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SINAMICS G150 - operating instructions EN

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Setpoint Channel and Closed-Loop Control 06/05<br />

Voltage Boost at Acceleration (p1311)<br />

The voltage boost is only active during acceleration/braking.<br />

V<br />

V/f linear<br />

V max<br />

(r0071)<br />

V n<br />

(p0304)<br />

Output voltage<br />

V/f normal<br />

V accelerate<br />

0 f n<br />

(p0310)<br />

V acceleration<br />

= p0305 (rated motor current) x<br />

r0395 (current stator resistance) x<br />

p1311 (voltage at acceleration)<br />

f max<br />

(p1082/no. of<br />

pole pairs)<br />

f<br />

Fig. 7-7 Voltage boost at acceleration (example: p1300 = 0 and p1310 = 0)<br />

Function Diagram<br />

FD 1665, 6300<br />

Parameters<br />

• p0305 Rated motor current<br />

• r0395 Stator resistance, actual<br />

• p1310 Voltage boost permanent<br />

• p1311 Voltage boost at acceleration<br />

• r1315 Voltage boost total<br />

SINAMICS G150<br />

7-14 Operating Instructions

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