QUANTUMâ„¢ HD UNITY SYSTEM CONTROLLER
MAINTENANCE
090.670-M (APR 2020)
Page 35
TEST FUSE HERE.
IF LAMP LIGHTS
5A
5A
F7
F8
F9
F10
F3
F2
F1
F4 F5
F6 F11
F12
F13
F15
F14
F17
F16
F18
F23 F22
F21
F24
F19
F20
I/O COMMUNICATION
ACTIVITY LAMPS
MICROPROCESSOR
WATCHDOG LAMP
+12 VOLTS
-12 VOLTS
GND
-RX / -TX
+RX / +TX
BOARD DC POWER
I/O COMMUNICATIONS
U8
P7
FUSE POSITION DETERMINES
INPUT OR OUTPUT
DIGITAL I/O BOARD
Alarm Output
Vessel 1 Liquid Solenoid A
HOT
NEUTRAL
Vessel 1 Liquid Solenoid B
Vessel 1 Pump A Run
Vessel 1 Pump B Run
Vessel 1 Pump C Run
HOT
NEUTRAL
Vessel 1 High Level Shutdown (safe closed)
Compressor Running Vessel 1
P6
INPUT MODULE
INPUT MODULE
OUTPUT MODULE
OUTPUT MODULE
OUTPUT MODULE
OUTPUT MODULE
OUTPUT MODULE
OUTPUT MODULE
OUTPUT MODULE
OUTPUT MODULE
OUTPUT MODULE
OUTPUT MODULE
OUTPUT MODULE
INPUT MODULE
INPUT MODULE
INPUT MODULE
INPUT MODULE
OUTPUT MODULE
INPUT MODULE
OUTPUT MODULE
OUTPUT MODULE
INPUT MODULE
OUTPUT MODULE
OUTPUT MODULE
OUT
IN
IN
OUT
OUT
IN
OUT
IN
IN
OUT
IN
IN
OUT
IN
OUT
IN
OUT
IN
OUT
IN
OUT
INPUT MODULE
INSTALLED
FUSE
5A
FUSE
SPARE
FUSE
OUTPUT MODULE
COMMUNICATIONS JUMPERS
DIPSWITCH SETTINGS SIGNIFY
BOARD IDENTIFICATION NUMBER
J7
J8
J9
J10
Vessel 2 Liquid Solenoid A
Vessel 2 Liquid Solenoid B
HOT
NEUTRAL
Vessel 2 Pump A Run
Vessel 2 Pump B Run
Vessel 2 Pump C Run
Vessel 2 High Level Shutdown (safe closed)
HOT
NEUTRAL
Compressor Running Vessel 2
Digital Aux. Input A
Digital Aux. Input B
Vessel 3 Liquid Solenoid A
HOT
NEUTRAL
Vessel 3 Liquid Solenoid B
Vessel 3 Pump A Run
Vessel 3 Pump B Run
Vessel 3 Pump C Run
HOT
NEUTRAL
Vessel 3 High Level Shutdown (safe closed)
Compressor Running Vessel 3
Figure 21: Vessel digital board 4