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ENG
ir33plus +0300028EN rel. 1.1 - 05.05.2017
12 = Auxiliary output
Set H1 and/or H5 = 2 to activate the auxiliary output.
See the table at the start of this paragraph for details on the activation/
deactivation logic.
13 = Door switch with compressor and fan o , light not managed
Operation is similar to A4=5, with the di erence that the light output is
not modi ed.
Note: the light management algorithm depends on parameter Ado
– “Light management with door switch” (masked parameter accessible
from VPM).
Ado Light when ope-
ning the door
Algorithm Description
0o normal open-close
on extended open-close-open-close
1o extended open-close-open-close
on normal open-close
Tab. 5.j
If the digital input is selected to not manage the light (A4, A5, A9 =13 or
14), the algorithm is modi ed as follows:
Ado Light when ope-
ning the door
Algorithm Description
0o normal open-close
on extended open-close-open-close
1o normal open-close
on normal open-close
Tab. 5.k
See the table at the start of this paragraph for details on the activation/
deactivation logic.
14 = Door switch with fan o only, light not managed
Operation is similar to A4=9, with the di erence that the light output is
not modi ed.
Note: the light management algorithm depends on parameter Ado,
as shown in the previous table.
See the table at the start of this paragraph for details on the activation/
deactivation logic.
5.3 Digital outputs
The parameters in question concern the minimum on or o times of the
same output or di erent outputs, so as to protect the loads and avoid
swings in control.
Important: for the times set to become immediately operational,
the controller needs to be switched o and on again. Otherwise, the
timers will become operational when the controller is next used, when
the internal timer is set.
Relay output protectors (parameters c7,c8,c9)
Par. Description Def Min Max UOM
c0 Compressor, fan and AUX start delay at power
on
0 0 15 min
c1 Minimum time between successive compres-
sor starts
0 0 15 min
c2 Minimum compressor o time 0 0 15 min
c3 Minimum compressor on time 0 0 15 min
Tab. 5.l
• c0: when the controller is powered on, the compressor, evaporator
fans and auxiliary relay in neutral zone control (‘H1’=11 or ‘H5’=11)
are started after a delay (in minutes) equal to the value assigned to
this parameter. The delay is used to protect the compressor against
repeated starts in the event of frequent power failures;
• c1 de nes the minimum time between two consecutive starts of the
compressor;
• c2 de nes the minimum compressor o time;
• c3 de nes the minimum compressor on time;
Other relay output protectors (parameter c11)
Par. Description Def Min Max UOM
c11 Second compressor start delay 4 0 250 s
Tab. 5.m
• c11 de nes the activation delay between the rst and second
compressor (or between the rst and the second compressor step).
c1
ON
OFF
ON
OFF
t
STEP1
STEP2
c3 c2
c11
c0
POWER_ON
Fig. 5.h
Key
Step1 Compressor step 1
Step2 Compressor step 2
t time
Functions assigned to AUX1/AUX2
Outputs AUX1 and AUX2 can be assigned di erent functions, such as
alarm signal, auxiliary output, light output, pump down valve, condenser
fan, reverse output with neutral zone, second compressor, second
compressor with rotation. For details, see the chapter on control.
Par. Description Def Min Max UOM
H1 AUX1 output con guration 1 0 13 -
0 = normally energised alarm
1 = normally de-energised alarm
2 = auxiliary
3 = light
4 = auxiliary evaporator defrost
5 = pump down valve
6 = condenser fan
7 = delayed compressor
8 = auxiliary with deactivation when OFF
9 = light with deactivation when OFF
10 = no function
11 = reverse with neutral zone
12 = second compressor step
13 = second compressor step with rotation
H5 AUX2 output con guration
See H1
3 0 13 -
Tab. 5.n
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