Invertek Drives Optidrive E3 ODE-3 Series User Manual

8 | Fieldbus Guide | Version 1.02 www.invertekdrives.com
4
Modbus RTU
4. Modbus RTU
4.1. Overview
Modbus RTU communication is supported using Function Codes 03 Read Holding Registers and 06 Write Single Holding Register.
All internal registers are Holding registers. There are no other register types present within the drive.
Registers 1 to 4 only support Function Code 16 Write multiple Holding Registers.
Modbus RTU communication is enabled by default for Read access.
To control the drive through Modbus RTU, parameter P-12 should be set to 3 or 4. Refer to the programming guide for further
information on the parameter settings.
When an external Modbus RTU device is used to control the drive, Digital Input 1 acts to provide a local enable / disable signal.
The drive will not operate unless digital input 1 is ON. Additional functions may be assigned to other input terminals. Refer to the
Installation guide for details of the digital Input function assignments that are possible.
4.2. Hardware Connection
4.2.1. Optidrive E3 IP20
Optidrive E3 IP20 models have a built in RJ45 connector which provides the interface for Modbus RTU connection.
1 CAN-
2 CAN+
3 0 Volts
4
Optibus / Remote Keypad / PC Connection
5 Optibus / Remote Keypad / PC Connection +
6 +24 Volt
7 -RS485 (Modbus RTU)
8 +RS485 (Modbus RTU)
Warning:
This is not an Ethernet connection. Do not connect
directly to an Ethernet port.
4.2.2. Optidrive E3 IP66
Optidrive E3 IP66 models have two RJ45 connectors fitted under the terminal cover as shown below. The connectors are parallel
allowing simple connection between multiple drives.
L1
L3 EMCL2/N
UVW
1 2 3 4 5 6 7 8 9 10 11
I0I0I I0I0I
1 CAN-
2 CAN+
3 0 Volts
4
Optibus / Remote Keypad / PC Connection
5 Optibus / Remote Keypad / PC Connection +
6 +24 Volt
7 -RS485 (Modbus RTU)
8 +RS485 (Modbus RTU)
Warning:
This is not an Ethernet connection. Do not connect
directly to an Ethernet port.
4.2. Hardware Connection
4.2.1. Optidrive E3 IP20
Optidrive E3 IP20 models have a built in RJ45 connector which provides the interface for Modbus RTU connection.
1
CAN-
2
CAN+
3
0 Volts
4
Optibus / Remote Keypad / PC Connection
5
Optibus / Remote Keypad / PC Connection +
6
+24 Volt
7
-RS485 (Modbus RTU)
8
+RS485 (Modbus RTU)
Warning:
This is not an Ethernet connection. Do not connect
directly to an Ethernet port.
4.2.2. Optidrive E3 IP66
Optidrive E3 IP66 models have two RJ45 connectors fitted under the terminal cover as shown below. The connectors are parallel
allowing simple connection between multiple drives.
1
CAN-

Invertek Drives Optidrive E3 ODE-3 Series Specifications

General

Brand	Invertek Drives
Model	Optidrive E3 ODE-3 Series
Category	Inverter
Language	English