Lenze E84Dxxxxx - Manual (Page 29)

Lenze · 8400 protec · Drive-based safety · Software Manual · DMS 2.4 EN · 05/2013 · TD05
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3 Safe configuration
3.5 Safety functions
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3.5.1.3 Emergency stop function (SSE)
3.5.1.4 Safe torque off (STO)
Safe Stop Emergency / SSE
Description
The emergency stop function starts STO or SS1 , depending on the setting of the "emergency stop
function" parameter.
 • In special operation the emergency stop cannot be avoided.
• Connect the emergency stop buttons, which must not be overruled by a 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 ( 33)
• "OFF state" at a safe input which has been assigned to the function by parameter setting.
 Safe inputs ( 42)
Safe torque off / STO (corresponds to a "Stop 0" according to 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 ( 28)
Priority Priority function: none
Subordinated function: SS1
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 ( 33)
• "OFF state" at a safe input which has been assigned to the function by parameter setting.
 Safe inputs ( 42)
• As response to the error stop request.
• As response to the emergency stop request.
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STO