Automatic Restart (Vector, Servo, Infeed) - Siemens Sinamics S120 Function Manual

Overview of important parameters (see SINAMICS S120/S150 List Manual)
● r0069 Phase current, actual value
● r0089 Actual phase voltage
● p1820 Direction of rotation reversal of the output phases (vector)
● p1821 Rotational direction
● p1959[0...n] Rotating measurement configuration
● p2507 LR absolute encoder adjustment status
6.9

Automatic restart (vector, servo, infeed)

Description
The automatic restart function is used to automatically restart the drive/drive line-up - e.g.
when the power is restored after a power failure. In this case, all of the faults present are
automatically acknowledged and the drive is powered-up again. This function is not only
restricted to line supply faults; it can also be used to automatically acknowledge faults and to
restart the motor after any fault trips. In order to allow the drive to be powered-up while the
motor shaft is still rotating, the "flying restart" function should be activated using p1200.
Before the automatic restart starts, it should be ensured that the supply voltage is available
and is present at the infeed.
On this subject, also note the information in Chapter Switching on a drive object X_INF using
a VECTOR drive object (Page 683)
CAUTION
Automatic restart functions in the vector and servo modes - and for infeeds with closed-loop
infeed control. After the line supply voltage is connected, Smart Line Modules 5kW/10kW
automatically power themselves up.
If p1210 is set to the value > 1, the Line Modules / motors can start automatically once the
line supply has been re-established. This is especially critical, if, after longer line supply
failures, motors come to a standstill (zero speed) and it is incorrectly assumed that they
have been powered-down. For this reason, entering the area around the drive when it is in
this condition can cause death, serious injury, or considerable material damage.
Drive functions
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
WARNING
6.9 Automatic restart (vector, servo, infeed)
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Basic functions
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