NORD Drivesystems TI 275271006 - Manual (Page 2)

IO-Extension – SK CU4-IOE
2 TI 275271006 - 4912
Installation
Installation location Inside the connection unit of a frequency inverter (SK 2xxE)
Fastening With screw fasteners
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Connections
Terminals Screw terminals 1 terminal bar, with 16 connections, (5 mm spacing)
Cable cross section 0,14 … 2,5 mm AWG 14-26
PE connection Via inverter Via screws if installed in inverter
Schematic circuit diagram of electrical connection
(Terminal designations in example: Frequency inverter SK 2xxE)
SK CU4-IOE SK 2xxE
VI 24V
GND/0V
SYS +
SYS -
24V
GND/0V
SYS +
SYS -
Level Contact Designation Description
S
yste
m
b
u
s le
ve
l,
d
igita
l sig
n
a
ls
44 VI 24V Supply voltage (+24 V - in)***
40 GND/0V Reference potential (0 V / GND)***
C1 DIN1 Digital input 1
C2 DIN2 Digital input 2
77 SYS+ System bus data cable +**
78 SYS- System bus data cable -**
40 GND/0V Reference potential (0 V / GND)
A
n
a
lo
g
sig
n
a
ls
11 VO 10V 10 V Reference voltage
14 AIN1+ Analog input 1, positive
13 AIN1- Analog input 1, negative
12 AGND/0V Analog Ground (internally connected to terminal 40)*
17 AOUT Analog Out
11 VO 10V 10 V Reference voltage
16 AIN2+ Analog input 2, positive
15 AIN2- Analog input 2, negative
12 AGND/0V Analog Ground (internally connected to terminal 40)*
* AGND/0V is internally connected to the reference voltage of the module GND/0V via a special
component. In order to prevent damage to the module or faults in the analog signals, the two
contacts must not be bridged
** Use system bus cable kit (included in scope of delivery), black = SYS -, grey = SYS +
*** Use 24VDC cable kit (included in scope of delivery), brown = 24V, blue = GND/0V
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Connection examples
The following connection examples are generally applicable for NORD IO modules. The number or
type of the available IOs and their configuration on the terminal rail varies according to the module.
The actual availability or the designation of the individual contacts should be obtained by reference to
the description of the connections. The technical data (e.g. load capacity) must be taken into account.