Peak/Hold Current Definition

This MotoHawk™ block instantiates a resource to control the Peak and Hold current levels.

Block ID

PeakHold Current Definition

Library

MotoHawk_lib/Advanced Digital I/O

Description

Overview

This MotoHawk™  block instantiates a resource to control the Peak and Hold current levels.
The intent behind the Peak/Hold blocks is to expose the peak/hold behavior of hardware drivers that support dual load current thresholds. The dual current thresholds are nominally set to provide a "peak" current and a "hold" current. The higher "peak" current is initially applied to allow an injector or valve like load to "pull-in". The current requirements to "pull-in" an actuator are higher than the current required to keep an actuator "pulled-in". Thus the current in the load must be "peaked" to achieve "pull-in" and then "held" at a lower threshold to maintain actuator "pull-in".

Some modules support configurable peak and hold levels. This block in conjunction with the Peak/Hold Current Set block allow the user to set a desired current level. Hardware limitations may force the applied levels to be clipped to achievable values. See the Set block for more details.

Block Parameters

Parameter Field	Values	Comments/Description
Name	Alpha-numeric text, single-quote enclosed	Enter a unique resource name. This can be the name of the sensor that is being read.  No special characters, such as spaces, dashes, commas (underscore allowed).  If no name is given, a name generated that includes the resource name.
Resource	Drop-down list	Select from available resource listings.