ebm-papst K3G250-PR02-J2

To Next Page

Operating instructions

K3G250-PR02-J2

Translation of the original operating instructions

ebm-papst Mulfingen GmbH & Co. KG

Bachmühle 2

D-74673 Mulfingen

Phone +49 (0) 7938 81-0

Fax +49 (0) 7938 81-110

info1@de.ebmpapst.com

www.ebmpapst.com

CONTENTS

1. SAFETY REGULATIONS AND INFORMATION

11. SAFETY REGULATIONS AND INFORMATION

Read these operating instructions carefully before starting work on the

device. Observe the following warnings to prevent malfunctions or

danger to persons.

These operating instructions are to be regarded as part of the device.

The device is only to be sold or passed on together with the operating

instructions.

These operating instructions may be duplicated and distributed to inform

about potential dangers and their prevention.

1.1 Hazard levels for warnings

11.1 Hazard levels for warnings

These operating instructions use the following hazard levels to indicate

potentially hazardous situations and important safety regulations:

DANGER

Indicates an imminently hazardous situation which will result in

death or serious injury if the specified actions are not taken.

Compliance with the instructions is imperative.

WARNING

Indicates a potentially hazardous situation which can result in

death or serious injury if the specified actions are not taken.

Exercise extreme caution while working.

CAUTION

Indicates a potentially hazardous situation which can result in

minor or moderate injury or damage to property if the specified

actions are not taken.

NOTE

A potentially harmful situation can occur and, if not avoided, can

lead to property damage.

1.2 Staff qualifications

11.2 Staff qualifications

The device may only be transported, unpacked, installed, operated,

maintained and otherwise used by suitably qualified, trained and

authorized technical staff.

Only authorized specialists are permitted to install the device, to carry

out a test run and to perform work on the electrical installation.

1.3 Basic safety rules

11.3 Basic safety rules

The safety hazards associated with the device must be assessed again

following installation in the final product.

The locally applicable industrial safety regulations are always to be

observed when working on the device.

Keep the workplace clean and tidy. Untidiness in the work area

increases the risk of accidents.

Note the following when working on the device:

; Do not perform any modifications, additions or conversions on the

device without the approval of ebm-papst.

1.4 Voltage

11.4 Voltage

; Check the device's electrical equipment at regular intervals; see

Chapter 6.3 Safety inspection.

; Replace loose connections and defective cables immediately.

DANGER

Electrically charged device

Risk of electric shock

→ When working on an electrically charged device, stand on a

rubber mat.

21.5 Safety and protective features

21.6 Electromagnetic radiation

21.7 Mechanical movement

21.8 Emissions

21.9 Hot surface

21.10 Transport

21.11 Storage

32. INTENDED USE

43. TECHNICAL DATA

43.1 Product drawing

53.2 Nominal data

53.3 Data according to Commission Regulation (EU) 327/2011

53.4 Technical description

63.5 Mounting data

63.6 Transport and storage conditions

63.7 Electromagnetic compatibility

64. CONNECTION AND STARTUP

64.1 Mechanical connection

74.2 Electrical connection

84.3 Connecting the cables

84.4 Factory settings

94.5 Connection diagram

104.6 Checking connections

104.7 Switching on the device

104.8 Switching off the device

105. INTEGRATED PROTECTIVE FEATURES

106. MAINTENANCE, MALFUNCTIONS, POSSIBLE

CAUSES AND REMEDIES

116.1 Vibration testing

116.2 Cleaning

126.3 Safety inspection

126.4 Disposal

Item no. 54425-5-9970 · ENU · Change 218259 · Approved 2021-02-15 · Page 1 / 13

ebm-papst Mulfingen GmbH & Co. KG · Bachmühle 2 · D-74673 Mulfingen · Phone +49 (0) 7938 81-0 · Fax +49 (0) 7938 81-110 · info1@de.ebmpapst.com · www.ebmpapst.com

Need help?

Do you have a question about the ebm-papst K3G250-PR02-J2 and is the answer not in the manual?

This document provides comprehensive operating instructions for the K3G250-PR02-J2 device, a built-in fan designed for conveying air. It emphasizes safety, proper installation, and maintenance to ensure optimal performance and longevity.

Function Description

The K3G250-PR02-J2 is an axial fan primarily intended for air conveyance within stationary systems. It operates by drawing in air and moving it through a system, making it suitable for various applications where controlled airflow is required. The device is designed to be integrated as a component within larger customer equipment, and its operation is governed by a sophisticated control system that allows for variable speed adjustment.

