Eliwell EWPlus 971, EWPlus 961, EWPlus 974 User Manual

EWPlus 961/971/974

Electronic controllers for refrigeration units

USER INTERFACE

Reduced SET / Economy LED

Permanently on: Energy Saving active
Flashing: Reduced SET active

Quick flashing: access to level2 parameters

Off: otherwise

Compressor LED

Permanently on: compressor active
Flashing: a delay, a protection or a
locked start-up
Off: otherwise

Defrost LED

Permanently on: defrost active
Flashing: manual or D.I. activation
Off: otherwise

°C LED

Permanently on: °C setting (dro = 0)
Off: otherwise

°F LED

Permanently on: °F setting (dro = 1)
Off: otherwise

NOTE:

When switched on, the device performs a Lamp Test; the
display and LEDs will flash for several seconds to check that
they all function correctly.

Alarm LED

Permanently on: alarm active
Flashing: alarm acknowledged
Off: otherwise

Fans LED

Permanently on: fans active
Off: otherwise

Aux LED

Permanently on: Aux output active
Flashing: Deep Cooling cycle active
Off: Aux output not active

HEAT mode LED

Permanently on: compressor in HEAT mode
Off: otherwise

(only EWPlus 961)

NOTE:

If the instrument is set in the COOL mode, in order to use
it in the HEAT mode it is necessary to reprogramme the
instrument by using the properly programmed Copycard.
The same procedure should be followed to pass from the
HEAT mode to the COOL mode.

NOT USED
(only EWPlus 961)

KEYs

UP

Press and release

• Scroll menu items

• Increases values

Press for at least 5 sec

• Activates the Manual Defrost function

DOWN

Press and release

• Scroll menu items

• Decrease values

Press for at least 5 sec

• Function can be configured by the user

((see parameter H32)

STAND-BY (ESC)

Press and release

• Returns to the previous menu level

• Confirms parameter value

Press for at least 5 sec

• Attiva la funzione Stand-by (OFF)

(quando non sono all’interno dei menu)

SET (ENTER)

Press and release

• Displays alarms (if active)

• Opens Machine Status menu

Press for at least 5 sec

• Opens Programming menu

• Confirm commands

MOUNTING - DIMENSIONS

The device is designed for panel mounting. Drill a 29x71 mm hole and insert the instrument; secure it with the special brackets
provided. Do not install the instrument in damp and/or dirty places; in fact, it is suitable for use in places with ordinary or normal levels
of pollution. Keep the area around the instrument cooling slots adequately ventilated.

70 mm

29 mm

71 mm

74 mm

59 mm

EN

32 mm

L

CONNECTIONs

ECPlus

PLUS

961

(A)

230Va (±10%)

4.5W

TTL

A

3-2 Compressor relay (
3-4

power supply input

230Va

10-9 Pb1 probe

EWPlus 961 TERMINALs

)

10-11 Digital Input 1

4 11

2 3 9

10

N-L

230Va

power supply

TTL TTL input

Pb1

D.I.1

N

L

PLUS

971

(A) (B)

230Va (±10%)

4.5W

4 5 11

2 3 6 7 8 9

10

TTL

A

3-2 Compressor relay (
3-4

power supply input

230Va

5-6 N.O. Defrost relay (
5-7 N.C. Defrost relay (

10-8 Pb2 probe

EWPlus 971 TERMINALs

)

)
)

10-9 Pb1 probe

10-11 Digital Input 1

Pb1

Pb2

N

L

PLUS

974

(C)

(A) (B)

230Va (±10%)

4.5W

1

4 5 11

2 3 6 7 8 9

Pb2

N

Pb1

10

D.I.1

D.I.1

230Va

power supply

N-L
TTL TTL input

EWPlus 974 TERMINALs

TTL

A

3-1 Fans relay (
3-2 Compressor relay (
3-4

230Va

5-6 N.O. Defrost relay (
5-7 N.C. Defrost relay (

10-8

Pb2 probe

10-9

Pb1 probe

10-11

N-L

TTL

Digital Input 1
230Va

TTL input

)

)

power supply input

)
)

power supply

ECPLUS + EWPLUS CONNECTIONS

ECPlus

EWPlus

L = max. 5m

TTL

EWPlus

PASSWORD

Password PA1: used to access “User” parameters. The password is not enabled by default (PA1=0).

