Common Communication Faults; Canopen Communication Protocol; Electrical Connection - INVT Goodrive390L Series User Manual

Goodrive390L Series Lift-Dedicated VFD
"Communication channel of running commands" (P00.02) to the Modbus channel.
Click Send. If the line configuration and settings are correct, a response transmitted

from the VFD is received.

7.1.3 Common communication faults

Common communication faults include the following:
• No response is returned.
• The VFD returns an exception response.
Possible causes of no response include the following:
1. The serial port is set incorrectly. For example, the adapter uses the serial port COM1,
but COM2 is selected for the communication.
2. The settings of the baud rates, data bits, end bits, and check bits are inconsistent
with those set on the VFD.
3. The positive pole (+) and negative pole (-) of the RS485 bus are connected reversely.
4. The resistor connected to 485 terminals on the terminal block of the VFD is set
incorrectly.

7.2 CANopen communication protocol

7.2.1 Electrical connection

1. Supported functions
 Supports the CAN2.0A protocol
 Supports the CANopen DS301
2. Supported CANopen services
 PDO: Supports four pairs of PDO services (PDO1 TX to PDO4 TX, and PDO1 RX to
PDO4 RX), where the PDO1 pair is used to read and write parameters of a VFD, and
the PDO2, PDO3 and PDO4 pairs are used to control and obtain the actual parameter
values of the VFD in real time.
 SDO: SDO information adopts the "client/server" mode and is used to configure slave
nodes and provide access to the object dictionary of each node.
 Supports the emergency service.
202403 (V1.0）
03 06
VFD
Write
address
command
20 00 00 01
Forward
Parameter
running
address
Communication protocol
42 28
CRC
78