Danfoss VLT MCB 150 Operating Instructions Manual
Also see for VLT Safety Option MCB 150: Installation guideInstallation guide
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Contents
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7.4.3 Safety Functions of the Frequency ConverterCommissioning test reportAfter making e.g. LCP copy of safe parameters a commissioning test is required. Use this short version of the commissioningtest report to follow and approve the test sequence.Safety functions Test procedure Approved ☑Safe Torque Off (STO)1. Safe Torque Off function must be disabled- via DI1.- via DI2.- Check the Safe Torque Off circuit connections against thecircuit diagram.2. No safety faults and alarms.3. Run the frequency converter.4. Ensure that the correct frequency converter is running.5. Select Safe Torque Off while the frequency converter is running.6. Check the following- The frequency converter coasts to zero speed.- The motor is braked and stopped by the mechanical brake(if available and configured).- Warning/Alarm 68 is displayed.7. Deselect Safe Torque Off.8. Check the following- Depending on the configuration, Safety Func. Pending isdisplayed.- Safe Torque Off deselected and inactive.9. Restart the frequency converter and check that the motor runsnormally.10. Ensure that the Safe Torque Off function is safe and accepted tooperate.11. Document and sign the commissioning test report.Table 7.3 Commissioning Test Report, Safe Torque OffService and Repair Operating InstructionsMG34W302 Danfoss A/S © Rev. 2014-02-11 All rights reserved. 537 7 |
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