Evco EC6120 User Manual download pdf

EC 6-120EC 6-120

EC 6-120

ON-OFF digital thermostat for compressor

and defrost (by stopping compressor) man-

agement

Operating instructions

Version 1.00 of November the twenty-seventh 2002

File ec6120e_v1.00.pdf

IMPORTANT:

The use of this new instrument is easy; but for safety reasons, it is

important read these instructions carefully before the installation or

before the use and follow all additional informations.

It is very important keep these instructions with the instrument for future

consultations.

ENGLISH

GENERAL INFORMAGENERAL INFORMA

GENERAL INFORMA

TIONSTIONS

TIONS

WHAT IS THE USE

EC 6-120 is an ON-OFF digital thermostat studied for refrigerating systems management through

the compressor and defrost (by stopping compressor) management.

In factory the instrument gets preset to accept at the measure input PTC/NTC probes used in

refrigeration field at the moment.

Some parameters permit to set the thermostat to protect the compressor against overloads

due to several starts repeated in a short time, to manage the defrost according with one’s

requirements, to signal working conditions outside the safety limits.

EC 6-120 is available in the 53 x 90 mm (2.08 x 3.54 in., 3 DIN modules) case and it is studied

for DIN standard rail installation.

GETTING STGETTING ST

GETTING ST

ARAR

TEDTED

TED

INSTALLATION

EC 6-120 was studied for DIN EN 50022 standard rail installation according with DIN 43880

norms (the overall dimensions are related in Fig. 3, the fixing system suggested by the builder

is related in Fig. 4).

ADDITIONAL INFORMATIONS

- verify if the using conditions (ambient temperature, humidity, etc.) are within the

limits indicated by the builder (see the chapter TECHNICAL DATA)

- install the instrument in a location with a suitable ventilation, to avoid the internal

overheating of the instrument

- do not install the instrument near surfaces that can to obstruct the air-grating (car-

pets, covers, etc.), heating sources (radiators, hot air ducts, etc.), locations sub-

ject to direct sunlight, rain, humidity, excessive dust, mechanical vibrations or

bumps, devices with strong magnetos (microwave ovens, big speakers, etc.)

- according with the safety norms, the protection against possible contacts with

electrical parts and parts protected with functional insulation only must be ensured

through a correct installation procedure of the instrument; all parts that ensure the

protection must be fixed so that they can not be removed if not with a tool.

ELECTRICAL CONNECTION

EC 6-120 is provided with three screw terminal blocks for cables up to 2.5 mm² (0.38 in.², for

the connection to the power supply, measure input and output), it is provided with one three

poles single line male connector (for the connection to the remote indicator) and it is provided

with one five poles single line female connector (for the connection to the CLONE configurer/

cloner and RICS supervision systems), located on the instrument frontal panel (the connec-

tions to derive are related in Fig. 5 and they are checkable on the polyester label stuck on the

instrument case).

ADDITIONAL INFORMATIONS

- if the instrument is brought from a cold to a warm location, the humidity may

condense inside the instrument; wait about an hour before supply the instrument

- verify if the operating power supply voltage, electrical frequency and power of

the instrument correspond to the local power supply (see the chapter TECHNICAL

DATA)

- do not supply more instruments with the same transformer

- if the instrument is installed on a vehicle, its power supply must be derived di-

rectly from the battery of the vehicle

- give the instrument a protection able to limit the current absorbed in case of

failure

- the instrument remains connected to the local power supply as long as the termi-

nals 75 and 77 are derived to the local power supply, even if the instrument is

apparently turned off

- give the probe a protection able to insulate it against possible contacts with metal

parts or use insulated probes

- give the output a protection able to protect it against short circuit and overload

- do not try to repair the instrument; for the repairs apply to highly qualified staff

- if you have any questions or problems concerning the instrument please consult

Fig. 1

f6-120.wmf

Every Control (see the chapter BUILDER DATA).

USEUSE

USE

PRELIMINARY INFORMATIONS

After derived the connections related in Fig. 5, during the normal functioning the instrument

displays the temperature read by the cabinet probe.

If an alarm should be active the instrument displays the alarm code flashing and the buzzer

utters an intermittent beep as long as the cause that has given it does not disappear (see the

chapter SIGNALS AND ALARMS); pressure on the key T1 during an alarm permits to silence

the buzzer.

