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Pwrup_powerupcontrol (node number 171), 13 pwrup_powerupcontrol (node number 171), Drive plc – Lenze Global Drive PLC Developer Studio User Manual

Page 50: System blocks

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2.13

PWRUP_PowerUpControl (node number 171)

Drive PLC

System blocks

2−36

L

DrivePLC DE 6.0

2.13

PWRUP_PowerUpControl (node number 171)

This system block is only implemented as of software version V 8.1.

If the system block PWRUP_PowerUpControl is integrated into the control configuration, it can
avoid a U15 TRIP in the event of a short mains voltage dip.

PWRUP_bWaitFor24V_b

PWRUP_wMaxDelayTimeFor24V_b

PWRUP_PowerUpControl

0

1

PLC init

24 V

const.

Fig. 2−18

PWRUP_PowerUpControl

Fig. 2−19

Drive PLC behaviour in the event of a short dip of the 24−V−supply voltage

Tip!

This behaviour can only be activated if the control bit and the control word are contained in the
system POU "PLC_ColdStart".

If the system block is activated, a U15 error is indicated as warning in the history buffer