Mitsubishi Electric MAC-333IF-E, Technical Manual

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MAC-333IF-E
(5) Relay outputs of heater control signal and humidifier control signal
· Output change
Change the output logic.
SW No. Dip switch Operating details
SW502
· OFF:
· It behaves as described in the “Behavior” section in this chart.
· ON:
· Relay 1
· Relay 1 is OFF when the conditions to operate the external heater are satisfied.
· Relay 1 is ON when the conditions to stop the external heater are satisfied.
· Relay 2
· Relay 2 is OFF when the conditions to operate the external humidifier are satisfied.
· Relay 2 is ON when the conditions to stop the external humidifier are satisfied.
· Output setting
Make settings for the output control signals of the heater and the humidifier.
SW No. Dip switch Operating details
SW500
· SW500-4,5: ON
· SW500-8: OFF
· 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.
· When a relay with a built-in diode is used, take care to choose the correct polarity.
TB571 C: + potential
TB571 R1 and R2: - potential
· Cable type
· a: Sheathed cable (Stranded cable) size 0.3 mm 2 to 1.25 mm 2 / Sheathed cable (Solid cable) size 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.
Control (ON/OFF) signal of the external heater and the external humidifier can be output to the relay.
· Relay 1
· Relay 1 is ON when the conditions to operate the external heater are satisfied. Relay1 remains ON until the conditions for OFF
are satisfied. (Conditions to operate the heater: The air conditioner is operating in the heating or the automatic heating mode, and the
room temperature is 2.5 °C (4.5 °F) or less below the set temperature.)
· Relay 1 is OFF when the conditions to stop the external heater are satisfied. (Conditions to stop the heater: The air conditioner is not
operating or it is operating in a mode other than the heating or the automatic heating mode, or the room temperature is higher than the
set temperature.)
· Relay 2
· Relay 2 is ON when the conditions to operate the external humidifier are satisfied.
(Conditions to operate the humidifier: The air conditioner is operating in the heating or the automatic heating mode.)
· Relay 2 is OFF when the conditions to stop the external humidifier are satisfied.
(Conditions to stop the humidifier: The air conditioner is not operating or it is operating in a mode other than the heating or the
automatic heating mode.)
ON
1 2 3 4 5 6 7 8
OFF
ON
OFF
ON
1 2 3 4 5 6 7 8
OFF
Function
summary
System
configuration
MAC333IF-E
C
R1
TB571
R2
TB530
DC power
source
12 V
DC power source
12 VDC (+10 %, -0 %), 5 W or more
a
b
SYSTEM CONTROL interface
* External power source is required for the status output and the control signal output.
Behavior
Switch setting
Specifications
of communication
cable
Note
Relay 1, 2
Coil rating: 12 VDC, 75 mA or less
Relay 1
Relay 2