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Safe Torque Off (STO)
3ADW000488R0101 DCS880 Service manual e a
Flow chart
Acceptance test, repetitive function test and STO revalidation test:
Maintenance
The STO function shall be maintained by periodic testing. To perform the maintenance, do the following:
− Repetitive function test.
− Acceptance test.
Fault/Trip
If the drive was repaired and the changed hardware is not in the revalidation check list below, no test is needed.
After a fault/trip the STO function shall be tested depending on the type of repair.
If the complete drive module has been exchanged, do the following:
− Repetitive function test.
− Acceptance test.
If the drive was repaired and the changed hardware is in the revalidation check list below, do the following:
− STO revalidation test.
− Repetitive function test.
− Acceptance test.
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