Toshiba T300MVi MEDIUM VOLTAGE - Fault and Recovery - Handling Faults

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DATA CONTROL
Setting Data
The parameter setfile is stored in the EEPROM on the main control board. This is non-volatile
memory and will not generally be lost when the drive is powered down. However, this data could be lost if
there is a board failure. If this data is lost, the drive will need to be re-commissioned. For this reason, it is
recommended that the parameter setfile data be backed up in a file stored on a personal computer. This
requires the use of the optional commissioning software. The software and training is available through
Toshiba.
FAULT AND RECOVERY
Cautions when Handling Faults
When a fault occurs, before resetting, understand the fault code. It may be unsafe to restart if a
component or motor has failed. Every effort should be made to determine the cause of the fault and to
correct any problems before attempting to restart the drive.
To do this, it is necessary to record and evaluate the phenomena and conditions of the fault in detail
from both electrical and mechanical standpoints. Collect as much data as possible on the following items to
determine the operation situation when the fault occurred.
1) Record the fault message (fault display) shown on the display/keypad at the moment the fault
occurred.
2) Collection of trace back data. Record the trace back data by PC(option).
3) Operation different from ordinary operation
Check if there was anything that affected the input power supply of the equipment at the moment
the fault occurred (for example, powering-on of large-capacity equipment which is connected to the
common AC power supply or short-circuits, etc.).
4) Power failure
Check if the input power supply of the equipment was disconnected at the time of the fault (for
example, if the line of the AC power supply was switched or if the breaker was turned on or off).
5) Load condition
Check if the load was drastically changed at the time of the fault.
6) Operation
Check to see if any changes in the process or load machinery were made by the operator at the
time of the fault.
7) Installation environment
Check if there was any abnormal ambient conditions present in the electrical room at the time of the
CAUTION