Eliwell EWRC 500 NT, EWRC 300 NT Quick Start Manual

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Page 1

EWRC 300/500 NT

Controllers for static and ventilated cold rooms

English

QUICK START

Page 2

INTRODUCTION

The Coldface EWRC 300/500 NT series controls the temperature of a static or ventilated cold room. The instrument controls positive and negative cold rooms and is capable of managing a double evaporator and condenser probes. Coldface has 3 or 5 conﬁgurable relays depending on the model, 2(3) digital inputs conﬁgurable for door switch or other devices. Models are available with clock with yearly calendar and HACCP event logging. Connection to TelevisSystem / Modbus is possible using the optional module plug-in RS485. The container is used to install a magnetothermal switch or power contactor. This summary document contains basic information about the standard models EWRC 300/500 NT. For further information and different conﬁgurations, refer to the complete user manual cod. 9MA10258 downloadable free of charge from www.eliwell.com.

NAVIGATION DIAGRAM

Display alarms

if active

Display HACCP alarms

if function active

1 sec

English

Manual

defrost

rHC reset HACCP alarms

rSE active Set reduced

MECHANICAL INSTALLATION

3 sec

1 sec

Functions Menu

LOC keypad lock

rPA Pressure switch

rEd disable HACCP

function ON / OFF

Info

System

Turns light

on/o

Turns instrument

on/o

1 sec

3 sec

display probe

value

Pb1

-20.6

rtc

18.55

SET

-18.9

USr

inS

display probe

value

Pb2

-20.6

set time

and date

modify SetPoint

value

diF

2.0

CPr

- - -

conrm with

see manual

SetPoint & Probes

Parameters

modify value

conrm with

116

[UM] mm

A B

235

• Take out the 4 screws supplied and then open the cover.

• Drill holes for the high and low voltage cable glands on the sides of the backplate, as shown.

• Check that the cables are inside the box.

• Use suitable cable glands and/ or conduit glands that guarantee an airtight seal for all wiring.

See cutout at last page.

• Drill 4 holes (see A...D) in the wall and ﬁx the backplate using 4 screws (not supplied) suited to the wall thickness.

• Insert plug covers TDI 20 (accessory available on request)

• Close the door and screw on the 4 cover screws taking care that the hinges are ﬂush and do not interfere with the closure of the cover.

EWRC 300/500 NT 2 - EN

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ELECTRICAL CONNECTIONS

Output relay (default settings)

• OUT1 relay 1 = Compressor (or liquid line valve)

To switch between NTC/PTC probe types use parameter H00. SWITCH OFF AND RESTART THE INSTRUMENT after making the change.

• OUT2 relay 2 = Defrost

• OUT3 relay 3 = Evaporator fan

• OUT4 relay 4 = Light (EWRC 500 NT only) OUT1-4 common-line max 18 A

• OUT5 relay 5 = Alarm/AUX (EWRC 500 NT only)

Probe inputs (default settings)

• Pb1 = NTC cold room probe

• Pb2 = NTC defrost end probe

• Pb3 = Not conﬁgured

Digital Inputs (default settings)

• DI1 = Door switch

• DI2 = not conﬁgured

• DI3 = not conﬁgured

Serial ports

• TTL for connection to UNICARD / Copy Card / MFK

• TTL for connection to TelevisSystem

• RS485 available ONLY with optional Plugin module for connection to TelevisSystem / Modbus.

Important! Make sure the appliance is switched off before working on the electrical connections.

• Probe and digital inputs, OUT5 relay: screw-on terminals pitch 5.01: electric cables with max. cross-section

2.5 mm2 (only one wire per terminal for power connections).

• Power supply and relay OUT1..OUT4: screw-on terminals pitch 7.62: electric cables with max. cross-section 4mm2 (only one wire per terminal for power connections).

