The specifications of Terminal DO1 to DO6
The specifications of Terminal DO1 to DO6 are as follows.
• Use the contact side of the relay terminal used in TCB-IFDMR01UP-UL according to the specifications shown in
the table below.
Relay model name Contact rating Load conditions
G2RV-SR700-12DC
250 V max / 3 A max
(Minimum Current: 10 mA more)
Resistive load
Function of each terminal blocks
Terminal DO1 / DO1: Operating Output (DC12 V)
• The output is displayed when the system starts operation (output when the thermostat is on / off).
Terminal DO2 / DO2: Alarm Active Digital Output (DC12 V)
• During Alarm operation, Alarm Active Digital Output is active.
Terminal DO3 / DO3: Fan Motor Active Digital Output (DC12 V)
• A fan control signal is output. It is usually the ON output at the time of operating, but it is the OFF output in defrosting.
Terminal DO4 / DO4: Defrost Mode Digital Output (DC12 V)
• During Defrost operation, Defrost Mode Output is active.
Terminal DO5 / DO5: Digital Output 1 (DC12 V)
DO6 / DO6: Digital Output 2 (DC12 V)
• Output function selected using rotary switches SW503 (DO5 / DO5) & SW504 (DO6 / DO6).
Set with the SW503 or SW504 switch on the control P.C. board MCC-1777.
SW503, 504 Position Output Function
1
Outdoor unit(s) operation level is lower than capacity command
2
Outdoor unit(s) operation level is higher than capacity command
3
Cooling oil recovery / Heating refrigerant recovery control
4
Cooling operation output
5
Heating operation output
6
The suction air temperature (TA) is in the thermostat OFF range (only TF type)
7 - 15
Do not use
16
Under restriction of compressor speed due to heat sink overheating in outdoor unit (s)
SW503
SW504
DO1 - DO6
DO1 - DO6
MAX. 1640'5" (500 m)
Locally procured
11
14
TCB-IFDMR01UP-UL
(Terminal block with relay)
To Next Page
Loading...
