What does AC drive hardware fault mean on Sako Inverter?
If your Sako Inverter reports an AC drive hardware fault, it indicates the presence of overvoltage or overcurrent. Handle the fault based on the specific overvoltage or overcurrent condition.
What to do if Sako V780 Inverter shows overcurrent during acceleration?
If your Sako Inverter is experiencing overcurrent during acceleration, it might be due to: * A grounded or short-circuited output circuit: Address any external faults. * Improper motor auto-tuning: Perform motor auto-tuning. * A too-short acceleration time: Increase the acceleration time. * Inappropriate manual torque boost or V/F curve: Adjust these settings accordingly. * Low voltage: Adjust the voltage to the normal range. * Starting operation on a rotating motor: Select rotational speed tracking restart, or wait for the motor to stop before starting. * Sudden load added during acceleration: Remove the added load. * Insufficient AC drive power class: Select an AC drive with a higher power class.
How to fix IGBT overheat on Sako V780 Inverter?
If your Sako Inverter shows an IGBT overheat fault, it could be due to several reasons: * The ambient temperature is too high: Lower the ambient temperature. * The air filter is blocked: Clean the air filter. * The fan is damaged: Replace the damaged fan. * The thermally sensitive resistor of the IGBT is damaged: Replace the damaged thermally sensitive resistor. * The AC drive IGBT is damaged: Replace the AC drive IGBT.
Why Sako Inverter shows overcurrent during deceleration?
If your Sako Inverter is experiencing overcurrent during deceleration, there are several potential causes: * The output circuit could be grounded or short-circuited: You should eliminate any external faults. * Motor auto-tuning may not have been performed: Perform the motor auto-tuning. * The deceleration time might be too short: Increase the deceleration time. * The voltage could be too low: Adjust the voltage to the normal range. * A sudden load might have been added during deceleration: Remove the added load. * The braking unit and braking resistor may not be installed: Install the braking unit and braking resistor.
What causes frequent Err14 IGBT overheat fault on Sako V780?
If your Sako Inverter displays Err14 (IGBT overheat) frequently, it could be due to: * The carrier frequency setting being too high: Reduce the carrier frequency (P0-15). * A damaged cooling fan or blocked air filter: Replace the fan and clean the air filter. If the issue persists, it may indicate damaged components inside the AC drive, such as the thermal coupler, in which case you should contact technical support.
How to resolve motor auto-tuning fault on Sako Inverter?
If your Sako Inverter experiences a motor auto-tuning fault, it could be due to: * The motor parameters are not set according to the nameplate: Set the motor parameters according to the nameplate properly. * The motor auto-tuning times out: Check the cable connecting the AC drive and the motor.
Why the motor does not rotate after Sako AC drive runs?
If the motor does not rotate after the Sako AC drive runs, consider the following: * Check the motor and the motor cables: Ensure the cable between the AC drive and the motor is normal. * The AC drive parameters are set improperly (motor parameters): Replace the motor or clear mechanical faults. * The cable between the drive board and the control board is in poor contact: Check and re-set motor parameters.
What causes contactor fault on Sako V780?
If your Sako Inverter displays a contactor fault, it could be due to: * The drive board and power supply are faulty: Replace the faulty drive board or power supply board. * The contactor is faulty: Replace the faulty contactor.
What causes overvoltage at constant speed on Sako Inverter?
If your Sako Inverter experiences overvoltage at a constant speed, it could be due to: * The input voltage being too high: Adjust the voltage to the normal range. * An external force driving the motor during deceleration: Cancel the external force or install the braking resistor.
What to do if Sako Inverter shows AC drive overload?
If your Sako Inverter is experiencing AC drive overload, it could be due to: * The load being too heavy or locked rotor occurring on the motor: Reduce the load and check the motor and mechanical condition. * The AC drive model being of too small power class: Select an AC drive of higher power class.
Lists the main topics covered in the manual, from safety to troubleshooting.
Highlights essential safety guidelines and warnings for inverter use.
Prohibits unsafe usage environments and handling of the inverter.
Guidelines for safe installation, wiring, and operation of the inverter.
Explains the naming convention and model number structure.
Details electrical ratings, adaptable motor sizes, and environmental requirements.
Specifies ambient conditions like temperature, humidity, and installation height.
Provides physical dimensions and installation layout diagrams for the inverter.
Details main and control circuit terminals and their functions.
Illustrates typical wiring connections for the inverter.
Shows the physical arrangement of buttons, indicators, and display on the control panel.
Explains the meaning of various indicator lights on the panel.
Details the purpose and operation of each key on the control panel.
Introduces the structure of function codes and parameter tables.
Lists common fault codes, types, and initial solutions for the inverter.
Provides a structured list of possible causes and solutions for various fault conditions.
To Next Page
General
