Rice Lake Legend 480-2A, Technical Manual

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2 480 Legend Series
1.2 Overview
The 480 is a single-channel digital weight indicator housed in a NEMA Type 4X/IP66-rated stainless steel
enclosure. The indicator front panel consists of a large (.8 in/20 mm), six-digit, seven-segment LED display, with a
seven-button keypad (
480 ) or an 18-button full numeric keypad ( 480 Plus).
Features
• Auto switching AC power supply 115 VAC to 230 VAC (50-60 Hz)
• Drives up to ten 350 ohm

or twenty 700 ohm load cells
• Supports four and six wire load cell connections
• Two communications ports with demand or continuous (COM 2 only) outputs
• Unit ID, operator can enter up to six numeric digits
• Accumulator with report and clear
• Time and date
• Audit trail tracking
• Optional Ethernet/USB connects to PC or printer in operation mode, or flash drive to save/load
configuration
• Optional analog output module provides 0–10/2-10 VDC or 0–20/4–20 mA tracking of gross/net weight
• Optional digital I/O card, four outputs/two inputs for setpoints and key functions
Supported Applications
• Custom Ticket Printing: gross, net and setpoint format can be customized up to 300 characters and print
time and date, unit id and consecutive ticket number.
• Basic Weighing: Gross or net mode with operator menu to other functions.
• Accumulation: Weights are totaled, with armed print function.
• Batching: Up to eight batch steps with latched or continuous outputs for gross, net or delay setpoint.
Actions include trip high or low, wait for standstill, print, accumulate and tare.
• Keyed Tare: Preset tare value can be entered when the gross weight is at zero.
• Local/Remote: Remote unit displays weight and transmits key press commands to the local unit.
1.3 Operating Modes
The 480 has four modes of operation.
Weigh Mode
Weigh mode is the default mode of the indicator. The indicator displays gross or net weights as required, using the
annunciators described in Section 1.6 on page 4 to indicate scale status and the type of weight value displayed.
Configuration Mode
Most of the procedures described in this manual, including calibration, require the indicator to be in configuration
mode.
To enter configuration mode:
1. Remove the setup switch access screw from the back of the enclosure. See Figure 2-1 on page 10.
2. Insert a non-conductive tool into the access hole and press the configuration switch. Indicator display
changes to show
CONFIG
.
User Menu Setup Mode
The user menu setup mode is used to access the accumulator functions, audit trail, display the tare, unit id, time and
date, setpoints, data communications parameters, print formats and view the firmware version.
It is accessible by pressing the
Menu
key on the front panel.
See Section 3.1 for more information about the user setup mode.
Test Mode
Test mode provides a number of diagnostic functions for the 480 indicator. See Section 9.13 on page 70 for more
information about entering and using test mode.