English

UNICARD

ELIWELL

Yellow cable

COPY CARD

MFK

RS485

OPTIONAL

EWRC300/500 NT

DISPLAY

EWRC 500NT

OUT1 OUT2 OUT3 OUT4 OUT5

18 A max

only

COM

NONC

18 19 20 2117

1 2 3 4 5 6 7 8

GND GND GND+ +

PB1 PB2 DI2 DI1

PB3/DI3

230 Vac

H21

H22 H23 H24 H25

161514131211109

3 - EN EWRC 300/500 NT

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MODELS WITH COVER AND INSTALLED MINIATURE CIRCUIT BREAKER EWRC 500 NT BREAKER | EWRC 500 NT 4-DIN

The versions with front door allow direct access to the switch miniature circuit breaker or to the top of the device

English

installed on the DIN rail mounted inside. To open the front door, use both hands as shown above. Apply a slight pressure with your thumbs on top to release the side ﬂaps. Simultaneously with the index ﬁnger gently pull the door toward you. In versions provided with the miniature circuit breaker, the installer must connect it to the power supply of the electronic board through the wiring harness included in the packaging. The wiring diagram is shown in the ﬁgure below. In versions with transparent front door, the omega DIN rail is always available and already installed. You can mount up to a maximum of 4 DIN modules, including 2DIN miniature circuit breaker when present. The DIN housing is easily expandable from 2 to 4 DIN exploiting the pre-drilling barriers as shown in the top right.

EWRC500 NT BREAKER

OUT1 OUT2 OUT3 OUT4 OUT5

COM

NONC

18A max

18 19 20 2117

1 2 3 4 5 6 7 8

GND GND GND+ + +

PB1

PB2 DI2 DI1

H21

PB3/DI3

230 Vac

H22 H23 H24 H25

EWRC 300/500 NT 4 - EN

161514131211109

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DISPLAY

%RH

2 3 4 5 6 7 8

LEDS

3-FIGURE UPPER DISPLAY

plus the - sign

Display:

• Operating value

• parameters label

• alarms, functions

if Upper display

it means that the value of the

blinking

Lower Display can be modiﬁed

4-FIGURE LOWER DISPLAY

Display:

• parameters value

• probe value

• function state

HACCP models

• time

English

N. LEDS Colour description

17 RH amber not used

18 TIME amber access in case of time display or editing

19 DATA amber access in case of date display or editing

ALARMS

%RH

No. LED Colour ON

1 POWER SUPPLY green Power supply ON / Power supply OFF

2 ENERGY SAVING amber Energy saving ON / Energy saving OFF

3 NIGHT & DAY amber Night & Day ON / Night & Day OFF

4 HACCP amber HACCP menu / /

5 DEEP COOLING (DCC) amber Drip cooling cycle ON / Drip cooling cycle OFF

6 PUMP DOWN amber Compressor Pump Down ON / Compressor Pump Down OFF

9 COMPRESSOR amber Compressor ON delay Compressor OFF

10 DEFROST 1 amber defrost coil drainage No defrost

11 EVAPORATOR FANS amber Fans ON forced ventilation Fans OFF

12 DEFROST 2 amber defrost coil drainage No defrost

13 HACCP ALARM red HACCP alarm Not displayed No alarm

14 AUXILIARY (AUX) amber AUX ON / AUX OFF

15 LIGHT amber Light ON / Light OFF

16 CONDENSER FANS amber Fans ON / Fans OFF

Alarms LED 7 LED 8

ALARM Red SEE "ALARMS TABLE" page 11”

PANIC Red --- ---

LEAK DETECTOR

PANIC +

LEAK DETECTOR

(1) = As long as the Panic alarm persists it will not be possible to mute the buzzer from the keypad.

Colour

BLINKING

ON: function/alarm ON; OFF: function/alarm OFF

Buzzer

Red

Red ---

LED Buzzer

...

