Efficient Networks S120 manual Automatic restart vector, servo, infeed

Basic functions

6.7 Automatic restart (vector, servo, infeed)

Overview of key parameters (see SINAMICS S List Manual)

●r0069 Phase current, actual value

●r0089 Actual phase voltage

●p1820 Direction of rotation reversal of the output phases (vector)

●p1821 Reversal of direction

●p2507 LR absolute encoder adjustment status

6.7Automatic restart (vector, servo, infeed)

Description

The automatic restart function is used to automatically restart the drive/drive group 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.

CAUTION

Automatic restart functions in the vector, servo mode and for infeeds with closed-loop infeed control. After the line supply voltage is connected, Smart Line Modules 5kW/10kW automatically power themselves up.

WARNING

If p1210 is set to the value > 1, the Line Modules / motors can start automatically once the line supply has been reestablished. 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.

188	Drive Functions
	Function Manual, (FH1), 07/2007 Edition, 6SL3097-2AB00-0BP4