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

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

32 mm

CONNECTIONs

ECPlus

PLUS

961

(A)

230Va (±10%)

4.5W

TTL

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

N-L

230Va

power supply

TTL TTL input

Pb1

D.I.1

PLUS

971

(A) (B)

230Va (±10%)

4.5W

4 5 11

2 3 6 7 8 9

TTL

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

PLUS

974

(C)

(A) (B)

230Va (±10%)

4.5W

4 5 11

2 3 6 7 8 9

Pb2

Pb1

D.I.1

230Va

power supply

N-L TTL TTL input

EWPlus 974 TERMINALs

TTL

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 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.

DOWNLOAD

and until folder FPr appears.

UPLOAD

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+ 5 hidden pages

Eliwell EWPlus 971, EWPlus 961, EWPlus 974 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual