Lenze E94AYAE SM301 - Manual (Page 44)

3 Safe configuration
3.9 Safety functions
44
Lenze · SM301 safety module · Parameter setting & configuration · DMS 2.3 EN · 11/2013 · TD05
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3.9.1.3 Emergency stop function (SSE)
3.9.1.4 Safe torque off (STO)
Safe Stop Emergency / SSE
Description
The emergency stop function starts STO or SS1 , depending on the setting of the "SSE: emergency
stop function" parameter.
 • In special operation the emergency stop cannot be avoided.
• Connect the emergency stop buttons, which must not be overruled by special operation, to
the emergency stop function. For this purpose, parameterise the safe input as "emergency
stop" ( C15031 ).
Parameter C15205 SSE: Emergency stop function
• Selection of the function to be performed ( STO or SS1 ).
Activation How to activate the function:
• A data telegram with a corresponding content is sent to the controller via the safety bus.
 Safety bus ( 59)
• "OFF state" at a safe input which has been assigned to the function by parameter setting.
 Safe inputs ( 34)
Safe Torque Off / STO (corresponds to a "Stop 0" in accordance with EN 60204)
Description
By using this function the power supply for the motor is safely interrupted immediately. The
motor cannot generate a torque and thus no dangerous motions of the drive.
 • Additional measures are required against movements caused by external forces, e.g.
mechanical brakes.
• The restart behaviour can be set.  Restart behaviour ( 43)
Priority Priority function: none
Subordinated function: SS1 , SS2
Function
Parameter Function sequence and error response have no adjustable parameters.
Activation How to activate the function:
• A data telegram with a corresponding content is sent to the controller via the safety bus.
 Safety bus ( 59)
• "OFF state" at a safe input which has been assigned to the function by parameter setting.
 Safe inputs ( 34)
• As response to the error stop request.
• As response to the emergency stop request.
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0
STO