Rockwell Automation 21G PowerFlex 750-Series AC Drives Reference Manual - Manual (Page 39)

Rockwell Automation Publication 750-RM001F-EN-P - February 2012 39
Speed Monitoring I/O Signals Chapter 4
Enabling Switch Monitor Input (ESM_In)
The ESM_In input is intended to be connected to an enabling switch. A 440J-
N21TNPM enabling switch is recommended. The safety option uses the
ESM_In input as a safety enable only, not for control. The ESM_In inputs
function and monitoring is performed by the first unit in multi-axis systems.
The ESM_In input ON state is used to enable motion under mode-specific
conditions in the Safety Limited Speed with Enabling Switch (Lim Speed ES)
and Safe Limited Speed with Door Monitoring and Enabling Switch Monitoring
(LimSpd DM ES) modes.
Refer to Safe Limited Speed with Door Monitoring Mode on page 81 and Safe
Limited Speed with Door Monitoring and Enabling Switch Monitoring Mode
on page 86 for the conditions that must be true to start monitoring the ESM_In
input.
If the ESM_In input is OFF while it is being monitored, an ESM Monitoring
fault (Stop Category Fault) occurs and the safety option initiates the configured
Safe Stop Type.
Refer to Chapter 12 for information on faults and how to recover from them.
Lock Monitor Input (LM_In)
The LM_In input verifies that the guardlocking solenoid switch is locked. It is
intended to confirm the door control function.
The LM_In input is monitored by the first unit in multi-axis systems.