NORD Drivesystems BU0280 - Manual (Page 25)

2 Assembly and installation
BU 0280 GB Subject to technical amendments 25
Terminal/
Designation Function
[factory setting] Data Description / wiring suggestion Parameter
25 DIN2 Digital input 2
[I/O DeviceNet DIN2] Low 0V ... 5V
High 15V ... 30V
R
i
= 8.1k 
Input capacitance 10nF
Scan rate 1 ms
Inputs as per EN 61131-2
Type 1
Each digital input has a reaction
time of 1ms.
P174
26 DIN4 Digital input 4
[I/O DeviceNet DIN4]
P174
27 GND
28 Reference potential
for digital signals External supply voltage for system
bus and digital inputs (DIN1 to
DIN4)
-
29 24V
30 External 24V supply
As for terminal 11 -
Potential isolation
31 24V o External 24V supply
for the DOs 24VDC -/+20%
Up to 1A, according to
load
reverse polarity protected
External supply voltage for digital
outputs (DO1 and DO2)
If necessary, bridge to 24V terminal
-
32 GND o Reference potential
for digital signals External supply voltage for digital
outputs (DO1 and DO2)
If necessary, bridge to GND
terminal
-
33 DO1 Digital output 1
[I/O DeviceNet DO1] Low = 0V
High: 24V
Rated current: 500mA
each
The digital outputs should be used
with a separate 24V supply
P150
P175
34 DO2 Digital output 2
[I/O DeviceNet DO2]
P150
P175
35 GND o
36
Reference potential
for digital signals External supply voltage for digital
outputs (DO1 and DO2)
If necessary, bridge to GND
terminal
-
Details of M12 connections of the SK TU4-DEV-M12
The special wiring of the M12 round plug connector
enables the connection of both single and double
sensors, which are equipped with normal M12 system
connectors in the standard sensor/actuator
configuration.
With the use of M12 round plug connectors, the terminal
bar connectors for the digital inputs (Terminals 19, 20,
25, 26) must not be used.