18
3.0 Indicators
3.1 User
LED
1.
User LEDs provide an indication of the condition of the humidifier.
2.
During the initialisation process the User LEDs can be in one of the following states,
User LED State
Description
RED Flashing
2 second period
Unit initialising. If remains in this state, then unit does not a valid UCP1 fitted.
RED/AMBER Flashing
2 second period
UCP1 valid.
For units fitted with a display, the unit requires factory set-up (Number of
Electrodes and Number of Turns)
For units fitted with a configuration board, the UCP2 and/or UCP3 are not being
detected.
RED/GREEN Flashing
2 second period
UCP1 valid.
For units fitted with a display, the unit requires site set-up.
This state does not occur if the unit is fitted with a configuration board.
User LED 1 -
RED/AMBER/GREEN
User LED 2 – OFF
Unit in configuration set-up mode, as instructed from the attached display node.
User LED 1 & LED 2 -
RED/AMBER/GREEN
Invalid configuration. The combination of UCP1 and the number of turns is not
valid.
3.
Once initialisation has completed User LED 1 refers to cylinder 1, while User LED 2 refers to Cylinder 2. For combinations of
LED 1 and LED 2 being off, RED or RED Flashing refer to following table.
User LED 1
User LED 2
Description
OFF
OFF
Cylinder 1 and Cylinder 2 in shutdown.
Or
Cylinder 1 in standby and Cylinder 2 in shutdown.
OFF RED
Flashing
1 second
period
Cylinder 1 and Cylinder 2 in standby
Green Amber
Flashing
Red Flashing
Both red and
green/Amber
LED flash at
Variable
Period or on
as per table
Green Amber
Flashing
Red Flashing
Both red and
green/Amber
LED flash at
Variable
Period or on
as per table
Cylinder 1 Startup. Cylinder 2 Startup.
Cylinder 1 Online. Cylinder 2 Online. ( LEC mode OPERATING)
The variable period is determined by the demand signal for cylinder 1 as follows,
Cylinder 1 demand
LED ON LED OFF
<12.5%
0.5
seconds
3.5
seconds
<25%
1.0
seconds
3.0
seconds
<37.5%
1.5
seconds
2.5
seconds
<50%
2.0
seconds
2.0
seconds
<62.5%
2.5
seconds
1.5
seconds
<75%
3.0
seconds
1.0
seconds
<87.5%
3.5
seconds
0.5
seconds
>=87.5%
ON RED Continually
4.
For all other LED sequences refer to the following table,
User LED State
Description
AMBER Drain
Fault
AMBER Flashing
1 second period
Over current Fault
AMBER Flashing
2 second period
Feed Fault
GREEN Flashing
1 second period
Service Interval expired or low output.
GREEN Flashing
2 second period
Periodic Flush/Periodic Drain/Manual Drain/Auto Flush in progress
GREEN
Periodic Drain/Periodic Flush/Manual Drain completed.
RED/AMBER
1 second period
Constant Output Active/Full Output via UCP3 (Master cylinder only)
AMBER/OFF/AMBER/OFF/GREEN/OFF
No Voltage input
