LG PAHCMR000 Installation Manual page 25

Digital Input - External Power Source (12 V DC)
Name Port
ON/OFF DI1 - DCOM
Cool/Heat DI2 - DCOM
Emer. Stop DI3 - DCOM
DI Control +12 V-DCOM
CAUTION
!
Please check the electrical specification of digital output (DO) of DDC controller whether
12 V DC or non-voltage for 'DI Control'. According to the electrical spec. of DO of DDC
controller, 'DI Control' should be set. If the wrong setting is made, DI does not work
properly.
n Digital Output (Relay C contact)
Name Port
Alarm DO1
n Digital Output
Name Port
ON/OFF DO2
Defrost DO3 Defrost Normal
Comp. Status DO4
Reserved DO5
Reserved DO6
DISCHARGE AIR TEMPERATURE CONTROL (PAHCMS000)
Value
Short Open
ON
Heating Cooling
Emergency
Normal
Stop
Internal Power External Power
Source Source
Value Electrical Spec.
- Normal Status
A B COM
30 V DC / 1 A
- Error Status
250 V AC / 1 A
A B COM
Value
Electrical Spec.
Short Open
ON OFF
250 V AC / 1 A
ON OFF
30 V DC / 1 A
- -
- -
*DI is available when DIP SW1-1 is OFF
Electrical Spec.
OFF 12 V DC 10 mA Operation ON/OFF
12 V DC 10 mA Operation Mode
12 V DC 10 mA
Non voltage
Output normal or error status
(Relay C Contact)
- A Contact
Normal status : open
Error status : short
- B Contact
Normal status : short
Error status : open
Operation ON/OFF status
ODU Defrost status
Compressor operation ON/OFF status
Function
Emergency Stop Input (Priority
operation)
Use external power source for DI
+12 V-DCOM should be "Open"
Function
Function
-
-
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