- Digital Output functions -
Output
Name
Description
TA DDC TF
DO1
Operating Output
Displayed when the system starts operation (output with both thermostat ON / OFF)
✓
✓
✓
DO2
Alarm Active Digital Output During Alarm operation, Alarm Active Digital Output is active.
✓
✓
✓
DO3
Fan Motor Active
A fan control signal is output. It is usually the ON output at the time
Digital Output
of operating, but it is the OFF output in defrosting.
DO4
Defrost Mode Digital Output During Defrost operation, Defrost Mode Output is active.
✓
✓
✓
DO5
DO_1 Digital Output1
Output function set using rotary switch "SW503" on the DDC(0-10V)
(User Defined)
interface P.C board(MCC-1777)
SW503
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
Thermostat ON
7~15 Do not use
16
Under Hz upper limit regulation due to heat sink overheating
DO6
DO_2 Digital Output2
Output function set using rotary switch "SW504" on the DDC(0-10V)
(User Defined)
interface P.C board(MCC-1777)
SW504
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
Thermostat ON
7~15 Do not use
16
Under Hz upper limit regulation due to heat sink overheating
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓ :Available × : Prohibition
Locally procured
MAX. 500m
MAX. 500m
P15
Summary of Contents for RBM-A101UPVA-E
Page 21: ...P19 ...
Page 45: ...9 Cable specifications P43 ...
Page 46: ...10 Modbus setting method P44 ...
Page 50: ...12 Dx coil Controller Dx valve kit Dimensions P48 ...
Page 51: ...12 Dx coil Controller Dx valve kit Dimensions P49 ...
Page 52: ...13 Wiring Diagram P50 ...
Page 53: ...P51 ...
Page 58: ...VRF Dx coil interface Design Guideline May 2022 Third Edition DG003 03 ...