ABB PFBK 164 3BSE000469R1 Pulse input card

Use 22-gauge wire for the cabling. Obtain cable with each I/O pair (refer to the diagram) twisted at about 3 to 4 turns per inch (1 to 1.5 turns per centimeter). As an option, the cable may be shielded to reduce noise pickup.Build the cable to connect to your computer or terminal by referring to the documentation for the device. Standard RS-232 pinouts for IBM compatible personal computers are shown as follows. Note: Pinouts vary among computer manufacturers. Check the hardware reference manual for your machine before wiring the serial port

This section describes how to connect your 6445 to devices supporting RS-422/RS-485 communications.

RS-485/RS-422 Connections

 Up to 31 6445s can be connected in parallel to a multidrop master. The 6445s must each have a unique address, set using DIP switch S2 as described in Section 3.2. RS-485/RS-422 connections to J7 are shown below. A multidrop interconnection diagram, showing multiple axes connected to a single host is also included.It is often convenient to use an RS-232 to RS-485/RS-422 converter so that an RS-232 port, available on all PCs, can be used to connect multiple axes. The figure below shows a typical installation, using theB&B Model 422 RS-232 to RS-422 adapter. RS-232 to RS-485/RS-422 adapters are available from many sources.

J8 and J9 Discrete Input/Output Connection

Connectors J8 and J9 contain all the programmable inputs and outputs for the 6445: • The 16 inputs are for external discrete switch-type devices. Inputs are used with functions and variables from the program. Six of the 16 inputs can be used for dedicated functions. The 6445 discrete input circuit is shown at the end of this section, in addition to several drive circuits. • The 12 outputs are programmable for sending out signals. Output 12 can be dedicated to indicate when the motor is moving. These outputs are driven by open collector NPN transistors and can sink up to 100 mA. Several load configurations are shown at the end of this section. For information on using the inputs and outputs, refer to the specific variable in the StepperBASIC Programming Manual.

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