OFF

Off

---

(1)

5 - EN EWRC 300/500 NT

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KEYS

No. KEY press and release

ESC key

Defrost

p UP

Alarms

• Functions Menu

• Alarms Menu (always visible)

press and hold for about

3seconds

• Manual defrost

• Return to Main Menu

• Display SetPoint / probe values / time (Models with clock)

C SET

• Conrm values

• Access Parameters Menu

• Access value edit mode

(upper display blinking)

q DOWN

AUX

E ON/OFF /

system INFO

See Technical Support

Activate auxiliary function

Switch On/O

device

F LIGHT / Switch light on/o /

English

USER INTERFACE

NAVIGATION MENU Notes

• Output

• Scroll

• Increase values

• Conrm values

• Move right

HACCP alarms

only on foreseen models

and if present

display time

Models with clock only

• Scroll

• Decrease values

How to modify the SetPoint

• Press and release the SET key. The upper display will show SEt, the lower display will indicate the current SetPoint value

• Press and release the SET key once more. The upper display will show SEt blinking

• Use the UP & DOWN keys to adjust the Setpoint value

• Press the ESC key several times (or keep it pressed) to return to the normal display

How to read the probe value

• Press and release the SET key. The upper display will show SEt, the lower display will indicate the current SetPoint value

• Press and release the DOWN key. If the RTC clock is present, the time will be shown in the lower display

• Press and release the DOWN key once more. The upper display will show Pb1, the lower display will indicate the value read by the room probe

• Press and release the DOWN key once more to read the value of probe Pb2 and Pb3 if conﬁgured

• Press the ESC key to return to the normal display.

How to modify the User Parameters The user parameters are the most useful parameters and are described in this document, in the section Parameters Table.

1) Press and hold the SET key for 3 seconds until the display shows PAr / USr

2) Press and release the SET key once more. The upper display will show the ﬁrst parameter, the lower display will indicate the current parameter value

3) Using the UP & DOWN keys, ﬁnd the parameter that you wish to modify

4) Press and release the SET key once more. The upper display will show the name of the blinking parameter

5) Use the UP & DOWN keys to adjust the parameter value.

6) Press and release SET to save the parameter value

7) Return to step 3) or press ESC several times to return to the normal display

EWRC 300/500 NT 6 - EN

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USER PARAMETERS TABLE

This section describes the most commonly used parameters which are always visible (the access password PA1 is not enabled by default). For a description of all other parameters, see the user manual.

NOTE: the user parameters ARE NOT divided into sub-folders and are always visible. The same parameters are also visible in the respective folders ‘Compressor’, ‘Fans’, etc. (indicated also here to make the groupings clearer) in the password-protected Installer parameters menu.

PARA. DESCRIPTION U.M. RANGE DEFAULT

SEt Temperature control SEtpoint °C/°F -58.0...302 0.0

COMPRESSOR (CPr)

Activation differential

diF

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

Maximum value that can be assigned to the setpoint.

HSE

NOTE: The two setpoints are interdependent: HSE cannot be less than LSE and vice versa.

Minimum value that can be assigned to the setpoint.

LSE

NOTE: The two setpoints are interdependent: LSE cannot be greater than HSE and vice versa.

Temperature value to be added algebraically to the Setpoint if reduced set enabled (Economy

OSP

function). Enabling can be controlled by a key, function or specially conﬁgured digital input.

Cit Minimum activation time of compressor before possible deactivation. If Cit = 0 not active. min 0 ... 255 0

CAt Maximum activation time of compressor before possible deactivation. If CAt = 0 not active. min 0 ... 255 0

Controller switch-on time in the event of faulty probe.

Ont

- if Ont = 1 and OFt = 0, compressor stays on permanently (ON).

- if Ont > 0 and OFt > 0, compressor operates in Duty Cycle mode. Controller switch-off time in the event of faulty probe.

OFt

- if OFt = 1 and Ont = 0, compressor will always stay off (OFF).

