Siemens SINAMICS S120 Configuration Manual page 108

Motor components
5.4 Gear
Table 5- 19 Control sequence when selecting the gearbox stage
Gearbox stage selection
On ratio changeover from stage i
a Initial setting (f)
b Selection sequence
c Mechanical selection carried out up to endstop
On ratio changeover from stage i
d Initial setting (c)
e Selection sequence
f Mechanical selection carried out up to endstop
L Contact closed
0 Contact open
1) A limit switch (S1 or S2) sends a signal to the control after selection to switch out the selector unit.
108
to i
2 1
1)
to i
1 2
1)
Connector contact No.
2 3
+24 V DC 0 V
0 V +24 V DC
Configuration Manual, (APH4S), 08/2008, 6SN1197-0AD64-0BP1
4/5 (S1) 5/6 (S2)
0 L
0 0
L 0
L 0
0 0
0 L
1PH4 Induction Motors