NORD Drivesystems BU0300 - Manual (Page 119)

8 Fault messages
BU 0300 EN Subject to technical alterations 119
8 Fault messages
Faults cause the frequency inverter to switch off. This prevents device defects.
The following options are available to reset an fault (acknowledge):
1. By switching the mains off and on again,
2. By an appropriately programmed digital input (P420 ... P424 = function 12),
3. By removing the "enable" from the FI (if no digital input acknowledge has been programmed),
4. By Bus acknowledgement or
5. by P506, the automatic fault acknowledgement.
Device LEDs: In the delivery condition (without technology unit), 2 LEDs
(green/red) are visible externally (see illustration). These indicate the
actual status of the device.
The green LED indicates that the mains voltage is present and
operational, while a flashing code that increases in speed shows the
degree of overload at the frequency inverter output.
The red LED signals actual error by flashing with a frequency which
corresponds to the number code of the fault (Section. 6.2).
8.1 ControlBox display
The ControlBox displays an error with its number and the prefix "E". In addition, the actual error is displayed
in parameter P700. The last error messages are stored in parameter P701.
If the cause of the fault is no longer present, the error display in the ControlBox flashes and the fault can be
acknowledged with the Enter key.
8.2 Table of possible error messages
Display
in the ControlBox Error
text in the Parameter Box
Cause
•
Remedy Group Detail in
P700 / P701
E001 1.0 Inverter overtemperature Error signal from output stage module (static)
• Reduce ambient temperature (<50°C or <40°C , see
also Chap. 9 Technical data)
E002 2.0 Overtemperature motor
(PTC)
Only if a digital input is
programmed (Function 13).
Motor temperature sensor has triggered
• Reduce motor load
• Increase motor speed
• Use motor external fan
2.1
Motor overtemperature (I
2
t)
Only if I 2 t - Motor (P535) is
programmed.
I 2 t - Motor has triggered
• Reduce motor load
• Increase motor speed