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Option description and instructions 27
Commissioning the drive for a motor in a hazardous
area
Commission the drive according to the requirements and limitations
set by the application, the motor manufacturer's instructions, drive
firmware manual, local laws and regulations and this manual.
The certificate of the Ex motor typically requires that you set a
minimum limit for the output switching frequency of the drive. Make
sure that the Ex motor is operated above the minimum output
switching frequency specified by the motor manufacturer.
Resetting the safety function
The Ex regulations require that the safety function must be reset
manually. When the XFLT input detects a motor overtemperature
situation, the FPTC-01 module generates a fault to the drive. You
must reset the drive before it is possible to restart the drive.
When the XWRN input detects a motor overtemperature situation,
the FPTC-01 module generates a warning to the drive. This is not a
safety-related function, and does not need a reset.
If an FSO module is used together with the FPTC-01 module, it is
possible that you must reset the safety function also with a reset
button connected to the FSO module. This depends on parameter
settings and other safety functions in the FSO module. For more
information, see section
FSO module (page
48).
Note: The reset function of the safety function is not SIL classified.
Indications of the safety function
The possible indications of the safety function are:
1. LED indications on the FPTC-01 module:
• The FAULT LED is on when the motor temperature is outside
the permitted (safe) temperature range (XFLT input).
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