Danfoss VLT MCB 150 Operating Instructions Manual page 56

Service and Repair
Safety functions
Safe Stop 1 time based (SS1)
7 7
Table 7.4 Commissioning Test Report, Safe Stop 1 Time Based
54
Operating Instructions
1. Safe Stop 1 function must be disabled
- via DI1.
- via DI2.
- Check the Safe Stop 1 circuit connections against the circuit
diagram.
2. No safety faults and alarms.
3. Run the frequency converter.
4. Ensure that the correct frequency converter is running.
5. Select Safe Stop 1 while the frequency converter is running.
6. Check the following
- The frequency converter ramps down to zero speed. Ensure
that it stops within the delay time specified.
- The motor is braked and stopped by the mechanical brake
(if available and configured).
- The SS1 will end with an STO warning or alarm, depending
on configuration.
7. Deselect Safe Stop 1.
8. Check the following
- Safety Func. Pending is displayed.
- Safe Stop 1 deselected and inactive.
9. Restart the frequency converter and check that the motor runs
normally.
10. Ensure that the Safe Stop 1 function is ready to operate.
11. Document and sign the commissioning test report.
Danfoss A/S © Rev. 2014-02-11 All rights reserved.
Test procedure Approved ☑
MG34W302