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ACCESSORIES INSTALLATION
Digital Input for energy saving (ESS, Smart Grid)
This product provides two digital inputs (TB_SG:ES1/ES2) that can be used to switch between
energy states when not using Modbus RTU (CN-COM).
Available Energy States
There are 8 energy states available in total. Four different states can be triggered using the
230V-inputs – by default Energy states 1-4.
With the digital input assignment in the menu ‘Energy state/Digital input assignment of the
control panel, different Energy states can be selected for Signals 0:1 and 1:1.
0:0 is always linked with ES2 (Normal operation) and 1:0 is always linked with ES1 (Operation
off/Utility lock).
How to set Digital input signal
Follow below procedures step 1 ~ step 3.
Step 1. Check if the power of the unit is turned off.
Step 2. Disassemble front panels and distinguish terminal block in Indoor PCB.
Step 3. Connect signal cable to terminal block in PCB (ES2, ES1) fully as shown below.
ES2 ES1
TB_SG
Indoor PCB
Energy state depending on input signal (ES1 / ES2)
Input Signal Output state
ES1 ES2 Default Range
0 0 Energy state 2
fixed
1 0 Energy state 1
0 1 Energy state 3
Energy state 3 ~ Energy state 8
1 1 Energy state 4
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