Advanced commissioning
7.9 Safe Torque Off (STO) safety function
Converter with control units CU250D-2
Operating Instructions, 04/2015, FW V4.7.3, A5E34261542B AB
269
Acceptance test of the machine or plant
The acceptance test checks whether the safety-relevant functions in the plant or machine
function correctly. The documentation of the components used in the safety functions can
also provide information about the necessary tests.
Testing the safety-related functions includes e.g. the following:
●
Are all safety equipment such as protective door monitoring devices, light barriers or
emergency-off switches connected and ready for operation?
●
Does the higher-level control respond as expected to the safety-relevant feedback signals
of the inverter?
●
Do the inverter settings match the configured safety-relevant function in the machine?
Acceptance test of the inverter
The acceptance test of the inverter is a part of the acceptance test of the entire machine or
plant.
The acceptance test of the inverter checks whether the integrated drive safety functions are
set up correctly for the planned safety function of the machine.
You can find examples for the acceptance test of integrated drive safety functions in section:
Recommended acceptance test (Page 381).
Documentation of the inverter
The following must be documented for the inverter:
●
The results of the acceptance test.
●
The settings of the integrated drive safety functions.
The commissioning tool STARTER logs the settings of the integrated drive functions, if
necessary. See also Section: Documents for acceptance (Page 270).
The documentation must be signed.
Who may perform the acceptance test of the inverter?
Personnel from the machine manufacturer, who, on account of their technical qualifications
and knowledge of the safety functions, are in a position to perform the acceptance test in the
correct manner are authorized to perform the acceptance testing of the inverter.
