5-96
External device monitoring input
This function is for monitoring external devices controlled by the SG-ONE. External devices can
be diagnosed for errors by connecting a NC contact, such as a contactor or a safety relay. As
shown in Fig. 5-15, this function is comprised of an input receiving circuit (X
n
), drive circuit (T
n
),
and functional output.
Fig. 5-15 Circuit for external device monitor input function
Connects to
NC contact on devices such as a contactor, safety relay, or other devices equipped with forced
guided mechanisms
Note: Solid state output devices cannot be connected.
Description of operation
IWhen a safety check signal from the drive circuit is supplied correctly to the receiving circuit,
the output is turned ON. (Ex. External device is turned OFF.)
IIWhen safety check signal input to the receiving circuit is turned OFF, the output is turned OFF.
(Ex. External device is turned ON.)
IIIIf the safety check signal is not supplied correctly to the receiving circuit due to an error in an
external device or input circuit, the output is turned OFF immediately. Status of the detected
error is displayed on error LED, input LED, and monitor output. (Ex. Fault in external device
or wiring error)
Error detection function
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.
X
n
T
n
External device
I
n
External Device
Monitor
EDM
Содержание SG EASY One
Страница 1: ...Safety Control Unit INSTRUCTION MANUAL...
Страница 12: ...2 2 Dimensions 120 0 1 7 1 5 133 5 113 5 122 0 109 5 114 5 72 0 Locking hole Detail of locking hole...
Страница 34: ......
Страница 70: ...5 28 Using an DATALOGIC AUTOMATION light curtain SE series as S1 S2...
Страница 71: ...5 29 Timing chart Logic 3...
Страница 74: ...5 32 Logic circuit Logic 4...
Страница 80: ...5 38 Timing chart Logic 4...
Страница 81: ...5 39...
Страница 103: ...5 61 Operation example Logic 7 Machine running Machine stop danger zone A Movable guard A is opened...