Safe, Limited speed with enabling switch monitoring mode – 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 7
Safe Limited Speed (SLS) Modes
Safe Limited Speed with
Enabling Switch Monitoring
Mode
When properly configured for Safe Limited Speed with Enabling Switch
Monitoring, the drive performs Safe Limited Speed (SLS) monitoring functions
as described in
in addition to the
Safe Stop functions as described in
In addition, the drive monitors the Enabling Switch Monitor input (ESM_In)
after the Safe Limited Speed Monitoring Delay times out. Once the enabling
switch is activated, the ESM_In input must remain ON while Safe Limited
Speed monitoring is active or an ESM Monitoring fault occurs. An ESM
Monitoring fault is a Stop Category fault that initiates the configured Stop
Category.
Safe Stop Reset (SS Reset) and Safe Limited Speed Reset (SLS Reset)
If an ESM Monitoring Fault occurs due to the ESM_In input turning OFF
(enabling switch is released), the drive can be reset without cycling the SS_In
input. To perform an SLS Reset, first return the ESM_In input to ON (grip the
enabling switch in the middle position). Then, press and release the reset button.
In this case, only the SS_In input does not need to be cycled to reset the drive
following a fault.
While Safe Limited Speed is being monitored after the [Safe Limited Speed
Monitor Delay] times out, if the SLS_In input is ON and an SLS Reset occurs,
the ESM_In is not monitored.
If you attempt an SS Reset when the SLS_In input is OFF and the ESM_In input
is OFF, an ESM Monitoring fault occurs. An ESM Monitoring fault is a Stop
Category fault that initiates the configured Stop Category.
IMPORTANT
When Safe Limited Speed Monitoring is inactive, the ESM_In input is not
monitored.
ATTENTION: Make sure that the SLS_In input cannot transition to ON while
someone is in the hazard area.
Use appropriate procedures when selecting safe limited speed to prevent other
users from changing the mode while personnel are in the machine area.