To enable it (PA1≠0): press and hold
the label PS1, press

to display the value, modify it using and , then save it by pressing or .

If enabled, it will be required in order to access the User parameters.
Password PA2: used to access “Installer” parameters. The password is enabled by default (PA2=15).

To modify it (PA2≠15): press and hold
see the label PA2, press
find the label diS and press

, set the value to “15” using and , then confirm using . Scroll through the folders until you

to enter. Scroll through the parameters using and until you see the label PS2, press to

display the value, modify it using

1) PA1 & PA2 ≠ 0: Press and hold
to access the “User“ parameters (PA1) or the “Installer“ parameters (PA2).

2) Otherwise: The password PA2 is amongst the level1 parameters. If enabled, it will be required when accessing the Installer
parameters; to enter it, proceed as instructed for password PA1.

NOTE: If the password entered is incorrect, the label PA1/PA2 will be displayed again and the procedure will need to be repeated.

for longer than 5 seconds, scroll through the parameters using and until you see

for longer than 5 seconds, scroll through the parameters using and until you

and , then save it by pressing or . The visibility of PA2 is as follows:

for longer than 5 seconds to display PA1 and PA2. It will then be possible to decide whether

EWPlus + ECPlus

2/8

ACCESSO E USO DEI MENU

Resources are organised into 2 menus which are accessed as explained below:

• “Machine Status” menu: press and release the

• “Programming” menu: press for at least 5 secs the

Either do not press any keys for 15 seconds (time-out) or press the
the previous screen.

key.

key.

, key once, to confirm the last value displayed and return to

"MACHINE STATUS" MENU

Access the Machine Status menu by pressing and releasing the key. If no alarms are active, the “SEt” label appears.
Use the keys

- AL: alarms folder (visibile solo se ci sono allarmi attivi);

- SEt: Setpoint setting folder;

- Pb1: probe 1 - Pb1 folder;

- Pb2: probe 2 - Pb2* folder (EWPlus 971/974 models only);
* folder displayed if Pb2 present (H42 = y)

and to scroll through all the folders in the “Machine Status” menu:

SETPOINT SETTING

appears on the display. To change the Setpoint value, press the
Press

LOCK SETPOINT MODIFICATION

With the keypad locked you can still access the ‘Machine Status’ menu by pressing
the Set point, but you cannot edit them. To disable the keypad lock, repeat the locking procedure.

DISPLAYING THE PROBES: When labels Pb1 or Pb2* are present, press the
corresponding probe. N.B.: 1) Pb2 is only present on EWPlus 971/974 models.

2) the value cannot be modified.

: To display the Setpoint value press the key when the “SEt” label is displayed. The Setpoint value

and keys within 15 seconds.

to confirm the modification.

: The keypad can be locked by programming the ‘LOC’ parameter.

to display

key to view the value measured by the

MENU' DI PROGRAMMAZIONE

To access the “Programming” menu, press the key for more than 5 seconds. If specified, an access PASSWORD will be requested:
PA1 for “User” parameters and PA2 for “Installer” parameters (see “PASSWORD” paragraph).

“User” parameters: When accessed, the display will show the first parameter (e.g. “dF1”).
Press
Press

“Installer” parameters: When accessed, the display will show the first folder (e.g. “CP”). Press
folders on the current level. Select the desired folder using
folder and select the parameter using

NOTE: Make sure you switch the instrument off and on again each time the parameter configuration is changed, in order to
prevent malfunctioning in the configuration and/or timing in progress.

and to scroll through all the parameters on the current level. Select the desired parameter by pressing .
and to modify it and to save the changes.

and to scroll through the

. Press and to scroll through the parameters in the current

. Press and to modify it and to save the changes.

