AERMEC MCR Manuel D'utilisation page 24

INPUT AND OUTPUT
The following table shows the input/output of the control board:
— The input/output as it is called on the circuit diagram of the board;
— How the inputs and outputs are used on the various machines where the board will be installed;
— The type of electrical signal that characterises the input/output.
I/O
MC5 1-2
MC5 3-4
MC5 5-6
MC5 7-8
M7 1
M7 2
M7 3
M4
M3
MC2 1
MC2 2
MC2 3
MC2 4
MC1
MC6 1
MC6 2
MC6 3
WIRING DIAGRAMS
EHT with on/off valves
Key:
— AD: damper
— CV: chilled water valve
— HV: hot water valve
— MCV: Chilled water modulating valve
— MHV: Modulating hot water valve
— INT: user interface
— HWS: (NTC 20° @10KOhm) hot water temperature probe
— CWS: (NTC 20° @10KOhm) chilled water temperature probe
— AS: (NTC 20° @10KOhm) room air probe
— IAS: (NTC 20° @10KOhm) supplied room air probe
— HS: (4-20mA) air humidity probe
— EC: Enabling input
— SC: Presence sensor input
EC SC
P E L N
24
Function
NTC probe input
NTC probe input
NTC probe input/ Analog input 0÷10
NTC probe input/ Analog input 4÷20mA
Digital inputs DI1
COM digital inputs
Digital inputs DI2
RS485 serial port
TTL serial port
Relay output RL1
Relay output RL2
Relay output RL3
Relay outputs common contact
Board power supply input
Analog output AO1
Analogue outputs common
Analog output AO2
L N
PE
M
AD
R(25°C) = 10Kohm, B(25°/50°C)= 3950K
R(25°C) = 10Kohm, B(25°/50°C)= 3950K
R(25°C) = 10Kohm, B(25°/50°C)= 3950K
R(25°C) = 10Kohm, B(25°/50°C)= 3950K
M7 M6
DIP OFF
1
NTC3
2
NTC4 4-20mA
M1
MCR
N L N L
M M
CV HV
Electrical characteristics
V max 3.3 [V] / I max 10 [mA]
---
V max 3.3 [V] / I max 10 [mA]
V max −9 [V] ÷ +14 [V]
V max 5 [V]
V max 230 [V]/ I max 5 [A]
V max 230 [V]/ I max 5 [A]
V max 230 [V]/ I max 5 [A]
V max 250 [V]/ I max 15 [A]
V max 230 [V]/ I max 1 [A]
V max 10.0 [V] / I max 10 [mA]
---
V max 10.0 [V] / I max 10 [mA]
M5
ON
0-10V
M2 M3 M4
TTL RS485
PE
PE
BMS
RS485
1 2 3 4
MODE
SELECT
INT
%
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