Troubleshooting Guide; Limit Programming Troubleshooting - Sentry DCC02 Installation And User Manual

Troubleshooting Guide

Troubleshooting Guide
Troubleshooting Guide
The following is a thorough guide to solving problems that occur with the DCC02. It
is split into two sections, one for diagnosing troubles during limit programming, the
other for diagnosing problems during normal running. These are by no means
exhaustive lists of all the possible combinations of problems that occur, but these
guides do cover over 90 percent of the problems that our customers experience with
this product and how to best resolve them.
Always work through these guides first when solving problems, before calling
technical support. This will allow us to provide the best possible support to every
single customer. Where a particular problem is not described in these guides, you
are encouraged to call us or e-mail us for prompt resolution to your query. We also
publish a FAQ on our website, be sure to have a look at that as well for any late-
breaking issues that have come to light since publication of this manual.
SECTION A: LIMIT SET-UP TROUBLESHOOTING
Problem
Cannot set the door up, system
constantly beeps four times when
power is applied.
The door moves a short distance,
then stops with an error beep
when attempt is made to program
the limits.
Likely Cause(s)
• Power Problem
• Problem with
interconnecting cable
• Main fuse (F2) in console
blown or fatigued.
• Door not balanced
• Spool wheel bent
• Dirt/foreign matter on
encoder wheel.
6
• Check fuse F2
• Check the wiring, especially if
you lengthened the cable.
Check for voltage across the
two outer terminals of the
interconnecting cable. If none
present, replace F2 in the wall
console.
• Check the door, if there's a
tight spot during upwards
travel, you will need to fix it.
• A bent spool wheel pulls the
driving wheel away from the
motor chassis, leading to it
coming off the chassis
altogether and the encoder no
longer rotates. Replace spool
wheel or fit an adaptor wheel
available from the place where
you purchased this product.
• Sometimes, dust and dirt from
the installation gets onto the
encoder wheel, blocking the
holes and the system can no
longer measure distance
traveled. Ensure the area is
clean and free of dust/foreign
matter.
44
Possible solution(s)