Lenze E94AxPExxxx - Manual (Page 409)

Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
409
11 Safety engineering
11.3 System block "LS_SafetyModuleInterface"
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11.3.1 Status information
Via the bit-coded status signal SMI_dnState of the LS_SafetyModuleInterface SB, the SM3xx safety
module transmits the status of safety functions to the application.
• Which bits are supported depends on the safety module used.

Tip!
For decoding the status signal into individual boolean status signals, simply connect the
output SMI_dnState to the L_DevSMStateDecoder FB which is available in the function
library from V2.0.
Bit coding of the status signal SMI_dnState
Bit Name Meaning
0 STO "Safe torque off (STO)" function is active.
• The drive is safely switched to torqueless operation.
3 EC_STO Error stop category 0: "Safe torque off (STO)" function is active.
4 EC_SS1 Error stop category 1: "Safe stop 1 (SS1)" function is active.
5 EC_SS2 Error stop category 2: "Safe stop 2 (SS2)" function is active.
8 SLS1 monitored Safely limited speed 1 is activated and complied with.
9 SLS2 monitored Safely limited speed 2 is activated and complied with.
10 SLS3 monitored Safely limited speed 3 is activated and complied with.
11 SLS4 monitored Safely limited speed 4 is activated and complied with.
12 SDIpos monitored Safe positive direction of rotation (SDIpos) is activated and complied with.
13 SDIneg monitored Safe negative direction of rotation (SDIneg) is activated and complied with.
14 Fault active SM3xx safety module has the error status (trouble or warning).
Bits not listed are reserved for future extensions!