DOC
NUMBER
595R495
77
SERVICE MANUAL Blast Chiller Freezer 100 - 200
4.2.1 Functinality
The UI of the touchscreen appliances is supplied from the ACU connector X27 into contact J7/4.
If the user interface (user board) cannot comunicate with any other board for more than a determinated time (ex
15") any running cycle will be stopped. The error icon will show a message "ECom". No cycle can be launched
till the comunication is established again.
DISPLAY BOARD= connects to the U.I on J18 / J20 / J21
USER BOARD (U.I)= connects to the O/I board J1 to X21 / J7 connects to the ACU X27. J15 is the usb cable
O/I ON OFF BOARD (SM)= connects into the EWD and supplys the KSM (on of relay) when turned ON
CONNECTOR
FUNCTION
NOTES
BT1
BATTERY CR2032
DATE / TIME MEMORY
J1
ON / OFF
12V AND 0/1 SWITCH STATE
J5
U9 CONTROL
NOT USED / EMPTY
J7
PMACS
CONNECTION TO ACU (POWER BOARD) X27 .
PINS= J7-1= RS485 J7-2= RS485 J7-3= GND J7-4=+12V J7-5= GND
J8
PMACS
*see note
J11
ETHERNET
NOT USED / EMPTY
J14
NIU
FOR WIFI ANTENNA
J15
USB
USB PORT ON DISPLAY
J16
DEBUG
NOT USED / EMPTY
J18
LCD DISPLAY
FLAT CABLE
J20
LCD BACK LIGHT
CABLE
J21
TOUCH RESISTIVE
TOUCH SENSING
J22
SPEAKER
CABLE
J24
ADDRESS
NOT USED / EMPTY
J25
MICRO SD
MEMORY
TBD
U29
CORE BOARD
CPU
X21
COMUNICATION CABLE
12V AND 0/1 SWITCH STATE
X19
PHASE 230V IN
RECOVERY
CONNECTION TO ACU (POWER BOARD)
X28
* Note
: the J7/ PMACS can be connected to any X27 connection of the ACU. J7 vs J8 are interchangeable.
X21 & X19 are the numberings of the ON/OFF board, but also the ACU has the same numberings!!
Содержание SKCH 100
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