SET POINT EDIT LOCK

It is possible to disable the keypad on this device. The keypad can be locked by programming the ‘LOC’ parameter. With the keypad
locked you can still access the ‘Machine Status’ menu by pressing
To disable the keypad lock, repeat the locking procedure.

to display the Set point, but you cannot edit them.

USING THE UNICARD/COPYCARD

The Unicard/Copycard is connected to the serial port (TTL) and allows rapid programming of the instrument parameters.
Access “Installer” parameters by entering PA2, scroll through the folders using
Select it using

• Upload (UL): select UL and press
If the procedure is a success, “y”, will appear on the display, otherwise “n” will appear.

• Format (Fr): This command is used to format the Unicard/Copycard, (recommended when using the card for the first time).
IMPORTANT: the Fr parameter deletes all data present. This operation cannot be cancelled.

• Download: Connect the Unicard/Copycard when the instrument is switched off. At power-on, data is downloaded from the
Unicard/Copycard to the instrument automatically. At the end of the lamp test, the display will show “dLy” if the
operation was successful and “dLn” if not.

NOTE:
After downloading, the instrument works with
the settings of the new map just downloaded.

EWPlus + ECPlus

, scroll through the parameters using and , then select the function using (e.g. UL).

. This function uploads the programming parameters from the instrument to the card.

OR

DOWNLOAD

and until folder FPr appears.

UPLOAD

3/8

MANUAL DEFROST CYCLE ACTIVATION

To manually activate the defrost cycle, hold down the key for 5 seconds.
If the defrost conditions are not satisfied:

- parameter OdO ≠ 0 (EWPlus 961/971/974)

- probe Pb2 temperature is higher than the defrost end temperature (EWPlus 971/974)
the display will flash 3 times, to indicate that the operation will not be carried out.

DIAGNOSTICS

Alarms are always indicated by the buzzer (if present) and the alarm icon .
To switch off the buzzer, press and release any key; the corresponding icon will continue to flash.
NOTE: If alarm exclusion times have been set (see “AL” folder in the parameters table) the alarm will not be signalled.

- E1: in the event of cold room probe faulty (Pb1), the indication “E1” will appear on the display.

- E2: in the event of defrost probe faulty (Pb2), the indication “E2” will appear on the display (EWPlus 971/974 models only).

ALARMs

Label Fault Cause Effects Remedy

• Display label E1

• check probe type (NTC)

• check probe wiring

• replace probe

E1

Probe1 faulty

(cold room)

• measured values are outside operating
range

• Probe faulty / short-circuited / open

• Alarm icon permanently on

• Disable max/min alarm controller

• Compressor operation based on parameters
“Ont” and “OFt”.

Probe2 faulty

(defrost)

E2

only on

EWPlus 971/974

AH1

AL1

Alarm for HIGH

Pb1 temperature

Alarm for LOW

Pb1 temperature

EA External alarm

OPd Door open alarm

Ad2

end of defrost

cycle due to timeout

• measured values are outside operating
range

• Probe faulty / short-circuited / open

value read by Pb1 > HAL after time of tAO.
(see “MAX/MIN TEMPERATURE ALARMs")

value read by Pb1 < LAL after time of tAO.
(see “MAX/MIN TEMPERATURE ALARMs")

digital input activation
(H11 = ±5)

digital input activation
(H11 = ±4)
(for longer than tdO)

end of defrost cycle due to timeout rather
than due to defrost end temperature being
recorded by probe Pb2.

MAX/MIN TEMPERATURE ALARMs

Relative Temperature

Value to setpoint (Att=1)

• Display label E2

• Alarm icon permanently on

• The Defrost cycle will end due to Timeout (dEt)

• The evaporator fans will work in Duty Cycle
mode.

