Motorola MVME167 User Manual download pdf (Page 24)

Stepper Motor Controller

24 of 56 ICD-13/05 ICD 13—Standard Controller

• Home Input

• +5V and Ground

10.1 Description

The Standard Controller stepper motor controller is the Oregon Microsystems VME8-

8 Intelligent Motion Controller. The OMS card comes with a User’s Manual[13] which

describes the card, jumper settings and external connections, the programming interface

and firmware command structure, Oregon’s warranty and repair procedures and a full

circuit diagram.

10.2 Installation

Page 3-7 of the Users Manual [13] contains a diagram which should be referred to when

setting the jumpers to the following positions:

Jumper

J34 is not mentioned the table above because it is dependent on the particular

application, setting the polarity of the limit inputs for the various motor axes.

The standard EPICS distribution can support up to 8 OMS cards, and the addresses for

these are selected using the A7 to A4 pins of jumper J27. The test instructions below

assume that the module is set to card 0; adjustments to the addresses given will be

needed if a different card number is used. The different settings are as follows:

The I/O connections to the OMS card are all made through the P2 backplane connector.

The simplest way to make these connections is to use an IDC connector, 64 way

DIN41612 using rows A and C. The IDC cable can be split into groups of 8 conductors

with each group comprising the signals for one motor axis (see page 4-2 of the User’s

Manual for the pin assignments).

The module test for the OMS card presented here does not attempt to check the special-

ized functionality of the card at all, it just verifies that it is possible to send commands to

the on-board CPU and that a sensible reply is returned.

TABLE 14. Stepper Motor Controller Specifications

Item Description

Model Number VME8-8

Manufacturer Oregon Microsystems

Input Power +5 Volts @ 3 Amps (max.)

Connections via VMEbus P2 connector.

Dimensions 1 slot x 6U

Operating Temperature 0° to 50° C

Humidity 0% to 90% non-condensing

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Motorola MVME167 User Manual Page 24