NORD Drivesystems BU0220 - Manual (Page 26)

PROFIBUS DP – Supplementary manualfor NORD Frequency Inverter SK 2xxE
26 Subject to technical amendments BU 0220 GB-0912
Terminal/
Name
Function Data Description / wiring suggestion Parameter
21 0V
22
GND
Reference potential
for digital signals
As for terminal 15
Connection of supply voltage for
module and 24V source for supply
of the digital inputs (DIN1 to DIN4)
-
23 24V
24
24V supply
(Module, field and system
bus level)
As for terminal 1
However, max.
permissible current load:
3A
-
25 DIN2 Digital input 2
(I/O Profibus 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 Profibus DIN4) P174
27 0V
28
GND
Reference potential
for digital signals
As for terminal 15
Connection of supply voltage for
module and 24V source for supply
of the digital inputs (DIN1 to DIN4)
-
29 24V
30
24V supply
(Module, field and system
bus level)
As for terminal 1
However, max.
permissible current load:
3A
-
Potential isolation
31 24V2 24V supply
of digital outputs 24VDC -/+20%
Up to 1A, according to
load
reverse polarity protected
Supply voltage connection for
digital outputs (DO1 and DO2)
If necessary, bridge to 24V terminal
-
32 0V2 GND 2
Reference potential
for digital outputs Ground for digital outputs (DO1
and DO2)
If necessary, bridge to 0V terminal
-
33 DO1 Digital output 1
(I/O Profibus DO1)
Low = 0V
High: 24V
Rated current: 500mA
each
The digital outputs should be used
with a separate 24V supply
P175
34 DO2 Digital output 2
(I/O Profibus DO2) P175
35 0V2
36
GND 2
Reference potential
for digital outputs
Ground for digital outputs (DO1
and DO2)
If necessary, bridge to 0V terminal
-