
3 Installation
3.5 Electrical installation
DB1 variable frequency drive
11/20 MN040031EN
Eaton.com
72
3.5.2.4 RJ45 interface
The RJ45 interface located at the front allows a direct connection to commu-
nication assemblies and field bus options.
The internal RS-485 connection transmits Modbus RTU and CANopen.
Figure 42: RJ45 interface
Table 14: Configuration of the RJ45 interface
Pin
Meaning
1
CANopen -
2
C
3
0 V
4
OP-Bus -
5
OP-Bus +
6
+24 V
7
Modbus RTU (A), RS485-
8
Modbus RTU (B), RS485+
→
The way the RJ45 interface works is described in the following
manuals:
•
MN040018: “Modbus RTU – Communication manual for DA1,
DC1, DE1 variable frequency drives”
•
MN040019: “CANopen – communication manual for DA1,
DC1, DE11 variable frequency drives”
→
DB1 variable frequency drives have no internal bus termination
resistor.
UseEASY-NT-R as needed.
PIN 8
(PIN 2)
PIN 7
(PIN 1)
RS485
RJ45
X1
1
8
L1 L2
(L) (N)
L3
U V W