Iskra PFC max 12 User Manual

Power factor regulators

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User's manual
POWER FACTOR REGULATORS
PFC max 6 / PFC max 12

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Summarization of Contents

Introduction and Safety Recommendations
General Safety Precautions
Ensures installation and maintenance by trained staff, adhering to standards and manufacturer conditions for user safety.
Critical Safety Warnings
Highlights dangers of electric shock from charged capacitors during maintenance and the need for power disconnection and waiting periods.
Initial Setup and Device Information
Delivery Spot Check
Procedure for verifying equipment integrity and order accuracy after unpacking.
Initial Device Startup Screen
Description of the initial screen display showing the device version code upon power connection.
Product Definitions and Characteristics
Four Quadrant Regulator Definition
Describes regulators capable of measuring and controlling power flow in both forward and reverse directions.
FCP Program Functionality
Explains the FCP program's optimization of switching operations and stage equalization using FIFO.
Distinguishing Stages and Steps
Defines STAGE as a capacitor group and STEP as the minimum reactive power fraction in the PF correction equipment.
Stages Ratio Program Types
Details various patterns for capacitor stage power ratings, e.g., 1:1:1, 1:2:2.
General Characteristics
PFC Max Model Differences
Highlights the distinction between PFC max 6 and PFC max 12 based on the number of output relays.
Key Product Features
Lists major features like FCP regulation, wide switching programs, four quadrant control, and LCD display.
Four Quadrant Measurement Illustration
Visual representation of power signs in four quadrants, indicating inductive, capacitive, exported, and imported power.
Front Panel Interface
Front Panel Components Overview
Identifies key elements of the regulator's front panel, including the screen and navigation keys.
Screen Display Elements
Details the information displayed on the screen, such as cosφ, C/K, THD, and program settings.
Configurable Parameters Display
Lists the parameters that can be configured via the front panel interface.
Navigation Key Functions
Illustrates the operation and function of the navigation keys for interacting with the device.
Display Screen and Error Information
Display Screen and Icons
Describes the 3-digit x 7-segment LCD screen and status icons for regulator information.
LED Indicators and Their Meaning
Explains the function of the RUN LED and the x10 Ip LED for indicating operating status.
Measured Parameters Display
Lists parameters like cosφ, current, voltage, and THD viewable in normal RUN mode.
Error Messages and Codes
Details possible error codes displayed on the screen and their descriptions for troubleshooting.
Regulator Status and Alarm Relay
Error Codes E03, E04, E05
Provides descriptions for under-compensation, overcurrent, and overvoltage errors.
Alarm Relay Configuration
Explains the automatic assignment and function of relay 6 or 12 as an alarm relay.
Regulator Status Modes
Defines the two primary operating statuses: Normal/RUN and Set-up/Adjustment.
Key Functions by Operating Status
Key Functions in Normal RUN Mode
Details manual stage connection/disconnection and entering set-up mode from RUN.
Key Functions in SET-UP Mode
Explains how to navigate menus, increment/decrement values, and save changes in set-up.
Installation and Technical Data
Technical Specifications Summary
Presents key technical data including supply voltage, current measurement, power consumption, and standards.
Reference Standards and Safety Class
Lists applicable EN and UL standards and specifies the safety and insulation class.
Device Installation Procedures
Protection Degree and Environment
Specifies IP ratings for protection degree and admissible operating environment conditions.
Mechanical Mounting Requirements
Details the fitting hole specifications for mounting the device onto a cabinet front door.
Pre-Connection Checks and Warnings
Emphasizes critical safety checks before connecting power, especially regarding charged capacitors.
Current Transformer (CT) Installation
Guides on the external installation of a CT for current sensing, including ratio and placement.
Connection Details and Cabling
Correct vs. Incorrect CT Connections
Illustrates proper and improper placements of the current transformer (CT) and their operational consequences.
Cabling and Protection Guidelines
Specifies required cable cross-sections and protection methods for supply and control circuits.
Wiring Schematics and Notes
PFC max 6 Connection Schematic
Provides the detailed wiring diagram for the PFC max 6 model, showing terminal connections.
PFC max 12 Connection Schematic
Provides the detailed wiring diagram for the PFC max 12 model, showing terminal connections.
PFC max 12 COM Terminal Note
Important instruction regarding the external connection of COM terminals for PFC max 12 devices.
Configurable Parameters Overview
Setting Target Power Factor (cosφ)
Allows adjustment of the desired power factor in the installation, from 0.85 inductive to 0.95 capacitive.
Smaller Capacitor Step (C/K)
Defines the C/K parameter representing reactive current of the smallest capacitor step.
C/K Values Table
Presents a table of C/K values based on CT ratio, capacitor power, and supply voltage.
Parameter Calculations and Settings
Calculating C/K Parameter
Provides the formula and an example for calculating the C/K parameter for non-standard conditions.
Configuring Capacitor Stage Powers
Explains setting capacitor stage powers based on base step multiples and defined programs.
Available Stage Configuration Programs
Lists the different stage configuration programs (e.g., 1:1:1, 1:2:2) available for PFC max devices.
Advanced Configuration Options
Setting Stage Delay Times
Configures the delay times (Tc) between stage connections/disconnections and re-connection (Tr).
Selecting Number of Stages
Allows the user to select the total number of capacitor stages for the PF compensation equipment.
Phase Angle Setting
Adapts the regulator to different voltage and current measurement connections for accuracy.
Phase Shift Options Table
Details the various V-I phase shift settings (T1-T6) for different wiring configurations.
Setup Menu and Procedures
Programming CT Primary Current
Enables setting the primary rated current of the current transformer for accurate measurement.
Accessing the Set-Up Menu
Describes the procedure to enter the device's configuration menu using a long key press.
Set-Up Navigation and Controls
Set-Up Menu Navigation
Provides a visual guide to navigating through the various configurable parameters in the set-up menu.
Parameter Adjustment Controls
Explains how to increase values, move between digits, and change parameters using navigation keys.
Set-Up Mode Timeout Warning
Informs users that the device returns to RUN mode if no key is pressed for 3 minutes.
Run Mode Operations and Status
Normal RUN Status
Device operates normally, performing automatic PF regulation and allowing parameter access.
Alarm Status
Indicates an error condition, potentially causing stage disconnection or continued regulation depending on the error.
Manual Stage Control
Allows manual connection or disconnection of capacitor stages using specific key presses.
Monitoring Measured Parameters
Enables viewing various parameters like cosφ, current, voltage, and maximum values.
Maintenance and Troubleshooting
Alarm Mode Behavior
Details how the PFC max behaves in alarm mode, including error codes and possible causes.
General Maintenance Guidelines
States that no special maintenance program is required, but qualified staff should perform adjustments.
Maintenance Safety Precautions
Emphasizes disconnecting power, waiting for capacitor discharge, and using protective measures during maintenance.

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