam nut.
Repeat steps 1-4 for each of the remaining quadrants of the scale.
2.5 Installation Checklist
Use the following checklist when setting up the In-Motion Weighing Systems.
2.5.1 Installation
___ When placing the conveyors, ensure all are aligned with 1/4'' spacing between transfers.
___ Ensure all conveyors and the weighing platform are level.
___ Ensure the feet are properly installed and anchored to the floor using a minimum of two anchors per conveyor in
opposite corners.
___ After leveling, be sure to set the jam nuts on the feet to hold in position and keep from moving.
2.5.2 Control Panel Wiring
___ Run motor cable from the infeed/outfeed conveyors to the appropriate terminals on the control panel (if applicable).
___ Wire peripheral devices (scanners, printers, metal detection) into the control panel (if applicable).
___ Connect the system power per electrical drawings (included).
Motor overloads and VFD are factory configured prior to shipping.
X
Scale Platform
Overload
Stop Bolt
Note

Installation
©Rice Lake Weighing Systems ● All Rights Reserved 7
2.5.3 Setting up the Scale
___ Lower the overload stops on each corner of the weighing platform
___ 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 6.
___ Re-enter configuration mode and return the number of grads to the previous recorded value.
___ Place a full capacity weight in the center of the scale and then on all four corners to verify that the weight is within the
permissible tolerance range for the system.
2.5.4 Component Tests
___ Verify that the photo eyes, when triggered, change the state of their respective relays per the electrical drawings.
___ Press the E-Stop softkey to make sure its respective relay changes states.
___ Log into the Motoweigh program with the user name 1 and press the More=> softkey. Then press the Conveyor Start
softkey.
___ The system conveyors should begin running. Verify that they are turning in the right direction. Swap the two phases if
they are not and adjust the VFD for the desired speed.
___ Observe the static weight display while the conveyors are running. Adjust the filter settings if necessary to stabilize
weight fluctuations.
2.5.5 Product Setup
___ Enter Setup —> Product Setup —> Add.
___ Follow on screen prompts to configure the checkweighing settings for the product being set up.
___ Enable the diagnostics, Setup —> More —> Diagnostics. When prompted, press Yes.
___ Using the monitor mode in iRev, connect a laptop to port 2 of the 920i indicator.
The Diagnostic mode prints all weight samples, plus the calculated weight to the terminal screen in iRev.
2.5.6 System Test
___ Press the Start softkey on the main menu to start operation.
___ Send a product across the weighing platform and observe the diagnostic data being sent to the laptop.
___ Based on the diagnostic data sent, make necessary adjustments to the photo eye positions and re-run product to verify.
___ The in-motion calculated weight must match the static weight of the actual product.
___ Observe the time required to reach the diverter and adjust the diverter values, if needed.
Note

920i In-Motion Weighing System
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3.0 Configuration
Softkeys and menus used to configure the In-Motion Checkweighing System are discussed in this section.
The scale sample rate must be set to 60 Hz. This is the default setting and should not be changed. A normally
closed photo eye must be used.
3.1 Security
Users must log in to the IMC. The default login name is Admin and there is no password until one is specified by the user.
Additional users can be added to the user database and assigned one of four security levels. Each increasing level of security
includes access to all features and functionality for the lower security levels.
3.1.1 Login Procedures
When the 920i is powered on, Enter Login Name is displayed.
Figure 3-1. Login Menu
1. Press the Up arrow. The character map is displayed.
2. Enter Admin using the indicator arrows to move the cursor to highlight the letters.
3. Press to add the highlighted letter to the prompt field.
If an incorrect letter is entered, press on the numeric keypad to delete it.
4. Once Admin is displayed, press the Down arrow until the cursor moves to the final letter in the prompt field.
5. Press to complete the login process.
Figure 3-2. Character Map
Security Level Authority
Operator Run products/view statistics; cannot access setup menu options
Supervisor Set up products/run reports; See Supervisor Menus on page 11
Maintenance Set up system features/functions; See Maintenance Menus on page 12
Administrator Access to all menus plus user setup, See Administrator Parameters on page 13
Table 3-1. Login Security Levels
Note
Home Cancel End
Enter Login Name:
=>
Note
Home Cancel End
=> ADMIN
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
a b c d e f g h i j k l m n o p q r s t u v w x y z
Sp ! # $ & ? @ ( ) < > + - * % = / \ “ . , : ; ‘ ^ _ ` | ~ [ ] { }

