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KFU 2-/4-
228
18.1.1 STO
Status
Parameter
STO Status
277
can be used for an extended diagnosis of the two digital
inputs STOA and STOB. The states of the inputs are bit coded displayed.
Bit
Significance
Function
0
1
Input STOA is missing.
1
2
Input STOB is missing.
2
4
Switch off input STOA.
3
8
Switch off input STOA.
4 16
Timeout
STOA.
5 32
Timeout
STOB.
6 64
Diagnosis
error.
7
128
Frequency inverter error (Fault)
The signal statuses at the digital inputs STOA and STOB can be linked with inverter
functions.
292 - STOA
Signal status at digital input STOA
284 - STOA inverted
Inverted signal status at digital input STOA
293 - STOB
Signal status at digital input STOB
285 - STOB inverted
Inverted signal status at digital input STOB
For further instructions refer to the application manual „STO – Safe torque off”.