red lion LIBC Series - User Manual

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 ABILITY TO LOCK OUT FRONT PANEL FUNCTIONS
 SEALED FRONT PANEL CONSTRUCTION (NEMA 4/IP65)
 ONE OR TWO PRESET VERSIONS
 0.5" HIGH LIQUID CRYSTAL DISPLAY OR 0.4" HIGH LED DISPLAY
 ACCEPTS INPUT COUNT RATE UP TO 2500 CPS
 BI-DIRECTIONAL COUNTING
 SOLID-STATE CURRENT SINK OUTPUT(S)
 FORM C RELAY OUTPUT(S)
 PROGRAMMABLE TIMED OUTPUT (0.01 sec to 99.99 sec.)
 SIMPLE FRONT PANEL FOR PROGRAMMING EASE
 FRONT PANEL PROGRAMMABLE DECIMAL POINTS
 MEETS DIN PANEL MOUNT SPECIFICATIONS
 REMOTE RESET CAPABILITY
 NON-VOLATILE MEMORY (E
2
PROM)
 ON-LINE SELF-TEST
DESCRIPTION
The Libra Series of presettable counters is an economical and reliable solution
to one or two preset level requirements. The LIBC1 and LIBC1E are the single
preset versions and the LIBC2 and LIBC2E are the dual preset versions. All four
units have a solid-state output and a Form C relay output for each preset. These
units feature input configuration programmability, a full complement of control
inputs, programmable timed outputs, non-volatile memory, and many other
features which will satisfy most any single or dual preset level requirement.
The Libra counters have two main counting actions, Reset to Zero (RTZ) and
Reset to Preset (RTP). With RTZ, the counter resets to zero and counts up (if
UP/DN terminal is at high level) and activates the outputs when the preset
value(s) are reached. When RTP is used, the unit starts at the preset value and
counts down (if the UP/DN terminal is at low level) and activates the output
when zero is reached. For the 2-preset version, the count starts at preset 2 and
counts toward zero. Output 1 fires when preset 1 value is reached and output 2
fires when the count reaches zero. There are eight modes of operation for the
single preset unit and sixteen modes of operation for the dual preset unit.
The timed output is programmed through the front panel buttons and can be
programmed from 0.01 sec. to 99.99 sec. (The unit’s timed output is set at the
factory to be 0.1 sec.) The Libra counters have an internal non-volatile memory
device which eliminates the need for battery back-up. When input power is
removed, this device will maintain all data necessary for system operation. A
Program Disable terminal is available, which is used to prevent accidental
changes or tampering by unauthorized personnel to the preset(s) or timed output
value(s). The front panel reset button can also be enabled or disabled by a rear
panel DIP switch. These counters also have an on-line self-test, which checks
all display driver and micro-processor hardware. The self-test can be run at any
time without losing counts or missing a preset value.
Power, input, and output connections are made via removable terminal strips
located at the rear of the unit. These strips can accept one #14 AWG stripped
wire. DIP switches at the rear of the unit are used to program the input
configuration and to set the desired operating modes.
The Libra Series counters have a metal die-cast front bezel, which is sealed,
and meets NEMA 4/IP65 specifications for wash-down and/or dust when
properly installed. Mounting clips are provided for easy panel installation.
SAFETY SUMMARY
All safety related regulations, local codes and instructions that appear in the
manual or on equipment must be observed to ensure personal safety and to
prevent damage to either the instrument or equipment connected to it. If
equipment is used in a manner not specified by the manufacturer, the protection
provided by the equipment may be impaired.
Do not use this unit to directly command motors, valves, or other actuators
not equipped with safeguards. To do so, can be potentially harmful to persons
or equipment in the event of a fault to the unit.
MODEL LIBC - LIBRA SERIES COUNTERS (LCD & LED)
DIMENSIONS In inches (mm)
Note: Recommended minimum clearance (behind the panel) for
mounting clip installation is 2.7" (69 mm) H X 4.5" (114 mm) W.
CAUTION: Read complete instructions
prior to installation
and operation of the unit.
CAUTION: Risk of electric shock.
Bulletin No. LIBC-J
Drawing No. LP0103
Released 10/04
Tel +1 (717) 767-6511
Fax +1 (717) 764-0839
www.redlion.net
LIBC-j.QXD 10/26/04 10:52 AM Page B1

Summary

MODEL LIBC - LIBRA SERIES COUNTERS (LCD & LED)

DESCRIPTION

Overview of the Libra Series presettable counters, highlighting their economical and reliable design for various preset requirements.

