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LOGIC
5-312
Error detection function
Input monitoring and grounding detection
When an error is detected between dual channel inputs, the SafetyOne changes to the Protection
state and displays "1" on the error LED display. The conditions to be detected as input errors are
shown below.
●When the input monitor error detection time (0.5s) is exceeded during 2 input conditions or do not
match (namely ON/OFF or OFF/ON).
●
When there is an independent condition change at 1 of the inputs.
●When the ON state input circuit has been grounded.
The input LEDs blink and the monitor output (Y
m
) outputs pulses (1Hz), to notify the operator of the
corresponding input. See Fig. 5-2.
Short circuit
When an input error, such as a short circuit, or circuit failure, is detected, the SafetyOne changes to
the Stop state and displays "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 transmitted 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.
Содержание FS1A-C11S
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