11.5
Dehumidification Function
Description
The FY controller provides dehumidification function to protect the heater. When the power is turned on, the heater is
dehumidified with low power. When the dehumidification is completed, the normal power is output to the heater.
Function Diagram
PV < RHTC use RHPO as manipulated output value
scale(%)
100.0
COUT
15.0
RHPO
RHTC
temperature
Parameter
Parameter
Symbol
Content
Range
Default
Level
Hide/
y
a
l
p
s
i
D
N
I
M
X
A
M
Dehumidification temperature
*RHTC
If PV less than RHTC manipulated
200.0
0.0
0.5
Level 3
SET5.3
value = RHPO
(Please refer to Chapter 11.5)
Dehumidification manipulated value
0 : OFF disable dehumidification
*RHPO
function
100.0
OFF
OFF
Level 3
SET5.3
Other values : 0.1~100.0
manipulated value
(Please refer to Chapter 11.5)
* This parameter is multi-display, wnen OUTY≠3 display RHTC
* This parameter is multi-display, wnen PROG=OFF display RHPO
Example
After the controller is turned on, when the PV does not reach 50°C, output will be 20% of the operation time. When the time
exceeds 15 minutes or the PV is greater than 50°C, the controller will produce output of normal PID gain.
Parameter setting
Level
Parameter
Set value
Description
4
SET5.3
1
Display parameter RHTC
、
RHPO
1
SV
100.0
Target temperature
3
RHTC
50.0
Execute de-humidifying function when PV is
lower than this temperature
3
RHPO
20.0
20% operation output when executing
de-humidifying function
37
FY/FU operation manual
