QUANTUM™ HD UNITY SYSTEM CONTROLLER
MAINTENANCE
090.670-M (APR 2020)
Page 2
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious
injury.
Indicates a potentially hazardous situation or practice which, if not avoided, will result in death or
serious injury.
Safety Precaution Definitions
Indicates a potentially hazardous situation or practice which, if not avoided, will result in damage
to equipment and/or minor injury.
Indicates an operating procedure, practice, etc., or portion thereof which is essential to highlight.
WARNING
CAUTION
DANGER
NOTICE
Table Of Contents
General information .......................................................... 6
Controller ................................................................... 6
Components ............................................................. 6
Basic troubleshooting ............................................... 6
What to do before calling the factory ....................... 7
System Controller Drawings ....................................... 7
Section 2 - Q5 Processor and Interface Board
Q5 Processor Board ........................................................ 12
Preface ....................................................................... 12
Features ..................................................................... 12
Power Up Sequence ................................................... 12
Troubleshooting .......................................................... 12
Battery Function ......................................................... 13
Battery Replacement .................................................. 13
Q5 Interface Board ..................................................... 13
Q5 Processor Board Jumpers, LEDs, and Connectors . 15
Interconnections ......................................................... 17
Power Supplies ........................................................... 18
Section 3 - Q6 Processor and Interface Board
Preface ....................................................................... 20
Features ..................................................................... 20
Power up Sequence.................................................... 20
Troubleshooting .......................................................... 20
Battery Function ......................................................... 20
Battery Replacement .................................................. 21
Q6 Processor Board Jumpers, LEDs, and Connectors . 23
Reset IP Address to Default ........................................ 24
Digital Board ................................................................... 28
Logic voltage (power) LED ...................................... 28
Active LED .................................................................. 28
Digital Inputs .............................................................. 28
Digital Outputs ........................................................... 29
Checking the Digital Inputs and Outputs ..................... 29
Fuse Testing and Replacement ................................... 29
Input and Output Module Testing and Replacement ... 29
Troubleshooting an Output ......................................... 30
Troubleshooting an Input ............................................ 30
Replacing a Defective Digital Board ............................ 30
Diagrams ......................................................................... 31
Digital Board Settings ................................................. 39
Analog Board .................................................................. 42
Analog Board Settings ................................................ 49
Service – Diagnostics ................................................. 52
Service – Communications ......................................... 53
Service – Software – Saving setpoints ....................... 54
Service – Software – Restoring setpoints .................. 55
Service – Software – Deleting setpoints .................... 56
Service – Software – Upgrade software..................... 57
Service – Software – Touchscreen calibration ........... 58
Additional maintenance page – About ....................... 58
Troubleshooting .......................................................... 59
Replacement parts list ................................................ 61