ABB FPTC-02, Руководство пользователя

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Note: The indications of the safety function are not SIL classified.
Fault reaction function
￭ FPTC-02 module
The FPTC-02 module has a fault reaction function. When the module
detects an internal fault or a fault in the temperature sensor circuit,
it sends a request to the drive control unit to stop modulation, and
activates the drive STO function.
￭ STO function in the drive/inverter modules
The STO function in the drive/inverter module has internal fault
diagnostics and a fault reaction function. The fault reaction function
causes a fault trip if it detects a redundancy fault of STO control
signals or any internal failure. For more information, see the hardware
and firmware manuals of the drive/inverter module.
￭ FSO module
The fault reaction function of the FSO module trips the drive if it
detects a failure. The FSO module activates the STO or Safe stop
emergency (SSE) function. This activates the drive STO function.
The drive STO function is active until the fault is repaired.
Note: With the FPTC module, the recommended type of the SSE
function is Immediate STO , but other safety functions in the FSO
module can require that the type is Emergency ramp . With both
settings, the FSO module always activates the drive STO function
immediately in motor overtemperature situations (SMT function
activated).
The FSO module goes into the Fail-safe mode. The FSO module
LED STATUS/FAULT is red until the fault is repaired. To exit the
Option description and instructions 33