FMS-2000C
LIT-12013504
35
Configuring the analog output for humidity control
After you have set up an analog input to measure humidity, map it to an available analog output. The control output can be used to
modulate an actuator for either a humidifier, steam source, or a dehumidifier.
Changing the operating mode for humidity control
Each of the four analog outputs of the FMS-2000C controller can be configured for the following operating modes:
•
Direct operating mode
•
PID operating mode
In direct operating mode, the output tracks the mapped analog input directly or inversely. The PID operating mode may or may not
employ the proportional-integral-derivative scheme for closed-loop control of the analog output. The range of the output can or cannot
include an offset. This is independent of the mode the analog output is configured to.
To change the operating mode, complete the following steps:
1. On the home screen, tap the
Settings
icon to enter the
Settings
menu.
2. To view analog input settings, tap
Analog I/O
.
3.
To find the analog output you want to change the operating mode for, swipe left.
4. On the
ANALOG
screen, tap
Output
.
5. To change the operating mode, expand
Operating Mode
arrow and tap
Direct Analog
or
PID Analog
.
6. Collapse
Operating Mode
to save the new settings.
Setting the input signal range for humidity
1. On the home screen, tap the
Settings
icon to enter the
Settings
menu.
2. To view analog input settings, tap
Analog I/O
.
3.
To find the analog output you want to adjust, swipe left.
4. On the
ANALOG
screen, tap
Output
.
5. On the
Output
screen, expand
Range
and choose from the following:
•
0-5V, 0-10V, 0-20mA
•
1-5V, 2-10V, 4-20mA
6. To save the new settings, collapse
Range
.
Specifying the action mode for humidity
1. On the home screen, tap the
Settings
icon to enter the
Settings
menu.
2. To view analog input settings, tap
Analog I/O
.
3.
To find the analog output you want to change the action mode for, swipe left.
4. On the
ANALOG
screen, tap
Output
.
5. To specify the action mode, tap the
Action Mode
arrow and tap
Direct
or
Reverse
.
6. Collapse
Action Mode
to save the new settings.
Selecting the corresponding analog input channel for humidity
Map the corresponding analog input channel to the analog output channel.
1. On the home screen, tap the
Settings
icon to enter the
Settings
menu.
2. To view analog input settings, tap
Analog I/O
.
3.
To find the analog output you want to change the analog input channel for, swipe left.
4. On the
ANALOG
screen, tap
Output
.
5. To select a corresponding analog input channel for this analog output, tap the
Input Channel
arrow.
6. Scroll to the corresponding analog input channel and tap the
Checkmark
icon to confirm your settings.
Setting up limits for humidity
Limits prevent the analog output from going beyond a predetermined voltage or current output. You can specify the minimum and
maximum limits for the analog output in percentage. The default minimum is zero and the default maximum is 100%.
1. On the home screen, tap the
Settings
icon to enter the
Settings
menu.
2. To view analog input settings, tap
Analog I/O
.
3.
To find the analog output you want to change the limit for, swipe left.
4. On the
ANALOG
screen, tap
Output
.
5. To set an upper and lower limit, tap the
Limit
arrow.
6. Move the sliders towards the
Plus
icon to increase or towards the
Minus
icon to decrease the
Upper
and
Lower
Limit.
7.
To confirm the new settings, tap the
Checkmark
icon.
