Emerson Dixell XC645CX User Manual

1592001440 XC645CX GB r3.4 31.10.2017.docx XC645CX 37/54
18.3 Condenser with Inverter or Ec Fans–Analog Output Setting
This configuration is used when all fans of the condensing group are ECI fans or driven by one
inverter or a chopped phase driver.
The capacity used by the inverter is proportional to the delivery pressure value inside the
regulation band (SETF-Pb/2÷ SETF+Pb/2).
18.3.1 Condenser fan configurations and Parameters
Parameter
Description
Action
oA(i) = inF
Set 1 relay for inverter
One relay is used to enable the action of the inverter.
AoC = tEn
Analog output setting
Set the output as 0-10V
AoF = InF
Analog output function
Set the output to drive ECI or inverter fan
AOM =0
Minimum value for
analog output
The minimum voltage is 0V.
NOTE: verify on the inverter of ECI fan of chopped
phase driver that with this input a proper output is
supplied to the fan.
AOt = 5
Time of analog output
at max after the start
To start the fan the controller supplies 10V output for
5s, then starts standard regulation
MPM = 100
Maximum % variation
per minute
The analog output takes 1 min to move from the min
to the maximum
18.3.2 How to set it
Parameters involved: oA(i) = inF; AoC = tEn, AoP = P2, AOM = 30, MPM = 100
P2
Volt
SETF-Pb/2 SETF+ Pb/2
10
0
AOM
100
10
P2
SETF-Pb/2 SETF+ Pb/2
On
OAi = inF
a. If required, set a relay to drive the invert (is used to signal to the inverter to start and stop the
regulation), by setting: oA(i) = inF inverter for fans
b. Set the kind of signal of the analog output current (4-20ma) or voltage (0-10V) by the
Analog output setting parameter “AoC”: tEn = 0÷10V output; cUr = 4-20mA output
c. Set the function of the analog output: AoF = InF
d. Set the time of the analog output at max after start up EI: Aot = 3s
e. Set the max % variation per min (MP)
f. At last set also the percentage of analog output in case of probe failure: (0 ÷ 100%)SAO

Emerson Dixell XC645CX Specifications

General

Brand	Emerson
Model	Dixell XC645CX
Category	Controller
Language	English