DIMENSIONS

Provides physical dimensions in inches (mm) and recommended panel cut-out for the Libra Series counters.

SPECIFICATIONS

SAFETY SUMMARY

Essential safety guidelines and warnings for the installation and operation of the Libra Series counters.

ENVIRONMENTAL CONDITIONS

Details operating and storage temperature, humidity, and altitude limits for the Libra Series counters.

MODES OF OPERATION

SINGLE PRESET COUNTER MODES

Describes all operational modes for single preset Libra counters, detailing output behavior and reset functions.

DUAL PRESET COUNTER MODES

Details operational modes for dual preset Libra counters, including output sequencing and reset options.

INPUT SET-UP AND MODE SELECTION

DIP SWITCH CONFIGURATION

Explanation of DIP switch settings for input configuration (SNK/SRC, HI/LO FRQ, HI/LO BIAS) and reset enable.

UNIT OPERATION AND CONNECTIONS

POWER-UP DIAGNOSTICS & DECIMAL POINT ENTRY

Describes power-up diagnostics and procedures for entering decimal points on the display.

DC;AC POWER, INPUT;OUTPUT TERMINAL CONNECTIONS

Details terminal block connections for DC power, AC power, inputs, and outputs for Libra Series counters.

EMC INSTALLATION GUIDELINES

Provides guidelines for installing Libra Series counters to ensure electromagnetic compatibility and minimize interference.

FRONT PANEL FUNCTIONS AND OPERATION

FRONT PANEL BUTTON DESCRIPTIONS

Explanation of the functions of the front panel buttons (Reset, Preset 1/2, Enter) on Libra Series counters.

INITIAL POWER-UP & FACTORY SETTINGS

Details the default factory settings for presets, count value, and timed output for Libra Series counters.

SELF-TEST PROCEDURE

Instructions on how to perform the built-in self-test without losing data or interfering with operation.

SENSOR INTERFACING AND INSTALLATION

SENSOR OUTPUT CONFIGURATIONS

Illustrates connection setups for various sensor output types (current source/sink, EF, CMOS, TTL).

INSTALLATION ENVIRONMENT AND PANEL MOUNTING

Guidelines for optimal installation environment and how to mount the unit into a panel.

APPLICATION EXAMPLES AND ORDERING INFORMATION

BOX STACKING CONTROL APPLICATION

Describes a typical application for controlling a conveyor belt for box stacking using a single preset counter.

PAPER ROLL MANUFACTURING PROCESS APPLICATION

Illustrates a dual preset counter application for controlling a paper roll manufacturing process.

ORDERING INFORMATION

Lists model numbers and part numbers for available supply voltages for Libra Series counters.

Overview

1. Function Description
2. Technical Specifications
3. Usage Features
4. Maintenance Features

The Red Lion LIBC Libra Series Counters are economical and reliable devices designed for single or dual preset level requirements, available in LCD and LED display versions. These counters are capable of bi-directional counting and accept input count rates up to 2500 counts per second (CPS).

Function Description

The Libra Series Counters offer two main counting actions: Reset to Zero (RTZ) and Reset to Preset (RTP). In RTZ mode, the counter resets to zero and counts up, activating outputs when preset values are reached. In RTP mode, the unit starts at the preset value and counts down, activating outputs when zero is reached. For dual preset versions, output 1 fires when preset 1 is reached, and output 2 fires when the count reaches zero. The single preset unit offers eight modes of operation, while the dual preset unit provides sixteen modes.

The devices feature solid-state current sink outputs and Form C relay outputs for each preset. A programmable timed output, adjustable from 0.01 seconds to 99.99 seconds (factory set to 0.1 seconds), is available. Front panel buttons allow for easy programming, including decimal point selection.

A key feature is the ability to lock out front panel functions via a Program Disable terminal, preventing unauthorized changes to preset or timed output values. The front panel reset button can be enabled or disabled via a rear panel DIP switch. The counters also include an on-line self-test function that checks display drivers and microprocessor hardware without losing counts or missing preset values.

