When the XWRN input detects a motor overtemperature situation,
the FPTC-02 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-02 module, it is
possible that the user 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 53).
Note: The reset function of the safety function is not SIL classified.
Indications of the safety function
An indication of the safety function can come from several sources:
1. LED indications on the FPTC-02 module:
• The Fault LED is red when motor temperature is outside the
permitted (safe) temperature range (XFLT input).
• The WARNING LED is red when motor temperature is outside
the temperature warning range (XWRN input).
2. Safe motor temperature fault (XFLT) or motor temperature
warning (XWRN) in the drive.
3. STO indication in the drive:
• The drive STO indication is active when the SMT safety
function has activated the drive STO function. The type of
the indication is set with parameter 31.22.
4. STO indication in the FSO module:
• The STO LED is green when the safety function has activated
the drive STO.
5. STO indication from the FSO module to the drive:
• The FSO module sends an indication to the drive when the
FSO module activates the drive STO. The type of the
indication is set with parameter FSOGEN.61.
To avoid parallel indications, set the STO indication parameters (31.22
and/or FSOGEN.61) to value None/No indication or Event. See
chapter Parameter settings for instructions.
32 Option description and instructions
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