- if Ont > 0 and OFt > 0, compressor operates in Duty Cycle mode. Switch-on delay. The parameter indicates that a protection is active on the general compressor relay

dOn

actuations. At least the indicated time must elapse between the request and the actual activation of the compressor relay. Delay time after power-off: the delay time indicated must elapse between deactivation of the

dOF

compressor relay and the next power-on. Delay time between power-ons; the delay time indicated must elapse between two consecutive

dbi

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

OdO

0 = Not active

dS2 DEFROST (dEF)

Defrost mode

0 = Electric defrost (defrost cycle OFF), or compressor not running during defrost. NOTE: electrical defrost + air defrost, in the case of fans connected in parallel to the defrost output

dtY

dit

dCt

dOH

dEt

dSt

relay.

1 = Cycle inversion defrost (hot gas, or compressor on during defrost) 2 = “Free” mode defrost (independent of compressor).

Interval between 2 defrost cycles Interval between the start of two consecutive defrost cycles. 0 = Function disabled (defrost NEVER performed). Defrost interval count mode 0 = Compressor running time (DIGIFROST® method);

defrost active ONLY when the compressor is on.

NOTE: compressor running hours are counted separately from the evaporator probe (count active also when evaporator probe missing or faulty). 1 = Appliance running hours; defrost count is always active when machine is on and starts at each

power-up.

2 = Compressor stopped Every time the compressor stops, a defrost cycle is performed according to

parameter dtY;

3 = With RTC. defrost at speciﬁc times set by parameters dE1...dE8, F1...F8. Defrost cycle enabling delay from request Delay preceding start of ﬁrst defrost after call. Defrost timeout Determines the maximum defrost time on Evaporator 1. Defrost end temperature Defrost 1 end temperature (determined by evaporator probe 1).

°C/°F 0 ... 30.0 2.0

°C/°F LSE ... HdL 50.0

°C/°F LdL ... HSE -50.0

°C/°F

min 0 ... 255 10

sec 0 ... 255 2

min 0 ... 255 0

min 0 ... 255 2

min 0 ... 255 0

num 0 ... 2 0

hours/mins/

secs

num 0 ... 3 1

min 0 ... 59 0

hours/mins/

secs

°C/°F

-30.0 ...

30.0

0 ... 255 6 hours

1 ... 255 30 min

-302.0 ...

1472.0

0.0

6.0

English

7 - EN EWRC 300/500 NT

Page 8

PARA. DESCRIPTION U.M. RANGE DEFAULT

Defrost enabling request from power-on Determines whether or not the instrument must defrost at power-up

dPO

(provided that the temperature measured at the evaporator will allow defrost).

n (0) = no, does not start defrosting at power-on; y (1) = yes, starts defrost at power-on

FANS (FAn)

Fans lockout temperature; if the value read is greater than FSt, the fans will be stopped. The value can

FSt

positive or negative

FAd Fans activation differential. °C/°F 0.1 ... 25.0 0.1

Fdt Fans activation delay after a defrost cycle. min 0 ... 250 0

dt dripping time. min 0 ... 250 0

Operating mode of evaporator fans during defrost.

dFd

n (0) = no (it depends on FCO parameter); y (1) = yes (fans excluded).

FCO Evaporator fans operating mode. The status of the fans will be:

A compressor ON fans thermoregulated, A compressor OFF depends on FCO

FCO=0, fans OFF FCO=1-2, fans thermoregulated FCO=3-4, fans in duty cycle

Dutycycle: controlled by way of parameters “FOn” and “FOF”.

ALARMS (ALr)

AFd Alarms cut-in differential. °C/°F 0.1 ... 25.0 1.0

Probe 1 maximum alarm. Temperature value (intended either as distance from setpoint or as an

HAL

English

absolute value based on Att) above which the probe will trigger activation of the alarm signal. Probe 1 minimum alarm Temperature value (intended as distance from setpoint or as an absolute

LAL

value based on Att) beneath which the probe will trigger activation of the alarm signal. Alarm override time after device is switched on following a power failure.

