Siemens CU240S PN-F - Page 86

Functions
5.2 Inverter control
CU240S and CU240E Control Units, FW 3.2
86 Operating Instructions, 03/2009, A5E02440075B AA
Table 5- 2 Comparison of the methods for three-wire motor control
Control commands
0RWRU
URWDWLQJ
&:
0RWRU
URWDWLQJ
&&:
0RWRUVWRSV 0RWRUVWRSV
Explanation
Three-wire control, method 1 (P0727 = 2)
0RWRURQ
&:
(QDEOHRU
VWRS
0RWRURQ
&&:
W
W
W
1. Control command: Enable the motor so
that it can be switched on or switched off
2. Control command: Switch on the motor
CW rotation
3. Control command: Switch on motor
CCW rotation
Three-wire control, method 2 (P0727 = 3)
0RWRURQ
(QDEOH
5HYHUVH
PRWRU
W
W
W
1. Control command: Enable the motor so
that it can be switched on or switched off
2. Control command: Switch the motor on
or off
3. Control command: Enter CW or CCW
rotation of the motor
A detailed description of all of the methods to control a motor can be found in the following
sections.