MacroAir Technologies Diamond HVLS Series

Questions and Answers

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Charles ReynoldsAug 1, 2025
What to do if my MacroAir Technologies Diamond HVLS shows an overcurrent problem?
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  Kelly BrownAug 1, 2025
  If your MacroAir Technologies Fan is showing an overcurrent error, it could be due to several reasons: * A short circuit or grounding problem in the motor cables. Inspect the motor cables and remove any short circuits. * The load being too heavy. Measure the current flowing into the motor. If it exceeds the drive's rated current, consider replacing it with a larger capacity unit. Also, check for sudden fluctuations in the current level and reduce the load to avoid these changes, or switch to a larger drive. * The motor cable being too long. In this case, using a larger drive may resolve the issue.
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Michelle BellAug 5, 2025
What to do if my MacroAir Technologies Diamond HVLS Fan displays an overvoltage error?
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  Lauren FryeAug 5, 2025
  If your MacroAir Technologies Fan shows an overvoltage error, it could be due to: * Deceleration time being too short, causing regenerative energy to flow from the motor into the drive. Increase the deceleration time, install a braking resistor or a dynamic braking resistor unit, or enable stall prevention during deceleration. * Fast acceleration time causing the motor to overshoot the speed reference. Check if sudden drive acceleration triggers the overvoltage alarm. Increase the acceleration time or use longer S-curve acceleration and deceleration times. * Excessive braking load. Reduce the braking torque, use a braking option, or lengthen deceleration time. * Drive input power voltage being too high. Check the voltage and lower it within the limits specified.
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Mitchell SmithAug 9, 2025
What to do if my MacroAir Technologies Diamond HVLS Fan shows a DC Bus Undervoltage error?
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  omosesAug 9, 2025
  If your MacroAir Technologies Fan is experiencing a DC Bus Undervoltage issue, possible causes include: * Input power phase loss. The main circuit drive input power may be wired incorrectly; correct the wiring. * Loose wiring at one of the drive input power terminals. Ensure all terminals are tightened properly, applying the specified torque. * Voltage problems from the drive input power. Check the voltage and correct it to be within the specified range. * Power interruption. Correct the drive input power. * An undersized drive input power transformer causing voltage drops after power is switched on. Check the capacity of the transformer.
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xwestAug 14, 2025
Why is my MacroAir Technologies Fan motor overloading?
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  Christopher WalkerAug 14, 2025
  If your MacroAir Technologies Fan is experiencing motor overload, the issue might be due to: * The load being too heavy. Try reducing the load. * The drive being overloaded at low speeds. Reduce the load, increase the speed, or use a motor specifically designed to operate with the drive. Alternatively, increase the motor capacity. * Multiple motors running off the same drive. Disable the Motor Protection function and install a thermal relay to each motor.
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adamsshannonAug 18, 2025
What causes input phase loss in my MacroAir Technologies Fan?
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  Stephen HallAug 18, 2025
  If your MacroAir Technologies Fan is showing an input phase loss, it could be due to: * Phase loss in the drive input power. Check for wiring errors in the main circuit drive input power and correct the wiring. * Loose wiring in the drive input power terminals. Ensure the terminals are tightened properly, applying the specified torque. * Excessive fluctuation in the drive input power voltage. Check the voltage from the drive input power and review possible solutions for stabilizing it. Alternatively, disable Input Phase Loss Detection, but be aware this may stress the capacitors more.
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Jason JensenAug 23, 2025
Why is my MacroAir Technologies Fan drive overloading?
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  Michael CollinsAug 23, 2025
  If your MacroAir Technologies Fan is experiencing a drive overload, it could be due to: * The load being too heavy. Reduce the load. * Overload occurring when operating at low speeds. Reduce the load when operating at low speeds, replace the drive with a larger model, or lower the carrier frequency. * Excessive torque compensation. Reduce the torque compensation gain until there is no speed loss but less current. * Output current fluctuation due to input phase loss. Check the power supply for phase loss.
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Jordan LaneNov 25, 2025
What causes motor pull out in my MacroAir Technologies Diamond HVLS Fan?
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  Michael ReidNov 26, 2025
  If your MacroAir Technologies Fan motor experiences pull out or step out detection, consider the following possible causes: * The wrong motor code being set (Yaskawa motors only). Enter the correct motor code for the PM being used. For special-purpose motors, enter the correct data to all E5 parameters according to the Test Report provided for the motor. * The load being too heavy. Increase the value set to n8-55 (Load Inertia for PM), increase the value set to n8-51 (Pull-In Current during Accel/Decel for PM), reduce the load, or increase the motor or drive capacity. * Load inertia being too heavy. Increase n8-55 (Load Inertia for PM). * Acceleration and deceleration times being too short. Increase the acceleration and deceleration times, and increase the S-curve acceleration and...