Configuration
©Rice Lake Weighing Systems ● All Rights Reserved 9
3.1.2 User Setup - Administrator Access
To setup users, access the main menu as the Administrator. A Setup softkey displays.
1. Press the Setup softkey to view the program menu.
2. Press the More => softkey until the Users softkey displays. Only administrators can access this feature. See
Administrator Parameters on page 13.
3. Press the Users softkey to access the list of users in the system.
• Press the Add softkey to enter the login name, password, and security level for a new user.
• Press the Edit softkey to change the password and security level for existing users.
• Press the Delete softkey to delete a user from the system. After logging out, the user is no longer be available.
• Press the Search softkey to enter a user name. If the user is found, it is displayed in the list. If it is not found, Login
Name Not Found is displayed.
The Administrator user name cannot be deleted from the system and the Administrator’s security level cannot
be changed.
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.
3.2 Products
Use the following section to add, edit, delete and search products.
3.2.1 Adding a Product
When adding a product, the user is prompted to enter a product ID, product description, product tare weight, units of weight to
use when weighing and the five zone ranges, as either a percentage or weight value. After adding a product, use the Calibrate
Product menu item to set up weighing delay durations.
Add a product using the 920i display softkeys.
Figure 3-3. 920i Main Menu
1. Press Setup softkey.
2. Press Products. The menu as in Figure 3-4.
Figure 3-4. Products Menu
3. Press the Add softkey. The Add Product parameters display. See Table 3-2 on page 10 for parameter descriptions.
Note
Start Select
Product Setup
Statistics More =>
07/31/2015 02:15PM
Add
SCALE #1
Delete Exit
Arrow keys: Up/Down = Scroll Left/Right = Page
Edit Search

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Access the character map by pressing the UP arrow on the 920i display. If an incorrect letter or number is
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.
Press Enter.
Edit a product description:
1. Press the Edit softkey.
2. Scroll through the menu parameters using the down arrow and make appropriate edits.
3. If no edit is to be made to a particular parameter, press Enter to advance to the next parameter in the list.
Delete a product:
1. Select product to be deleted.
2. Press the Delete softkey
3. Press Yes to delete.
Search for a product:
1. Press the Search softkey.
2. Enter the Product ID.
3. Press to access the product.
Parameter Description
ID Product ID – one to eight characters
Description Product description – up to 20 characters; Can be numeric or alpha-numeric
Units Units of measure – primary, secondary or tertiary
Tare Weight System tare value while using the product in a run
TO2 Weights above this value will be considered to be in the TO2 range
TO1 Weights above this value and below TO2 are considered to be in high range; Set the value to the same as TO2
to disable this range
Target Target weight – must be specified if the system tolerance type is either offset or percent
TU1 Weights below this value and above TU2 are considered in the TU1 range; Set the value the same as the TU2
value to disable range
TU2 Weights below this value will be considered to be in the TU2 range
Adjust Percent Adjusts the weight of every item by a set percentage; Zero is recommended
Example: If the system is consistently reading 10% low, adjust percent to 10% to compensate.
Reject Action Stop or divert for rejected projects
Reject Delay The delay (in milliseconds) after a product is weighed before turning on the reject diverter
Reject On Time The amount of time (in milliseconds) to engage the diverter
TO2 Reject If yes, the item is rejected if the weight falls in the TO2 range
TO1 Reject If yes, the item is rejected if the weight falls in the TO1 range
TU1 Reject If yes, the item is rejected if the weight falls in the TU1 range
TU2 Reject If yes, the item is rejected if the weight falls in the TU2 range
Table 3-2. Product Parameters
Note

Configuration
©Rice Lake Weighing Systems ● All Rights Reserved 11
3.3 Menus and Softkeys
The main menu consists of seven softkeys. Pressing the More=> softkey displays the last two softkeys.
Figure 3-5. Main Menu 1
3.3.1 Setup Softkey
Press the Setup softkey to access the Setup menu. This menu consists of seven sub-menus.
Supervisor Menus
Figure 3-6. Setup Menu – Supervisor Parameters
Softkey Description
Start Press Start to begin the conveyor, the product is detected and weighed
Statistics Displays product statistics, these statistics are updated in real time during the weighing process
Note: The standard deviation is calculated for at least the last 5000 products
Select Product Product list, use the Up/Down arrows to highlight the desired product, then press Select Product
A search for a product can also be done from this display by pressing the Search softkey
Conveyor On/Off Starts and stops the weight conveyor, this does not check-weigh products crossing the scale section
Logout Logs out of the system
More=> Toggles between parameters
Setup Enters the setup menu, not available to operators
Table 3-3. Main Menu Softkeys
Softkey Description
Products Accesses the product database list, products can be added, edited, deleted, or searched
Calibrate Product Allows the user to calibrate each product; See Section 4.0 on page 14 for calibration details
Print Reports Allows the user to print a user, product, zone, or parameter report. See Section 5.0 on page 19
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
Conveyor
On/Off Logout More => Setup
Start Statistics Select
Product More => Setup
Press More=> to view other
softkeys
Press More=> to return to
previous softkeys
Clear
Statistics
Program
Version
Set
Time/Date More => Exit
Products Calibrate
Product
Print
Reports More => Exit
Press More=> to view more
softkeys
Press More=> to return to
previous softkeys

