
FR500D Series Special Purpose Inverter for Elevator
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Err22
Parameter
download fault
1: Is not installed or is not
plugged parameter copy card
2: Parameter copy card
anomalies
3: The control board
abnormalities
1: A copy of the card is
properly installed
parameters
2: For technical support
3: For technical support
Err23
Braking unit
fault
1: The brake line failure or
damage the brake pipe
2: An external braking resistor
is too small
1: Check the brake unit,
replace the brake pipe
2: Increasing the braking
resistor
Err24
Module
temperature
detection
disconnection
The temperature sensor failure
or cable break
For technical support
Err25
Load
disconnected
The AC drive running current is
lower than F11.22
Check that the load is
disconnected or the setting
F11-22 and F11-23 is
correct.
Err26
With-wave
current limit fault
1: The load is too heavy or
locked rotor occurs on the
motor.
2: The AC drive model is of too
small power class.
1: Reduce the load and
check the motor and
mechanical condition.
2: Select an AC drive of
higher power class.
Err27
Inverter
soft-start relay is
off
1: The grid voltage is too low
2: Rectifier module failure
1: Check the grid voltage
2: Demand for technical
support
Err28
Software
version
compatibility
fault
1: The upper and lower
transmission module
parameters in the parameter
version of the control panel
version mismatch.
re-upload module
parameters to pass down
Err29
Instantaneous
overcurrent
1. Inverter output circuit being
grounded or short-circuit;
2. The acceleration and
deceleration time is too short;
3. Manually torque boost or V/F
curve not appropriate;
4. Voltage too low;
5. Start the running motor;
6. Sudden-load in the
acceleration process;
7. Model selection of inverter
power is too small.
1. Troubleshooting
peripheral problems;
2. To increase the
acceleration time;
3. Adjust the manually
torque boost or V/F curve;
4. Adjust the voltage to
normal range;
5. Select RPM track start or
start after motor stopped;
6. Cancel sudden-load;
7. Select the inverter with
larger power.
Err30
Instantaneous
overvoltage
1: Input voltage is too high;
2. There is external force drag
the motor to run in deceleration
process;
3. The deceleration time is too
short;
4. No installation of braking
1: Adjust the voltage to
normal range;
2. Cancel external force or
install brake resistor;
3. To increase the
deceleration time;
4. Install braking resistor