• Recording of label AH1 in folder AL

• No effect on regulation

• Recording of label AL1 in folder AL

• No effect on regulation

• Recording of label EA in folder AL

• Alarm icon permanently on

• Regulation locked if rLO = y

• Recording of label Opd in folder AL

• Alarm icon permanently on

• Controller locked

• Recording of label Ad2 in folder AL

• Alarm icon permanently on

• check probe type (NTC)

• check probe wiring

• replace probe

• Wait until value read by Pb1 returns below
HAL-AFd.

• Wait until value read by Pb1 returns above
LAL+AFd.

• check and remove the external cause which
triggered the alarm on the D.I.

• close the door

• delay function defined by OAO

• wait for the next defrost cycle for automatic
return

Absolute Temperature

Value (Att=0)

SEt + LAL

AFd

SEt + LAL + AFd

SEt

SEt + HAL – AFd

AFd

SEt + HAL

AFd

LAL

LAL + AFd

LAL - AFd

Minimum temperature alarm Temp. ≤ Set + LAL * Temp. ≤ LAL (LAL with sign)

Maximum temperature alarm Temp. ≥ Set + HAL ** Temp. ≥ HAL (HAL with sign)

Returning from minimum temperature alarm

Temp. ≥ Set + LAL + AFd or
≥ Set - ILALI + AFd (LAL < 0)

Temp. ≥ LAL + AFd

Returning from maximum temperature alarm Temp. ≤ Set + HAL - AFd (HAL > 0) Temp. ≤ HAL - AFd

* if LAL is negative, Set + LAL < Set
** if HAL is negative, Set + HAL < Set

EWPlus + ECPlus

AFd

HAL

4/8

TECHNICAL DATA (EN 60730-2-9)

Classification: control device (not safety) to integrate
Mounting: panel mounting with 71x29 mm (+0.2/-0.1 mm) drilling template
Control type: 1.B
Pollution rating: 2
Material class: IIIa
Overvoltage category class: II
Nominal impulsive voltage: 2500V
Temperature: Operating: –5 … +55 °C - Storage: –30 … +85 °C
Power Supply: 230Va (±10%) 50/60 Hz
Consumption: 4.5W max
Digital Output (relays): please refer to the device label
Fire resistance class: D
Software class: A

NOTE: check the power supply specified on the instrument label; for relay, power supply capacities and PTC probes, contact
the Sales Office.

FURTHER INFORMATIONS

Input Characteristics

Display Range: NTC: –50.0°C ... +110°C; PTC: –55.0°C ... +140°C (on display with 3 digit + sign)
Accuracy: Better than 0,5% of full-scale + 1 digit
Resolution: 0,1 °C
Buzzer: YES (it depends from model)
Analogue Input: 1 NTC input (EWPlus 961) or 2 NTC inputs (EWPlus 971/974)
Digital Input: 1 voltage-free digital input (D.I.1)

Output Characteristics

Digital Output: EWPlus 961: 1 Compressor relay: UL60730 2 Hp (12FLA - 72LRA) max 240Va
EWPlus 971: 1 Defrost relay: N.A. 8(4)A - N.C. 6(3)A max 250Va

1 Compressor relay: UL60730 2 Hp (12FLA - 72LRA) max 240Va
EWPlus 974: 1 Defrost relay: N.A. 8(4)A - N.C. 6(3)A max 250Va

1 Compressor relay: UL60730 1.5 Hp (10FLA - 60LRA) max 240Va

1 Fans relay: 5(2)A max 250Va

Mechanical Characteristics

Casing: PC+ABS UL94 V-0 resin casing, polycarbonate window, thermoplastic resin keys
Dimensions: front panel 74x32 mm, depth 59 mm (without terminals)
Terminals: screw/disconnectable terminals for cables with a diameter of 2.5mm
Connectors: TTL for connection of Unicard / Copy Card
Humidity: Operating / Storage: 10…90 % RH (non-condensing)

Regulations

Electromagnetic compatibility: The device conforms to Directive 2004/108/EC
Safety: The device conforms to Directive 2006/95/EC
Food Safety: The device complies with standard EN13485 as follows:

- suitable for storage

- application: air

- climate range A

- measurement class 1 in the range from -25°C to 15°C
(exclusively using Eliwell NTC probes)

NOTE: The technical specifications given in this document regarding measurement (range, accuracy, resolution, etc.) refer to the
instrument and not to any accessories provided, such as the probes. This means, for example, that the error introduced by
the probe must be added to the typical error of the instrument.

