External Input/Output Specifications - Mitsubishi Electric PUD-P-YMF-C Manual

8-5.External input/output specifications

(1) Input/output specifications
Input
Usage
Function
Start/stop Turning
ON/OFF
the indoor
unit
✻1 Use minute-current contact (DC12V 1mA)
(2) Wiring
<Input with Applied Voltage (polarized)>
DC12~24V
External powe
Electrical current input (per contact)
source
Approximately 10mA (DC12V)
Remote start/stop switch
SW12
Each pressing of the SW (Pulse input) switches
between ON and OFF.
<Relay contact output>
Power supply DC30V 1A
for displays AC220-240V 1A
L1 No.1 Operation Status Indicator Lamp
L2 No.1 Error Status Indicator Lamp
G Setting on the Indoor Unit
Confirm the following setting when using external input.
1 No.1, No.2 Controller board Dip SW 3-8: ON (Factory Setting: ON; External input will not be available when OFF.)
2 No.1, No.2 address board Dip SW 1-10: OFF (Factory Setting: OFF; External input will not be available when ON.)
3 Normal/Local switch inside the unit controller box is set to "Normal." (Factory Setting: Normal; External input will not be
available when it is set to "Local.")
Signals
Pulse
(a-contact with voltage/without
voltage) ✻1
<With voltage>
Power Source: DC12~24V
Electrical Current:
Approximately 10mA (DC12V)
<Standard Pulse>
over 200ms
Input with voltage (polarized)
External power source
SW12
Stop/Start
Short Circuit
Input without voltage
Common
SW11
Stop/Start
Short Circuit
Relay Contact Point Output
Power Source for Display
No.1 Operation Status
No.1 Error Status
✻
No.2 Operation Status
✻
No.2 Error Status
✻
20HP only Connection to terminal board
Maximum : 100 m
Output
Function
Obtaining signals indicating
No.1
operation status of indoor units
Operation
in each refrigerant circuit.
Status
Obtaining signals indicating
No. 1
error status of indoor units in
Error Status
each refrigerant circuit.
Obtaining signals indicating
No. 2
operation status of indoor units
Operation
✻ in each refrigerant circuit.
Status
Obtaining signals indicating
No. 2
error status of indoor units in
Error Status
✻
each refrigerant circuit.
✻ 20HP only
External input/output board
TB23
AC
A1
A2
TB21
BC
B1
B2
TB22
COM
XA
1
L1
XB
2
L2
XC
3
L3
XD
4
L4
XE
5
Connection with connectors
<Input without voltage applied>
Remote start/stop
SW11
✻
Minute-current contact: DC12V 1mA
L3 No.2 Operation Status Indicator Lamp
L4 No.2 Error Status Indicator Lamp
Relay
XA~XE
(Permissible Electrical Current: 10mA~1A)
32
Usage
Relay a-contact
output
DC 30V or
AC 100V/200V
Standard Current :
1A
Minimum Current :
1mA
CN53
1
2
3
4
XA
5
XB
CN54
1
2
XC
3
XD
4
XE
5
Each pressing pf the SW (Pulse input) switches
between ON and OFF.
Signal