Bedford B550-2001, Инструкция по установке и быстрому запуску

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7-2
Fault
Name
Fault Descriptions
Corrective Actions
The AC drive temperature
sensor detects excessive heat.
1. Ensure that the ambient temperature falls
within the specified temperature range.
2. Make sure that the ventilation holes are not
obstructed.
3. Remove any foreign objects on the heat
sinks and check for possible dirty heat sink
fins.
4. Provide enough spacing for adequate
ventilation.
The AC drive detects that the
DC bus voltage has fallen below
its minimum value.
Check whether the input voltage falls within the
rated AC drive’s input voltage.
The AC drive detects excessive
drive output current.
Note: The AC drive can
withstand up to 150% of the
rated current for a maximum of
60 seconds.
1. Check whether the motor is overloaded.
2. Reduce torque compensation setting as set
in Pr.54.
3. Increase the AC drive’s output capacity.
Internal electronic overload trip
1. Check for possible motor overload.
2. Check electronic thermal overload setting.
3. Increase motor capacity.
4. Reduce the current level so that the drive
output current does not exceed the value set
by the Motor Rated Current Pr.52.
Motor overload. Check the
parameter settings (Pr.60 to
Pr.62)
1. Reduce the motor load.
2. Adjust the over-torque detection setting to an
appropriate setting.
B550
Series
sensorless vector frequency drive