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Safety Integrated for SINAMICS G120D
The PM250D Power Modules are generally prepared for Safety Integrated.
In conjunction with a standard Control Unit, the drive provides the safety function STO.
In conjunction with a fail-safe Control Unit, the drive can be turned into a Safety Integrated Drive with comprehensive safety functions.
The Safety Integrated functions are completely integrated into the drive system. They can be activated via fail-safe digital inputs on the Control Unit or via PROFINET or PROFIBUS with PROFIsafe.
The Safety Integrated functions are implemented electronically and therefore offer short response times in comparison to solutions with externally implemented monitoring functions.
Safety Integrated encoderless
The safety functions do not require a motor encoder; the implementation effort is minimal. Existing machines in particular can be updated with integrated safety technology without the need to change the motor or mechanical system.
The STO function can be used without any restrictions for all applications.
The SS1, SLS, SSM and SDI functions are only permissible for applications where the load can never cause acceleration. An encoder that is used for the purposes of motor control has no significance for the safety functions here.
Control Units
The availability of Safety Integrated functions depends on the type of Control Unit. Standard Control Units and fail-safe Control Units are available. All standard Control Units have STO.
The fail-safe Control Units offer Extended Functions (SLS, SDI, SSM) in addition to the Basic Functions (STO, SS1).
The safety functions integrated into the drive can greatly reduce the effort required to implement safety concepts.
The integrated safety functions provide support when setting up tailored safety concepts. Configurations of safety concepts are given below based on the example of the SINAMICS G120D.
Safe Torque Off (STO)
Classic implementation using an external circuit
Integrated safety solution via PROFIsafe
Safe Stop 1 (SS1)
Classic implementation using an external circuit
Integrated safety solution via PROFIsafe
Safely-Limited Speed (SLS)
Classic implementation using an external circuit
Integrated safety solution via PROFIsafe
Function | Control | Underlying function | Reaction to limit overshoot | Encoder required | License required | Available in |
---|---|---|---|---|---|---|
Basic Functions | ||||||
STO | F-DI PROFIsafe | – | – | No | No | CU240D-2 DP CU240D-2 PN CU240D-2 DP-F CU240D-2 PN-F CU240D-2 PN-F PP CU240D-2 PN-F FO CU250D-2 DP-F CU250D-2 PN-F CU250D-2 PN-F PP CU250D-2 PN-F FO |
SS1 time-controlled | F-DI PROFIsafe | Following expiry of the parameterized delay time or if the speed falls below the minimum speed limit STO | STO | No | No | CU240D-2 DP-F CU240D-2 PN-F CU240D-2 PN-F PP CU240D-2 PN-F FO CU250D-2 DP-F CU250D-2 PN-F CU250D-2 PN-F PP CU250D-2 PN-F FO |
Extended Functions | ||||||
SS1 with SBR/SAM | F-DI PROFIsafe | Safe Acceleration Monitor (SAM) or Safe Brake Ramp (SBR) during braking. Following expiry of the parameterized delay time or if the speed falls below the minimum speed limit STO | STO | No | No | CU240D-2 DP-F CU240D-2 PN-F CU240D-2 PN-F PP CU240D-2 PN-F FO CU250D-2 DP-F CU250D-2 PN-F CU250D-2 PN-F PP CU250D-2 PN-F FO |
SLS | F-DI PROFIsafe | – | STO, SS1 (can be parameterized) | No | No | CU240D-2 DP-F CU240D-2 PN-F CU240D-2 PN-F PP CU240D-2 PN-F FO CU250D-2 DP-F CU250D-2 PN-F CU250D-2 PN-F PP CU250D-2 PN-F FO |
SDI | F-DI PROFIsafe | – | STO, SS1 (can be parameterized) | No | No | CU240D-2 DP-F CU240D-2 PN-F CU240D-2 PN-F PP CU240D-2 PN-F FO CU250D-2 DP-F CU250D-2 PN-F CU250D-2 PN-F PP CU250D-2 PN-F FO |
SSM | Always active | – | Signals that the speed has fallen below a specified value | No | No | CU240D-2 DP-F CU240D-2 PN-F CU240D-2 PN-F PP CU240D-2 PN-F FO CU250D-2 DP-F CU250D-2 PN-F CU250D-2 PN-F PP CU250D-2 PN-F FO |
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