Siemens SINAMICS G120 CU240E-2 User Manual

Functions
7.2 Inverter control
Inverter with CU240B-2 and CU240E-2 Control Units
Operating Instructions, 07/2010, FW 4.3.2, A5E02299792B AA
157
7.2 Inverter control
If the inverter is controlled using digital inputs, two control command define when the motor
starts, stops and whether clockwise or counter-clockwise rotation is selected (two-wire
control).
Table 7- 1 Controlling the motor
Control commands
0RWRU
URWDWLQJ
&:
0RWRU
URWDWLQJ
&&:
0RWRUVWRSV 0RWRUVWRSV
Explanation
Two-wire control
0RWRURQ
5HYHUVHPRWRU
W
W
1. Control command: Switch motor on
or off (ON/OFF command)
2. Control command: Reverses the
motor direction of rotation
R 
R
0RWRU21
$FWLYH
$FWLYH
$FWLYH
0RWRU
VSHHG
5HYHUVH
PRWRU
2))
W
Figure 7-2 Motor control using digital inputs
Table 7- 2 Function table
Motor ON Reverse
motor
Function
0 0 OFF1: The motor decelerates to a standstill
0 1 OFF1: The motor decelerates to a standstill
1 0 The motor accelerates to the setpoint
1 1 The motor accelerates to the inverted setpoint

Siemens SINAMICS G120 CU240E-2 Specifications

General

Product type designation	SINAMICS G120 CU240E-2
Digital inputs	6
Analog inputs	2
Protection class	IP20
Input voltage range	3AC 380V to 480V ±10%
Output voltage range	0V to input voltage
Rated current	Refer to the specific CU240E-2 model (e.g., CU240E-2 DP, CU240E-2 PN)
Output current range	Refer to the specific CU240E-2 model (e.g., CU240E-2 DP, CU240E-2 PN)
Power rating	Refer to the specific CU240E-2 model (e.g., CU240E-2 DP, CU240E-2 PN)
Control type	V/f, vector control
Communication interfaces	PROFIBUS
Operating temperature range	-10 ... 50 °C (depending on the specific model and derating)
Relative humidity	5% to 95%, non-condensing
Digital outputs	2 relay outputs
Altitude	Up to 1000m without derating