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EWHT800LX  

 

10 - EN

English

EWHT800LX can be connected to:

•  telecontrol system TelevisSystem (°)

•  third-party systems via Modbus protocol (°°)

•  Param

Manager fast parameter setting software 

The connection can be made in 2 ways:

1)  via TTL serial port. See Electrical Connections.  

 

Use the BusAdapter150 TTL- RS 485 interface module

2)  by direct RS-485 connection using the optional RS485/TTL plug-

in module (not included).  

 

See figure opposite.

In both cases, use a RS485/RS232-USB PC interface

 converter and 

the required software licence.

(°)  To configure the instrument for this purpose, open the file identified by the label "Add" and use 

parameters "dEA" and "FAA*

(°°)  To configure the instrument for this purpose, open the file identified by the label “Add” and use 

parameters "dEA", "FAA", "PtY"*

*FOR MORE INFORMATION READ the manual, p/n 9MA10024

SUPERVISION

+

-

+12V

I

I (4...20mA)

Pb5

Pb5

51  52  53

GND

Analogue
Output - AO

Analogue
Output - AO

39  40  41

0...20mA

4..20mA

GND

39  40  41

0...10V PWM

10V 55mA

485+

GND

485-

RS-485

RS-485

Keyboard

Copy  Card

EWHT800 LX

14  15  16

Pb3

Pb4

Pb2

Pb1

DI4

DI3

DI2

DI1

Power

Supply

100...240V

17  18  19  20 21  22  23  24

31  32

39  40  41 45  46  47 51  52  53

Analogue

Output - AO

Pb5

TTL

25  26

 

27

 

28

 

29

 

30

64  65

 

66

 

67 68  69

 

70

 

71

54  55  56  57 59  60  61  62

Removable

Terminals

OUT8 

OUT7 

OUT6 

OUT5 

OUT4 

OUT3  OUT2  OUT1 

H28 

H27 

H26 

H25 

H24 

H23 

H22 

H21 

Relais

Parameters

Default configuration

LINE

NEUTRAL

Faston

2  3  4  5

 

 

10

 

11

 

12

 

13

8  9

AUX 1

AUX 1 

RS485 connection to

Televis

System 

available 

with optional plug-in

module only

Copy

Card

Bus

Adapter

RS 485 

TTL 

AUX 2

AUX 2 

+

+

-

-

ALARMS AND TROUBLESHOOTING

How to display the alarms

1)  Press and release the UP key. The upper display will always show the label ALr. The lower display 

will show:

• nOnE if no alarms active

•  SYS to indicate system alarms - see Alarms Table

•  HACP to indicate HACCP alarms - see HACCP alarms

2)  Using the UP & DOWN keys, find the type of alarm that you want to check

System alarms

The upper display will show the label ALr, the lower display will indicate the alarm code 

 

- see Alarms Table 

•  Using the UP & DOWN key, scroll the other alarms

•  Press the ESC key to return to the previous alarm code, press the ESC key several times (or keep it 

pressed) to return to the normal display

HACCP ALARMS

The instrument logs high and low temperature alarms for the cold room probe, as well as any power 

failures. The alarm types and the duration and start time of the alarm itself will be displayed in the 

alarms folder ALr. It is possible to disable the recording of alarms and/or resetting of HACCP alarms. 

See Functions Menu.

FOR MORE INFORMATION READ the manual, p/n 9MA10024

Summary of Contents for Coldface EWHT800LX Series

Page 1: ...EWHT800LX Controllers for cold rooms and curing rooms for on board installation...

Page 2: ...downloaded free of charge from the www eliwell it website MECHANICAL INSTALLATION Manual defrost Display HACCP alarms if function active Display alarms if active Functions menu LOC keyboard lock rSE a...

Page 3: ...3 Heating OUT4 Compressor OUT5 Evaporator fan OUT6 Auxiliary 1 ventilation fans OUT7 Auxiliary 2 destratification fans OUT8 Light Probe inputs default settings Pb1 NTC cold room probe Pb2 NTC defrost...

Page 4: ...lation FansOFF 2 CONDENSERFANS yellow FansON FansOFF 3 VENTILATIONFANS AUXILIARY1 AUX yellow VENTILATIONFANS AUX1ON VENTILATIONFANS AUX1OFF 4 DESTRATIFICATIONFANS AUXILIARY2 AUX yellow DESTRATIFICATIO...

Page 5: ...document in the section Parameters Table 1 Press and hold the SET key for 3 seconds until the display shows PAr Lite 2 Press and release the SET key once more The upper display will show the first pa...

Page 6: ...meter FPt can be either the absolute temperature or the temperature relative to the set point 50 150 6 0 C F Fdt Fan activation delay after a defrosting cycle 0 250 0 min dt Drip time 0 250 0 min dFd...

Page 7: ...tor probe Pb2 set H42 0 and set relay OUT5 parameter H25 6 STANDBY or 0 DISABLED to prevent con tinuous ventilation DEHUMIDIFICATION Digital output OUT1 is configured as dehumidification relay It swit...

Page 8: ...is enabled as 0 10V output F00 4 for piloting an external fan module AUXILIARY AUX1 2 ventilation fans Digital output OUT6 is configured as ventilation fans relay The auxiliary output is activated ma...

Page 9: ...gulation activation of relay AUX1 2 and procedures for completing one STEP and switching to the next By default regulation is disabled and the setpoints are all zero The auxiliary relay is enabled The...

Page 10: ...54 55 56 57 OUT8 OUT7 OUT6 OUT5 H28 H27 H26 H25 2 3 4 5 10 11 12 13 8 9 AUX 1 AUX 1 RS485 connection to TelevisSystem available with optional plug in module only Copy Card Bus Adapter RS 485 TTL AUX...

Page 11: ...nlowerdisplay Theupperdisplaywillshowthevalueread bytheroomprobeexceptinthecaseof probeerrors Checkprobetype H45 Checkwiring 2 3 4 5 wireprobe Replaceprobe AL1 Pb1LOWtemperaturealarm valuereadbyPb1 LA...

Page 12: ...11 H14 DependsondelaysetbyparametertdO RecordingoflabelOPdinfolderALr Regulatorblocked seepara dOA PEA Closedoor Depends on delay set by parameter OAO L01 L15 H01 H15 PEn para meter value default 15 m...

Page 13: ...0 10V 0 10 55mA minimum load resistance 180 Ohm Digital output Buzzer only on models where this is provided Serials 1TTL port for connection to Copy Card 1TTL port for connection toTelevisSystem 1RS...

Page 14: ...e 1B controller in terms of software class and structure as a class A device In terms of connection as a device with flexible external and removable cable with Y connection device with pollution grade...

Page 15: ...one 39 0437 986 111 Facsimile 39 0437 989 066 Sales 39 0437 986 100 Italy 39 0437 986 200 other countries saleseliwell invensyscontrols com Technical helpline 39 0437 986 300 E mail techsuppeliwell in...

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