Key functional aspects include:

Air Conveyance: The primary function is to move air efficiently according to its technical specifications.
Integrated Control: The device features an integrated PID controller and supports MODBUS-RTU communication via RS-485, allowing for precise speed control and parameter setting. It can be controlled using analog input signals (0-10 VDC or PWM) or external 24 V input for parameter setting.
Protective Features: It incorporates several integrated protective functions to ensure safe operation and prevent damage. These include rotor position detection error handling, blocked rotor protection, line undervoltage detection, and phase failure detection. In the event of a fault, the motor will automatically switch off and, in many cases, restart automatically once the fault condition is resolved. Thermal overload protection is also included for both the electronics and the motor.
Status and Alarm Outputs: The device provides status relay outputs for indicating operational status and alarms, which can be integrated into a larger control system for monitoring.
Soft Start: A soft start feature is included to reduce mechanical stress and electrical current surges during startup.

Usage Features

The device is designed for straightforward integration and operation, with several features enhancing its usability and safety:

Built-in Component: It is intended to be a built-in component, requiring installation within customer equipment. The design ensures that the device can withstand mechanical and thermal stresses arising from its operation within the equipment.
Power System Compatibility: The fan is designed for use in power systems with grounded neutral (TN/TT power systems) and in networks conforming to EN 50160 quality characteristics.
Ambient Conditions: It is suitable for conveying air at ambient pressures between 800 mbar and 1050 mbar and within a specified ambient temperature range.
Protective Devices: The device must always be operated with all protective devices in place, such as fixed protective devices and guard grills, to prevent accidental contact with rotating parts.
Mechanical Connection: The installation process involves careful mechanical connection, ensuring the fan is securely attached to the substructure and isolated from excessive vibration. Specific instructions are provided for handling during transport and installation, including the use of appropriate hoisting equipment and round slings to prevent damage.
Electrical Connection: Detailed guidelines are provided for electrical connection, emphasizing the importance of proper grounding, using cables that meet specified installation regulations, and ensuring correct routing to avoid contact with rotating parts. It highlights the need for an all-pole disconnection switch for safety during maintenance.
EMC Compliance: The device includes an integrated EMC filter to comply with EMC limits. Users are advised to ensure the entire setup is EMC-compliant, especially when multiple devices are connected in parallel.
Factory Settings: The device comes with predefined factory settings for PWM control, fan/device address, and set value requirements, simplifying initial setup.
Safety Warnings: The manual prominently features warnings regarding live terminals, rotating parts, hot surfaces, and potential electrical charges, guiding users to take necessary precautions.

Maintenance Features

Regular maintenance is crucial for ensuring the long service life and trouble-free operation of the K3G250-PR02-J2. The manual outlines several maintenance-related features and recommendations:

Vibration Testing: Regular checking for mechanical vibration, based on ISO 14694, is recommended every six months. This helps detect imbalances or other issues that could shorten the fan's service life.
Cleaning: Fans should be checked regularly for proper operation and soiling. The frequency of cleaning depends on the degree of soiling. Dry cleaning, such as using compressed air, is the preferred method. Strict warnings are given against using high-pressure cleaners, aggressive cleaning agents, or pointed objects that could damage the device. Cleaning should only be performed when the fan is not in motion and disconnected from the power supply.
Inspection for Damage: Users are advised to check for visible external damage, severe corrosion on load-bearing or rotating parts, and dirt deposits on the motor housing or impeller. Damaged devices should not be installed, and severe corrosion or vibration necessitates immediate replacement.
Bearing Maintenance: The fan is equipped with maintenance-free ball bearings with lifetime lubrication designed for a service life of 40,000 hours. If bearing replacement becomes necessary after this period, ebm-papst should be contacted.
Safety Inspection: A safety inspection, including checking contact protection covers, blades, housing, cable fastenings, protective earth terminal, and cable insulation, is recommended at least every six months. High-voltage testing, if required, should be performed with DC voltage due to the integrated EMC filter.
Storage Recommendations: For devices not in operation for extended periods, specific storage conditions are recommended, including dry, vibration-free environments in original packaging. Periodic startup and operation at full speed are advised to move bearings and evaporate any condensate, especially in damp environments.
Troubleshooting Guide: A comprehensive troubleshooting guide is provided to help identify and remedy common malfunctions, such as impellers not running smoothly, motors not turning, or issues related to line voltage, cooling, and ambient temperature.
Disassembly and Disposal: Instructions for disassembly and ecological disposal of components are provided, emphasizing the need for qualified personnel and adherence to country-specific legal requirements. The product's materials (steel, copper, aluminum, plastic) are largely recyclable, and guidance is given on separating components into appropriate categories.