Vacon X5 - User Manual

Questions and Answers

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dhooperAug 29, 2025
What to do about dynamic brake overload in my Vacon X5?
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  Antonio CarpenterAug 29, 2025
  A dynamic brake (DB) overload in your Vacon Controller can occur due to: * The DB circuit being active on power-up. Check for a failed braking transistor. * The DB circuit being activated for too long, possibly causing the resistor to overheat or fail. Reduce the braking cycle or increase capacity. Activate the current limit. * The DB circuit being overloaded because of too large a regenerative load. Reduce the braking cycle or increase capacity. Activate the current limit.
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Steven BirdAug 28, 2025
What causes a low voltage trip on my Vacon X5 Controller?
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  Jacqueline WillisAug 28, 2025
  A low voltage trip occurs if a power dip is detected when the Vacon Controller is operating, and the drive cannot ride through the power dip before shutting off outputs. To fix this: * Verify that the input line power is within the drive’s specifications. * Add a transformer or reduce demands to the power feed.
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Emma BallardAug 27, 2025
How to troubleshoot communication loss on my Vacon X5?
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  jcaldwellAug 27, 2025
  A communication loss fault occurs when the Vacon Controller is in a serial link control path, and the time since the last Modbus communication exceeds the time set in parameter 903 (SIO Timer). To resolve this: * Check the connections to the Modbus port. * Adjust the value of parameter 903 (SIO Timer) as needed.
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Jeffery HobbsAug 27, 2025
How to fix an over-temperature condition in a Vacon X5 Controller?
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  Bruce HughesAug 27, 2025
  An over-temperature condition in your Vacon Controller can be caused by several factors: * The temperature of the heatsink or control board exceeded a temperature limit. Check that the ambient temperature does not exceed the drive’s rating and check for fan operation (assuming the drive has fans installed). * The drive sensed that the heatsink or control board thermistor sensor is faulty or not connected properly. Check the thermistor connections or replace it.
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Pamela McfarlandAug 25, 2025
What causes an overcurrent condition in my Vacon X5 Controller?
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  Erik WiseAug 26, 2025
  An overcurrent condition in your Vacon Controller can occur if: * The drive sensed an overcurrent condition on power-up. In this case, check for a failed output power device or a shorted motor. * The drive sensed an overcurrent condition during operation because the current has exceeded the safe operation point of power devices. Reduce the load on the motor, verify that the Motor FLA is programmed correctly, and check for mechanical binding and shock loading.
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Samantha McculloughAug 25, 2025
What to do if my Vacon Controller displays a ground fault?
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  mistysmithAug 25, 2025
  If your Vacon Controller displays a ground fault, it means the drive has detected a current imbalance between output phases, indicating current flow to ground. To resolve this: * Check for unbalanced currents. * Check for grounded motor leads or a grounded motor.

Vacon X5 Specifications

General

Product Type	AC Drive
Frequency Range	0-500 Hz
Control Method	Scalar control (U/f), Sensorless vector control
Operating Temperature	-10°C to +50°C (with derating above +40°C)
Storage Temperature	-40°C to +70°C
Humidity	Less than 95% (non-condensing)
Communication Protocols	Modbus