PAO

This parameter refers to high/low temperature alarms LAL and HAL only

dAO Temperature alarm override time after defrost. min 0 ... 250 60

Delay preceding indication of temperature alarm.

tAO

This parameter refers to high/low temperature alarms LAL and HAL only

DISPLAY parameters (diS)

LOCk. Setpoint edit lock. The parameter programming menu can still be accessed, and the settings changed, which means also that the status of this parameter can be changed so as to unlock the

LOC

keypad.

n (0) = No y (1) = yes. PAssword 1. When enabled (PA1 ≠ 0) it is the access key for the

PA1

level 1 parameters (User). Display values with decimal point.

ndt

n (0) = No (integers only) y (1) = Yes (display with decimal point).

Calibration of probe Pb1.

CA1

Positive or negative temperature value added to the value read by Pb1. This sum is used for both temperature display and temperature regulation purposes. Calibration of probe Pb2.

CA2

Positive or negative temperature value added to the value read by Pb2. This sum is used for both temperature display and temperature regulation purposes. Display mode during defrost.

0 = Displays the temperature read by probe 1 = Locks the reading at the temperature value registering via the probe when the defrost cycle starts

ddL

H00

and until the next time the SEt is reached.

2 = Displays the label dEF during defrosting and until the next time the SEt is reached (or until Ldd

has elapsed).

CONFIGURATION (CnF)

If one or more parameters present in the folder are changed, the controller MUST be switched off and switched on again.

Selection of type of probe used (Pb1 ... Pb3). (0) = PTC (1) = NTC

ﬂag n/y n

°C/°F -58.0...302 0.0

flag n/y y

num 0 ... 4 1

°C/°F LA1...302 5.0

°C/°F -58.0...HA1 -5.0

hours 0 ... 10 3

min 0 ... 250 0

flag n/y n

num 0 ... 250 0

flag n/y y

°C/°F -30.0...30.0 0.0

num 0/1/2 1

num

0/1

(PTC/NTC)

1 (NTC)

EWRC 300/500 NT 8 - EN

Page 9

PARA. DESCRIPTION U.M. RANGE DEFAULT

Configuration of digital output 3 (OUT 3).

0 = disabled 1 = compressor 2 = defrost 1

H23

3 = Evaporator fans 4 = alarm 5 = AUX 6 = Stand-by

Evaporator probe (Pb2) present

H42

n (0) = not present y (1) = present

rEL Firmware version release (e.g. 1,2,...). Read only. See Technical Support. / / /

tAb Map code. Read only. See Technical Support. / / /

COPY CARD parameters (FPr)

UL Upload. Transfer of programming parameters from instrument to Copy Card / / / dL Download. Transfer of programming parameters from Copy Card to instrument / / /

Formatting. To erase data on Copy Card.

IMPORTANT: If parameter “Fr” is used, the data entered will be permanently lost. This

operation cannot be reversed.

7 = light 8 = Buzzer output 9 = defrost 2 10 = compressor 2 11 = frame heater 12 = Condenser fans 13 = Compressor Pump Down

num 0 ... 13 3

num n/y y

/ / /

THE INSTRUMENT IS USED TO EDIT OTHER PARAMETERS PRESENT IN THE INSTALLER LEVEL (inS)

English

How to edit the installer level parameters

Procedure applies only to more advanced applications. In this case the parameters are arranged in folders (Compressor / Defrost / Fans etc)

1) Press and hold the SET key for 3 seconds until the display shows PAr / USr

2) Use UP & DOWN to select the parameter section inS

3) Press and release the SET key once more. The display will show the ﬁrst folder

4) Press and release the SET key once more. The upper display will show the ﬁrst parameter in the folder, the lower display will indicate the current parameter value

5) Using the UP & DOWN keys, ﬁnd the parameter that you wish to modify

The procedure proceeds in a similar manner to that described for the User parameters (points 4-7)

OPERATION IN DEFAULT CONFIGURATION

The instrument is conﬁgured for negative cold. For positive cold, disable the evaporator probe Pb2 (set

H42=n) and set relay OUT3 (parameter H23=6) to prevent continuous ventilation. COMPRESSOR

The compressor is active if the cold room temperature detected by Pb1 exceeds the value of SEt + differential diF. The compressor stops if the cold room temperature detected by Pb1 falls below the SEt value. The instrument includes compressor on/off protection*

DEFROST

Defrost is by means of electric heaters (parameter dty = 0) and the time counter is always active with the instrument switched on (dCt=1).

