Mitsubishi Electric MAC-333IF-E, Technical Manual

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21
MAC-333IF-E
(2) LED indications of ON/OFF operation signal and normal/abnormal signal
Function
summary
ON/OFF signal and normal/abnormal signal of the room air conditioner can be indicated using LED.
System
configuration
MAC333IF-E
C +
R1
TB571
R2
TB530
DC power
source
12 V
DC power source
Resistance 1
Resistance 2
LED 1
LED 2
LED 1, 2 : Select LED which illuminates around 10 mA.
Resistance 1, 2: 1.2 k
Ω , 1/4 W
a
b
SYSTEM CONTROL interface
* External power source is required for the status output.
Behavior
Switch setting
· LED 1
· LED 1 is illuminated when the air conditioner is on.
· LED 1 turns off when the air conditioner is off.
· LED 2
· LED 2 is illuminated when the air conditioner operates abnormally.
· LED 2 turns off when the air conditioner operates normally.
· Output change
Change the output logic.
SW No. Dip switch Operating details
SW502-1
· OFF :
· It behaves as described in the “Behavior” section in this chart.
· ON:
· LED 1
· LED 1 turns off when the air conditioner is on.
· LED 1 is illuminated when the air conditioner is off.
· LED 2
· LED 2 turns off when the air conditioner operates abnormally.
· LED 2 is illuminated when the air conditioner operates normally.
Specifications
of communication
cable · Cable type
· a: Sheathed cable (Stranded cable), size 0.3 mm
2
to 1.25 mm
2
/ Sheathed cable (Solid cable), ø0.4 mm to ø1.2 mm
· b: Use the cable specified for the external power source. Its size must be from 0.3 mm
2
to 1.25 mm
2
.
· Cable length
· a: Cable size is 0.3 mm
2
: 50 m or less / Cable size is 0.5 mm
2
: 100 m or less
· b: Follow the requirement for the external power source.
Note · External power source is required for the status output.
· TB530 and TB571 have polarities, so check them before connection.
· Do not connect DC power source to TB571.
12 VDC (+10 %, -0 %), 5 W or more
· Output setting
Make settings for the outputs of ON/OFF and normal/abnormal.
SW No. Dip switch Operating details
SW500
· SW500-4,5,8: OFF
ON
1 2 3 4 5 6 7 8
OFF
ON
OFF
ON
1 2 3 4 5 6 7 8
OFF