2

ELECTRICAL CONNECTIONs

Attention! Make sure the machine is switched off before working on the electrical connections.

The instrument is equipped with screw or disconnectable terminal blocks for connecting electrical cables with a max. diameter of

2.5 mm
maximum permissible current; in case of higher loads, use a suitably rated contactor. Make sure the power supply voltage complies
with that required by the instrument. Probes have no connection polarity and can be extended using a normal bipolar cable (note that
the extension of the probes influences the electromagnetic compatibility - EMC - of the instrument: take great care with the wiring).
Probe cables, power supply cables and the TTL serial cable should be routed separately from power cables.

EWPlus + ECPlus

2

(one wire per terminal for power connections): for the terminal ratings, see the label on the instrument. Do not exceed the

5/8

TABLE OF "INSTALLER" MENU PARAMETERS

PAR. DESCRIPTION RANGE M.U. EWPlus 961 EWPlus 971 EWPlus 974 LEVEL

Temperature control SEtpoint.

SEt

The SEtpoint is visible from the "machine status" menu only.

COMPRESSOR ('CP' folder)

diFferential. Compressor relay activation differential.

dF1

N.B.: diF cannot be equal to 0.

Maximum value that can be assigned to the Setpoint. N.B.: The two Setpoints are

HSE

interdependent: HSE cannot be less than LSE and vice-versa.

Minimum value that can be assigned to the Setpoint. N.B.: The two Setpoints are

LSE

interdependent: LSE cannot be higher than HSE and vice-versa.

HC The regulator will go to HOT operating mode (‘H’) or COLD operating mode (‘C’) C/F flag C 2

Controller ON time for faulty probe.

Ont

- if Ont = 1 and OFt = 0, the compressor remains ON

- if Ont > 0 and OFt > 0, it runs in duty cycle mode.
Controller OFF time for faulty probe.

OFt

- if OFt = 1 and Ont = 0, the compressor remains OFF

- if Ont > 0 and OFt > 0, it runs in duty cycle mode.

dOn Compressor relay activation delay after request. 0 ... 250 secs 0 0 0 2
dOF Delay after switching off and subsequent activation. 0 ... 250 min 0 0 0 2

dbi Delay between two consecutive compressor activations. 0 ... 250 min 0 0 0 2

OdO

Delay in activating outputs after the instrument is switched on or after a power failure.

(!)

0 = not active.

DEFROST ('dEF' folder)

Type of defrost.
0= electric defrost - compressor OFF during defrost cycle

dty

1= cycle inversion defrost (hot gas) - compressor ON during defrost cycle
2= ‘Free’: defrosting independently of compressor

Interval between the start of two consecutive defrost cycles.

dit

0 = function disabled (defrosting NEVER performed)
Selects the count mode for the defrost interval:

0 = compressor hours of operation (DIGIFROST® method);
Defrost active ONLY when the compressor is on.

NOTE: compressor operation time is counted separately from the evaporator
probe (count active also when evaporator probe missing or faulty).

dCt

1 = appliance running hours = the defrost count is always active when the machine is on
and starts at each power-on;
2 = compressor stop Every time the compressor stops, a defrost cycle is performed
according to parameter dtY;
3 = temperature.

dOH Defrost start delay time after request. 0 ... 59 min 0 0 0 2

dEt Defrost time-out; determines the maximum defrost duration. 1 ... 250 min 30 30 30 1&2

dS1 Defrost end temperature (determined by the evaporator probe). -67.0 ... 320 °C/°F 8.0 8.0 1&2

Determines whether the instrument must enter defrost mode (if the temperature

dPO

measured by the evaporator allows this operation). n = no; y = yes.

