18 Option description and instructions
To exit the Fail-safe mode, remove the cause of the fault and reset the FSO module by
switching the power off and on, by pressing the
Boot FSO
button on the
Safety view
of
Drive composer pro or with inverter unit parameter
96.09 FSO reboot
.
For more
information, see the inverter unit firmware manual and the FSO module user’s manual.
FSE module
When a safety function is active, the fault reaction function of the FSO module trips the
inverter unit if it detects a failure in the FSE module. The FSO module activates the STO
function. This activates the drive STO function. The inverter unit STO function is active
until the fault has been repaired.
When there are no active safety functions, the fault reaction function depends on the value
of FSO parameter
FSE diagnostic failure reaction
on page
The FSO module goes into the Fail-safe mode. The FSO module LED STATUS/FAULT is
red and the FSE module LED STATUS is off until the fault has been repaired. Also the
inverter unit indicates some of the FSE module faults.
To exit the Fail-safe mode, remove the cause of the fault and reset the FSO module by
switching the power off and on, by pressing the
Boot FSO
button on the
Safety view
of
Drive composer pro or with inverter unit parameter
96.09 FSO reboot
.
For more information, see the inverter unit firmware manual,
FSO-21 safety functions
module user’s manual
(3AXD50000015614 [English]) and
FSE-31 pulse encoder interface
module user’s manual
(3AXD50000016597 [English]).
Safety encoder
The FSE module indicates the internal faults of the safety encoder as cabling faults. This
activates the fault reaction function in the FSE module. This causes the FSO module to go
into the Fail-safe mode (see previous sections).
The FSO module LED STATUS/FAULT is red and the FSE module LED ENC STATUS is
off until the fault has been repaired. Also the inverter unit indicates the safety encoder
fault.
To exit the Fail-safe mode, remove the cause of the fault and reset the FSO module by
switching the power off and on, by pressing the
Boot FSO
button on the
Safety view
of
Drive composer pro or with inverter unit parameter
96.09 FSO reboot
.
The safety encoder goes into the Safe state. To exit the Safe state, remove the cause of
the fault and reboot the safety encoder (for example, by switching the power off and on).
For more information, see the inverter unit firmware manual,
FSO-21 safety functions
module user’s manual
(3AXD50000015614 [English]) and
FSE-31 pulse encoder interface
module user’s manual
(3AXD50000016597 [English]).
STO function in the inverter units
The STO function in the inverter units has internal fault diagnostics and a fault reaction
function which causes a fault trip in case it detects a redundancy fault of STO control
signals or any internal failure. See the hardware and firmware manuals of the inverter unit.
