NORD Drivesystems BU0260 - Manual (Page 25)

2 Assembly and installation
BU 0260 GB Subject to technical amendments 25
Control connection details
Terminal/
Designation Function
Data Description / wiring suggestion Parameter
1 24V BUS
(CAO)
2 External 24V bus
supply
(field bus) 24VDC -/+20%
≈ 50 mA
reverse polarity protected
Max. permissible current
load: 3A
Supply voltage for the CANopen
controller / field bus
-
3 CANopen+
(incoming)
4
(outgoing)
Bus +
CAN H
RS485 transfer
The use of twisted, shielded two-
conductor cable is highly
recommended
-
5 CANopen-
(incoming)
6
(outgoing)
Bus -
CAN L
-
7 GND BUS
8
Data ground bus
-
9 SHLD
Bus shield
-
10 PE
PE bus
-
Potential isolation
1124V
12
13 External 24V supply
(system bus) 24VDC -/+20%
≈ 50 mA
reverse polarity protected
Max. permissible current
load: 3A
Version to terminal 1 electrically
insulated.
CANopen bus supply (essential)
-
14 Sys+ System bus
data cable +
System bus
interface
-
15 GND
Reference potential
for digital signals External supply voltage for system
bus and digital inputs (DIN1 to
DIN4)
-
16 Sys-
System bus
data cable -
System bus
interface
-
17 GND
18 Reference potential
for digital signals External supply voltage for system
bus and digital inputs (DIN1 to
DIN4)
-
19 DIN1 Digital input 1
[I/O CANopen DIN1]
Low 0V ... 5V
High 15V ... 30V
R
i
= 8.1k 
Input capacitance 10nF
Scan rate 1 ms
Each digital input has a reaction
time of 1ms.
Inputs as per
EN 61131-2
Type 1
P174
20 DIN3 Digital input 3
[I/O CANopen DIN3]
P174
21 GND
22 Reference potential
for digital signals External supply voltage for system
bus and digital inputs (DIN1 to
DIN4)
-