10 Rockwell Automation Publication 440R-UM012E-EN-P - November 2018
Chapter 1 Overview
The optical communication bus is on the sides of the housing. The GLP
safetyrelay operates with the catalog number 440R-ENETR EtherNet/IP™
network interface to transmit its status to the machine control system over an
EtherNet/IP network.
The GLP safety relay can be operated with other safety relays in the GSR
family by use of the single wire safety (SWS) connection. When the GLP safety
relay receives an SWS signal from other GSR relays, the GLP safety relay issues
an Unlock command. When the GLP safety relay turns ON its safety output, it
also turns ON its SWS output for use by other GSR safety relays.
Logic Functions
The GLP safety relay can be configured to operate in one of eight logic safety
functions.
Logic Setting 1 - Cat 1 Stop, Logic IN Off
You initiate a stop command by pressing the unlock push button. The GLP
safety relay issues an immediate stop command from the Y32 auxiliary output
to the machine control system. When the GLP safety relay determines that the
proximity sensor speed has dropped below the SLS1 setting, it starts the
Frequency Measuring Timer that SLS1 specifies. If the proximity sensor speed
remains below the SLS1 setting, the GLP safety relay turns OFF its safety
outputs and powers the guard locking interlock through 51 and L61 to unlock
the gate.
If the proximity sensor speed does not decrease below the SLS1 setting, the
GLP safety relay continues to wait with the 51/L61 status indicator flashing,
and the safety gate remains locked. Once the proximity sensor speed drops
below SLS1 setting, the GLP safety relay begins the Frequency Measurement
timer. The proximity sensor speed must remain below SLS1 during the
Frequency Measurement timer.
The SWS signal at wiring terminal L12 is ignored.
Logic Setting 2 - Cat 1 Stop with Logic IN
You initiate a stop command by either pressing the unlock push button or
turning off the single-wire safety signal at wiring terminal L12. The GLP safety
relay issues an immediate stop command from the Y32 auxiliary output to the
machine control system. When the GLP safety relay determines that the
proximity sensor speed has dropped below the SLS1 setting, it starts the
Frequency Measuring Timer that SLS1 specifies. If the proximity sensor speed
remains below the SLS1 setting, the GLP safety relay turns OFF its safety
TIP If the Reset button is pressed within the Frequency Measuring Time, the
GLP safety relay turns the Y32 auxiliary output back ON.
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