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Application Notes – Motor Drives
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Drive Addresses Assigned By Panel-Tec
Drive Number 255 is used to address all motor drives present on a 485 or 422 communications link. This
drive address can only be used when writing a parameter or value to the motor drives. This allows for
motor drives to be multi-dropped together and a command such as a new velocity to be sent to all drives
at the exact same time.
Note: When using Drive Number 255, the same value is sent to all drives as a single Global Broadcast
command. Therefore, the number of drives (if using the Command Block or Transfer Table) or
the number of registers (if using a Modbus Master) must be set to 1.
Drive Specific Completion Codes (Bits 6 thru 4 of the Result Word)
2 = The DN-3000 obtained an invalid response from drive
Configuring A Baldor Drive For Serial Communications
Before a Baldor Motor Drive can be used for serial communications with the DN-3000, the following
steps must be performed:
1) The Serial Communication Expansion Board must be installed and configured correctly.
2) The DN-3000 must be configured with the same communication options selected on the
Dip Switches of the Serial Communication Expansion Board.
3) Pins 8, 9, 10, and 17 of Terminal Strip J1 on the Baldor drive must all be jumpered together.
4) Using the Baldor keypad, go to the INPUT block title, select OPERATING MODE and
change the mode to SERIAL. Press the DISP key and the text SERIAL should appear on
the display.