Watlow Series SD Limit - Manual (Page 5)

Wa t l o w S e r i e s S D L i m i t
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3
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C h a p t e r 1 O v e r v i e w
Features and Benefits
Patented User Definable Menu System
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Simplifies operator interface.
User Defined Default Settings
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Restores user defined controller settings.
INFOSENSE™ Technology
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Improves sensor accuracy by a minimum of 50%.
INFOSENSE™ Technology
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Improves sensor accuracy by a minimum of 50%.
Infrared Communications
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Facilitates controller setup, operation and moni-
toring.
Up to three outputs (1/32 DIN two outputs only)
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Application versatility.
• Configuration flexibility
Dual Displays on all models
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Better monitoring of process changes.
Also available in an PID temperature controller
version.
How to use the Series SD limit
Before you use your Series SD limit, it must be in-
stalled and configured correctly. Which setup steps
you need to perform will depend on how you will
use it.
If you purchased the limit to design into your
products:
You will need to do the first three steps and maybe
some of the fourth step. Some wiring, such as the final
wiring of a communications connection or an alarm
output for signaling an external device, might be left to
the end user. In highly specialized applications with lit-
tle variation in operation and heat load, the OEM
might configure almost all the parameters.
If you purchased the limit to design and install
into new equipment for your own use or to retro-
fit into existing equipment:
You will need to complete all four steps.
If you purchased the limit installed in equipment
designed around it:
You will probably only need to do the fourth step. In
some instances, you may need to wire it for serial com-
munications and/or an alarm output. Some serial com-
munications parameters in the Setup Page may need to
be changed.
Step 1: Mount and install the limit.
The Series SD limit is designed to be panel mounted
in a standard DIN opening. The Series SD is available
in 1/32 DIN, 1/16 DIN, 1/8 DIN-horizontal, 1/8 DIN-
vertical and 1/4 DIN sizes. Cut the correct size hole in-
to the panel and mount the limit, using its mounting
brackets. See Chapter Two for details on installation
and mounting.
If you retrofit the Series SD limit into an existing
application, you may need to modify an existing open-
ing, either by cutting it larger for a larger limit or using
a Watlow adapter plate to adapt it to a smaller limit.
Step 2: Wire the limit.
The limit will need to have its power, input and out-
put wiring installed. The wiring depends on the specific
model number of the Series SD limit. The dimension il-
lustrations in Chapter Two show the location of the
model number on each DIN size. Use the model num-
ber to determine which wiring diagrams to follow for
your limit. See Chapter Two for wiring details.
Step 3: Configure the Setup Page.
Setup Page parameters tell the limit what input
and output devices are wired to the limit and how it
should function. Without the proper Setup Page set-
tings, the limit will not operate or could operate errati-
cally. Since these settings require detailed knowledge
on the wiring and operation of the equipment, the
OEM or the designer normally programs these parame-
ters. Some settings, such as the baud rate or device ad-
dress, are Setup Page parameters, but would probably
be set by the end user.
These settings should be recorded for future refer-
ence. The settings can also be stored using the [Us;rS]
parameter, in the Factory Page. For saving and restor-
ing parameters, see Chapter Eight, Features. For de-
tails on configuring the Setup Page, see Chapter Five,
Setup Page.
Step 4: Configure the Operations Page.
The Operations Page contains the parameters that
the equipment operator may need to set or change from
time to time. This includes limit and alarm set points.
In some cases the OEM manufacturer may set most of
these parameters because the equipment operates with
little variation (i.e., always the same limit and alarm
set points, always the same heat load). In equipment
where demands could vary significantly, the OEM may
leave parameter adjustments to the end user (i.e.,
many different temperature settings, different heat
loads).
The Operations Page on the Series SD limit is cus-
tomizable so that only the parameters that the operator
may need to use will appear in the display. Settings
that won’t need to be adjusted can be hidden from the
operator, using the Programing Page. For more details
on the Programing Page, see Chapter Eight, Features.
For details on configuring parameters in the Opera-
tions Page, see Chapter Six, Operations Parameters
Tables.
Once you have verified the limit is operating proper-
ly, be sure to document all of your parameter settings.
Each parameter table has a settings column for you to
write in your values.