Johnson Controls YEWS Series, Installation, Operation And Maintanance Instructions

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(b) Diagram of AI Analog signal input port
AI13 AI16 AI15 AI14
VCC
AI12
AI11
AI10
AI9
AI8
AI7
AI6
AI5
AI4
AI3
AI2
+12V
VCC AI16 0V VCC AI15 0V VCC AI14 0V VCC AI13 0V
AI1
VCC
Instruction:
VCC : +5V power supply
0V : +5V power ground
+12V : +12V power supply
AI1-AI12 : Analog signal input, each port in grounded
via 10K reisitance
(c) Connection port diagram of DI open/close quantity and analog signal input
Instruction:
COM
：
Common port of DI switch input
DI1-DI12
：
DI switch input
- 12V + B A
COM DI1 DI2 DI3 DI4 DI5 DI6 DI7 DI8 DI9 DI10 DI11 DI12
COMU
COM
A,B
：
Communication interface
12V
：
Power supply interface from control panel to
outside power
AI13-AI16 : Analog signal input, reisitance of each
port in grounded can be selected by jumper wire(maked
on the control screen).
AI13-AI16(PIN) : Selection of divider resistance of
analog quantity, the detail operation methods related to
the diagram on the board.
YEWS-E Water Cooling Screw Chiller/Heat Pump
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