User Manual

Functions
5.1 Start modes
SIRIUS 3RW30 / 3RW40
Manual, 10/2010, 535199502000 DS 03
29






0RWRUWRUTXH0
1P
0
'LUHFWRQOLQHVWDUWLQJ
PD[LPXPWRUTXH
WKDWFDQEHJHQHUDWHG
0
1RP
3DUDPHWHUL]DEOH
VWDUWYROWDJH
0
6RIWVWDUW
6KRUWUDPSWLPH
0
6RIWVWDUW
/RQJHUUDPSWLPH
0
/RDGHJ)DQ
3DUDPHWHUL]DEOH
WRUTXHVWDUWLQJWLPH
0RWRUKDVUXQXSDQGLV
LQQRPLQDORSHUDWLRQQ
1RP

6SHHGQ
PLQ
$FFHOHUDWLRQ
WRUTXH
Figure 5-2 Principle of the voltage ramp for the torque characteristic




0RWRUFXUUHQW,
$
,
'LUHFW
RQOLQH
VWDUWLQJ
,
6RIWVWDUWHU
,
1RP
,
6RIWVWDUWHU
6KRUWUDPSWLPH
,
6RIWVWDUWHU
/RQJHUUDPSWLPH
3DUDPHWHUL]DEOH
UDPSWLPH
0RWRUVSHHG
Q
Q
1RP
Figure 5-3 Principle of the voltage ramp for the starting current characteristic
Typical applications of the voltage ramp
The voltage ramp principle is valid for all applications, e.g. pumps, compressors, conveyor
belts.