Non-volatile memory (E2PROM) eliminates the need for battery backup, retaining all data necessary for system operation even when input power is removed. This memory is designed for at least 100,000 power down cycles and can retain data for up to 10 years.

Technical Specifications

Display:

• 0.5" (12.7 mm) high Liquid Crystal Display (LCD)
• 0.4" (10.2 mm) high Light Emitting Diode (LED)

Power Requirements:

• AC Operation: 115/230 VAC (±10%), 50/60 Hz, 6 VA (LCD) or 9 VA (LED)
• DC Operation: 11 to 14 VDC @ 0.2 A max (LCD) or 0.3 A max (LED)

Sensor Power: +10 to 16 VDC @ 150 mA

Count Input:

• Switch selectable for various sources: switch contacts, CMOS/TTL circuits, RLC sensors.
• Current Sourcing: 3.9 kΩ pull-down load (max input voltage 28 VDC @ 7 mA)
• Current Sinking: 7.8 kΩ pull-up load (max sensor current 1.6 mA)
• Debounce: Damping capacitor for switch contact debounce (100 Hz max, 5 msec min pulse widths)
• Lo Bias: Input Trigger levels VIL = 1.5 V, VIH = 3.75 V
• Hi Bias: Input Trigger levels VIL = 5.5 V, VIH = 7.5 V (±10% @ 12 VDC sensor voltage)

Maximum Count Rates:

• High Frequency: 2.5 KHz max for electronic sensors (50 µsec pulse widths, 400 µsec min period)
• Low Frequency: 100 Hz for switch contact closures

Control Inputs:

• Remote Reset: Active low (VIL = 0.5 V max), 10 kΩ pull-up resistor (ISNK = 0.5 mA), 10 msec response time.
• Program Disable: Active low (VIL = 0.5 V max), 10 kΩ pull-up resistor (ISNK = 0.5 mA).
• Up/Dn Control: Active low (VIL = 0.5 V max), 10 kΩ pull-up resistor (ISNK = 0.5 mA), 150 µsec response time.

Outputs:

• Solid-State: NPN open collector transistors, ISNK = 100 mA max, VOH = 30 VDC max, VOL = 1 VDC max @ 100 mA.
• Relay(s): Form C contacts, 5 amps @ 120/240 VAC, 28 VDC (resistive load), 1/8 H.P. @ 120 VAC (inductive load). Operate time 5 msec nominal, release time 3 msec nominal.
• Relay Life Expectancy: 100,000 cycles at max. rating.

Memory Retention: E2PROM, 100,000 power down cycles, 10 years data retention.

Environmental Conditions:

• Operating Temperature: 0 to 50°C
• Storage Temperature: -40 to 70°C
• Operating and Storage Humidity: 85% max (non-condensing) from 0 to 50°C
• Altitude: Up to 2000 meters

Construction: Metal die-cast bezel with black, high impact plastic insert. Meets NEMA 4/IP65 for indoor use.

Weight: 1.5 lbs (0.68 kg) [LCD], 1.75 lbs (0.79 kg) [LED].

Usage Features

The Libra counters are designed for ease of use with a simple front panel for programming. Connections are made via removable terminal strips at the rear, accepting one #14 AWG stripped wire. DIP switches on the rear are used to program input configuration and operating modes.

The unit's on-line self-test allows for verification of display and microprocessor hardware without interrupting counting or losing preset values. This test cycles through digits, displays mode switch settings, and allows for output testing.

Decimal points can be entered into the display via front panel buttons. Preset values and timed output values can be easily changed using the front panel buttons, with changes taking effect immediately.

Maintenance Features

The sealed front panel construction (NEMA 4/IP65) ensures protection against wash-down and dust when properly installed. Mounting clips are provided for easy panel installation. The bezel should be cleaned with a soft cloth and neutral soap product; solvents should not be used.

For safety, all local codes and instructions must be observed. The unit should not be used to directly command motors, valves, or other actuators without safeguards, as this could be harmful. In high EMI environments, proper installation methods, including shielded cables, external EMI suppression devices (ferrite cores, line filters), and proper cable routing, are recommended.

red lion LIBC Series Specifications

General

Brand	red lion
Model	LIBC Series
Category	Cash Counter
Language	English