What to do if CG Controller displays 'Over curr F'?
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Philip FisherAug 21, 2025
If the CG Controller displays 'Over curr F', it means the motor current exceeds the peak AC drive current. This can be due to several reasons:
* Too short acceleration time.
* Too high motor load.
* Excessive load change.
* Soft short-circuit between phases or phase to earth.
* Poor or loose motor cable connections.
* Too high IxR Compensation level.
To resolve this, check the acceleration time settings (increase if needed), motor load, cable connections, and for moisture in the motor. Also, lower the level of IxR Compensation [352].
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Dustin DixonSep 3, 2025
How to troubleshoot 'Comm error' on CG Controller?
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April WaltonSep 3, 2025
If the CG Controller displays 'Comm error', it indicates an error on serial communication. To resolve this, check the cables and connections, verify all settings related to serial communication, and restart the equipment, including the AC drive.
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Loretta RamosSep 1, 2025
What does 'Motor I2t' mean on CG Emotron VFX Controller?
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Tyler WeaverSep 1, 2025
If the CG Controller displays 'Motor I2t', it means the I2t value has been exceeded, indicating an overload on the motor according to the programmed I2t settings. Check for mechanical overload on the motor or machinery, such as bearings, gearboxes, chains, or belts. You can also change the Motor I2t Current setting in menu group [230].
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Matthew HunterAug 31, 2025
What does 'Over volt (Mains)' mean on CG Emotron VFX Controller?
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Kimberly DavisAug 31, 2025
If the CG Controller displays 'Over volt (Mains)', it indicates that the DC Link voltage is too high due to an excessively high mains voltage. Verify the main supply voltage and try to eliminate any interference or use alternative main supply lines.
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Kyle CraneAug 29, 2025
What does 'Motor lost' mean on CG Controller?
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jeffrey57Aug 29, 2025
If the CG Controller displays 'Motor lost', it indicates a phase loss or too great an imbalance on the motor phases. To address this, check the motor voltage on all phases, look for loose or poor motor cable connections. If connections are okay, contact your supplier. Alternatively, you can set the motor lost alarm to OFF.
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Jessica JohnsonAug 27, 2025
What causes 'Locked rotor' error on CG Emotron VFX Controller?
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Margaret KellyAug 27, 2025
If the CG Controller displays 'Locked rotor', it indicates that the torque limit has been reached while the motor is at a standstill. This is often due to mechanical blocking of the rotor. Check for mechanical problems at the motor or the machinery connected to it. You can also set the locked rotor alarm to OFF.
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Jennifer CordovaAug 26, 2025
Why does CG Controller show 'Under voltage' and how to fix it?
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theresa75Aug 27, 2025
If the CG Controller displays 'Under voltage', it means the DC Link voltage is too low. This can be caused by:
* Too low or no supply voltage.
* Mains voltage dip due to starting other major power consuming machines on the same line.
To resolve this, ensure all three phases are properly connected and the terminal screws are tightened. Verify that the mains supply voltage is within the AC drive's limits. If the dip is caused by other machinery, try using other mains supply lines or use the low voltage override function [421].
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Shannon JonesAug 25, 2025
What causes 'Over volt D(eceleration)' on CG Emotron VFX Controller and how to resolve it?
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Justin BrownAug 25, 2025
If the CG Controller shows 'Over volt D(eceleration)', it means the DC Link voltage is too high. This can happen if the deceleration time is too short for the motor/machine inertia, or if the brake resistor is too small or malfunctioning.
To solve this, check the deceleration time settings and increase them if necessary. Also, check the dimensions and functionality of the brake resistor and the brake chopper (if one is used).
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David VargasAug 23, 2025
How to fix 'Over temp' on CG Controller?
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Casey WeaverAug 23, 2025
If the CG Controller displays 'Over temp', it indicates that the heatsink temperature is too high. This may be due to:
* A high ambient temperature.
* Insufficient cooling.
* Excessive current.
* Blocked fans.
To fix this, check the cooling of the AC drive cabinet, ensure the built-in fans are working (they should activate automatically when the heatsink temperature is high), verify the AC drive and motor rating, and clean the fans.
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