Manual defrost

Manual defrost is activated by pressing and holding the ESC key (A). If conditions for defrosting are not present, (e.g. the evaporator probe temperature is higher than the defrost end temperature) or the parameter OdO≠0, the display will blink three times to indicate that the operation will not be performed.

Default Defrost settings dit = 6 hours. interval between 2 defrost cycles dSt = 6.0 °C. defrosting end temperature set by Pb2. The Defrost cycle may terminate due to timeout based on the parameter dEt (default 30 min). EVAPORATOR FANS

Relay OUT3 is conﬁgured as fans relay and is activated in the required cases, according to delays and parameter settings*

9 - EN EWRC 300/500 NT

Page 10

Default fan settings dt = 0 min. dripping time dFd = Y. Fans off during defrosting. LIGHT (EWRC 500 NT)

The light is activated by pressing and holding the LIGHT key (F). Since digital input D.I. 1 is conﬁgured as door switch, relay OUT4 (light) is activated when the door is opened. The light also switches on with the instrument in stand-by*.

ALARM RELAY (EWRC 500 NT)

Relay OUT5 is conﬁgured as alarm relay and is activated in the case of alarms, according to delays and parameter settings. *FOR MORE INFORMATION READ the manual, code 9MA10258

SUPERVISION

EWRC 300/500 NT can be connected to:

• TelevisSystem or external system remote control system via Modbus protocol

• DeviceManager fast parameter setting software

The connection can be made by direct RS-485 connection using the optional RS485/TTL plug-in module (not included). See Electrical Connections.

*FOR MORE INFORMATION READ the manual, code 9MA10258

English

TECHNICAL SUPPORT

Please have the following information available when contacting Eliwell Technical Support:

• IdF ﬁrmware version (e.g. 554)

• rEL ﬁrmware version release (e.g. 1,2,...)

• tAb map code

• rC instrument model (e.g. 300 or 500)

To obtain this information:

• Press and release the DOWN / INFO key

• Press and release the DOWN key once more to display other information about the instrument.

• Press the ESC key to return to the normal display.

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 • AVAILABLE ONLY FOR HACCP MODELS

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, code 9MA10258

EWRC 300/500 NT 10 - EN

Page 11

ALARMS TABLE

This section lists alarms associated with the default conguration of the instrument. For a description of alarms relating to custom congurations, refer to the user manual or contact Eliwell Technical Support.

Label Cause Eects Problem solving

Pb1 room probe faulty

• Measured values are outside operating

E1*

range

• Probe faulty/short-circuited/open

Pb2 defrost probe faulty

• Measured values are outside operating

E2*

range

• Probe faulty/short-circuited/open Pb1 LOW temperature alarm

LA1

• Value read by Pb1 < LAL after time of tAO. Pb1 HIGH temperature alarm

HA1

• value read by probe Pb1 > HAL after time of “tAO”. End of defrost cycle due to time-out

Ad2

rather than due to defrost end temperature being read by the defrost probe

• Activation of digital input (set as door switch) See para. H11/H12

OPd

• Depends on delay set by parameter tdO

• Label E1 displayed

• Disabling of maximum and minimum alarm regulator

• Compressor operation based on parame-

• Check probe type NTC/PTC (see H00)

• Check probe wiring.

• Replace probe

ters “Ont” and “OFt” if set for duty cycle.

