5-84
Error detection function
Input monitoring
When an error is detected between dual channel inputs, the SG-ONE changes to the Protection
state and displays "1" on the error LED display. The conditions to be detected as input errors are
shown below.
(1) 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).
(2) When there is an independent condition change at 1 of v the inputs.
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 and grounding detection
When an input error, such as a short circuit, grounding, or circuit failure, is detected, the SG-ONE
changes to the Stop state and displays "2" on the error LED display.
Noise detection filter
When the SG-ONE is used in an environment with severe noise, the SG-ONE 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 power for
connected devices.
Summary of Contents for SG EASY One
Page 1: ...Safety Control Unit INSTRUCTION MANUAL...
Page 34: ......
Page 70: ...5 28 Using an DATALOGIC AUTOMATION light curtain SE series as S1 S2...
Page 71: ...5 29 Timing chart Logic 3...
Page 74: ...5 32 Logic circuit Logic 4...
Page 80: ...5 38 Timing chart Logic 4...
Page 81: ...5 39...
