Explanation Of Functions - Panasonic U-72MF1U9 Service Manual

2. Indoor Unit Control PCB

2-7. Explanation of Functions

T10
(CN061)
(Remote control operation)
T10*
(CN061)
Forced OFF control
* Need to set EEPROM
data at Code "2E" to
"0001" (Refer to Page
2-35/ Detailed Setting
Function)
6P plug (yellow): Used for remote control.
Control items: ①Start/stop input
③Start signal output ④Alarm signal output
(Condition)
① 1-2 (Pulse input): Unit ON/OFF condition switching with a pulse signal.
(1 pulse signal: shortage status more than 300msec.or more)
② 2-3 (Static input): Open/ Operation with Remote is permitted.(Normal condition)
Close/ Remote controller is prohibited.
③ 4-5 (Static output): 12V output during the unit ON. / No output at OFF
④ 5-6(Static output): 12V output when some errors occur / No output at normal
Example of signal
1
2
COM
3
4
+12V
COM 5
T10
6
(yellow)
NOTE
The wire length from indoor unit to the Relay must be within 6.5ft.
Pulse signal changeable to static with JP cutting. (Refer to JP001)
This is a method to control the indoor unit individually.
(Condition)
1-2 (Static input): Close/ Operation with Remote is permitted. (Normal condition)
Open/ Unit is forcibly OFF and Remote controller operation is prohibited.
Example of wiring
T10
(YEL)
Indoor unit
control PCB
NOTE
The wire length from indoor unit to the Relay must be within 6.5ft.
Special-order parts: Wire K 623 176 6814
4 - 13
②Remote controller prohibit input
300msec.
or more
1-2 (pulse input)
4-5 (output)
Unit condition ON
Relay
(Field supply)
POWER
External contact
(Card switch box, etc.:
field supply)
PCB and Functions
+12
OFF ON
The contact in the
figure is a state
where the card is
pulled out.
1
2
3
4
5
6
7