SIEMENS
5/24
Siemens D 31 N · March 2016
SINAMICS G120 standard inverters
0.37 kW to 250 kW (0.5 hp to 400 hp)
Control Units
5
■
Design
CU250S-2, CU250S-2 DP, CU250S-2 PN, CU250S-2 CAN
Control Units
CU250S-2 Control Unit with open and closed terminal covers
Terminal
No.
Signal
Features
Digital inputs (DI)
5
DI0
Digital inputs, floating, 5.5 mA/24 V
6
DI1+
Digital inputs, floating, 5.5 mA/24 V
64
DI1-
Digital inputs, floating, 5.5 mA/24 V
7
DI2
Digital inputs, floating, 5.5 mA/24 V
8
DI3+
Digital inputs, floating, 5.5 mA/24 V
65
DI3-
Digital inputs, floating, 5.5 mA/24 V
16
DI4
Digital inputs, floating, 5.5 mA/24 V
17
DI5+
Digital inputs, floating, 5.5 mA/24 V
66
DI5-
Digital inputs, floating, 5.5 mA/24 V
67
DI6
Digital inputs, floating, 5.5 mA/24 V
69
DI COM1
Reference potential for digital inputs
DI0, DI2, DI4, DI6
Digital inputs (DI)
41 ... 44
DI16 ... DI19
Freely programmable (isolated) 5.5 mA/24 V
40
DI COM3
Reference potential for digital inputs
DI16 ... DI19
Digital inputs (DI) – Fail-safe
(formed from two standard inputs using the appropriate parameter setting)
5, 6
F-DI0
Fail-safe digital inputs, 2 channels (redundant),
freely programmable (isolated) 5.5 mA/24 V
7, 8
F-DI1
Fail-safe digital inputs, 2 channels (redundant),
freely programmable (isolated) 5.5 mA/24 V
16, 17
F-DI2
Fail-safe digital inputs, 2 channels (redundant),
freely programmable (isolated) 5.5 mA/24 V
69
DI COM1
Reference potential for digital inputs
F-DI0, F-DI1, F-DI2
Switchable digital inputs or outputs (digital inputs DI24 to DI27 can also
be used as a pulse input with a maximum frequency of 32 kHz)
51
DI24/DO24
Freely programmable (non-floating),
DI: 5.5 mA/24 V, DO: 100 mA/24 V
53
DI25/DO25
Freely programmable (non-floating),
DI: 5.5 mA/24 V, DO: 100 mA/24 V
53
DI26/DO26
Freely programmable (non-floating),
DI: 5.5 mA/24 V, DO: 100 mA/24 V
54
DI27/DO27
Freely programmable (non-floating),
DI: 5.5 mA/24 V, DO: 100 mA/24 V
50
GND
Reference potential
Digital outputs (DO) – Fail-safe
18
DO0, NC
Relay output DO0
NC contact (0.5 A, 30 V DC)
19
DO0, NO
Relay output DO0
NO contact (0.5 A, 30 V DC)
20
DO0, COM
Relay output DO0
Common contact (0.5 A, 30 V DC)
21
DO1 NO
Transistor output DO1
Positive (0.5 A, 30 V DC)
22
DO1 COM
Transistor output DO1
Negative (0.5 A, 30 V DC)
23
DO2, NC
Relay output DO2
NC contact (0.5 A, 30 V DC)
24
DO2, NO
Relay output DO2
NO contact (0.5 A, 30 V DC)
25
DO2, COM
Relay output DO2
Common contact (0.5 A, 30 V DC)
Analog inputs (AI)
3
AI0+
Differential input, switchable between current,
voltage
Value range: 0 ... 10 V, -10 ... +10 V,
0/2 ... 10 V, 0/4 ... 20 mA
4
AI0-
10
AI1+
Differential input, switchable between current,
voltage
Value range: 0 ... 10 V, -10 ... +10 V,
0/2 ... 10 V, 0/4 ... 20 mA
11
AI1-
13
GND
Reference potential of AI
Analog outputs (AO)
12
AO0+
Non-isolated output
Freely programmable
Value range: 0 ... 10 V; 0/4 ... 20 mA
26
AO1+
Non-isolated output
Freely programmable
Value range: 0 ... 10 V; 0/4 ... 20 mA
27
GND
Reference potential of AO
Terminal
No.
Signal
Features
© Siemens AG 2016