Danfoss Vacon OPTEA Operating Manual page 201

2 Give a RUN request to the AC drive.
3 Activate the SS1 function from the desired source.
4 The drive should ramp down towards standstill. The
behaviour of the ramp down is dependent on the way the
ramp down is realised (e.g. drive application, external speed
reference).
Depending on the selected SS1 mode:
Time mode:
The STO function is activated after a delay. Make sure that
the delay is correct for the process.
Time + Zero speed mode:
The STO function is activated after the speed goes below a
defined speed.
Time + Zero speed + Ramp mode:
The STO function is activated after the speed goes below a
defined speed. The ramp is monitored by the option board.
NOTE! If the Time + Zero speed + Ramp mode is used and
the controlled ramp down not following the intended ramp
is a critical enough deviation, re-execute this test to
determine that the monitored ramps are sufficient for the
process.
5 Make sure that the drive is in NOT READY state.
Applicable faults are shown on the control panel of the AC
drive:
Warning: F30 SafeTorqueOff, subcode: 1.
Warning: F46 SafetyRequest, subcode: SS1 (2).
Warning: F47 SafetyReached, subcode: SS1 (2).
NOTE! The faults that are shown and their type (Fault or
Warning) depend on the settings of the AC drive.
6 Deactivate the SS1 function.
If the manual acknowledgement mode is used: do a check
that the STO function is not deactivated automatically.
Activate the acknowledgement from the desired source.
If there are faults and if they were expected, reset them.
NOTE! When a safety function is deactivated, and there is a
valid RUN request in the AC drive, the AC drive can start
running unexpectedly.
7 The drive is in READY state.
VACON 11