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

Commissioning
4.9 Acceptance test - Completion of commissioning
4.9.5.1

Safe Torque Off, STO (Basic Safety)

Table 4- 8 "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.
4. Select STO while the motor is running
Note: Test each configured activation, e.g. via digital inputs and PROFIsafe.
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.
170
Description
Safety Integrated Function Manual, SINAMICS G120 and G120C
Function Manual, 01/2011, FW 4.4, A5E03052391B AB
Status