46
4
Settings using Analog input
Remote water temperature setting input signal type
Analog input type can be selected from the following four types:
"0": 4-20 mA
"1": 0-10 V
"2": 1-5 V
"3": 2-10 V
Select item code 1075 to set the type of analog input signal to be used to set the water temperature from a remote
location.
Setting procedures
Set the dip switches on the circuit board as follows to change the settings.
Select the type of analog input signal to be used to set the water temperature from a remote location.
Press push switch SWP3 to select the item code.
Change the values with push switches SWP1 and SWP2.
Until the changed values are saved, the values will blink.
Press SWP3 once within one minute of changing the settings to save the change.
When the new setting is saved, the display will stop blinking and stay lit. The display will, then, return to the item code
display mode.
If SWP3 is not pressed within one minute, the change will not be saved, and the display will return to the item code
display mode.
Step 1
Set dip switches SW2, SW3,
SW421-1, and SW421-2.
SW421-1
SW421-2
4-20 mA
ON
ON
0-10 V
OFF
OFF
1-5 V
OFF
ON
2-10 V
OFF
OFF
SW2
SW3
-10
5
6
7
8
9
10
Switch settings
OFF
OFF
OFF
OFF
OFF
ON
OFF
Step 2
Select the item to be set with
push switch SWP3.
Step 3
Change the values with push
switches SWP1 (
↑
) or SWP2 (
↓
).
Items that can be set
Item
code
Initial
value
Unit
Setting
Note
Setting change from
an optional remote
controller
Incre-
ments
Lower
limit
Upper
limit
Water temperature
setting input signal type
1075
0
1
0
3
Not possible
Step 4
Press push switch SWP3 to save
the changed value.
WT08219X05.book 46 ページ ２０１８年１０月１日 月曜日 午後７時４７分
Содержание QAHV
Страница 83: ......
