Daikin EWAD120MBYNN1 Operation Manual page 15

Tasks of the safeties menu
Listing activated safeties and checking the unit status
If the alarm buzzer is activated and the user presses the p key, the
controller automatically enters the safeties menu.
The controller will enter the
menu when a unit safety was the cause of shutdown.
The controller will enter the
the safeties menu when a safety of the circuit 1/2 was activated.
For a DICN system, the controller can also show:
number of slave units is defined (refer to
settings" on page 12) or when a slave unit is missing (because
of bad connection or power supply failure).
Make sure to define the correct number of slave units and to
make correct connections.
You can check the "found" slave units in the 2nd
NOTE
screen of the network menu.
When the unit is configured with a dual evaporator pump, the
controller will enter the
safeties menu when a safety on the pump was the cause of
shutdown.
1 Press the p key when the alarm buzzer is activated.
The appropriate safety screen with the basic information
appears. Press the q key to see the detailed information. These
screens provide information about the unit status at the moment
of shutdown (see "Safeties menu" on page
2 If more than one kind of safety is active (indicated by means of
W, X or C), use the g and h keys to consult them.
Tasks of the history menu
Checking the safety info and the unit status after a reset
The information available in the safeties menu is also stored in the
history menu, where it is stored after resetting the unit or the circuit.
In this way, the history menu provides a means of checking the unit
status at the moment of the latest shutdown.
To check the safety info and the unit status, proceed as follows:
1 Enter the
menu" on page 6.)
The controller enters the last
basic information of the moment of this shutdown.
2 Press the g and h keys to consult the other present
screens.
3 Press the q key to see the detailed information.
Tasks of the info menu
Consulting additional unit information
1 Enter the
chapter "How to enter a menu" on page
The controller enters the
contains the following information: the time and date.
2 Press h to consult the first
This screen contains information about the unit name and the
refrigerant used.
3 Press h to consult the next
This screen contains information about the controller's software
version.
4 Press h to consult the
This screen contains information about the PCB.
EWAD120~340MBYNN
Packaged air-cooled water chillers
4PW22683-1
screen of the safeties
. This occurs when the wrong
"Defining the network
screen of the
10).
. (Refer to the chapter "How to enter a
screen which contains
through the main menu. (Refer to the
6).
screen which
screen.
screen.
screen.
Tasks of the input/output menu
Checking the status of the inputs and outputs
The input/output menu provides a means of checking the status of
the digital inputs and the status of the relay outputs.
The locked digital inputs are:
screen of
pressed.
deactivated.
safety of circuit 1/2.
this safety of circuit 1/2.
circuit 1/2.
circuit 1, circuit 2.
status of this safety of circuit 1/2.
The changeable digital inputs are:
capacity limitation" switches.
setpoint switch: setpoint 1 or setpoint 2.
: indicates the position of the connected switch.
The locked relay outputs are:
starmode or not.
deltamode or not.
is activated.
the circuit 1/2 is activated.
motor of the circuit 1/2 is activated.
of the circuit 1/2 (Ω).
circuit 1/2 are on or not.
circuit 1/2 are on or not.
circuit 1/2 are on or not.
is activated if the pump should be ON.
is activated if there is any alarm on the unit.
The changeable relay outputs are:
pump.
when the unit is in free cooling state.
digital output.
: whether the emergency button has been
: indicates the status of the flowswitch: activated or
/ : indicates the actual status of this
/ : indicates the actual status of
/ : indicates the actual status of this safety of
,
: indicates the actual status of this safety of
/ : indicates the actual
: indicates the position of the "enable/disable
: indicates the position of the remote dual
: indicates the position of the remote on/off switch.
: indicates whether the circuit 1/2 is on or off.
: indicates whether the circuit 1/2 is in
: indicates whether the circuit 1/2 is in
: indicates if the 12% capacity valve of the circuit 1/2
: indicates if the UP of the capacity control motor of
: indicates if the DWN of the capacity control
: indicates the FEEDBACK of the potentiometer
: indicates if the fans of fanstep 1 for the
: indicates if the fans of fanstep 2 for the
: indicates if the fans of fanstep 3 for the
: indicates the status of this voltage free contact. It
: indicates the status of this voltage free contact. It
: indicates the status of the evaporator heater.
: indicates the status of the second evaporator
: indicates when the unit is working at 100%.
: indicates the status of the 3-way water valve
: indicates the closed status of the changeable
Operation manual
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