SIEMENS
5/21
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
CU230P-2 HVAC, CU230P-2 DP and CU230P-2 PN
Control Units
CU230P-2 Control Unit with open and closed terminal covers
Terminal
No.
Signal
Features
Digital inputs (DI) – Standard
69
DI COM
Reference potential for digital inputs
5 ... 8,
16.17
DI0 … DI5
Freely programmable
isolated, inputs in compliance with IEC 61131-2
Digital outputs (DO)
18
DO0, NC
Relay output 1
NC contact (5 A, 30 V DC or 2 A, 250 V AC)
1)
19
DO0, NO
Relay output 1
NO contact (5 A, 30 V DC or 2 A, 250 V AC)
20
DO0, COM
Relay output 1
Common contact (5 A, 30 V DC or 2 A,
250 V AC)
1)
21
DO1, NO
Relay output 2
NO contact (0.5 A, 30 V DC)
22
DO1, COM
Relay output 2
Common contact (0.5 A, 30 V DC)
23
DO2, NC
Relay output 3
NC contact (5 A, 30 V DC or 2 A, 250 V AC)
1)
24
DO2, NO
Relay output 3
NO contact (5 A, 30 V DC or 2 A, 250 V AC)
25
DO2, COM
Relay output 3
Common contact (5 A, 30 V DC or 2 A,
250 V AC)
1)
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-
50
AI2+
Non-isolated input, switchable between current
and temperature sensors,
type Pt1000/LG-Ni1000
Value range: 0/4 ... 20 mA,
Pt1000 -50 ... +250 °C;
LG-Ni1000 -50 ... +150 °C
51
GND
Reference potential of the AI2/
internal electronics ground
52
AI3+
Non-isolated input for temperature sensors,
type Pt1000/LG-Ni1000
Value range:
Pt1000: -50 ... +250 °C;
LG-Ni1000: -50 ... +150 °C
53
GND
Reference potential of the AI3/
internal electronics ground
Analog outputs (AO)
12
AO0+
Non-isolated output
Freely programmable
Value range: 0 ... 10 V; 0/4 ... 20 mA
13
GND
Reference potential of the AO0/
internal electronics ground
26
AO1+
Non-isolated output
Freely programmable
Value range: 0 ... 10 V; 0/4 ... 20 mA
27
GND
Reference potential of the AO1/
internal electronics ground
PTC/KTY interface
14
T1 MOTOR
Positive input for motor temperature sensor
Type: PTC, KTY, bimetal
15
T2 MOTOR
Negative input for motor temperature sensor
Power supply
9
+24 V OUT
Power supply output
24 V DC, max. 100 mA
28
GND
Reference potential of the power supply/
internal electronics ground
1
+10 V OUT
Power supply output
10 V DC ±0.5 V, max. 10 mA
2
GND
Reference potential of the power supply/
internal electronics ground
31
+24 V IN
Power supply input
20.4 ... 28.8 V DC, max. 1500 mA
32
GND IN
Reference potential of the power supply input
35
+10 V OUT
Power supply output
10 V DC ±0.5 V, max. 10 mA
36
GND
Reference potential of the power supply/
internal electronics ground
Terminal
No.
Signal
Features
1)
The following applies to systems complying with UL:
A maximum of 3 A, 30 V DC or 2 A, 250 V AC may be connected
via terminals 18 / 20 (DO0 NC) and 23 / 25 (DO2 NC).
© Siemens AG 2016