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Maintenance Menus
Figure 3-7. Setup Menu – Maintenance Parameters
Softkey Description
Conveyor Setup Enter the start conveyor output; changing this output may require changes in the 920i configuration file to set up digital
I/O points
Product Detection
Define the start data collection input, the stop data collection input, the maximum photo-eye on time (in milliseconds),
photo eye alarm output, and photo eye alarm duration (in milliseconds)
Setting the maximum photo eye On time to 0 disables the photo eye alarm feature
Changing the inputs or output may require changes in the 920i configuration file to set up digital I/O points
Flicker time is set up under this parameter and is the time in milliseconds (ms) after which a product has been detected,
a new product cannot be detected
Reject Setup Define the reject output as well as product defect input 1 and 2; changing the inputs or output may require changes in
the 920i configuration file to set up digital I/O points
Tolerance Setup
Define the output relays used to indicate the 5 zone ranges for each product check weighed; out of tolerance alarm out-
put, out of tolerance alarm duration, and zone type (by weight or by percent of target) are also set here
Note: When editing the zone type, press Enter to keep the current value
Overrun Setup
Set the overrun photo eye input, the overrun alarm output and the overrun alarm duration
Set the alarm duration to 0 to disable; if an overrun is detected, the overrun alarm signals the error, however the system
attempts to continue the weighing process
Single/Dual Pho-
toeyes
Toggles from single photo-eye to dual photo-eyes; the displayed softkey is the number of photo eyes that will be used in
the weighing process
A single photo eye starts data collection input only; dual photo eyes uses start and stop data collection as well as the
overrun input, if enabled
Note: Dual photo eyes are the preferred method
More=> Accesses next parameter display
Exit Returns the user to the main menu
Table 3-5. Maintenance Softkeys
Tolerance
Setup
Overrun
Setup
Dual
Photo eyes More => Exit
Conveyor
Setup
Product
Detection Reject Setup More => Exit

Configuration
©Rice Lake Weighing Systems ● All Rights Reserved 13
General Parameters
Figure 3-8. General Setup Menus
Administrator Parameters
Figure 3-9. Administration Menu
Softkey Description
E-Stop Setup Set the E-Stop input; setting the input to 0 disables the feature
Changing the input may require changes in the 920i configuration file to set up digital I/O points
Auto-Zero
Enter a value to specify the auto-zero period (in milliseconds); it begins when the product is finished and can last
until the next product reaches the photo eye; use this feature to zero the scale between weighments, if there are
drifting issues or difficulties obtaining an accurate weighment
Auto-Cal Adjustment
Fine tune the delay before sample time and sample time settings; this is by a percentage of the total sample time
during the auto calibration of a single photo eye system
Default rate is 20%, valid values 0-49%
EtherNet IP Set the duration of the EtherNet IP output of Slot 0, Bit 1; set to 0 to disable
Stable Read Division Key in a value for the number of stable read divisions; default is 15
Note: It is not recommended to change this parameter
Std Dev. Queue Lgth. The number of products included in the calculation of the standard deviation
Quality Check Count Define the number of consecutive products to divert during a quality check
Require Defect Input
1
When set to Yes, a pulse on defect input 1 means the product is acceptable; when set to No, a pulse on defect input
1 means the product is not acceptable and will be rejected
Product Data Format Configure the real-time data string on port 3; this string can be customized using tokens, delimiters or static text;
See Section 7.2 on page 28 on page for further information
More=> Access next parameter display
Exit Returns to the main menu
Table 3-6. Setup Menu 5 Softkeys and Descriptions
Softkey Description
Users Access the user database list; users can be added, edited, and deleted
Diagnostics Dump weight samples from a weighment out of port 2 during setup or for troubleshooting
Transmit Weights When set to Yes, the custom serial string is sent out port 3 after each item is weighed
More=> Return to the supervisor parameters
Exit Return to the main menu
Table 3-7. Administration Softkeys
ReqDefect
Input 1 More => Exit
Prod. Data
Format
Quality
Check Count
Stable Read
Division More => Exit
Std Dev.
Queue Lgth.
EtherNet IP
Auto
Zero More => Exit
Auto-Cal
Adjustment
E-Stop
Setup
Users Diagnostics More => Exit
Transmit
Weights

