Instruction Manual
for
AS380 Series Elevator Integrated Drive Controller
222
Code
Fault
Description
Possible Cause Solution
protection
(In decelerated
running) bus
over-voltage
protection
Excessive load inertia Use appropriate braking components
Deceleration time is too
short
Extend the deceleration time
The braking resistor has an
extremely large value or is
disconnected
Connect the appropriate braking resistor
(In constant
speed operation
) bus
over-voltage
protection
Exceptional input power Check the input power
Excessive load inertia Use appropriate braking components
The braking resistor has an
extremely large value or is
disconnected
Connect the appropriate braking resistor
79
Bus under
voltage
Supply voltage falls
below the
minimum operating voltage
Check the input power
Instantaneous power failure Check the input power. When the input voltage is
normal, restart after reset
Significant changes in input
power voltage
The power wiring terminal is
loose
Check the input wiring
Abnormal internal switching
power
Ask professional technical personnel for Ispection
Large starting
current load in the
same power system
Changes the power system to meet the specifications
80
Open phase for
output
Abnormal, or ignored
connection or disconnection
in converter output side
connection
Follow the rules and check the converter output side
connections, eliminate missing and disconnection
Output terminal is loose
Electrical power is too
small, 1 / 20 or less of the
maximum applicable
motor capacity in
the converter
Adjust converter capacity or motor capacity
Unbalanced Check whether the motor wiring is intact
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