Efb Basic Configuration - ABB ACH550 series User Manual

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• To reduce noise on the network, terminate the EIA 485 network using 120 O
resistors at both ends of the network. Use the DIP switch to connect or disconnect
the termination resistors. See following diagram and table.
Preferred Wiring Diagram (See ACH550 E-Clipse Bypass EFB User's Manual (3AUA0000031267 REVA) for Alternate
Wiring:
• Do not connect the shield at the bypass. Tie the shields together at the bypass.
Only load the shield connection at the EIA 485 master.
• Use seperate, metal conduit and route wires seperately to keep these three
classes of wiring apart:
DIP Switch Settings SW1 (1-2)
The DIP switch is used to configure the serial communications termination resistors. To
reduce noise on the serial communications network, terminate the EIA-485 network using
120 ohm resistors at both ends of the network. If the E-Clipse Bypass is the last node on
the network, use the DIP switches to connect or disconnect the on-board termination
resistors. Both SW1 switch positions (1,2) must be set in the ON or OFF position to
correctly configure the termination resistors.

EFB Basic Configuration

The ACH550 drive has been programmed at the factory! Do not use drive control panel to program
communications unless specified. Follow steps 1 thru 5 as needed based on your network control
requirements. See E-Clipse Bypass Configuration manual (3AUA0000016461 REVB): Parameter
Embedded Fieldbus and Fieldbus Adapters
•Input power wiring
•Motor wiring
•Control/communications wiring
E-Clipse Bypass Configurations for ACH550 Drives