Daikin EWAP460MBYN [15/22] Checking the safety info and the unit status after a reset

Daikin EWAP460MBYN [15/22] Checking the safety info and the unit status after a reset
EWAP400~540MBYNN
Packaged air-cooled water chillers
4PW22679-1B
Operation manual
14
To check the actual value of the software timers, proceed as follows:
1 Enter the
 
. (Refer to the chapter "How to enter a
menu" on page 6.)
The controller displays the actual value of the


: the loadup timer, the loaddown timer, the flowstart
timer, the flowstop timer (when the unit is on and the flowstart
timer has reached zero) and the starttimer.
2 Press the h key to check the compressor timers.
The controller shows the actual value of the


: the guard timers (one per circuit) and the antirecycling
timers (one per circuit).
3 Press the h key to check the remaining timers.
The controller shows the actual value of the
 
.
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
 
screen of the safeties
menu when a unit safety was the cause of shutdown. This
screen provides the following information:
The controller will enter the
 
or
  
screen of the safeties menu when a safety of circuit 1,
respectively circuit 2 was activated. These screens provide
information about the circuit status at the moment of shutdown.
For a DICN system, the controller can also show:

  & 
. This occurs when the wrong
number of slave units is defined (refer to "Defining the network
settings" on page 13) 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.
When the unit is configured with a dual evaporator pump, the
controller will enter the
  
screen of 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.
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
 
. (Refer to the chapter "How to enter a
menu" on page 6.)
The controller enters the last

screen which contains
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
 
through the main menu. (Refer to the
chapter "How to enter a menu" on page 6).
The controller enters the
 
screen which
contains the following information: the time and date.
2 Press h to consult the first
 
screen.
This screen contains information about the unit name and the
refrigerant used.
3 Press h to consult the next
 
screen.
This screen contains information about the controller's software
version.
4 Press h to consult the
 
screen.
This screen contains information about the PCB.
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:
 
: whether the emergency button has been
pressed.

: indicates the status of the flowswitch: activated or
de-activated.
   
: indicates the actual status of
this safety.
   
: indicates the actual status
of this safety.
 
: indicates the actual status of this safety.
   
: indicates the actual
status of this safety.
   
: indicates the actual
status of this safety.
The changeable digital inputs are:
  "#
: indicates the position of the "enable/disable
capacity limitation" switch.
 
: indicates the position of the remote dual
setpoint switch: setpoint 1 or setpoint 2.
& 
: indicates the position of the remote on/off switch.

: indicates the position of the connected switch.
The locked relay outputs are:
  
: indicates whether circuit 1/2 is on/off.
  
: indicates whether circuit 1/2 is in
starmode or not.
  
: indicates whether circuit 1/2 is in
deltamode or not.
 *
: indicates if the 12% capacity valve of circuit 1/2 is
activated.
 
: indicates if the

of the capacity control motor of
the circuit is activated.
 
: indicates if the

of the capacity control motor
of the circuit is activated.
 
: indicates the

of the potentiometer
of the circuit ().
  
:
indicates if the fans of fanstep 1 for circuit 1/2
are on or not.
  
:
indicates if the fans of fanstep 2 for circuit 1/2
are on or not.
  "
:
indicates if the fans of fanstep 3 for circuit 1/2
are on or not.
NOTE
You can check the "found" slave units in the 2nd screen
of the network menu.

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