Instruction Manual

Watlow EZ-ZONE
®
PM Limit Controller • 36 • Chapter 3 Keys and Displays
Custom Menu Parameter Options
Description Prompt *
Limit High Set Point
[lh;s1]
Limit Hysteresis
[l;hy1]
Limit Status
[l;st1]
* The numerical digit shown in the prompts above (last digit), represents the parameter instance and can be
greater than one.
Modifying the Display Pairs
TheHomePage,beingacustomizedlistofasmanyas20parameterscanbeconfiguredinpairsofupto10
viatheDisplayPairs[d;prs] prompt.
Note:
Forfirmwarerelease11.0andabovetheDisplayPairspromptcanbefoundintheSetupPageunderthe
Global Menu [glbl].
Forfirmwarereleasesbelowrevision11.0thispromptcanbefoundintheFactoryPageundertheDiagnos-
tic Menu [diag].
The listing in the table that follows represents the Limit default Home Page. It is important to note that some
of the prompts shown may not appear simply because the feature is not being used or is turned off. As an ex-
ample,thepromptshowninposition3(LimitLowSetPoint)willnotappearunlesstheLimitSides[`l;sd]
is set up for Both (high and low) or low in the Setup Page under the Limit Menu.
Home Page Default Parameters
Custom Menu
Number
Home Page Display
(defaults)
Parameter Name Custom Menu Display
(defaults)
1(Upperorleft
display)
Numerical value Active Process Value
[Ain1] Firmwarerevision11.0andabove
[`pro] Firmwarebelowrevision11.0
2 (Lower or
right display)
[safe]
or
[fail]
Limit Status
[l;st]
3 Numerical value Limit Low Set Point
[ll;51]
4 Numerical value Limit High Set Point
[lh;51]
5 to 20 (skipped)
[nonE]
Note:
When the Limit is in a default state (as shipped from factory), the display will flash where the top display
will show the Process Value and [Li;hi] and the bottom will display [attn] and [FAIL].
As stated above, the user can define ten pairs of prompts to appear on the display every time the Advance
‰
key ispushed.InadefaultstatetheDisplayPairs [d;prs] prompt is equal to one with the first pair displayed
as is defined in the Home Page table above. If the DisplayPairspromptweretobechangedtotwo,pushing
the Advance key one time would cause the display to show the Limit Low Set Point on the top and the Limit
HighSetpointonthebottomreflectingposition3and4respectively.
Note::
Both of these parameters are writable and being paired in this manner only the Limit High Set Point can
be changed. Pairing two writable prompts will only allow for the bottom one to be changed. On the other
hand, if a writable value is placed on the upper display and is paired with another read only parameter on
the lower display, the arrow keys affect the setting of the upper display.
ThedisplaycanbeconfiguredtoscrollthroughtheDisplayPairsbygoingtotheSetupPageundertheGlob-
alMenuandchangingtheDisplayTime[`d ;ti] prompt to something greater than 0. If set to 2, the display
willscrollthroughthepairsevery2secondsstartingwithCustomMenuPair1and2,3and4,etc...