Current Alarm; Heatsink Overheat - YASKAWA V1000 Series Installation & Start-Up Manual

LED Operator Display
HbbF
Cause
One of the baseblock
channels is faulty.
LED Operator Display
HCA
Cause
Load is too heavy.
Acceleration and deceleration
times are too short.
A special-purpose motor is
being used, or the drive is
attempting to run a motor
greater than the maximum
allowable capacity.
The current level increased
due to Speed Search after a
momentary power loss or
while attempting to perform a
fault restart.
LED Operator Display
oH
Cause
Surrounding temperature is
too high
YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual
Hardwire Baseblock Signal Input
One of the baseblock channels is damaged.
Possible Solutions
Replace the drive.

Current Alarm

Drive current exceeded overcurrent warning level (150% of the rated current).
Possible Solutions
• Measure the current flowing through the motor.
• Reduce the load or increase the capacity of the drive.
• Calculate the torque required during acceleration and for the
inertia moment.
• If the torque level is not right for the load, take the following
steps:
• Increase the acceleration and deceleration times
(C1-01 through C1-08).
• Increase the capacity of the drive.
• Check the motor capacity.
• Use a motor appropriate for the drive. Ensure the motor is
within the allowable capacity range.
The alarm will appear only briefly. There is no need to take
action to prevent the alarm from occurring in such instances.

Heatsink Overheat

The temperature exceeded the maximum allowable value.
Possible Solutions
• Check the surrounding temperature.
• Improve the air circulation within the enclosure panel.
• Install a fan or air conditioner to cool surrounding area.
• Remove anything near drive that may cause extra heat.
5.5 Alarm Detection
Minor Fault Name
Minor Fault Name
Minor Fault Name
Minor Fault
Output
(H2- = 10)
YES
Minor Fault
Output
(H2- = 10)
YES
YES
5
YES
YES
Minor Fault (H2-
= 10)
YES
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