Delta Tau PMAC2A-PC/104 Manual de usuario descargar pdf (Pagina 8)

Hardware Reference Manual

4 Hardware Setup

INTRODUCTION

The PMAC2A PC/104 motion controller is a compact, cost-effective version of Delta Tau’s PMAC2

family of controllers. The PMAC2A PC/104 can be composed of three boards in a stack configuration.

The baseboard provides four channels of either DAC ±10V or pulse and direction command outputs. The

optional axis expansion board provides a set of four additional servo channels and I/O ports. The optional

communications board provides extra I/O ports and either the USB or Ethernet interface for faster

communications.

Acc-1P: Axis Expansion Piggyback Board

Acc-1P provides four additional channels axis interface

circuitry for a total of eight servo channels, each including:

• 12-bit ±10V filtered PWM analog output

• Pulse-and-direction digital outputs

• 3-channel differential/single-ended encoder input

• Four input flags, two output flags

• Three PWM top-and-bottom pairs (unbuffered)

Acc-1P Option 1: I/O Ports

Option 1 provides the following ports on the Acc-1P axes

expansion board for digital I/O connections.

PMAC2A PC/104 Base Board shown

stacked with the Acc-1P axes

•

Multiplexer Port: This connector provides eight input lines and eight output lines at TTL levels.

When using the PMAC Acc-34x type boards these lines allow multiplexing large numbers of inputs

and outputs on the port. Up to 32 of the multiplexed I/O boards may be daisy-chained on the port, in

any combination.

• I/O Port: This port provides eight general-purpose digital inputs and eight general-purpose digital

outputs at 5 to 24Vdc levels. This 34-pin connector was designed for easy interface to OPTO-22 or

equivalent optically isolated I/O modules when different voltage levels or opto-isolation to the

PMAC2A PC/104 is necessary.

• Handwheel port: this port provides two extra channels, each jumper selectable between encoder input

or pulse output.

Acc-1P Option 2: Analog-to-Digital Converters

Option 2 permits the installation on the Acc-1P of two channels of analog-to-digital converters with ±10V

input range and 12-bits resolution. The key component installed with this option is U20.

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Delta Tau PMAC2A-PC/104 Manual de usuario Pagina 8