VACON 15
Notes:
3.7.4.2 SQS-SS1
The SQS function as a violation response is tested during the testing of a safety function that uses the SQS
function as its violation response.
The SQS-SS1 function from an external source: the test instructions are similar to that of SS1 test
instructions in 3.7.2 SS1.
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 SQS-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.
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.
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