Mitsubishi Electric CITY MULTI PFD-P250-A Installation Manual page 5

Air-conditioners for building application indoor unit
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[Fig. 7.5.1]
<A> Model 250
A Voltage input (with polarity)
B External power supply
SW12
C Start/Stop
D No-voltage input
E Common
SW11
F Start/Stop
G Relay contact output
H Display power supply
I Operation status
L1
J Fault
L2
L Terminal block connection
<B> Model 500
A Voltage input (with polarity)
B External power supply
SW12
C Start/Stop
Short wiring
D No-voltage input
E Common
SW11
F Start/Stop
Short wiring
G Relay contact output
H Display power supply
I Operation status (No.1)
L1
J Fault (No.1)
L2
I Operation status (No.2)
L3
J Fault (No.2)
L4
L Terminal block connection
[Fig. 7.5.2]
A Site wiring
B Fix low-voltage system
(DC30 V or less) wiring
with clamps and pass
to unit via transmission
line wiring holes.*1
C Fix high-voltage
system (AC100 V or
AC200 V) wiring with
clamps and pass to
unit via power supply
wiring holes.*2
E model 500 only
K External I/O board
TB23
AC
A1
A2
TB21
CN53
BC
1
B1
2
B2
3
4
XA
TB22
COM
5
XB
XA
1
CN54
XB
2
1
2
3
3
4
4
5
5
M Connector connection
N Wiring distance 100 m or less.
K External I/O board
TB23
AC
A1
A2
TB21
CN53
BC
1
B1
2
3
B2
4
XA
TB22
COM
5
XB
XA
1
CN54
XB
2
1
XC
2
3
XC
XD
4
3
XD
XE
4
5
XE
5
M Connector connection
N Wiring distance 100 m or less.
E model 500 only
D To CN51 on control
board (inner wiring).
D To CN51 on control
board (inner wiring).
7.5
A Voltage input (with polarity)
External
Pulse input of start or stop
power supply
DC12 - 24 V
Input current (per contact)
Approximately 10 mA (DC12 V)
Remote Start/Stop switch
SW12
* Toggles ON/OFF each time switch is pressed (pulse input).
D No-voltage input
Remote Start/Stop switch
SW11
* Toggles ON/OFF each time switch is pressed (pulse input).
Micro-current contacts (DC12 V 1 mA)
G Relay contact output
Display
DC30 V 1 A
power supply
AC100 V/200 V 1 A
L1, L3
Operation status
L2, L4
Fault status
XA ~ XE
Relay (allowable current 10 mA - 1 A)
F Low-voltage system clamps
External I/O board
G Low-voltage
system wiring
H High-voltage
system wiring
I High-voltage
system clamps
5

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