• Label E2 displayed

• The Defrost cycle will end due to timeout (Parameter “dEt”)

• Recording of label LA1 in folder ALr

• No eect on regulation.

• Recording of label HA1 in folder ALr

• No eect on regulation.

• Check probe type NTC/PTC (see H00)

• Check probe wiring.

• Replace probe

• Wait for the temperature value read by Pb1 to come back above LAL+AFd

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

• Recording of label Ad2 in folder ALr • Wait for the next defrost cycle for automatic return

• Recording of label OPd in folder ALr

• Regulator locked (see para. dOA/PEA)

• Close door

• Depends on delay set by parameter OAO

English

E10**

**Models with clock only

Clock alarm clock faulty or battery low

Functions associated with clock not present

Contact Eliwell Technical Support

ALL ALARMS

• Alarm icon permanently alight

• Buzzer (if present) and alarm relay (OUT5) activated, except Ad2

• Press any key to silence the alarm. The LED changes from a steady light to a blinking light. NOTE: the buzzer is deactivated while the alarm relay remains active *E1 - E2: If simultaneous they will be shown alternately on the display at a frequency of 2 seconds

WARNINGS

Important! Make sure the appliance is switched off before working on the electrical connections.

• Probe and digital inputs, OUT5 relay: screw-on terminals pitch 5.01: electric cables with max.

cross-section 2.5 mm2 (only one wire per terminal for power connections).

• Power supply and relay OUT1..OUT4: screw-on terminals pitch 7.62: electric cables with max. cross-section of 4 mm2 (only one wire per terminal for power connections). For the capacity of the terminals, see the label on the instrument. Outputs on OUT1-4 relay max. capacity 18A. Do not exceed the maximum permitted current; for higher loads, use a contactor with sufﬁcient power capacity. Make sure that power supply is of the correct voltage for the instrument. Probes have no connection polarity and can be extended using a normal two-core cable (note that extension of the probe leads inﬂuences the instrument’s electromagnetic compatibility - EMC and measurement class: take great care with the wiring). Probe cables, power supply cables and the TTL serial cables should be routed separately from power cables.

11 - EN EWRC 300/500 NT

Page 12

TECHNICAL SPECIFICATIONS (EN 60730-2-9)

DESCRIPTION

Front panel

IP65

Classiﬁcation

electronic automatic control device (not safety) device for stand-alone installation

wall mounted (distance between holes A-B 116 mm; holes C-D 87 mm holes A-C 235 mm

Hinges are available for mounting on special compartments for opening the cover both right

Screw on the respective anchoring screws taking care that the hinges are ﬁtted well and lie ﬂush

so that they do not interfere with the compression of the seal

Type of action

1.B

Pollution class

Material class

IIIa

Over voltage category

Nominal pulse voltage

2500 V

Operating temperature

-5 ... 50 °C

Power supply

230 Vac ± 10 % 50/60 Hz

Power consumption

11 VA max

EWRC 500 BREAKER version only

230 Vac Icn 4500 A, Bipolar (2P), for wires up to 10 mm

EWRC 500 BREAKER version only

In = 16 A

EWRC 500 BREAKER version only

4 KV

Digital outputs (relay)

refer to the label on the device

Fire resistance category

Software class

Connection

device on external ﬂexible cable, Y type connection

Ball test temperature

100 °C

See Mechanical Installation paragraph

Installation

Miniature Circuit Breaker

English

Rated breaker current

Rated impulse voltage

and left.

