Safe limited speed output (sls_out) – Rockwell Automation 2094-EN02D-M01-S1 Kinetix 6200 and Kinetix 6500 Safe Speed Monitoring Safety Reference Manual User Manual

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Rockwell Automation Publication 2094-RM001C-EN-P - May 2013

Chapter 4

Speed Monitoring I/O Signals

Alternately, the first SS_Out output can be used to signal a programmable logic
controller (PLC) that a Safe Stop has been requested.

If the SS_In is ON (closed) and a successful Safe Stop Reset is performed, the
SS_Out output is turned ON. If Lock Monitoring is not enabled or the door
control logic state is Unlock, the SS_Out signal turns ON immediately when the
SS_In turns ON. If Lock Monitoring is enabled, and the door control logic state
is Lock, the SS_Out signal is not turned ON until the door has been locked by
using the DC_Out signal and the LM_In input has been verified as ON.

If the Stop Category is initiated or if a Safe Stop is initiated due to a fault, the
SS_Out output is turned OFF.

If an error is detected on either channel of the dual-channel output, a fault occurs.
I/O faults are Stop Category faults that initiate the configured Stop Category.
The fault is latched until the drive is successfully reset.

For more information on faults, refer to

Chapter 12

.

Safe Limited Speed Output (SLS_Out)

The safe state for this signal in all cases is OFF.

The SLS_Out output functionality is determined by the configured Operation
mode. If the SLS_In is ON and a successful Safe Stop or Safe Limited Speed reset
is performed, the SLS_Out turns ON in all Safe Limited Speed modes except
Safe Limited Speed Status Only.

For the Safe Limited Speed modes (SLS), the SLS_Out is used to interconnect
speed monitoring drives in multi-axis applications. For SLS_Out to SLS_In
cascaded signals, the interface is a dual-channel sourcing solid state safety output
connected to a dual-channel safety input configured as OSSD.

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