Safety functions
Test procedure
Approved
☑
Safe Stop 1 Delay
1. Safe Stop 1 Delay 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 Delay 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 Delay.
8. Check the following
-
Safety Func. Pending is displayed.
-
Safe Stop 1 Delay 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.
Table 7.5 Commissioning Test Report, Safe Stop 1 Delay
Service and Repair
Operating Instructions
MG34W302
Danfoss A/S © Rev. 2014-02-11 All rights reserved.
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