beautypg.com

Status reporting, Define origin modes – Elmo SERVO AMPLIFIER DBP SERIES User Manual

Page 24

background image

23

DBP - Rev 6/93

Auto restart

The power stage inhibit will automatically be released upon clearing the

cause of the inhibit.

Status Reporting

Status is available to the user in several ways.

Communication

In response to the Tell Status command (TS) the DCB sends a coded message

describing the status of the amplifier.

In addition, the host may request certain information at any time. This

consists of the state of the system (GN?, ZR?, PL?, KI?), the state of the

local inputs (TI), the torque level (TT), the current motor position (TP), the

current motor velocity (TV) and the reason for a stop condition (TC).

Refer to the DCB Software Manual for further details.

Hardware signal

Motion complete signal

This output will go to high when motion is complete.

Inhibit output

Whenever the amplifier is inhibited, this open collector output goes to low.

When using Elmo's mother boards a potential free relay replaces the open

collector output.

4-digit display

Whenever a fault occurs, a fault message will be displayed for easy visual

information. See chapter 9.1 for a summary of all amplifier's fault

indications.

Define origin modes

The origin is that location at which the absolute position of the motor

equals zero. This special location may be defined in two ways. First, the user

may send a command (DH) which defines the current motor position to be the

origin. The alternate method is to request the DCB to perform the homing

sequence by commanding HM.