EN/07.2013/58/16
3. Interfaces
Two different user interfaces can be connected to the USER connector (EO3 and CO3) and it’s always possible to change
the user interface also when the board is powered. The user is auto detected by the software during the connection.
3.1. Visualization on E03 User
Note that a rotation is used to display strings with size greater than 3 digit.
Initialization mode
During initialization, the firmware version and the custom (if it’s different from zero) are displayed two times (STUTL2XX_
YY_ZZ).
Normal mode
If the system is off, “OFF” will be displayed.
If the system is in standby state, “STB” will be displayed (LED H8 and LED H9 off).
If the system is on, the value of internal temperature will be displayed.
When cooling or freecooling are switched on, LED H7 (green) will be switched on.
Pressing UP / DOWN key the following information will be displayed (Page 5, 6, 7, 8, 9, 10, 11, 12 and 13 with string
rotation):
Page 1 - Internal temperature:
“XX.X” (LED L2: OFF - LED L3: OFF)
Page 2 - External temperature:
“XX.X” (LED L2: ON - LED L3: OFF)
Page 3 - Internal relative humidity:
“XX.X” (LED L2: OFF - LED L3: ON)
Page 4 - External relative humidity:
“XX.X” (LED L2: ON - LED L3: ON)
Page 5 - Condenser fan speed:
“CF_XXX” (XXX = %)
Page 6 - Condenser pressure (M95=1) or condenser temperature (M95=0):
“PC_XXX” (XXX = bar or DIS)
“TC_XXX” (XXX = °C or DIS)
Page 7 - Compressor status:
“CP_XXX” (XXX = %, ON or OFF)
Page 8 - Evaporator fans speed:
“EF_XXX” (XXX = % or OFF)
Page 9 - Heater status:
“HT_XXX” (XXX = ON or OFF)
Page 10 - Freecooling damper status:
“FC_XXX_A” (XXX = %, OFF or DIS; A if freecooling damper is in assisted mode)
Page 11 - Evaporator temperature:
“TE_XXX” (XXX = °C or DIS)
Page 12 - Supply temperature:
“TS_XXX” (XXX = °C or DIS)
Page 13 - Firmware version and custom (if different from zero):
“STUTL2XX_YY_ZZ” (XX_YY = Firmware version; ZZ = Custom)
After 30 seconds without pressing any key, it returns to Page 1.
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