User's Manual

32 Rockwell Automation Publication 440G-UM004C-EN-P - August 2020
Chapter 7 Application Examples
Circuit Status as Shown
The gate is open and unlocked. The motor is off. The GLP safety relay is ready
for reset. The GLP safety relay has a Logic setting of 3: (Safely-limited Speed
with Logic IN OFF), a Safely-limited Speed (SLS1) setting of 5 (5 Hz) and a
maximum (SLS2) speed setting of 8 (2000 Hz). The safety outputs (X14 & X24),
the single wire safety output (L11), and the auxiliary output (Y32) are OFF.
Starting
Close the gate and press Reset to lock the gate and turn on the GLP safety
outputs. Press Start to turn the motor ON.
Safely-limited Speed
A normal production stop is performed by pressing Stop. Access through the
safety gate is initiated by pressing Gate Unlock Request. The Y32 output of the
GLP safety relay turns ON, which makes an SLS request to the PAC. The PAC
commands the Kinetix® drive to bring the motor to a safe slow speed. When
the proximity sensors detect the speed has dropped below the Safely-limited
Speed (5 Hz), the gate becomes unlocked. The operator can enter the machine
cell, as the motor continues to run at the safe slow speed. After you leave the
cell and close the gate, press Reset to lock the gate and return the machine to
production speeds.
The circuit meets the safety requirements up to Category 3, Performance
Leveld in accordance with ISO 13849-1 and SIL CL 2 in accordance with
IEC 62061.
IMPORTANT Start the GLP logic configuration from “0” to configure X14 and X24 for use as
safety outputs.