20
H050002740 rel. 1.1 - 17.05.2021
Installation
ENG
R
ef.
C
onnector
D
escription
10
J10 (#)
ID5
ID4
ID
3
VL
S6
S4
J
10
GND
+V
50002740
_
0
1
0
_
R02
ID3
Digital input 3
ID5
Digital input 5
+V
Power supply to 4-20 mA active probes
S6
Universal probe input (optional)
VL
Not used
ID4
Digital input 4
GND
Common reference for probes, digital inputs
S4
Evaporation pressure probe
11
J11
50002740
_
0
11_
R02
ID1
ID
2
Y1
Y
2
S1
S
3
S
2
S5
GND
J
11
+5VREF
+5VREF
5 V: power to ratiometric probes
S3
Suction temperature probe
S1
Discharge temperature probe
Y1 (****)
0-10 V control for evaporator fan
ID1
Digital input 1
GND
Common reference for probes, digital inputs
S5
Universal probe input (optional)
S2
Defrost probe
Y2 (****)
0-10 V control for evaporator-condenser
ID2
Digital input 2
12
J12
C1/2
Common for relays 1, 2
NO1
Digital output (relay) 1
NO2
Digital output (relay) 2
13
J13
C3
Common for relay 3
NO3
Digital output (relay) 3
14
J14
E2V valve connector
Tab. 3.c
(#) On models where featured.
(*) The earth connections inside the controller are electrically connected together and to PE.
(**) J3/J4: terminals for Vdc modulating evaporator/condenser fan respectively, driven directly by the controller.
(***) Voltage-free digital input. If not used, short-circuit using the jumper supplied in the connector kit.
(****) Y1/Y2: outputs for controlling the externally-powered Vac modulating evaporator/condenser fans respectively.
Caution
•
observe the requirements of the Low Voltage and Electromagnetic Compatibility directives for sizing the protection devices
upstream of the controller and correct earthing;
•
in the European Union, all units that incorporate the controller must comply with the Machinery Directive 2006/42/EC.
Specifically, the manufacturer of the unit is responsible for installing a main switch and conformity to standard EN 60204-1;
•
for a fixed installation in accordance with IEC 61800-5-1, a device is required that interrupts the circuit between the power
supply and the controller;
•
only use hard-wired power connections; the controller must be earthed: the earth wire must be sized for the maximum
fault current.
3.6 Conformity to EMC standards
Heosone is designed in compliance with the requirements of European EMC standards. All models are fitted with an internal
filter that reduces conducted emissions to the power supply line. It is the installer’s responsibility to ensure that the device or
system that Heosone is incorporated into is compliant with the standards in force in the country in which it is used. Conformity
to EMC standards requires compliance with the instructions shown under “Electrical connections” and, as this also depends on
the layout of the wiring, needs to be verified on the final equipment, as required by the relevant product standard. As regards
the general EMC guidelines, strictly observe the instructions shown under “Electrical connections“ and in the user manual
+0300099-, downloadable, even prior to purchase, from www.carel.com.
3.7 Electrical connections
For installation proceed as described below, with reference to the general connection diagram (see the following paragraph).
Each terminal on Heosone can be connected to different models of connectors, with retaining catches integrated into the
plastic cover. The complete list of connectors is available in the chapter “Technical specifications”.