Mitsubishi Electric PUHY-P250YHM-A Data Book page 34

(2) Wiring
Input with voltage
External power source
Stop/Start
Input without voltage
Common
Stop/Start
Relay Contact Point Output
Power Source for Display
No.1 Operation Status
No.1 Error Status
✻
No.2 Operation Status
✻
No.2 Error Status
<Input with Applied Voltage>
DC12~24V
External power
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 or less 1A
for displays AC220-240V 1A
L1 No.1 Operation Status Indicator Lamp
L2 No.1 Error Status Indicator Lamp
● 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.")
SW12
(*1)
Short circuit plate
SW11
(*1)
Short circuit plate
L1
L2
L3
L4
Wiring distance 100 m or less.
✻
20HP only Connection to terminal board
30
External input/output board
TB23
AC
A1
A2
TB21 CN53
1
BC
2
B1
3
B2
XA
4
TB22
COM XB 5
XA
1
CN54
XB
2 1
XC XC 2
3
XD 3
4 XD
XE 4
5 XE
5
Connection with connectors
<Input without voltage applied>
Remote start/stop
SW11
✻
Each pressing of the SW (Pulse input) switches
between ON and OFF.
Contact: Minimum applicable load DC12V 1mA
Contact rating DC12V 0.1A and over
L3 No.2 Operation Status Indicator Lamp
L4 No.2 Error Status Indicator Lamp
Relay
XA~XE
(Permissible Electrical Current: 10mA~1A)
(✻1) For instructions on how to
install the short-circuit
plate, refer to "Caution on
using the external input
function" shown on the
next page.