Emerson Dixell XC645D User Manual

1592001830 XC645D GB r3.4 04.09.2017.docx XC645D 34/50
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, AoF = InF, Aot = 0, AOM = 30, MPM = 100
P2
Volt
10
0
AOM
100
10
P2
SETF-Pb/2 SETF+ Pb/2
On
OAi = inF
SETF-Pb/2 SETF- Pb 100-2AOM
2 100
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
18.4 Analog output “free”
This setting is used to link the analog output 1 to a temperature probe. The analog output will take
values proportional to the temperatures detected by the probe P3 or P4, according to the setting.

Emerson Dixell XC645D Specifications

General

Brand	Emerson
Model	Dixell XC645D
Category	Controller
Language	English