Mitsubishi Electric PUHY-P250YJM-A Data Book page 61

(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
Wiring distance 100 m or less.
* 20HP only
<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.
a) No.1, No.2 Controller board Dip SW 3-8: ON (Factory Setting: ON; External input will not be available when OFF.)
b) No.1, No.2 address board Dip SW 1-10: OFF (Factory Setting: OFF; External input will not be available when ON.)
c) 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.")
External input/output board
TB23
AC
SW12
A1
A2
(*1)
Short circuit plate
TB21
BC
SW11
B1
B2
(*1)
Short circuit plate
TB22
COM
1
L1
2
L2
3
L3
4
L4
5
Connection to terminal board
- 52 -
CN53
1
2
3
XA 4
XB 5
XA
CN54
XB
1
XC
XC 2
XD XD 3
XE XE 4
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.