40
ENG
Hecu CO
2
+0300085EN rel. 2.2 - 07.05.2019
Par Description Cat. Def Min Max UOM
A3 Disable door switch
0=enabled
1=disabled
doL 1 0 1 -
tLi Light off delay doL 120 0 240 min
A4 Light management
0 = door switch + light button
1 = light button
doL 0 0 1 -
Tab. 7.j
H0: Serial address
Parameter H0 indicates the UltraCella serial address.
Par. Description Def Min Max UOM
H0 Serial address 199 0 199 -
Tab. 7.k
The addresses must obey the following logic:
Device Address
UltraCella 1 11
UltraCella 2 12
UltraCella 3 13
UltraCella 4 14
UltraCella 5 15
While the other parameters that select the protocol are:
• H7 = 0 Carel protocol
• H7 = 1 Modbus protocol
H7 must be = 1, while the other parameters retain the default settings,
and are:
Par. Description Def Min Max UOM
H10 BMS baud rate bit/s
0 1200 5 38400
1 2400 6 57600
2 4800 7 76800
3 9600 8 115200
4 19200 9 375000
40 9 -
H11 Number of BMS stop bits
1 1 stop bit
2 2 stop bit
21 2 -
H12 BMS parity
0 none
1 odd
2even
00 2 -
Note: To make the change active, the unit must be switched off and
on again.
Cold room temperature control
Cold room temperature is managed by modulating the electronic
expansion valve.
Probe con guration
The UltraCella controllers have a maximum of fi ve analogue inputs, three
of which can be confi gured as temperature probes (NTC probes, high
temperature NTC probes, PT1000), the fourth as a temperature probe
or 0-10 V input, the fi fth can be confi gured as a 4-20 mA or 0-5 Vrat input.
Analogue inputs Type
B1
B2
B3
NTC10 kΩ at 25°C, range -50T90°C,
NTC extended range, NTC50 kΩ at 25°C, range 0T150°C;
PT1000, 1000 Ω at 0°C, range -50T90°C
B4 NTC10 kΩ at 25°C, range -50T90°C,
NTC extended range, NTC50 kΩ at 25°C, range 0T150°C
0 to 10 V
B5 4 to 20 mA
0 to 5 Vrat
0.5 to 4.5 Vrat
Tab. 7.l
The parameter settings are listed below.
Par. Description Def Min Max UOM
/P Type B1…B3
0 = NTC Standard Range -50T90°C
1 = NTC Enhanced Range 0T150°C
2 = PT1000
002-
/P4 Type B4
0 = NTC Standard Range -50T90°C
1 = NTC Enhanced Range 0T150°C
2 = 0 to 10 V
002-
/P5 Type B5
0 = 4 to 20 mA
1 = 0 to 5 Vrat
2= 0.5 to 4.5 Vrat
002-
Assign functions of probes B1, B2, B3, B4, B5
Inside the cold room, the controller can use the following probes:
• outlet:
• intake;
• defrost, placed on the evaporator, preferably where ice remains the
longest;
Probe B1 is confi gured as an ambient temperature probe and its function
cannot be changed.
Par. Description Def Min Max UOM
/A2 B2 confi guration
0 Absent
1 Defrost probe 1 (Sd1)
2 Intake probe (Sr)
3 Generic temperature probe 2
103-
/A3 B3 confi guration
0 Absent
1 Defrost probe 2 (Sd2)
2 Cond. probe (Sc)
3 Defrost probe 1 (Sd1)
4 Ambient probe (SA)
5 Generic temperature probe 3
005-
/A4 B4 confi guration
0 Absent
1 Ambient temperature probe (SA)
2 Humidity probe
3 Generic temperature probe 4
4 Generic humidity probe 4
004-
/A5 B5 confi guration
0 Absent
1 Humidity probe
2 Generic temperature probe 5
3 Generic humidity probe 5
4 Generic pressure probe 5
5 Condensing pressure probe (Scp)
005-
For probe B4, if confi gured as a 0 to 10 V input (/P4 = 2) and for probe
B5, the logical values to be used by the controller corresponding to the
physical full scale readings can be assigned.
Par. Description Def Min Max UOM
/4L
Minimum value of probe 4 (0 to 10 V input
only)
0 -50.0 /4H -
/4H Maximum value of probe 4 (0 to 10 V input
only)
100.0 /4L 200.0 -
/5L Minimum value of probe 5 0 -50.0 /5H -
/5H Maximum value of probe 5 100.0 /5L 999 -
Example: if a pressure sensor with 4 to 20 mA output is connected to
input B5 with the range -1 to 9.3 bars, set
- /5L = -1,0
- /5H = 9,3
In this case, when the probe reads 12 mA, the value associated with the
reading of B5 will be 4.1 (mid scale).
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