EVCO EC6759 User Manual

Ec 6-759

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EC 6-759

ON-OFF eight relay outputs digital pressure

controller with analog output

Operating instructions
Version 1.01 of 30th September 2004
File ec6759_eng_v1.01.pdf
PT
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 INFORMA

GENERAL INFORMATIONS

TIONS

WHAT IS THE USE
EC 6-759 is an ON-OFF eight relay outputs digital pressure controller with analog output.
In factory the instrument gets preset to accept at the measure inputs 2 wires 4-20 mA pres-

sure transducers (it is possible to set the reading scale).
Some parameters permit to manage the analog output according with one’s requirements, to

set each relay output for “high or low pressure” functioning, to establish the pressure to asso-

ciate to each relay output (pressure read by the probe 1 or pressure read by the probe 2).
EC 6-759 is available in the 106 x 90 mm (4.17 x 3.54 in., 6 DIN modules) case and it is studied

for DIN standard rail installation.

GETTING ST

GETTING STAR

ARTED

TED

INSTALLATION
EC 6-759 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 inter-

nal overheating of the instrument

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

(carpets, covers, etc.), heating sources (radiators, hot air ducts, etc.), locations

subject 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 6-759 is provided with six extractable screw terminal blocks for cables up to 2.5 mm²

(0.38in.², for the connection to the power supply, measure inputs, relay outputs and analog

output) located on the instrument frontal panel (the connections 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 61 and 65 are derived to the local power supply, even if the instrument is

apparently turned off

give the relay outputs a protection able to protect them 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

Every Control (see the chapter BUILDER DATA).

Fig. 1

f6-759.wmf

USE

PRELIMINARY INFORMATIONS
After derived the connections related in Fig. 5, the instrument executes an autotest.
Passed eight seconds the instrument automatically moves to the normal functioning.

Fig. 2

iu6758.wmf

During the normal functioning the instrument displays the pressure read by the probe 1, ex-

cept what established with the parameter /AL.
If an alarm should be active the instrument displays the alarm code as long as the cause that

has given it does not disappear (see the chapter SIGNALS AND ALARMS).
EC 6-759 is provided 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 first setpoint, ... . the output K 8 to the eighth, they remain

activated continuously as long as the pressure read by the probe 1 reaches the working setpoints

and when it rises above (if the outputs were set for “high pressure” functioning) or it falls

below (if the outputs were set for “low pressure” functioning) the respective working setpoint

of the hysteresis value (differential) the outputs get reactivated, except what established with

the parameters of the family rP.
To display the pressure read by the probe 2 keep pushed the key T3.
ANALOG OUTPUT
The 0-10 V analog output is associated to the pressure read by the probe 1, except what

established with the parameter /Au.
The analog output signal is proportional to the pressure read by the probe 1 in every point

between the pressure values corresponding to 0 and 10 V.
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.
To modify the parameter 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 de-

creased or increased more quickly); after the modification release the key T3 last (to the

release of the key T3 the instrument displays the label of the parameter again).
To gain access to the second level enter inside the first level and select the label PA.
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 -19 (keeping

pushed the key T1 or T2 the value gets decreased or increased more quickly): after the modi-

fication release the key T3 last (to the release of the key T3 the instrument displays the label PA

again); keep pushed at the same time for four seconds at least the keys T1 and T2 (passed four

seconds the instrument displays the first parameter of the second level).
To select a parameter of the second level push and release over and over the key T1 or T2 as

DIMENSIONAL DA

DIMENSIONAL DAT

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

Fig. 3

ds66me.wmf

INST

INSTALLA

ALLA

ALLATION

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

ms66m.wmf

ELECTRICAL CONNECTION

CONNECTIONS TO DERIVE
Instance of typical application.

BUILDER DA

BUILDER DAT

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

c6-759e.wmf

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