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Page 2
– Bulletin 100-50-6.4
2 USER INTERFACE
2.1 Introductory comments
The device has the following operational states:
• “on” (power is connected and the controller is on: the regulators
may be switched on)
• “stand-by” (power is connected but software sets the controller to
off: the regulators are switched off; the option of manually switch-
ing on/off the cabinet light or the auxiliary output depends on
parameter u2).
The term “turning on” is understood to mean switching from the
stand-by state to on; the term “turning off” is understood to mean
switching from the on state to the stand-by state.
When the controller is turned on, it restores the state it was in when
power was interrupted.
2.2 Manual switching on/off of the controller
• make sure the keyboard is not locked and no procedure is running
• press and hold for 4 seconds.
It is also possible to turn the controller on/off using the multifunction
input.
2.3 The display
If the controller is turned on, during normal operation the display
will show the quantity you have set with parameter P5.
While in stand-by mode the display is turned off.
2.4 Showing the temperature read by the probes
• make sure the keyboard is not locked and no procedure is running
• press and hold
for 2 seconds: the display will show the first
available label
• press
or
to select “
Pb1” (cabinet probe), “Pb2” (evaporator
probe), or “
Pb3” (auxiliary probe)
• press
To quit the procedure:
• press
or do not press any other buttons for 60 seconds
• press
or
as long as the display shows the quantity you have
set with parameter P5 or do not press any other buttons for 60
seconds.
Alternatively:
• press
If there is no evaporator probe (parameter P3 = 0), label “
Pb2” will
not be shown.
If the function of the fourth input is not for an auxiliary probe (pa-
rameter P4 = 0 or 3), then label “
Pb3” will not be shown.
2.5 Manually activating defrost
• make sure the keyboard is not locked and no procedure is running
• press and hold
for 4 seconds.
If the function of the evaporator probe is set for a defrost probe
(parameter P3 = 1) and the evaporator temperature is above that
established by parameter d2, then defrost will not be activated.
2.6 Manually turning on/off the cabinet light
(only if parameter u1 is set to 0)
• make sure no procedures are running
• press
It is also possible to turn the cabinet light on/off remotely using the
microport and multifunction inputs; see also parameter u2.
2.7 Manually turning on the anti-sweat heater
(only if parameter u1 is set to 1)
• make sure the controller is turned on and no procedures are running
• press
for 2 seconds: the anti-sweat heater will be turned on for
the period of time established by parameter u6.
Manually turning off of the anti-sweat heater is not permitted.
2.8 Manually turning on/off the auxiliary output
(only if parameter u1 is set to 2)
• make sure the keyboard is not locked and no procedure is running
• press
It is also possible to turn the auxiliary output on/off using the multi-
function input.
The auxiliary output can be turned off manually by the same process
in section 2.8, only if it was turned on manually (the same applies for
remotely turning on the auxiliary output); see also parameter u2.
2.9 Locking/unlocking the keyboard
To lock the keyboard:
• make sure no procedures are running
• press and hold
and
for 2 seconds: the display will show
“
Loc” for 1 second.
If the keyboard is locked, it will not be possible to:
• manually turn the device on/off
• show the temperature read by the cabinet probe, evaporator probe,
or auxiliary probe (using the procedure indicated in paragraph 2.4)
• manually activate defrost
• manually turn the auxiliary output on/off
• view information pertaining to the HACCP alarms
• delete the HACCP alarm list
• change the operational setpoint using the procedure indicated in
paragraph 3.1
• display the total hours of compressor operation
• delete the total hours of compressor operation.
These operations will cause the label “
Loc” to be displayed for 1
second.
To unlock the keyboard:
• press and hold
and
for 2 seconds: the display will show
“
UnL” for 1 second.
3 SETTINGS
3.1 Setting the working setpoint
• make sure the keyboard is not locked and no procedure is running
• press
: LED will flash
• press
or
within 15 seconds; also see parameters r1, r2 and r3
• press
or do not press any other button for 15 seconds.
You also can modify the working setpoint through parameter SP.
3.2 Setting the configuration parameters
To gain access to the procedure:
• make sure no procedures are running
• press and hold
and
for 4 seconds: the display will show “
PA”
• press
• press
or
within 15 seconds to set the display to “
-19”
• press
or do not press any other button for 15 seconds