A-10 Modbus-RTU Example Connection MN448
A.12 Drive Fault Code and Information
Error Codes may be returned in the High Byte of Register 6 as below.
Fault Fault
CodeCode
No.No. DescriptionDescription Corrective ActionCorrective Action
StStop
0x00
Drive is READY and in a stopped condition. The motor is not energized. No enable signal is present to start the drive
P-de
0X0A
Factory Default parameters have been loaded Press the STOP key, drive is ready to congure for particular
application
000
0x03
Instantaneous Over current on the drive
output.
Excess load or shock load on the motor.
Fault occurs immediately on drive enable or run command
Check the output wiring connections to the motor and the motor for
short circuits phase to phase and phase to earth.
Fault occurs during motor starting
Check the motor is free to rotate and there are no mechanical
blockages. If the motor has a brake tted, check the brake is
releasing correctly. Check for correct star-delta motor wiring. Ensure
the motor nameplate current is correctly entered in parameter 9906.
Increase acceleration time in parameter 2202. Reduce motor boost
voltage setting in parameter 2603
Fault occurs when motor operating at constant speed
Investigate overload.
Fault occurs during motor acceleration or deceleration
The accel/decel times are too short requiring too much power. If
parameter 2202 or 2203 cannot be increased, a bigger drive may be
required
0OOO9
0x04
Motor thermal overload protection trip. The
drive has tripped after delivering >100% of
value in 9906 for a period of time to prevent
damage to the motor.
Ensure the correct motor nameplate current value is entered in
parameter 9906. Check for correct Star or Delta wiring conguration.
Check to see when the decimal points are ashing (which indicates
the output current > parameter 9906 value) and either increase
acceleration ramp (parameter 2202) or decrease motor load.
Check the total motor cable length is within the drive specication.
Check the load mechanically to ensure it is free, and that no jams,
blockages or other mechanical faults exist
OO-b
0x01
Brake channel over current (excessive current
in the brake resistor)
Check the cabling to the brake resistor and the brake resistor for
short circuits or damage. Ensure the resistance of the brake resistor
is equal to or greater than the minimum value for the relevant drive
shown in the user manual.
OO-br
0x02
Brake resistor thermal overload. The drive
has tripped to prevent damage to the brake
resistor
Only occurs if parameter 2020 = 1. The internal software protection
for the brake resistor has activated to prevent damage to the brake
resistor.
Increase the deceleration time (parameter 2203) or 2nd deceleration
time (parameter 2206). Reduce the load inertia
For Other Brake Resistors
Ensure the resistance of the brake resistor is equal to or greater than
the minimum value for the relevant drive shown in the table in the
user manual. Use an external thermal protection device for the brake
resistor. In this case, parameter 2020 may be set to 2
0004
0x05
Hardware Over Current Check the wiring to motor and the motor for phase to phase and
phase to earth short circuits. Disconnect the motor and motor
cable and retest. If the drive trips with no motor connected, it must
be replaced and the system fully checked and retested before a
replacement unit is installed.
000
0x06
Over voltage on DC bus Check the supply voltage is within the allowed tolerance for the
drive. If the fault occurs on deceleration or stopping, increase the
deceleration time in parameter 2203 or install a suitable brake
resistor and activate the dynamic braking function with parameter
2020