5-4
Displayed Code Description of Failure Solutions
During deceleration, the Hybrid
servo drive’s DC side voltage is
lower than the setting value of
Parameter 02-07.
During constant speed operation,
the Hybrid servo drive’s DC side
voltage is lower than the setting
value of Parameter 02-07.
When the machine stops, the Hybrid
servo drive’s DC side voltage is
lower than the setting value of
Parameter 02-07.
Phase loss protection
Check if the single-phase input is used for the
three-phase model or there is any phase loss.
Check if it is a model with capacity higher than 40HP.
If so, please check the AC-side fuse for burning.
Ground protection is activated.
When the Hybrid servo drive detects
the output end is grounded and the
grounding current is larger than 50%
of the Hybrid servo drive’s rated
current. Note: Such a protection is
used for protecting the Hybrid servo
drive not for human body.
Check the connection to the motor for short circuit or
ground fault.
Make sure if the IGBT power module is damaged.
Check the connection at the output side is improperly
insulated.
The Hybrid servo drive detects
overheat of the IGBT with a
temperature higher than the
protection level
7.5 – 15HP: 90℃
20 – 100HP: 100℃
Check if the ambient temperature is too high.
Check if the heat sink for any external object. Check if
the fan is running.
Check if the Hybrid servo drive has sufficient space.
The Hybrid servo drive detects
overheat of the heat sink with a
temperature higher than the
protection level (90 )℃
Check if the ambient temperature is too high.
Check if the heat sink for any external object. Check if
the fan is running.
Check if the Hybrid servo drive has sufficient space.
The Hybrid servo drive detects the
motor internal overheat which is
higher than the protection level
(02-09 PTC level)
Check if the motor is jammed.
Check if the ambient temperature is too high.
Increase the capacity of the motor
Fan fails
Check if the fan is blocked.
Return to factory for repair.
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