Lenze E94AYAE SM301 - Manual (Page 20)

2 Introduction
2.5 Parameter setting & configuration
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Lenze · SM301 safety module · Parameter setting & configuration · DMS 2.3 EN · 11/2013 · TD05
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2.5.2.3 Control information
Via the bit-coded control signal SMI_dwControl of the SB LS_SafetyModuleInterface the SM301
safety module transmits information about requested/active safety functions to the application.
• Several safety functions can be requested/active at the same time.
Bit coding of the SMI_dwControl status signal
Bit Name Meaning
1 SS1 active Safe stop 1 (SS1) function is active.
• After the parameterised stopping time has elapsed, bit 0 of the status signal
SMI_dnState (STO active) is set.
2 SS2 active Safe stop 2 (SS2) function is active.
• After the parameterised stopping time has elapsed, bit 16 (SOS monitored) is set.
3 SLS1 active Safely limited speed 1 (SLS1) function is active.
• After the parameterised braking time Nlim1 has elapsed, bit 8 of the status signal
SMI_dnState (SLS1 monitored) is set additionally.
4 SLS2 active * Safely limited speed 2 (SLS2) function is active.
• After the parameterised braking time Nlim2 has elapsed, bit 9 of the status signal
SMI_dnState (SLS2 monitored) is set additionally.
5 SLS3 active * Safely limited speed 3 (SLS3) function is active.
• After the parameterised braking time Nlim3 has elapsed, bit 10 of the status
signal SMI_dnState (SLS3 monitored) is set additionally.
6 SLS4 active * Safely limited speed 4 (SLS4) function is active.
• After the parameterised braking time Nlim4 has elapsed, bit 11 of the status
signal SMI_dnState (SLS4 monitored) is set additionally.
7 SDIpos active ** Function Safe positive direction (SDIpos) is active.
• After the parameterised SDI delay time has elapsed, bit 12 of the status signal
SMI_dnState (SDIpos monitored) is set additionally.
8 SDIneg active ** Function Safe negative direction (SDIneg) is active.
• After the parameterised SDI delay time has elapsed, bit 13 of the status signal
SMI_dnState (SDIneg monitored) is set additionally.
9 ES active Enable switch (ES) function for motion functions in special operation is active.
10 SLI is active *** "Safely limited increment (SLI)" function is active.
11 OMS Operation mode selector (OMS) function for special operation is requested.
16 SOS active "Safe operating stop" (SOS) function is active.
• The safe operating stop is monitored.
• The function will be active after the function Safe stop 2 (SS2) has ended.
23 SSE active Emergency stop function (SSE) is active.
• Depending on the parameterisation of the emergency stop function, bit 1 (SS1
active) or bit 0 of the status signal SMI_dnState (STO active) is set after the
function has ended.
29 OMS active * Special operation is active.
* From SM301 V1.1 ** From SM301 V1.3 *** From SM301 V1.4
Bits not listed are reserved for future extensions!

Note!
To effect the corresponding action (e.g. braking to standstill, holding the standstill
position), the application engineer has to provide an appropriate interconnection in the
application.
• To integrate the basic function "Limiter", the output SMI_dwControl is to be
connected to the input LIM_dwControl of the LS_Limiter system block.