Safe Torque Off, Sto (Extended Safety) - Siemens SINAMICS G120 Function Manual

No.
5.
Check the following:
If a mechanical brake is not available, the motor coasts down.

A mechanical brake brakes the motor and holds it to ensure that it remains at a standstill.
The inverter indicates neither faults nor alarms for safety functions.

The inverter indicates:

"STO is selected" (r9773.0 = 1).
"STO is active" (r9773.1 = 1).
6. Deselect STO.
7. Check the following:
The inverter indicates neither faults nor alarms for safety functions.

The inverter indicates:

"STO is not selected" (r9773.0 = 0).
"STO is not active" (r9773.1 = 0).
The inverter is in "Closing lockout" state (p0046.0 = 1).

8. Switch the motor off (OFF1 command) and then on again (ON command).
9. Ensure that the correct motor is running.
4.8.5.2

Safe Torque Off, STO (Extended Safety)

The following is checked during the function test:
● The hardware is functioning properly.
● The digital inputs of the inverter are assigned correctly for the safety function.
● The PROFIsafe address of the inverter is set correctly.
● The safety function is parameterized correctly.
● Routine for forced dormant error detection of the switch-off signal paths on the Control
Procedure
Table 4- 5 "Safe Torque Off" (STO) function
No.
1. Initial state
The inverter is in "Ready" state (p0010 = 0).
The inverter indicates neither faults nor alarms for safety functions (r0945, r2122, r2132).
STO is not active.
2. Switch on the motor (ON command).
3. Ensure that the correct motor is running.
Safety Integrated Function Manual, SINAMICS G120
Function Manual, 07/2010, FW 4.3.2, A5E03052391B AA
Unit.
Note
Perform the acceptance test with the maximum possible speed and acceleration.
4.8 Acceptance test - Completion of commissioning
Description
Description
Commissioning
Status
Status
121