Controller functions
Version 1
RES-401
Page 19
In addition to the functions shown in the diagram above, various controller operating states are indicated by the
LEDs. These states are described in detail in the table below:
As of October 2005:
Up to September 2005:
LED
Blinks slowly (1Hz)
Blinks fast (4Hz)
Lit continuously
AUTOCAL
(yellow)
RESET active,
START and AUTOCAL
functions are locked
AUTOCAL requested, but
function disabled
AUTOCAL executing
HEAT
(yellow)
—
START requested,
but function disabled
START executing
OUTPUT
(green)
In control mode the luminous intensity is proportional to the heating current.
ALARM
(red)
Configuration error,
AUTOCAL not possible
Controller calibrated incor-
rectly, run AUTOCAL
Fault,
section 6.8
LED
Meaning
Function
Blinks/lits green
In control mode the luminous intensity is proportional
to the heating current.
Measure/Control
mode
Blinks red/green alternately
AUTOCAL executing
AUTOCAL
Lit red for 1s
AUTOCAL requested, but function disabled
Blinks red slowly (1Hz)
Configuration error, AUTOCAL not possible
ALARM
Blinks red fast (4Hz)
Controller calibrated incorrectly, run AUTOCAL
Lit red continuously
Fault, check controller configuration and installation