Mitsubishi Electric CITY MULTI PFD-P250VM-E Manuel D'installation page 6

7
[Fig. 7.5.1]
<A> Model 250
A With-voltage input
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
N Wiring distance 100 m or less.
L Terminal block connection
<B> Model 500
A With-voltage input
B External power supply
SW12
C Start/Stop
(*1)
Short circuit plate
D No-voltage input
E Common
SW11
F Start/Stop
(*1)
Short circuit plate
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
N Wiring distance 100 m or less.
L Terminal block connection
• Notes on using external functions (Model 500 only)
Caution
When using the external input function on the indoor unit that is connected to a two-
refrigerant circuit, connect the short-circuit plate that is supplied with the unit to the
appropriate terminals on the external input-output board.
Without the short-circuit plate, the unit will not function properly.
Don't connect the short-circuit plate in case of a one-refrigerant circuit.
· Connecting the short-circuit plate
<The case of with-voltage input>
CN53
Short-circuit plate
TB21
TB23
AC A1 A2 BC B1
External input
<The case of no-voltage input>
CN53
Short-circuit plate
TB21
TB23
AC A1 A2 BC B1 B2
External input
6
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
3 2
3
4
4
5
5
M Connector connection
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
XC
3 2
XC
XD
3
4
XD
XE
5 4
XE
5
M Connector connection
External input-output board
CN54
TB22
B2
COM 1 2 3 4 5
External input-output board
CN54
TB22
COM 1 2 3 4 5
7.5
A With-voltage input
External Pulse input of start or stop
DC12 - 24 V
power supply
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).
Contact: Minimum applicable load DC 12 V 1 mA
Contact rating DC 12 V 0.1 A and over
G Relay contact output
Display DC30 V 1 A or less
power supply AC220 - 240 V 1 A
L1, L3 Operation status
L2, L4 Fault status
XA ~ XE Relay (allowable current 10 mA - 1 A)
(*1)
For instructions on how to install the short circuit plate, refer to "Notes on using
external input function" shown below.
[Fig. 7.5.2]
E model 500 only
For instructions on how to install
the short circuit plate, refer to
"Notes on using external input
function" shown on the left.
CN53
TB21
TB23
AC A1 A2 BC B1 B2
B Fix low-voltage system
(DC30 V or less) wiring
with clamps and pass to
unit via transmission line
wiring holes.*1
D To CN51 on control board
(inner wiring)
CN54
TB22
COM 1 2 3 4 5
E model 500 only
C Fix high-voltage system
(AC220 - 240 V) wiring
with clamps and pass to
unit via power supply
wiring holes.*2
A Site wiring