Rockwell Automation 2094-EN02D-M01-S1 Kinetix 6200 and Kinetix 6500 Safe Speed Monitoring Safety Reference Manual - Manual (Page 37)

Rockwell Automation Publication 2094-RM001C-EN-P - May 2013 37
Speed Monitoring I/O Signals Chapter 4
For a single unit system or the last unit in a cascaded system, the SLS_Out is
intended to be connected to an input of a safety programmable logic controller
(PLC). The same PLC could also control the Safe Stop function with a safe PLC
output connected to the Safe Stop input (SS_In).
For the first or middle units in a cascaded system, the SLS_Out is intended to be
connected to the Safe Limited Speed input (SLS_In) of the next drive in the
cascaded system. This lets one SLS switch enable Safe Limited Speed on all axes
at the same time.
Figure 7 - SLS_Out to SLS_In Connections for Multi-axis Applications
For more information on multi-axis configurations, see Cascaded Configurations
starting on page 89 .
For Safe Limited Speed Status Only modes, the SLS_Out output is used as an
indication that the Safe Limited Speed monitoring is active and the monitored
speed is less than the configured Safe Speed Limit. If the speed is greater than or
equal to the Safe Speed Limit, the SLS_Out is turned OFF. When Safe Limited
Speed monitoring is not active or the drive is in a SLS Monitoring Delay, the
SLS_Out output is OFF. The SLS_Out output is turned OFF when a Safe Stop
has been initiated, a fault has occurred, or the drive is in the safe state.
See Safe Limited Speed Status Only Mode on page 84 for more information.
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 .
Drive (Master)
SLS_OUT_CH0 SLS_OUT_CH1
Drive (Slave)
SLS_IN_CH0 SLS_IN_CH1
IOD-29 IOD-30
IOD-24 IOD-23