Related Manuals for Future Design FDC-L91
Summarization of Contents
Chapter 1 Overview
1-1 General
Provides a general overview of the L91 limit control unit's features and capabilities.
1-2 Ordering Code
Details the coding system for specifying and ordering the L91 unit and its configurations.
1-3 Programming Port
Explains the location and use of the programming port for off-line setup and calibration.
1-4 Keys and Display
Describes the functions of the front panel keys and the display indicators and modes.
1-5 Menu Overview
Outlines the structure of the setup mode menu and available parameters.
HIGH LIMIT OPERATION
Explains the unit's operation when configured for high limit control.
LOW LIMIT OPERATION
Explains the unit's operation when configured for low limit control.
HIGH/LOW LIMIT OPERATION
Explains the unit's operation when configured for both high and low limit control.
1-7 Parameter Descriptions
Details the notation, description, range, and default values for various parameters.
Chapter 2 Installation
2-1 Unpacking
Instructions for safely unpacking and inspecting the unit upon receipt.
2-2 Mounting
Provides guidance on panel cutout dimensions and mounting the unit.
2-3 Wiring Precautions
Essential safety and best practice guidelines for wiring the unit.
2-4 Power Wiring
Details how to connect the power supply to the unit, including voltage considerations.
2-5 Sensor Installation Guidelines
Best practices for installing sensors to ensure accurate measurements and optimal performance.
2-6 Thermocouple Input Wiring
Specific instructions for wiring thermocouple inputs, including cable selection and polarity.
2-7 RTD Input Wiring
Instructions for connecting RTD sensors, covering both three-wire and two-wire configurations.
2-8 Linear DC Input Wiring
Wiring diagrams for linear voltage and current inputs.
2-9 Event Input wiring
Details on connecting event inputs, supporting switch or open collector signals.
2-10 Output 1 Wiring
Wiring configurations for Output 1, including relay, triac, and pulsed voltage outputs.
2-11 Output 2 Wiring
Wiring configurations for Output 2, covering relay, pulsed voltage, and DC power supply outputs.
2-12 RS-485
Wiring instructions for RS-485 communication interface.
2-13 Retransmission Output
Information on configuring and wiring for analog retransmission outputs.
Chapter 3 Programming
3-1 Process Input
Configuration of sensor and signal types, units, and scaling for process inputs.
3-2 Limit Control
Explanation of hysteresis setting (O1.HY) to prevent relay jitter.
3-3 Set Point Range
Defines parameters for setting upper and lower limits for setpoints HSP1 and LSP1.
3-4 PV Shift
How to adjust the displayed Process Value (PV) using the SHIF parameter.
3-5 Digital Filter
Configuration of the programmable low-pass filter (FILT) to stabilize unstable process values.
3-6 Process Alarms
Setup for process alarms, including trigger levels, hysteresis, and alarm modes.
3-7 RS-485 Communication
Guidelines for setting up PC communication via RS-485, including protocol and addressing.
3-8 Display Mode
How to configure the display format for normal, alarm, or error conditions.
3-9 Signal Conditioner DC Power Supply
Details on using the unit's DC power supply output for sensors and transmitters.
3-10 Remote Reset
Configuration for using terminals as a remote reset input.
3-11 Remote Lock
Configuration for using terminals as a remote lock to prevent parameter changes.
3-12 Limit Annunciator
How to configure Output 2 as a limit annunciator.
3-13 Reference Data
Accessing and understanding reference data like historical PV and abnormal time.
Chapter 6 Specifications
Power
Electrical power requirements and consumption specifications for the unit.
Input
Specifications related to input resolution, sampling rate, and sensor lead resistance effects.
Data Communication
Technical specifications for the RS-485 communication interface.
Event Input
Characteristics and functions of the event input feature.
Output 1 / Output 2
Specifications for relay, pulsed voltage, and triac outputs for Output 1 and 2.
Triac (SSR) Output
Detailed specifications for the Triac (SSR) output type.
DC Voltage Supply Characteristics
Specifications for the DC voltage supply outputs available on Output 2.
Analog Retransmission
Performance characteristics and accuracy of analog retransmission outputs.
User Interface
Details about the LED displays, keypad, and ports.
Limit Control
Summary of the limit control modes available.
Digital Filter
Specifications for the digital filter function.
Environmental & Physical
Operating conditions, dimensions, weight, and physical characteristics.
Approval Standards
List of safety and EMC standards the unit complies with.
Warranty and Return Statement
Warranty
Details the warranty period and coverage for functional defects.
Limitations
Outlines the limitations of the manufacturer's warranty and user responsibilities.
Return Material Authorization
Procedure for obtaining authorization before returning products.
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