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Manual – Controllers DHE/DHF/DHR21B (standard) and DHE/DHF/DHR41B (advanced)
3
Controller DH.21B/41B
Introduction
3.3.5 System buses CAN 1, CAN 2 and Ethernet 1
You can use the DH.21B/41B option to control a machine module by connecting several
inverters via the system bus. The DH.21B/41B option controls all drives within the
machine module and in this way takes load off the higher-level controller (e.g. machine/
system PLC). You can connect a total of maximum 16 units to the DH.21B option, and
a total of maximum 64 units to the DH.41B option via system buses CAN 1, CAN 2,
and Ethernet 1:
•MOVITRAC
®
B frequency inverter
•MOVIDRIVE
®
MDX60B/61B drive inverter
•MOVIAXIS
®
servo inverter
• Gearmotor with integrated frequency inverter MOVIMOT
®
(Fieldbus interface
DeviceNet MFD... required)
• I/O coupler (OCC11B/OCE11B)
3.3.6 RS485 interfaces COM1 and COM2
Connect one of the following devices each to the RS485 interfaces COM1 or COM2:
• DOP11B operator terminal
• MOVIMOT
®
gearmotor with integrated frequency inverter
3.3.7 Ethernet 2
You can implement the following functions and connections using the Ethernet 2
communication interface:
• Connection of a DOP11B operator terminal
• PC visualization (e.g. OPC interface)
• Connection to master level
3.3.8 Binary inputs and outputs
Binary inputs and outputs enable you to switch actuators (e.g. valves) and evaluate
binary input signals (e.g. sensors).
3.3.9 Diagnostic LEDs
The LEDs of the DH.21B/41B options indicate the following states:
• Voltage supply of the binary inputs and outputs
• General state of the DH.21B/41B options
• State of the control program
• State of the fieldbus interface (DHF/DHR)
• State of the Ethernet interface
• State of both CAN interfaces
You can connect operator terminals to perform diagnostics. It is recommended to
connect an operator terminal to the communication interface Ethernet 2.
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