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[Control Card / ASIC] <- - - (Internal CAN Bus Broken / Interrupted) - - -> [Power Card / EEPROM] | [ERROR 1027 LOGGED]
It is important to distinguish between an "Alarm" and a "Warning" on a Danfoss drive. A "Warning" is the drive's way of alerting you to a condition that might lead to a problem, but operation can usually continue. An "Alarm," however, is a more severe indication that often causes the drive to trip and stop the motor to prevent damage. Based on the manual's description, Error 1027 is likely a critical alarm that requires immediate attention.
While the alarm suggests a "possible hardware error", it can sometimes be triggered by external factors affecting internal electronics. danfoss error 1027
As with many VFD faults, a hard reset might clear a temporary hiccup. Turn off the main power to the VFD.
Duplicate addresses on the same network cause data collisions. [Control Card / ASIC] [Power Card / EEPROM]
) from the inverter's IGBT switching can leak into the control circuits. This corrupts the data frames, creating consecutive transmission timeouts. Danfoss VLT LD 302 HDR-V2 - IBA Lift
Protect your control network from voltage spikes by installing surge protection devices on the main power supply line. Based on the manual's description, Error 1027 is
Sometimes the drive's internal memory (where parameters are stored) becomes corrupted, preventing the boot-up sequence from completing. When to Call Professional Support
Ensure the motor cable shield is connected correctly to the ground plate.
Reconnect the power and attempt to clear the alarm using the Check for Hardware Obstructions
Wait 5 to 10 minutes for the internal DC-link capacitors to fully discharge. Verify the display is completely blank. Turn the power back on and check if Error 1027 clears. Step 2: Initialize the Drive (Factory Reset)