EC 6-120 is provided with one working setpoint and with some configuration parameters that

get stored in a non volatile memory and that permit to set the instrument according with one’s

requirements (see the chapter CONFIGURABILITY).

The output K 1 is associated to the compressor and to the working setpoint, it remains acti-

vated continuously as long as the temperature read by the cabinet probe reaches the working

setpoint and when it rises above the working setpoint of the hysteresis value (differential) the

output gets reactivated, except during a defrost.

Passed the defrost interval from the moment of the instrument start or from the moment in

which the instrument activates a defrost the instrument automatically activates the following

defrost.

Passed the defrost length from the moment in which the instrument activates a defrost the

defrost ends; during a defrost the output K 1 gets forced to the status OFF.

Keeping pushed the key T2 for four seconds the instrument activates a defrost.

WORKING SETPOINT SETTING (WORKING TEMPERATURE)

To modify the working setpoint value keep pushed the key T3 (the instrument displays the

actual value) and at the same time push and release over and over the key T1 or T2 as long as

the instrument displays the desired value (keeping pushed the key T1 or T2 the value gets

decreased or increased more quickly): after the modification release the key T3 last; during the

pressure of the key T3 the LED L1 flashes quickly to indicate that a working setpoint setting

procedure is running (to the release of the key T3 the instrument automatically turns out from

the working setpoint setting procedure).

ADDITIONAL INFORMATIONS

- for the whole period of a corrupted memory data alarm the access to the working

setpoint setting procedure is refused

- the working setpoint is programmable within the limits established with the param-

eters r1 and r2

- the working setpoint value gets stored in a non volatile memory even if a lack of

power supply happens.

CONFIGURATION PARAMETERS SETTING

Configuration parameters are arranged on two levels, to protect the most tricky settings against

undesirable violations and they are arranged in families that can be recognized through the

initial letter of the label.

To gain access to the first level keep pushed at the same time for four seconds at least the keys

T1 and T2 (passed four seconds the instrument displays the label PA).

To select a parameter of the first level push and release over and over the key T1 or T2 as long

as the instrument displays the label of the desired parameter.

Fig. 2

iu6120.wmf

DIMENSIONAL DADIMENSIONAL DA

DIMENSIONAL DA

OVERALL DIMENSIONS

The dimensions are expressed in millimetres and inches (third-scale drawing).

Fig. 3

ds63me.wmf

INSTINST

INST

ALLAALLA

ALLA

TIONTION

TION

WITH THE FIXING SYSTEM SUGGESTED BY THE BUILDER

On DIN EN 50022 standard rail according with DIN 43880 norms (third-scale drawing).

Fig. 4

ms63m.wmf

ELECTRICAL CONNECTIONELECTRICAL CONNECTION

ELECTRICAL CONNECTION

CONNECTIONS TO DERIVE

Instance of typical application.

BUILDER DABUILDER DA

BUILDER DA

EVERY CONTROL S.r.l.

Via Mezzaterra 6, 32036 Sedico Belluno ITALY

Phone 0039/0437852468 (a.r.) Fax 0039/043783648

Internet addresses

e-mail: [email protected]

http://www.everycontrol.it

TO BE CAREFUL

This publication exclusively belongs to EVERY CONTROL and shall not be reproduced and distributed if not expressly authorized by the same EVERY CONTROL.

EVERY CONTROL does not assume any responsibility in order to the characteristics, to the technical data and to the possible mistakes related herein or deriving from the use of the same.

EVERY CONTROL can not be considered responsible for damages caused from the inobservance of the additional informations.

EVERY CONTROL reserves the right to make any modification without prior notice and at any time without prejudice the basic functioning and safety characteristics.

Fig. 5

c6-120e.wmf

1 2

Summary of Contents

Page 1 - EC 6-120

EC 6-120EC 6-120EC 6-120EC 6-120EC 6-120ON-OFF digital thermostat for compressorand defrost (by stopping compressor) man-agementOperating instructions

Page 2 - ADDITIONAL INFORMATIONS

To modify the parameter value keep pushed the key T3 (the instrument displays the actualvalue) and at the same time push and release over and over the