SDRIVE 700
POWER ELECTRONICS
102
FAULT MESSAGES. DESCRIPTIONS AND ACTIONS
DISPLAY
POSSIBLE CAUSE
ACTIONS
Communications cable has been come loose or
cut.
Verify the wiring of communications system.
F47 COMMS T/O
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.
F48 SPI COM
Input power fault.
Reset the equipment and if the fault persists
request technical assistance.
Speed reference is higher than the speed limit.
Check the reference source and the motor load.
F49 SPD LIMIT
Motor speed is out of control or motor is
accelerating because of the load.
Verify speed limits.
F50 PSU FAULT
Damaged power supply.
Reset the equipment and if the fault persists
request technical assistance.
F51 SCR TEMP
Temperature limits for SD700 rectifier have been
exceeded.
Verify that the ambient conditions are proper for
the equipment.
Be sure that there is nothing obstructing the
cooling fans (dust, papers, dirt, etc) and that these
rotate correctly.
Fans of the equipment are operating wrong.
Verify that fans are not obstructed.
Check that fans are not dirty and rotate correctly.
F52 SOFT C TEMP
Power supply of the fans has been overheated.
Wait for the temperature of the power supply
decreases down to a value in normal conditions
and restart it. You can disconnect the equipment,
connect it again, and restart the power supply
again. If the fault persists request technical
assistance of Power Electronics.
F53 INTRNAL
TEMP
The limit of internal temperature of the electronics
chamber has been exceeded.
Verify that the ambient conditions are proper for
the equipment.
Be sure that there is nothing obstructing the
cooling fans (dust, papers, dirt in general) and that
these rotate correctly.
F54 WATCHDOG
TMR
A fault in the microcontroller has occurred.
Disconnect and re-connect the input power of the
drive. If the fault persists request technical
assistance of Power Electronics.
F56
EMERGEN.STOP
An external trip has been produced by closing a
contact on the digital input configured in this
option.
Verify the wiring of digital input.
Check the installation.
High current used by the motor due to heavy load.
The load exceeds the capacity of the motor cooling
under normal operating conditions.
Incorrect setting of the parameters related to pump
overload.
F57 PUMP
OVERLOA
Phase loss of the motor or a fault in motor
windings.
Check the motor load.
Check if the motor cooling is appropriate.
Check the setting of the parameters related to
pump overload in group G11.
Verify the setting of minimum pressure level.
Check the operation of the low pressure switch
detector.
F65 LOW
PRESSURE
Pressure reference is lower than the minimum
pressure level (Active in Pump Control mode only).
Check the status of the analogue inputs 1 and 2 in
parameters SV3.1 and SV3.4 in displaying group
G0.
Check if the pressure of the installation exceeds
the set limits.
F66 HI PRESSURE
An external trip has been produced by closing a
contact on the digital input configured in this option
(Active in Pump Control mode only).
Verify the wiring of digital input.
A contact has activated to indicate that there is a
fault by lack of water. Verify the conditions of the
installation
F67 LOW WATER
An external trip has been produced by opening a
contact on the digital input. (Active in Pump Control
mode only)
Verify the wiring of digital input.
