Daikin EWWQ-G - Basic Control System Diagnostic

EWWQ090G ÷ EWWQ720L - R410A - Water-cooled scroll chillers
EWLQ090G ÷ EWLQ720L - R410A - Condenser less
EWHQ100G ÷ EWHQ400G - R410A - Heat pump scroll chillers
EWAQ-G 075 - R410A - Air-cooled scroll chillers
EWAQ- - R410A - Air-cooled scroll chillers
EWYQ- - R410A - Air-cooled scroll heat pumps
Air and Water cooled scroll chillers & heat pump
Operation
Manual
Operation Manual
20
EWWQ - EWLQ - EWHQ
EWAQ - EWYQ
Air or Water cooled scroll chiller &
heat pump
D-EOMHW00107-15EN
3.5 Basic Control System Diagnostic
Unit controller, extension modules and communication modules are equipped with two status LED
(BSP and BUS) to indicate the operational status of the devices. The BUS LED indicates the status
of the communication with the controller. The meaning of the two status LED is indicated below.
UC BSP LED
BSP LED
Mode
Solid Green
Application running
Solid Yellow
Application loaded but not running (*) or BSP Upgrade mode active
Solid Red
Hardware Error (*)
Flashing Green
BSP startup phase. The controller needs time for starting.
Flashing Yellow
Application not loaded (*)
Flashing Yellow/Red
Fail safe mode (in case that the BSP upgrade was interrupted)
Flashing Red
BSP Error (software error*)
Flashing Red/Green
Application/BSP update or inizialization
(*) Contact Service.
Extension modules
BSP LED
BSP LED
Mode
Solid Green
BSP running
Solid Red
Hardware Error (*)
Flashing Red
BSP Error (*)
Flashing Red/Green
BSP upgrade mode
BUS LED
BUS LED
Mode
Solid Green
Communication running, I/O working
Solid Yellow
Communication running but parameter from the application wrong or missing, or uncorrect factory calibration
Solid Red
Communication down (*)
Communication modules
BSP LED (same for all modules)
BSP LED
Mode
Solid Green
BPS running, communication with controller
Solid Yellow
BSP running, no communication with controller (*)
Solid Red
Hardware Error (*)
Flashing Red
BSP Error (*)
Flashing Red/Green
Application/BSP update
(*) Contact Service.
LON module BUS LED
BUS LED
Mode
Solid Green
Ready for Communication. (All Parameter loaded, Neuron configured). Doesn't indicate a communication
with other devices.
Solid Yellow
Startup
Solid Red
No Communication to Neuron (internal error, could be solved by downloading a new LON application)
Flashing
Yellow
Communication not possible to the Neuron. The Neuron must be configured and set online over the LON
Tool.
Bacnet MSTP BUS LED
BUS LED
Mode
Solid Green
Ready for Communication. The BACnet Server is started. It doesn't indicate a active communication
Solid Yellow
Startup
Solid Red
BACnet Server down. Automatically a restart after 3 seconds are initiated.