FANS ('FAn' folder)

Characterizes the "FSt" parameter that can be expressed or as an absolute temperature

FPt

value or as a value related to Setpoint. 0 = absolute; 1 = relative.
Fan lock temperature; if Pb2 > FSt, the fans are stopped.

FSt

The value is either positive or negative and, depending on parameter FPt, can
be either the absolute temperature or the temperature relative to the Setpoint.

FAd Fan starting differential (see parameter FSt). 1.0 ... 50.0 °C/°F 2.0 2

Fdt Delay time in activating fans after a defrost operation. 0 ... 250 min 0 1&2

dt drainage time. Dripping time. 0 ... 250 min 0 0 1&2

dFd Allows to select the evaporator fans exclusion during defrost. y = yes; n = no. n/y flag y 1&2

Evaporator fans operating mode. The state of the fans will be:

DAY NIGHT

OFF

COMPRESSORONCOMPRESSOR

OFF

FCO

H42 FCO

COMPRESSORONCOMPRESSOR

0 Regulated by Pb2 OFF Regulated by Pb2 OFF
1 Regulated by Pb2 Regulated by Pb2 Regulated by Pb2 Regulated by Pb2
2 Regulated by Pb2 Dutycycle Day Regulated by Pb2 Dutycycle Night

H42 = y

3 Dutycycle Day Dutycycle Day Dutycycle Night Dutycycle Night
0 ON OFF ON OFF
1 ON Dutycycle Day ON Dutycycle Night
2 ON Dutycycle Day ON Dutycycle Night

H42 = n

3 Dutycycle Day Dutycycle Day Dutycycle Night Dutycycle Night

Dutycycle Day: controlled by means of parameters “Fon” and “FoF”.
Dutycycle Night: controlled by means of parameters “Fnn” and “FnF”.

ALARMS ('AL' folder)

Parameters HAL and LAL intended as the absolute temperature value or differential in

Att

relation to the setpoint. 0 = absolute value; 1 = relative value.

AFd Alarm differential. 1.0 ... 50.0 °C/°F 2.0 2.0 2.0 2

EWPlus + ECPlus

LSE ... HSE °C/°F 0.0 0.0 0.0

0.1 ... 30.0 °C/°F 2.0 2.0 2.0 1&2

LSE ... 320 °C/°F 99.0 99.0 99.0 1&2

-67.0 ... HSE °C/°F -50.0 -50.0 -50.0 1&2

0 ... 250 min 0 0 0 2

0 ... 250 min 1 1 1 2

0 ... 250 min 0 0 0 2

0/1/2 num 0 0 1&2

0 ... 250 hours 6 6 6 1&2

0/1/2/3 num 1 1 1 2

n/y flag n n n 2

0/1 flag 0 2

-67.0 ... 320 °C/°F 50.0 1&2

0/1/2/3 num 1 2

0/1 num 1 1 1 2

6/8

PAR. DESCRIPTION RANGE M.U. EWPlus 961 EWPlus 971 EWPlus 974 LEVEL

Maximum temperature alarm. Temperature value (intended either as distance from

HAL (!)

Setpoint or as an absolute value based on Att) which, if exceeded in an upward direction,
triggers the activation of the alarm signal. See "Max/Min Temperature Alarms".

Minimum temperature alarm. Temperature value (intended as distance from the set point

LAL (!)

or as an absolute value based on Att) which, when exceeded downwards, triggers the
activation of the alarm signal. See "Max/Min Temperature Alarms".

PAO

Alarm exclusion time after instrument switch on, after a power failure.

(!)

This parameter refers to high/low temperature alarms only.

dAO Temperature alarm exclusion time after defrost. 0 ... 999 min 0 0 0 2

Alarm signaling delay after digital input disabling (door close).

OAO

This parameter refers to high/low temperature alarms only.

tdO Alarm activation delay time open door. 0 ... 250 min 0 0 0 2

Temperature alarm signal delay time.

tAO

This parameter refers to high/low temperature alarms only.

