Page 24
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9487 Dielman Rock Island Ind Dr, St. Louis, MO 63132
Operation and Maintenance Manual
Rev: C17
A – 8.5: Display Options
Once you have entered System Configuration,
select Display Options from the menu.
Page Delay (Op):
Here you can set the delay for
scrolling to the next page in the normal display.
These screens will only scroll when not in a menu
screen.
Backlight Delay (Op):
Only shown if the LCD
display with the white backlight display is installed and one
of the two-state backlight modes is used.
When a key is
pressed, delay this amount of time before dimming
or shutting off the backlight.
Toggle LCD Mode (Op):
Toggles the LCD
display between negative and positive modes.
A – 9: VFD Turndowns
VFD Turndowns allow you to trigger or cancel
manual turndowns (must have a manual turndown
enabled for this menu to appear). This will also
display the next scheduled turndown.
A – 10: 4-20mA Outs
The 4-20mA output board allows you to connect to
either a building management system or to control a
VFD.
If you have a 4-20 mA board installed in your system
you may choose 4-20mA outputs from the main
menu. By selecting one of the 4-20mA output
channels you will be able to select the following:
Usage (Mgr):
Selects what to use the selected 4-
20mA output channel for.
•
Recorder Out:
Output a 4-20mA signal based
on one of the controller’s inputs, feed set points,
or alarm set points. Once you have selected
Recorder Out, you will need to then select the
Source (see below).
•
VFD Control Out:
Use this channel to control
a VFD unit connected to the recirculation
pump.
•
Disable:
Disables the 4-20mA output.
Source (Mgr):
Only shown if the usage is set to Recorder
Out.
Configures the recorder out's signal source.
This is broken up into four different categories to
make selection of the source easier. Select the
Recorder Out's source from one of the following
lists:
Inputs:
Lists all enabled inputs compatible for
outputting on the selected 4-20mA output
channel.
Feed Set Points:
Lists all enabled controls
using feed set points. Note that some feeds
have more than one set point to control to. If
a control's feed point is selected, the output
signal will be whatever value that feed is
controlling to.
High Alarm Set Points:
Lists all available
high alarm set points for use as the source.
Low Alarm Setpoints:
Lists all available low
alarm set points for use as the source.
Disable:
Disables the recorder out.
20 ma value (Mgr):
Only shown if usage is set to
Recorder Out.
Enter the value which the recorder
will output 20 mA for.
4 ma value (Mgr):
Only shown if usage is set to
Recorder Out.
Enter the value which the recorder
will output 4 mA for.
Example: Source: ORP input, 4 mA value = 600
mV, 20 mA value = 900 mV. ORP values
between 600 and 900 mV are lineally scaled
between 4 and 20 mA as shown below.
A – 11: Access Menu
The controller will require users to enter their access
code before allowing them to enter the menus or set
any values under the quick set keys. The controller
automatically displays the access screen whenever a
user does not have a high enough access level to
enter a specific screen.
To enter an Operator access code, press 1.
To enter a Manager access code, press 2.
If at any time you wish to logon as another access
level, you may do so by pressing the Menu key and
selecting Logon from the main menu.
0
4
8
12
16
20
24
500
600
700
800
900
1000
ORP (mV)
o
u
tp
u
t (
m
A
)
