Functions
7.10 Safe Torque Off (STO) safety function
Inverter with CU240B-2 and CU240E-2 Control Units
224 Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
7.10.8 Acceptance test - following completion of commissioning
7.10.8.1 Prerequisites and authorized persons
Requirements for acceptance tests are derived from the EC Machinery Directive and
ISO 13849-1.
● Check the safety-related functions and machine parts following commissioning.
● Issue an "Acceptance certificate" which describes the test results.
Prerequisites for the acceptance test
● The machine is properly wired.
● All safety equipment such as protective door monitoring devices, light barriers or
emergency-off switches are connected and ready for operation.
● Commissioning of the open-loop and closed-loop control must be complete. These
include, for example:
– Configuration of the setpoint channel.
– Position control in the higher-level controller.
– Drive control.
Authorized persons
Authorization within the scope of the acceptance test is a person authorized by the machine
manufacturer who, on account of his or her technical qualifications and knowledge of the
safety functions, is in a position to perform the acceptance test in the correct manner.
7.10.8.2 Complete acceptance test
A complete acceptance test includes the following:
1. Documentation
– Description of the machines and overview/block diagram
– Safety functions of the drive
– Description of safety equipment
2. Function test
– Test of the shutdown paths
– Test of safety functions used
3. Conclusion of the report
– Inspection of safety function parameters
– Recording of the checksums
– Verify the data backup
– Countersignatures
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