Daikin EWWQ-AJYNN Service Manual page 23

Water-cooled screw chillers
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The Digital Controller
1.4.4
Meaning of the Driver EEXV Status LEDs
1
Normal conditions
2
Alarm situations
3
Alarms that stop the system
Eprom reading error
Valve open in case of lack of
4
supply
At start up, wait for battery
loading (parameter..........)
Other alarms
Motor connection error
5
Probe error
Eeprom writing error
Battery error
pLAN
Connection OK
Driver connection or address error = 0
The Pco Master does not answer
2–12
Under normal conditions five(5) LED indicates:
POWER: (yellow) remains On in presence of supply. Remains Off in case of battery operation
OPEN: (green) Flashing during the valve opening. On when valve is fully open.
CLOSE: (green) Flashing during the valve closing. On when valve is fully close.
Alarm: (red) On or flashing in case of hardware alarm.
pLAN: (green) On during the normal working of pLAN.
In presence of critical alarm situations, the combination of the LED's will identify the alarm as shown
below. In case more than one alarm is present, the alarm with the highest priority will be visualized.
Highest priority is level 7.
PRIORITY
7
6
5
PRIORITY
4
3
2
1
LED OPEN
LED CLOSE
Off
Off
Flashing
Flashing
Off
On
LED OPEN
LED CLOSE
Flashing
Flashing
Off
Flashing
-
-
-
-
LED pLAN
On
Off
Flashing
ESIE07-05
LED POWER
LED ALARM
On
Flashing
On
Flashing
Flashing
Flashing
LED POWER
LED ERROR
On
On
On
On
On
On
Flashing
On
Part 2 – Functional Description

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