Using The Application - Siemens SIMATIC ET200SP Function Manual

5.2

Using the application

Starting a machine
No. Action
1 Close the protective door.
2
Move the toggle switch into the position that
locks the protective door.
3
Unlock the emergency stop button.
4 Press the start pushbutton.
Unlock and open the protective door
No. Action
1 Move the toggle switch into the position
that unlocks the protective door.
2 Wait for the parameterized delay time
before unlocking the protective door.
4
Open the protective door.
Acknowledging other faults in the safety function
If another fault occurs in the safety function, the machine is immediately switched off and a
restart is prevented. Proceed as follows to acknowledge the fault.
Possible faults that are acknowledged in this way include:
• Cross circuit between the two emergency stop channels.
• External voltage on the fail-safe outputs
• Withdrawing a fail-safe module
• Contact welding of a contactor
No. Action
1 Check the LEDs on the fail-safe modules. If one
red LED illuminates, a fault in the hardware has
been detected. Search for the fault by means of
the online diagnostics in the TIA Portal.
2 If all LEDs are green, the safety program has
detected a fault. Look at the variable table to
find the fault.
3
Eliminate the fault.
4 Close the protective door.
5 Unlock the emergency stop button.
6
Move the toggle switch to lock the protective
door.
7
Press the start pushbutton.
Safety engineering with AS‑Interface in the SIMATIC ET 200SP, including typical circuit diagram
Function Manual, 08/2020, A5E44991382002A/RS-AB/002
Note
The voltage in the solenoid is switched off and the locking
mechanism moves into the actuator. The protective door is locked.
After the emergency stop button has been unlocked,
acknowledgment is required. The machine starts.
Note
The machine switches off and runs down.
In this example: 5 seconds
After the time has expired, the solenoid is supplied with power, and
moves the locking mechanism out of the actuator. The protective
door is unlocked.
Note
The #fault and #ackReg variables of the
ProtDoorWithInterlocking block instructions can help with the
search.
The voltage in the solenoid is switched off and the locking
mechanism moves into the actuator.
Passivated channels of the fail-safe modules are re-integrated.
Faults detected by the safety program are acknowledged. The
machine starts.
Commissioning and operation
5.2 Using the application
53