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4.0 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 Start, the conveyor begins and the photo-eye detects product. At the end of five seconds, the system alerts the
user to the time at which the detection input was cleared. A graph is displayed showing the timing of the product weight across
the five seconds. The user can then set the delay before sampling time and sample duration by viewing the graph weight and
product detection details.
Calibrate each product individually. A normally closed photo eye must be used.
4.1 Single Photo Eye Product Calibration
1. Log in as the administrator (Section 3.1 on page 8). The main menu is displayed.
Figure 4-1. Main Menu
2. Press the Setup softkey to access additional parameters.
3. Press the Calibrate Product softkey. The Calibration menu is displayed.
Figure 4-2. Calibration Menu
4. Press Up and Down arrow keys to select the desired product.
5. Press the Select softkey when desired product is between the arrows. The Calibration menu displays.
Note
Start Select
Product Setup
Statistics More =>
07/31/2015 08:16 AM
Select
Scale #1
Search Cancel
Arrow Keys: Up/Down = Scroll Left/Right = Page
Product 1
Product 2

Calibration
© Rice Lake Weighing Systems ● All Rights Reserved 15
Figure 4-3. Calibration Menu
The Delay Before Sample and Sample Duration softkeys should be used only for fine tuning after auto calibration. If
an additional auto calibration is performed after these values are set, they are reset to zero.
6. Press the Start softkey to start auto calibration. The item moves past the photo-eye, across the belt and is auto
calibrated. A graph is displayed showing the timing of the product weight across five seconds.
Figure 4-4. Distribution Curve Graph
Softkey Description
Start Begins in-motion calibration process
Delay Before
Sample
Amount of time (milliseconds) after an item completely passes the photo eye before weight is measured
Useful when the photo-eye is mounted ahead of the belt
Sample Duration Sample duration (milliseconds)
Min. Detect
Duration
Time (milliseconds), that the photo eye must stay on in order to count as a product;
If 0 is selected, the feature is disabled
Exit Returns to main menu
Table 4-1. Calibration Screen Softkeys and Descriptions
07/31/2015 08:17 AM
Start
Scale #1
Sample
Duration Exit
Delay: 500 Duration: 300 Min. Detect 0
Delay Before
Sample
0 ms 1200 ms 2400 ms 3600 ms 4800 ms 6000 ms
Min. Detect
Duration
Note
07/31/2015 08:18 AM
Start
Scale #1
Sample
Duration Exit
Delay: 500 Duration: 300 Min. Detect 0
Delay Before
Sample
0 ms 1200 ms 2400 ms 3600 ms 4800 ms 6000 ms
Detection at 2016 milliseconds
Min. Detect
Duration
Item is entirely on
scale
Item enters
scale
Begin weight
sample
Item leaves scale
End weight
sample

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If there is no End weight sample line or it is near the five second marker, the sample time may be too long.
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.
7. Set a delay before sample value (in milliseconds), if the photo eye is mounted ahead of the belt.
Figure 4-5. Distribution Curve With Delay Before Sampling
Once the graph displays a distribution curve representing the product entering and leaving the scale, calibration is successful.
4.1.1 Optimal Graph Adjustments
The distribution curve should be symmetrical; there should be an arc as the item enters the belt and an arc as it leaves.
Figure 4-4 and Figure 4-5 show an arc as the product enters the belt, but not the full arc as the product leaves.
This works, but it leaves little room for unexpected variables. Since the weighment is measured until the product is almost off
the belt, an inaccurate weighment is more likely. Taking the weight at the center of the distribution curve is preferred.
Figure 4-6 is an example of an optimal distribution curve.
Figure 4-6. Optimal Distribution Curve
Note
07/31/2015 08:18 AM
Start
Scale #1
Sample
Duration Exit
Delay Before Sampling: 1000 Sample Duration: 2000
Delay Before
Sample
0 ms 1000 ms 2000 ms 3000 ms 4000 ms 5000 ms
Detection at 2016 milliseconds
Min. Detect
Duration
Delay before
sampling begins
End weight sample
Begin weight
sample
07/31/2015 08:18 AM
Start
Scale #1
Sample
Duration Exit
Delay Before Sampling: 500 Sample Duration: 2000
Delay Before
Sample
0 ms 1000 ms 2000 ms 3000 ms 4000 ms 5000 ms
Detection at 1516 milliseconds
Min. Detect
Duration
Item is entirely off
scale