3.3 Internal Customer Unit
BU 0200 GB
Subject to technical alterations
63
3.3.2
Profibus Module, SK CU4-PBR
Bus module for the control, parameterisation and diagnosis of up to four frequency inverters via ProfiBus.
•
Baud rate: Max. 12 MBaud, automatic detection
•
Protocol: DPV 0 and DPV 1
•
2x digital inputs
•
Address via DIP switches
•
Termination resistor via DIP switches
•
Automatic PPO detection
•
Status LED: BG status, BG fault, DIN1, DIN2,
Bus status, Bus fault
•
Details in Bus Manual BU 0250 (www.nord.com)
Module
SK CU4-PBR
Function
Pin
Labelling
1
44
+24V, external 24V supply
External supply voltage of module
24V ±20%,
≤
150mA
2
40
GND, reference potential
3
C1
BDIN1 / digital input 1
Digital inputs, SPS-compatible as per EN61131-2,
low: 0-5V, high: 11-30V
…, used for further processing via the bus.
4
C2
BDIN2 / digital input 2
5
77
SYS+, system bus
System bus connection to FI
6
78
SYS-, system bus
7
40
GND, reference potential
Parallel to Pin 1/2
8
44
+24V, external 24V supply
Electrical isolation
9
82
PBR B, Profibus, red
Profibus data cable for external communication,
incoming
10
81
PBR A, Profibus, green
11
46
GNDB, Bus Ground
Bus reference potential
12
83
RTS, “Ready to send”
RTS
13
47
+5VB, Profibus 5V
Bus 5V
14
82
PBR B, Profibus, red
Profibus data cable for external communication,
outgoing
15
81
PBR A, Profibus, green
16
46
GNDB, Bus Ground
Bus reference potential
