NORD Drivesystems BU0260 - Manual (Page 24)

Supplementary Manual CANopen for NORDAC SK 20E
24 Subject to technical amendments BU 0260 GB
2.2.2.2 Control connections of the SK CU4-CAO(-...)
The double spring-loaded terminal bar of the technology unit is colour coded, and therefore indicates the
three different potential levels.
A separate power source should be used particularly for the supply of the DOs. However, by bridging the
24V o and GND o to one of the terminals of the system bus level (24V and GND) it is possible to implement
the supply of the DOs. However, in this case it should be noted that there is an increased risk of introducing
interference into the bus cables.
Connection of up to 4 sensors and 2 actuators is made via the terminal bar. Alternatively, the SK
TU4-CAO-M12 enables the connection of these I/Os via the M12 round plug connector (5 pin socket, A-coded)
mounted on the front.
Double use of the inputs via the terminal bar and the M12 round plug connector must be avoided.
field bus level
CANopen
System bus level and digital inputs Digital outputs
24V-B
CAO
CAO+
IN
CAO-
IN
GND B
CAO
SHLD 24V 24V
(as 11)
GND GND DIN 1 GND 24V
(as 11)
DIN 2 GND 24V
(as 11)
24V O
DO
DO 1 GND O
DO
1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36
24V-B
CAO
CAO+
OUT
CAO-
OUT
GND B
CAO
PE 24V
(as 11)
Sys + Sys - GND DIN 3 GND 24V
(as 11)
DIN 4 GND 24V
(as 11)
GND O
DO
DO 2 GND O
DO
Connection example: SK TU4-CAO to SK 200E
SK205E… - connection unit (SK TI4...)
SK TU4-CAO… - connection unit (SK TI4-TU-BUS)
Voltage
source
24V DC
CANopen
subscriber
X-1
Voltage
source
24V DC
CANopen
subscriber
X+1
NOTE
In principle, looping of the 24V supply voltage (terminals 1/2) or also e.g.: (terminals 11/15)
is possible, however a maximum permissible current load of 3A for the
SK TU4-CAO(-…)must not be exceeded.
Illustration of the terminal bar of the bus connection unit
SK T14-TU-BUS with allocation of functions
Potential level: field bus Potential level: system bus Potential level: DOs