EWRC 300/500 NT 12 - EN

Page 13

FURTHER INFORMATION

DESCRIPTION

Container

PC+ABS

Dimensions

front panel 213x318 mm, depth 102 mm

Dimensions

EWRC500 NT BREAKER version

screw-on terminals (see wiring diagram)

IMPORTANT: do not exceed ampere limits

Storage temperature

-20 ... 85 °C

Operating humidity

Storage humidity

–50 … 110 (NTC) / –55 … 150 °C (PTC) no decimal point, on 2 displays:

(upper display) 3 digit + sign/ (lower display) 4 digit

Analogue Inputs

3(2) NTC inputs PTC conﬁgurable by parameter H00

Digital Inputs

2(3) digital inputs no voltage conﬁgurable from parameter H11/H12/H13

EWRC 300 NT version

EWRC 500 NT version

common-line max 18 A

Buzzer

only on models where this is provided

• 1 TTL port for connection to Unicard / Copy Card / MFK

(use with optional plug-in module)

Accuracy

better than 0.5 % of end of scale +1 digit

Resolution

1 or 0.1 °C

RTC battery life

In a power failure, the clock battery will last 4 days.

front panel 221x318 mm, depth 107 mm

Connections

Display range

Relay outputs

Serial ports

with internal housing for magnetothermal switch,

remote control switch, contactor, etc. on DIN rail

10…90 % RH non-condensing

• OUT1 output SPST 2 HP 12(12) A 250 Vac

• OUT2 output SPST 1 HP 8(8) A 250 Vac

• OUT3 output SPST 1/2 HP 8(4) A 250 Vac common-line max 18 A

• 1 TTL port for connection to TelevisSystem

• 1 RS-485 serial port for connection to TelevisSystem / Modbus

English

• OUT1 output SPST 2 HP 12(12) A 250 Vac

• OUT2 output SPST 1 HP 8(8) A 250 Vac

• OUT3 output SPST 1/2 HP 8(4) A 250 Vac

• OUT4 output SPST 1 HP 8(8) A 250 Vac

• OUT5 output SPDT 1/2 HP 8(4) A 250 Vac

13 - EN EWRC 300/500 NT

Page 14

Food safety

The device complies with standard EN13485 as follows:

- Suitable for storage.

- Application: air.

- Climate range A.

- measurement class 1 in the -25 °C and 15 °C (exclusively using Eliwell probes)

CONDITIONS OF USE - Permitted use

For safety reasons, the device must be installed and used in accordance with the instructions provided. In particular, parts carrying dangerous voltages must not be accessible under normal conditions. The device must be adequately protected from water and dust with regard to the application, and must only be accessible using tools (with the exception of the front panel). The device is suitable for use as a stand-alone unit and has been tested for safety aspects in accordance with harmonised European reference standards.

Prohibited use

Any use other than that expressly permitted is prohibited. The relays provided are of a functional type and can be 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 controller.

RESPONSIBILITY AND RESIDUAL RISKS

Eliwell Controls srl declines any liability for damage due to:

English

• installation/uses other than those expressly speciﬁed and, in particular, failure to comply with the safety requirements of established standards and/or instructions speciﬁed in this document;

• use on panels that do not provide adequate protection against electric shock, water or dust, when mounted;

• Use on panels allowing access to dangerous parts without having to use tools.

• Tampering with and/or modiﬁcation of the product.

• Installation/use on panels which are not compliant with current standards and regulations.

DISCLAIMER

This document is the exclusive property of Eliwell and cannot be reproduced or circulated unless expressly authorised by Eliwell. All possible care has been taken to ensure the accuracy of 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 the creation and preparation of this document. Eliwell reserves the right to make aesthetic or functional changes at any time without notice.

DISPOSAL

The equipment (or product) must be subjected to separate waste collection in compliance with the local legislation on waste disposal.

EWRC 300/500 NT 14 - EN

Page 15

CUT OUT

25

UM [mm]

110

SCALE 1:1

Lower Side

when printed A5 format

6.5

Page 16

Eliwell Controls s.r.l.

Via dell’Industria, 15 • Z.I. Paludi 32010 Pieve d’Alpago (BL) ITALY T +39 0437 986 111

www.eliwell.com

Technical Customer Support

T +39 0437 986 300 E techsuppeliwell@schneider-electric.com

Sales

T +39 0437 986 100 (Italy) T+39 0437 986 200 (other countries) E saleseliwell@schneider-electric.com