ABB ACQ580-01 Series Quick Installation And Start-Up Manual - Page 10

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ABB ACQ580-01 Series Quick Installation And Start-Up Manual
Control cable installation examples
This section shows examples for routing the control cables in frames R4 and R6...R9. Frames R1...R3 and R5 are similar to
frame R4.
R4
Embedded fieldbus connection
You can connect the drive to a serial communication link with a fieldbus adapter module or the embedded fieldbus
interface. The embedded fieldbus interface supports Modbus RTU.
To configure Modbus RTU communication with the embedded fieldbus:
1.
Connect the fieldbus cable and the required I/O signals. Use Belden 9842 or equivalent. Belden 9842 is a dual twisted,
shielded pair cable with a wave impedance of 120 Ohms.
2.
If the drive is at the end of the fieldbus, set the termination switch to ON.
3.
Power up the drive and set the required parameters. Refer to
A connection example is shown below.
4)
G
R
-
+
1)
Termination ON
Automation
controller
1) The devices at the ends of the fieldbus must have termination on. All other devices must have termination off.
2) One device must have bias on. It is recommended that this device is at the end of the fieldbus.
3) Attach the cable shields together at each drive, but do not connect them to the drive. Connect the shields only to the
grounding terminal in the automation controller.
4) Connect the signal ground (DGND) conductor to the signal ground reference terminal in the automation controller. If the
automation controller does not have a signal ground reference terminal, connect the signal ground to the cable shields
through a 100 ohm resistor, preferably near the automation controller.
3)
ON
ON
1
1
Termination and bias OFF
Drive
R6...R9
Fieldbus
communication.
ON
ON
1
1
Termination and bias OFF
Drive
ON
ON
1
1
Termination and bias
1)2)
ON
Drive
10