Lenze E94AYAE SM301 - Manual (Page 10)

2 Introduction
2.1 Terms and abbreviations used in drive-based safety
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Lenze · SM301 safety module · Parameter setting & configuration · DMS 2.3 EN · 11/2013 · TD05
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2.1 Terms and abbreviations used in drive-based safety
Abbreviation Meaning
9400 Lenze servo controller
EC_STO Error class stop 0
EC_SS1 Error class stop 1
EC_SS2 Error class stop 2
EC_FS Error class fail-safe
Cat. Category in accordance with EN 954-1
OSSD Output Signal Switching Device, tested signal output
PS PROFIsafe
PWM Pulse width modulation
SD-In Safe input ("Safe Digital Input")
SD-Out Safe output ("Safe Digital Output")
SIL Safety Integrity Level in accordance with IEC 61508
SM Safety module
Optocoupler supply Supply of optocouplers to control the power drivers
PELV Protective Extra Low Voltage
SELV Safety Extra Low Voltage
OFF state Signal state of the sensors when they are activated or respond.
ON state Signal state of the sensors in normal operation
PM P/N switched signal paths
PP P/P switched signal paths
GSD File with device-specific data for establishing PROFIBUS communication
GSDML File with device-specific data for establishing PROFINET communication.
AIS Restart acknowledgement ("Acknowledge In Stop")
AIE Error acknowledgement ("Acknowledge In Error")
Abbreviation Safety function
SDI Safe direction
SLI Safely limited increment
SLS Safely limited speed
SOS Safe operating stop
SS1 Safe stop 1
SS2 Safe stop 2
SSM Safe speed monitor
STO Safe torque off
• Formerly: safe standstill
SMS Safe maximum speed
SSE Safe stop emergency
ES Enable switch
OMS Operation mode selector