SICK ReLy MULT1, Руководство по эксплуатации

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Table 3: Switching behavior of application diagnostic output Y1
State of enabling current paths State of application diagnostic output Y1
Closed LOW (NPN)
Open HIGH (PNP)
Application diagnostic output Y2
Application diagnostic output Y2 outputs the “Reset required” signal with a frequency of
1 Hz, e.g. for the connection of a signal lamp.
Application diagnostic output Y2 is based on the push-pull principle, meaning it can
both absorb and apply current.
4.4.3 Restart interlock
Important information
DANGER
Hazard due to unexpected starting of the machine
Death or severe injury
b
If you connect the safety relay to an emergency stop pushbutton, you must use the
restart interlock.
Restart interlock
A reset pushbutton must be connected to allow the restart interlock to be used. The
reset pushbutton must be attached outside of the hazardous area. It must not be
possible to access the reset pushbutton from inside the hazardous area. The entire
hazardous area must be highly visible for all operators from the reset pushbutton.
Further topics
•
"Device connection", page 19
4.4.4 External device monitoring (EDM)
External device monitoring (EDM)
With static external device monitoring, the safety relay tests whether the controlled
actuators (contactors) have dropped out when the device is switched on.
Further topics
• "Device connection", page 19
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PROJECT PLANNING
14 O P E R A T I N G I N S T R U C T I O N S | ReLy MULT1 8024307/2021-07-30 | SICK
Subject to change without notice