Error detection function – IDEC FS1A Controller User Manual
Page 142

5-101
O
n
I
n
Y
n
Preset OFF-delay time:0.1~30s
Ⅰ
Ⅱ
Y
n'
Y
m
Ⅱ
Ⅲ
Y
n
:Safety output
Y
n'
:Monitor output(Safety output)
Y
m
:Monitor output(EDM input)
① 1s
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Fig. 5-29 Operation timing of safety output with timer
O
n
I
n
Y
n
EDM monitor time:Max.1s
①
Ⅳ
Y
n'
Y
m
SafetyOne changes to the
Protection after an input
monitor error is detected.
The monitor output corresponding
to the input which occur error
becomes pulse output (1Hz).
0.5s
0.5s
Ⅱ
Yn:Safety output
Ym:Monitor output(EDM input)
ON
OFF
ON
OFF
ON
OFF
ON
OFF
ON
OFF
Fig. 5-30 Operation timing when EDM input error occurs
Error detection function
EDM input monitoring
When the following condition is satisfied, the SafetyOne changes to the Protection state and
displays "1" in the error LED display.
(1) When the EDM input does not turn ON within the EDM monitoring time (1 s) after the hold
input turns ON
The input LEDs blink and the monitor output (Y
m
) transmits pulses (1Hz), to notify the operator of
the corresponding external device monitor input.