ABB DSTA154 DSTA 154 CPU card

The 6445 requires a serial communication link in order to develop StepperBASIC software (using PacCom). A serial interface may be used under software control to interface the 6445 with other user-supplied equipment such as: • Operator displays • Host computers • Programmable controllers (PLC) The 6445 uses serial communication interfaces supported by the RS-232 and RS-485 hardware specifications.The electrical and magnetic losses of the motor must not exceed the motor power dissipation rating. This is of special concern at high speed and with low inductance motors. The motor case temperature should not exceed 100 degrees C. If you need help in selecting a motor, contact your local Pacific Scientific distributor for sizing and motor compatibility assistance.

Single- and Multi-unit control

 For controlling a single 6445, use RS-232 communications and install cable as described in section 2.5.4.1 “J7 Serial Port - RS-232 Connection.” For controlling multiple 6445s, use RS-422 or RS-485 communications, which permit a single PC to host from 1 to 31 6445s (each requiring a unique switch selectable address). For detailed information on setup refer to section 2.5.4.2 “Serial Port - RS-422 or RS-485 Connection.”

Digital I/O

 Enable input - One dedicated input to enable the controller. Connecting this input to I/O Return enables the 6445. Fault output - An open collector (NPN) dedicated output showing controller fault status. This output turns off to indicate a fault. Maximum current sinking capability is 100 mA and maximum off voltage is 16 volts. General inputs - 16 inputs to support logic type interfaces. The input circuitry is intended to be operated with open collector type circuitry. These inputs can be polled under software control. Six of the 16 inputs can be pre-defined for specific functions: LIMIT +/-, START/STOP, and JOG +/-.

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