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LOGIC
5-320
Error detection function
Input monitoring
When an error is detected at the inputs, the SafetyOne changes to the Protection state and
displays "1" on the error LED display. The condition to be detected as an input error is shown
below.
●When an input monitoring error detection time (0.5s) is exceeded while both of the 2 input
conditions are ON.
The input LEDs blink and the monitor output (Y
m
) outputs pulses (1Hz), to notify the operator of the
corresponding input. See Fig. 5-10.
Short circuit detection
When an input error, such as a short circuit, or a circuit failure, is detected, the SafetyOne changes
to the Stop state and display "2" on the error LED display.
The input LEDs blink and the monitor output (Y
m
) outputs pulses (1Hz), to notify the operator of the
corresponding input.
Noise detection filter
The SafetyOne is tested acording to IEC/EN 61000-6-2, however in the case when the SafetyOne
is used in an environment with severe noise, the SafetyOne changes to the Stop state and displays
"9" on the error LED display.
Warning
Safety check signals (pulses signals) are supplied from the drive circuits (T
n
) to diagnose
connected safety devices and input circuits. Safety check signals can not be used as a power for
connected devices.
Note. Drive circuit “T
n+1
” is always OFF.
Содержание FS1A-C11S
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