FAULT MESSAGES. DESCRIPTIONS AND ACTIONS
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 SD700.
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.
Potential damage to the soft charge resistors of the
SD700.
Try to reset the fault. Disconnect and re-connect
again the input power. If the fault persists contact
Power Electronics for technical service.
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).
Disconnect and connect again SD700 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.
Reset the fault; If the fault persists, request
technical assistance.
A conduction fault has been produced in the
corresponding thyristor. The thyristor is OFF when
it should be on.
Try to reset the fault. Disconnect and re-connect
again the input power. If the fault persists request
technical assistance.
Blocked or poor ventilation.
Check if there is an object blocking ventilation.
Improve the cooling.
Heat sink and cooling fan fault on the SD700.
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.
Input phase L1 is not connected correctly or there
is no voltage on it.
Verify the wiring of the input power supply of the
drive. Check input voltage and input fuses.
Input phase L2 is not connected correctly or there
is no voltage in it.
Input phase L3 is not connected correctly or there
is no voltage in it.
Incorrect reading made by the encoder
Check the encoder wiring and its power supply
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.
Trip generated by a computer through serial
communication.
Disconnect the SD700 from the communication
network and verify if the fault is generated again.
Analogue input cable has been come loose or
disconnected (terminals 10 and 11).
Verify the wiring and the device which provides the
analogue signal.
Analogue input cable has been come loose or
disconnected (T12 and T13).
Verify the wiring and the device which provides the
analogue signal.
Verify drive select. Request technical assistance.
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.
SD700 is voltage limiting voltage due to
regeneration from the motor.
Integrated circuit fault.
Request technical assistance.
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.
Reset the equipment and if the fault persists
request technical assistance.
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