FR500F Series Special Purpose Inverter
- 50 -
on
Err25
Load
becoming 0
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
1
、
2: Rectifier module failure
1: Check the grid voltage
1
、
2: Demand for technical support
2
、
Err28
Software
version
compatibilit
y 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
Instantane
ous
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 acce
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
Instantane
ous
overvoltage
1: Input voltage is too high;
2. There is external force drag
the motor to run in dece
process;
3. The deceleration time is too
short;
4. No installation of braking
resistor.
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
Err39
Motor
temperatur
e too high
1. PTC sensor configuration
not right
2. Motor temperature
protection value too small
3. Motor temperature too high
1. Reset PTC sensor parameter
2. Increase motor temperature
protection value
3. Waiting until motor is cooled
Err40
The setting
running
time ends
1. Running time more than
F00.25
1. Contact the dealer
Err41
Overload
warning
1, when F11.18 = 00100 and
the current output amp is more
than F11.19
1, Check the current load
