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Entry type: Application example Entry ID: 65569732, Entry date: 01/29/2013
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SINAMICS S: Control of the Safety Integrated Basic Functions of a S120 via onboard terminals

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Task
A plant is to be safely shut down after actuation of the emergency stop button, whereby each drive is to be switched torque-free.
This is to be implemented with the safety functions integrated in the SINAMICS S120, which can be controlled without additional hardware.

Solution
The control of the STO and SS1 Basic Functions on a SINAMICS S120 drive line-up is shown in this function example.
The drive line-up in the booksize format comprises an infeed and a Double Motor Module. The two servomotors, which are independent of one another, are controlled from the Double Motor Module. A Smart Line Module is used as infeed.

The -S1 two-channel emergency stop mushroom pushbutton is connected to the Control Unit and the EP terminals of the Double Motor Module (-X21 and -X22). To do this, one channel is connected to an arbitrary digital input of the Control Unit, e.g. to DI 2. The other channel is connected to the EP terminals of the Motor Module (terminals 3 and 4). This wiring ensures two independent shutdown paths, which guarantees the safety category SIL2, PL d, Cat. 3.
When an emergency stop (-S1) is required, drive 1 is shut down with the drive-integrated STO function and drive 2 with SS1.

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STARTER project 65569732_MC_FE_I_015_V10.zip ( 687 KB )
SET project according IEC 62061 65569732_MC_FE_I_015_en62061_V10.zip ( 4 KB )
SET project according ISO 13849 65569732_MC_FE_I_015_iso13849_V10.zip ( 3 KB )
Documentation 65569732_MC_FE_I_015_V10_EN.pdf ( 1945 KB )

 

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