Alarm for defrosting ended due to time out.

dAt

n = alarm deactivated; y = alarm activated.

rLO External alarm locks controllers. n = does not lock; y = locks. n/y flag n n n 2

LIGHTS & DIGITAL INPUTS ('Lit' folder)

Enable utility switch-off on activation of door switch. 0= disabled;

dOd

1= disables fans; 2= disables compressor; 3= disables fans and compressor.

dAd Activation delay for digital input. 0 ... 255 min 0 0 0 2

ENERGY SAVING ('EnS' folder)

OSP Offset on setpoint. -30.0 ... 30.0 °C/°F 1.0 1.0 1.0 2

DISPLAY ('diS' folder)

LOCk. Setpoint change shutdown. There is still the possibility to enter into parameters

LOC

programming and modify these, including the status of this parameter to permit keyboard
shutdown. n = no; y = yes.

PAssword 1.

PS1

When enabled (PS1 ≠ 0), this is the access key to level 1 parameters (User).
PAssword 2.

PS2

When enabled (PS2 ≠ 0), this is the access key to level 2 parameters (Installer).

ndt Display with decimal point. n = no (integers only); y = yes. n/y flag y y y 2

Calibration 1.

CA1

Positive or negative temperature value added to the value read by Pb1.
This sum is used both for the temperature displayed and for regulation.

Calibration 2.

CA2

Positive or negative temperature value added to the value read by Pb2.
This sum is used both for the temperature displayed and for regulation.

Display mode during defrost.

0 = display the temperature read by Pb1;
1 = locks the reading on the temperature value read by Pb1 when defrosting starts, and

ddL

until the next time the SEt value is reached;
2 = displays the label deF during defrosting, and until the next time the SEt value is
reached.

Select °C or °F for displaying the temperature read by probes. 0 = °C, 1 = °F.

dro

NOTE: switching between °C and °F or vice-versa DOES NOT modify the SEt,
diF values, etc. (e.g. Setpoint=10°C becomes 10°F).

Selection of type of value to be displayed. 0 = Setpoint;

ddd

1 = probe Pb1; 2 = probe Pb2; 3 = not used; 4 = Display "ON"; 5 = not used.
Selection of value to display on ECHO (ECPlus). 0 = Disabled (not present);

ddE

1 = probe Pb1; 2 = probe Pb2; 3 = not used; 4 = Setpoint.

CONFIGURATION ('CnF' folder) - NOTE: the instrument must be switched off and then on again each time folder CnF parameter configuration is modified to prevent

any malfunction of the configuration and/or current timer operations.

Stand-by operating mode.
0 = display switch off; the loads are active and the device reactivates the display to signal

H08

any alarms;

1 = display switch off, loads and alarms stopped;
2 = display with OFF label, loads and alarms stopped.

Configuration of digital input 1/polarity (D.I.1).

0 = disabled; ± 1 = defrost; ± 2 = reduced SET; ± 3 = AUX;
± 4 = door switch; ± 5 = external alarm; ± 6 = stand-by (ON-OFF);

H11

± 7 = not used; ± 8 = deep cooling; ± 9 = not used; ±10 = not used.
NOTE: - the '+' sign indicates that the input is active if the contact is closed

- the '-' sign indicates that the input is active if the contact is open

Configurability of digital output 1 (A).
0 = disabled; 1 = compressor; 2 = defrost;

H21

3 = fans; 4 = alarm; 5 = AUX;
6 = Stand-by; 7 = not used; 8 = condenser fan change rotation;
9 = Heater; 10 = defrost on 2nd evaporator; 11 = 2nd compressor.

H22 Configurability of digital output 2 (B). Same as H21. 0 ... 11 num 2 2 2
H23 Configurability of digital output 3 (C). Same as H21. 0 ... 11 num 3 2

Configurability of DOWN key.

H32

0 = disabled; 1 = defrost;

4 = Stand-by; 5 = deep cooling; 6 = not used.

