Schneider Electric ATV61 Communication via CANopen network, PLC configuration and application

3. Implementation of the communication option cards

3. 3. 3. Configuring polarity on the drive RS 485 bus

The card is equipped with 2 line polarity configuration switches but the orientation is not the same for the Altivar 38 and the Altivar 61. Configure the polarity according to the following method.

ATV38 ATV 61

Unitelway protocol

Modbus/Jbus protocol

Configuring the drive control mode

Check and configure as necessary the control mode applied to the drive in the [1.6 - COMMAND] (CtL-)menu on the graphic display terminal, the integrated display terminal or the PowerSuite software workshop.

[Profile] (CHCF) = [8 serie] (SE8)

3. 3. 4. PLC configuration and application

The fact of opening the Altivar 61’s "ATV38 compatibility" memory zone (SE8 mode) performed by the PowerSuite software workshop means that no changes need to be made in the PLC application.

However, in response to a function 43 identification request (16#2B) the drive will identify itself as an Altivar 61, not an Altivar 38.

3. 4. Communication via CANopen network

3. 4. 1. Reminder of possible connection methods

ATV38			ATV 61
1	= CAN_GND	2		= CAN_L
2	= CAN_L	3		= CAN_GND
4	= CAN_H	7		= CAN_H

The ATV61 CANopen adapter must be used when connecting the Altivar 61 to a CANopen network.

ATV61

CANopen E.g., ATV61HU22M3

adapter

3. 4. 2. Matching the line termination resistor

The VW3 CAN KCDF 180T connector for connecting to the CANopen bus incorporates a line termination resistor. You should ensure this has been activated when the drive is at the end of the trunk cable.

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