Power Electronics SD700 - Page 81

POWER ELECTRONICS
SD700FR SERIES
FAULT MESSAGES. DESCRIPTIONS AND ACTIONS
79
DISPLAY
POSSIBLE CAUSE
ACTIONS
F21 I LIM T/O
Motor stalled. Heavy load.
Motor mechanical brake is coupled.
Check the motor load.
Increase maximum current limit.
F22 TQ LIM T/O
Motor stalled. Heavy load.
Motor mechanical brake is coupled.
Check the motor load.
Increase maximum torque limit.
F23 SPD LIMIT MIN
Speed reference is lower or equal than the speed
limit.
Check the reference source and the motor load.
Motor speed is out of control or motor is not
accelerating due to the load.
Verify speed limits.
F25 MTR O/L
High current used by the motor due to heavy
load.
Check the motor load.
Check the setting of parameters „G2.1 MTR CUR‟
and „G2.7 MTR COOL‟ relating to the motor
thermal model. Increasing the parameter „G2.7
MTR COOL‟, can be undertaken when there is a
motor PTC fitted and it is connected to the
SD700FR.
The load exceeds the capacity of motor cooling
under normal operating conditions.
Incorrect setting of the thermal model
parameters.
Phase loss of the motor or a fault in motor
windings.
F28 Ir.LIM TO
Excessive regeneration is produced due to
deceleration ramp to high.
Decrease deceleration ramp.
Revise the setting of parameters related to
regenerating current limitation (G10.12 and
G10.13).
F29 DSP FLT
Input power fault.
Disconnect and connect again SD700FR input
power. If the same fault appears, initialize all of
the parameters (parameter „G1.5 INITIALISE‟)
and connect the input power again. If the fault
persists, request technical assistance.
Parameter setting is incoherent.
F30 WATCHDOG
Input power fault.
Reset the fault; If the fault persists, request
technical assistance.
F34 IGBT TEMP
Blocked or poor ventilation.
Check if there is an object blocking ventilation.
Improve the cooling.
Heat sink and cooling fan fault on the SD700FR.
Check if the heat sink and the cooling fan are
operating correctly.
Ambient temperature is higher than 50°C.
Check the cooling and thermal conditions.
Request technical assistance.
F37 SW MISMATCH
The DSP software version of the inverter and the
rectifier bridges are different.
Check these two software versions with the
display.
Check CAN communications.
F40 EXT / PTC
External trip device has operated.
Check the external trip switch (if exists).
Motor is overheated (motor load exceeds the
cooling capacity at operating speed).
Check motor temperature.
To reset the fault the motor must be return to
normal temperature.
Fault in sensor connection.
Check sensor wiring.
F41 COMMS TRIP
Trip generated by a computer through serial
communication.
Disconnect the SD700FR from the
communication network and verify if the fault is
generated again.
F42 AIN1 LOSS
Analogue input cable has been come loose or
disconnected (terminals 10 and 11).
Verify the wiring and the device which provides
the analogue signal.
F43 AIN2 LOSS
Analogue input cable has been come loose or
disconnected (T12 and T13).
Verify the wiring and the device which provides
the analogue signal.
F44 CAL FLT
SD700FR fault.
Verify drive select. Request technical assistance.
F45 STOP T/O
Deceleration ramps (parameters „G5.2 DECEL1‟
and „G5.4 DECEL2‟) are too slow.
Verify that the time set in parameter „G11.2 STOP
TO‟ to stop the system after setting deceleration
ramps and checking the system performance.
SD700FR is voltage limiting voltage due to
regeneration from the motor.
F46 EEPROM FLT
Integrated circuit fault.
Request technical assistance.
F47 COMMS T/O
Communications cable has been come loose or
cut.
Verify the wiring of communications system.
Master device has not sent valid data in the
required frame or it has sent incorrect data.
Verify the data and settings of the master device.