ECP
300
EXPERT STEPPER
Page 26
OPERATION AND MAINTENANCE MANUAL
Rev. 01-20
3RD-LEVEL PROGRAMMING
(EEV PARAMETERS)
To access the third programming level you must:
1. Press and hold the UP (
) and STANDBY keys for more than 3 seconds.
2. Select with the (
) key or the (
) key the variable to be modified. After selecting the desired
variable you will be able to:
•
Display the setting by pressing the SET key.
•
Change the setting by holding down the SET key and pressing one of the (
) or (
) keys.
3. Once the configuration values have been set, to leave the menu, press simultaneously and hold the
(
) and (
) keys for a few seconds until the cell temperature value reappears
.
Changes made to the variables will be automatically saved when leaving the configuration menu.
LIST OF 3RD-LEVEL VARIABLES
(EEV PARAMETERS)
VARIABLES
MEANING
VALUES
DEFAULT
ESH
Overheating set-point.
0.1÷ +25.0 °C
6.0°C
EEV
EEV electronic valve management
With EEV=0 all related controls and signals are disabled.
The related errors of probes S4 (Intake temperature) and S5
(Evaporation pressure) are also disabled and excluded.
Settings 1 through 4 load the default values into the
ECt, EPb, EtI, Etd, ELS variables. When leaving the
programming:
if the selected EEV value is different from
the previously stored one, the defaults related to the
selection are loaded.
Pressing the Set key alone to see the current EEV value
does not load the defaults.
0 = disabled
1 = EEV control (default 1)
2 = EEV control (default 2)
3 = EEV control (default 3)
4 = EEV control (default 4)
5 = EEV control (default 5)
6 = EEV control via Modbus
(register 1536)
(see table in Chap. 5.15)
1
ErE
Type of refrigeration GAS used.
Setting this parameter is of fundamental importance for
the correct operation of the electrical panel.
0 = R404
1 = R134
2 = R22
3 = R407A
4 = R407F
5 = R407H
6 = R410A
7 = R450A
8 = R507
9 = R513A
10 = R744 (CO2)
11 = R449A
12 = R290
13 = R32
14 = R448A
15 = R452A
16 = R600
17 = R600A
18 = R1270
19 = R1234ze
20 = R23
21 = R717 (NH3)
22 = R454C
0
EPb
Proportional band (gain) PID overheating adjustment.
1 ÷ 100%
15%
EtI
Integral time PID algorithm overheating adjustment
0 ÷ 500 sec
100
Etd
Derivative time PID algorithm overheating adjustment
0.0 ÷ 10.0 sec
2.0
EOE
Percentage of EEV valve opening in case of error in
probes S4 or S5.
This function allows you to continue the
adjustment although not optimally in case of failure of
adjustment probes.
0 ÷ 100%
50%
ESO
During the Start phase the EEV valve opens at the ESO
percentage for the ESt time
0 ÷ 100%
85%
ESt
Duration of the Start phase.
At this stage the MOP, LOP, LSH alarms are disabled.
0 ÷ Edt tens of seconds
6
tens of sec
EdO
After Defrost the EEV valve opens at the EdO percentage
for the Edt time
0
÷ 100%
100%
Edt
Duration of EdO valve opening phase after Defrost.
At this stage the MOP, LOP, LSH alarms are disabled.
Est ÷ 250 tens of seconds
24
tens of sec
EHO
Maximum opening percentage of the EEV valve:
in the
case of an oversized valve, this variable allows limiting its
maximum opening to the set percentage.
0 ÷ 100%
100%
5.13
CHAP. 5 - Data programming
5.14
