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General| Brand | Vacon |
|---|---|
| Model | CX |
| Category | Media Converter |
| Language | English |
Precautions to ensure safe working practices when handling the drive.
Guidelines for handling ESD-sensitive components to prevent damage.
Periodic maintenance tasks to ensure long, trouble-free service life.
Safety precautions before performing capacitor re-forming procedures.
Importance of testing and troubleshooting for locating defective parts and recovery.
Drive saves and displays fault codes; reasons and solutions must be solved.
Numeric fault codes explained with measures for troubleshooting.
Detailed procedures for diagnosing and resolving unit malfunctions.
Critical safety warnings before performing any service measures on the unit.
Step-by-step instructions for checking various circuits and components.
Procedure for checking the current measurement circuit for proper operation.
Methods for checking the condition of IGBT modules, including visual and threshold voltage tests.
Procedure for checking gate driver signals to ensure proper IGBT switching.
Instructions for checking the voltage measurement circuit for accurate readings.
Procedure for checking the dynamic braking chopper function and components.
Instructions for checking the operation and troubleshooting of the charging circuit.
Procedures for troubleshooting the rectifier circuits.
Method for checking DC bus capacitors, including functional tests and replacement.
Details on the AC to DC converter, including its description and operation.
Description of the front end, rectifier module, and line reactor.
Explanation of how AC power is converted to DC power through the line reactor and rectifier.
Troubleshooting steps for the AC to DC converter, including diode checking.
Information on the DC bus, precharging circuit, and capacitor bank.
Description of the precharging circuit for smooth capacitor charging and DC bus filtering.
Troubleshooting steps for the precharging circuit and charging switch.
Troubleshooting of IGBTs is described in section 7.3.2.2.
Troubleshooting for damaged balancing resistors, including visual inspection and multimeter checks.
Warnings about dangerous voltages on the power board and safe testing practices.
Troubleshooting the power board by checking signals and supply voltages.
Warnings about dangerous energies on the control board and safe testing practices.
Troubleshooting the control board by checking signals and supply voltages.
Warnings about dangerous energies on the adapter board and safe testing practices.
Troubleshooting the adapter board by checking signals and supply voltages.
Warnings about dangerous energies on the branching board.
Troubleshooting the branching board by checking connectors and soldered junctions.
Warnings about dangerous high voltages on the extender board.
Troubleshooting the extender board by measuring signals from specific terminals.
Warnings about AC fan voltage and the importance of correct autotransformer tapping.
Checking fan rotation, airflow, and cleaning; measuring fan winding DC resistance.
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