H42 Evaporator probe present (Pb2). n= not present; y= present. n/y flag y y 1&2

reL reLease firmware. Device version: read-only parameter. / / / / / 1&2

tAb tAble of parameters. Reserved: read-only parameter. / / / / / 1&2

EWPlus + ECPlus

2 = AUX; 3 = reduced SET;

LAL ... 320 °C/°F 50.0 50.0 50.0 1&2

-67.0 ... HAL °C/°F -50.0 -50.0 -50.0 1&2

0 ... 10 ore 0 0 0 2

0 ... 10 ore 0 0 0 2

0 ... 250 min 0 0 0 1&2

n/y flag n n 2

0/1/2/3 num 0 0 0 2

n/y flag n n n 1&2

0...250 num 0 0 0 1&2

0...250 num 15 15 15 2

-12.0 ... 12.0 °C/°F 0.0 0.0 0.0 1&2

-12.0 ... 12.0 °C/°F 0.0 0.0 1&2

0/1/2 num 1 1 1 1&2

0/1 num 0 0 0 2

0 ... 5 num 1 1 1 2

0 ... 4 num 1 1 1 2

0/1/2 num 2 2 2 2

-10 ... 10 num 0 0 0 2

0 ... 11 num 1 1 1 2

0 ... 6 num 0 0 0 2

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PAR. DESCRIPTION RANGE M.U. EWPlus 961 EWPlus 971 EWPlus 974 LEVEL

COPY CARD ('Fpr' folder)

UL Upload. Programming parameter transfer from instrument to Copy Card. / / / / /

Format Copy Card. Erase all data contained in the Copy Card

Fr

ATTENTION: If parameter “Fr” is used, the data entered will be permanently
lost. This operation cannot be cancelled.

/ / / / /

LIABILITY AND RESIDUAL RISKS

ELIWELL CONTROLS SRL declines any liability for damage due to:

- installation/uses different from those specified and, in particular, not complying with the safety regulations and/or instructions
given in this document;

- use on panels that do not provide adequate protection against electric shocks, water or dust when assembled;

- use on panels allowing access to dangerous parts without the use of tools;

- tampering with and/or modifying the product;

- installation/use on panels not complying with current standards and regulations.

DISCLAIMER

This document is the exclusive property of ELIWELL CONTROLS SRL and may not be reproduced or circulated unless expressly
authorised by ELIWELL CONTROLS SRL itself. Every care has been taken in preparing this document; nevertheless ELIWELL CONTROLS
SRL cannot accept liability for any damage resulting from its use.
The same applies to any person or company involved in preparing and editing this document.
ELIWELL CONTROLS SRL reserves the right to make aesthetic or functional changes at any time without notice.

CONDITIONS OF USE

Permitted use

For safety reasons, the instrument must be installed and used according to the instructions supplied and, in particular, parts under
dangerous voltages must not be accessible in normal conditions. The device must be adequately protected from water and dust with
regard to its application, and must only be accessible using tools (except for the front panel).
The device is suitable for use in household refrigeration appliances and/or similar equipment and has been tested for safety aspects in
accordance with the harmonised European reference standards.

Improper use

Any use other than that expressly permitted is prohibited. The relay contacts provided are of a functional type and subject to failure: any
protection devices required by product standards, or suggested by common sense for obvious safety requirements, must be installed
externally to the instrument.

Eliwell Controls s.r.l.
Via dell’Industria, 15 • Z.I. Paludi
32010 Pieve d’Alpago (BL) ITALY
Telephone: [phone]
Fax: [phone]

www.eliwell.com

Technical Customer Support:

Technical helpline: [phone]
E-mail: [e-mail]

Sales:
Telephone: [phone] (Italy)
[phone] (other countries)
E-mail: [e-mail]

EWPlus + ECPlus

cod. 9IS24266-1 • EWPlus+ECPlus • rel.06/12 • EN

© Eliwell Controls s.r.l. 2012 - All rights reserved.

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