ABB ACS880 Series Manual page 55

Start-up and validation test 55
Action
Make sure that the FSO STO function is configured and validated.
Internal monitoring of the FSO module can trigger the STO function even if you have not defined an
external request signal. The STO function must be validated before other safety functions.
Note: If parameter S_ENCGEN.11 is set to Est switch not active load, both STO function with speed
estimate and STO function with encoder feedback must be tested - most importantly, the value of
parameter STO.14 must be set according to the application requirements.
For the SLS and SMS functions: Make sure that SSE parameters are set and SSE function is validated
for trip limit situations as described in the FSO module user's manual.
Checks and settings with no voltage connected
Stop the drive and do the steps in section Electrical safety precautions (page 9) before you start the
work.
If you have done any connections on site, check the connections against the applicable circuit diagrams.
Inverter units with parallel R8i inverter modules:
Make sure that the XSTO.OUT output on the inverter control unit [A41] is chained to the STO inputs of
all inverter modules.
Settings with voltage connected
Close the cabinet doors and power up the drive. See the hardware manual.
Make sure that the parameter settings related to the safety functions are correct. See chapter Parameter
settings.
For the SMS function:
• Make sure that the SMS function is active (parameter SMS activity and version is set to value Version
1).
• Set parameter SMS.14 SMS trip limit positive to half of the value that will be used in the application.
• Set parameter SMS.13 SMS trip limit negative to zero.
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For more information, see section Parameters for the SMS function (page 46).
For the SSM function: For more information, see section Parameters for the SSM function (page 46).
Create a backup file of the drive (button Backup/restore in the Drive composer pro PC tool).
Save the FSO safety file (button Save safety file in the Drive composer pro PC tool).
Note: The FSO safety file is not included in the drive backup process.