AERMEC NXP 0650 - Electronic Control Multipurpose Unit; Auxiliary Connections (for Standard Version)

27

STARTUP
CIRCULATING PUMP
Turn the unit on (ON)
Start Pump
Control water ow rate (20 seconds):
Flow switch or pressure switch (if provided)
Whenever alarms do not occur, the
compressor starts.
ANTIFREEZE ALARM
Reference parameters:
Compressor Block - O On
Temperature
3°C < > 3°C
Max operations n° 2 -
Cod. Anti-freeze alarm
See User Manual
Restart Manual
Electical Heater
O On
Temperature > 5°C 4°C <
Circulating Pump
O On
Temperature > 5°C 4°C <
Only for pure water (not added with glycol)
WATER FLOW ALARM
If the water ow rate is not sucient, this
safety stops the compressors and the pump
Water
Pump
BLOCCO  OFF ON
Flow Switch
or
Pressure Switch (if provided)
Water ow
rate is not
sucient
>20 seconds -
Compressor not work
Cod. Alarm See User Manual -
Water ow rate
is sucient
-
>20 seconds
Start Compressor
ELECTRONIC CONTROL MULTIPURPOSE UNIT
S90CONN*:
cavo di collegame nto
BMS
Field-Bus
on/offalar m enter
I/ O set prog.
max 50 m
cavo telefonico
0,8 m
200 m
S90CONN
Cavo schermato
AWG24
2 twisted pair
6543 2 1 0 6 5 4 3 210
on/offalar m enter
I/ O set prog.
6 5 4 3 2 1 0
C4 NO8 NO9 NO10 NO11 NO12
RX-/TX- RX+/TX+ GND Vout
C1 NO1 NO2 NO3 C2 NO4 NO5 NO6 NO7 C3 NC7
G
G0
B1 B2 B3 B4 B5 B6 B7
GND
+Vdc +Vdc
GND
+5 Vref
GND
Y1 Y2 Y3 Y4
DI1 DI2 DI3 DI4 DI5 DI6 DI7
DIC1
B9 B8
B10 B11 B12
GND
ID8 ID9
ID10
IDC2
J2 - probe supply J3 - analog input J4 - digital input J5 - analog output J18 - analog input J17 - valve 2 J16 - digital input
J6
J7
J8
J9
J10
J11
J12 - group 1 J13 - group 1 J14 - group 2
J15 - group 3
J1 - power supply
RX-/TX- RX+/TX+ GND
μPc
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



AWG24








AUXILIARY CONNECTIONS (for standard version)