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TB215 Rev2 Auto Lube Pump Configuration for Millport and Atrump/Centroid
Machines
Purpose
This document describes how to properly configure automatic lubrication pump hardware settings for use with
Centroid controls These guidelines can be used with any automatic lubrication pump See Tech Bulletin
TB171 for more information on different software configurations for other types of lubrication systems
Software Configuration
Parameter 179 controls the operation of automatic lubrication pumps The default value for this parameter is
shown below
Parameter Description Value
179 XPLC Parameter LP9 3015
The value 3015 indicates every 30 minutes the lubrication pump will be activated for 15 seconds by applying
power through the PLC The timer is only activated when running a program or using MDI This value may be
adjusted as necessary depending on your particular machine as shown in the examples below
Mills that run long jobs >30 minutes with a lot of slow movements 3015
Lathes running short jobs with many fast movements 1010
Mills running many short jobs 2015
Hardware Configuration
The pictures below show the correct hardware configurations for typical automatic lubrication pumps
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The interval INT timer should be set to 0 in all cases When power is applied to the lubrication pump the
interval INT timer dictates when the pump will start running For example if the interval INT is set to 30 the
pump will start running 30 minutes after power is applied The control will only apply power to the lubrication
pump for 15 sec every 30 min If this is set to anything other than 0 when power is applied the pump will
never be activated
If equipped the activation ACT timer determines how long the pump will run supplying lubrication to the
machine This value must be greater than the activation time set by the control for proper operation For
example if the control is set to pump for 15 sec and the lube pump is set to 10 the activation ACT timer on
the pump will override the control shorting each cycle by 5 sec
NOTE
Failure to configure the hardware properly may lead to inadequate lubrication of the machine resulting
in premature wear and possible damage
Lube pumps included with new model Atrump/Centroid machines have eliminated the hardware controls an
added a pressure guage as shown in the following picture
These pumps are designed to be operated exclusively with the Centroid control  The same guidlines for
parameter 179 as listed above should be followed with this model pump
The pressure guage can be used to diagnose several different problems including leaks and blockages by
monitoring the max pressure time to build to max pressure and the time to bleed off to zero  These values
should be recorded when a new machine is installed and checked on a weekly basis as part of normal routine
maintenance
To measure the max pressure build time and bleed time first set parameter 179 to 0 0000 Â Then press
MDI from the main menu  As soon as MDI starts power will be applied and the unit will begin to pump  Once
max pressure has been reached press to exit MDI and stop the pump  Be sure to reset parameter 179
to its original value before using machine
Every unique machine will have its own set of values that should be compared to the original values at the time
of installation  The values themselves can vary due to voltage lube line lengths restrictors and other factors
so monitoring these values over time is the only way to effectively diagnose and prevent problems that can
lead to significant wear and damage to the machine
A reduced max pressure and/or reduced time to bleed off to zero indicate possible leaks in the system  A
greater max pressure and/or shorter time to build to max pressure can be an indication of blockages in the
system
Document History
Rev2 Created on 2009 06 03
by #244
Rev1 Created on 2008 03 27
by #244