Carel Hecu handleiding
Handleiding
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Hecu +0300023EN rel. 1.2 - 14.12.2021
3. Serial network confi guration
Hecu is fi tted with a built-in RS485 Fieldbus serial port and RS485 BMS
serial port. The RS485 Fieldbus serial line can be connected to 2 power+
inverter and up to 5 MPXPRO/Ultracella controllers. The addresses are
defi ned as shown in the following table. To simplify commissioning with
the default settings, it is recommended to set the MPXPRO/Ultracella
controllers with consecutive addresses, starting from address 11. The
following table shows the default values of the serial addresses for the
connected MPXPRO/Ultracella controllers.
Device Address Device Address
Power+ 1 MPXPRO/Ultracella 3 13
MPXPRO/Ultracella 1 11 MPXPRO/Ultracella 4 14
MPXPRO/Ultracella 2 12 MPXPRO/Ultracella 5 15
C1
C2
L1/LL2/N L3UVW
12 345 678910
F
PE
C1
C2
Fieldbus - Modbus® RS485
max
5 units
Supervisory
system
1
RPRV valve
J1
J9
J11
J12
J14
J16
J17
J18
J19
J20
J21
J22
J23
J24
J10
J13
J2
J3
J4
J5
J6
J8
J7
ON
1
2
OFF
RX-/TX-
RX+/TX+
GND
Vout
RX-/TX-
RX+/TX+
GND
AUX
master
MPXPRO
High
voltage
AUX
master
master
EVDEVO EVDEVOmaster
MPXPRO
High
voltage
12
11
14
13
Fig. 2.o
Notice: system communication is only compatible with MPXpro,
Ultracella.
Caution:
• a possible short circuit on the Fieldbus serial line will compromise
operation of the system compressor.
• As there is no software control on the connected device (MPXpro,
Ultracella), make sure during confi guration to set these correctly,
based on the physical address selected on the evaporator controller.
• To set the power+, MPXpro, Ultracella addresses, see the corresponding
manuals.
Caution: the system is only compatible with MPXpro SW revision ≥
4.0 and UltraCella SW revision ≥ 2.0
2.10 Installation
For installation proceed as follows, with reference to the wiring diagrams:
• before performing any operations on the control board, disconnect
the main power supply by turning the main switch in the electrical
panel OFF;
• avoid touching the control board, as electrostatic discharges may
damage the electronic components;
• suitable electrical protection must be ensured by the manufacturer of
the cabinet or by appropriate installation of the controller;
• if there are several condensing units connected to the same electrical
panel, use a B or B+ residual current circuit breaker when the
compressors are controlled by inverter; these protection devices must
always be installed always upstream of the AC/A/F (see the fi gure
below):
Tipo
AC/A/F
Wh
I
Δn
≥300 mA
S
Tipo
AC/A/F
I
Δn
≤100 mA
Tipo
B/B+
I
Δn
≥30 mA
kHz
NO
OK
Fig. 2.p
• connect any digital inputs, Lmax = 10 m;
• connect the temperature and pressure probe, Lmax=10 m;
• connect the electronic expansion valve cables to connectors J17 and
J21;
• connect the inverter serial communication cable (if used) to terminal
J10;
• connect the optional PGDe terminal (needed for commissioning) to
connector J17;
• connect the power supply to controller and the inverter, if used;
• program the controller using the guided commissioning procedure:
see “Commissioning”.
• connect the electrical loads to the relay outputs only after having
programmed the controller. Always carefully evaluate the maximum
capacity of the output relays, as specifi ed in the Technical specifi cations;
• connect the supervisor serial line to the optional RS485 BMS card.
Caution: avoid installing the controllers in environments with the
following characteristics:
• relative humidity greater than 90% or with condensation;
• strong vibrations or knocks;
• exposure to water sprays;
• exposure to aggressive and polluting atmospheres (e.g.: sulphur and
ammonia gases, saline mist, smoke) which may cause corrosion and/
or oxidation;
• strong magnetic and/or radio frequency interference (thus avoid
installation near transmitting antennae);
• exposure of the controllers to direct sunlight and to the elements in
general.
Bekijk gratis de handleiding van Carel Hecu, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Carel |
| Model | Hecu |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 10743 MB |
