Technical data

CU230P-2 Control Units, Getting Started
10 A5E02484096, 05/2009
3.6 Connecting CU230P-2 CAN to CAN bus
Description
This section describes how the inverter is physically connected to the CAN bus.
The communication settings are described in the Control Unit operating
instructions in the section "Communication settings for CANopen".
The Control Unit CU230P-2 CAN has a 9-pin sub D connector underneath the
Control Unit for integrating the inverter into the CANopen fieldbus system. This
connector has short-circuit-proof, isolated pins. You will find the pin assignments
in the following table.
X
XY
Z
68%'FRQQHFWRU
%XV
7HUPLQDWLQJVZLWFK
Table 3 Pin assignments for the 9-pin sub D connector (socket)
Contact Designation Description
1 Reserved ---
2 CAN_L CAN signal (dominant low)
3 CAN_GND CAN ground
4 Reserved ---
5 (CAN _SHLD) Optional shield
6 (GND) Optional CAN ground
7 CAN_H CAN signal (dominant high)
8 Reserved ---




9 ISO 5 V
CANopen cable connector
For setting up a CANopen network, you can use cable for serial 9-pin connections with sub D connectors.
General specifications for CANopen and requirements for fault-free communication
NOTICE
When the bus is operating, the first and last bus station must be continuously connected to the supply.
Note
Communication with the controller, even when the line voltage is switched off
You will have to supply the Control Unit with 24 V DC on terminals 31 and 32 if you require communication to take place with
the controller when the line voltage is switched off.
Setting the CANopen address
In order to integrate an inverter into a CANopen network, you need to set the address. The following possibilities exist:
● Using the address switch on the Control Unit
● Via parameter p8620