Configurability, Signals and alarms, Technical da – EVCO EC6759 User Manual

Page 2

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 turn out from the configuration parameters setting procedure keep pushed at the same time

for four seconds at least the keys T1 and T2 or do not operate with the keys for fifty seconds

at least (time-out exit).
ADDITIONAL INFORMATIONS
-

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

tion parameters setting procedure is refused

the modification of a parameter value which unit of measure is the hour or the

minute or the second has not immediate effect; to obtain this effect it must not be

executed during the course of the value

the modification of the parameters /6u, /7u, rP 1 ... 8 value has immediate effect; to

avoid damages to the connected users, it must be executed with the users not

connected

the modification of the parameter /Au value has not immediate effect; to obtain this

effect, after the modification turn OFF and turn ON again the instrument

the configuration parameters values get stored in a non volatile memory even if a

lack of power supply happens.

CONFIGURABILITY

CONFIGURATION PARAMETERS
LABEL MIN. MAX. U.M. ST.

PASSWORD

-90

100 ---

password (§)

It is the password that permits to gain access to the second level.
LABEL MIN. MAX. U.M. ST.

MEASURE INPUTS

/1A

-9.9 +9.9 bar

0.0

probe 1 calibration (§)

It establishes a threshold to add algebraically to the signal coming from the probe 1 (for

instance to correct the signal).
/1b

-9.9 +9.9 bar

0.0

probe 2 calibration (§)

It establishes a threshold to add algebraically to the signal coming from the probe 2 (for

instance to correct the signal).
/2

---

digital filter

It establishes a time constant to apply to the signals coming from the measure inputs, as

indicated:

0 =

0 sec.

1 =

0.4 sec.

2 =

1.2 sec.

3 =

3.0 sec.

---

decimal point

It establishes the decimal point position when a pressure gets displayed, as indicated:

0 =

the decimal point gets not displayed

1 =

the decimal point gets displayed on the dozens display

2 =

the decimal point gets displayed on the hundreds display.

/6A

-9.9 +99.9 points 0.0

lower end of scale for 4-20 mA input (it coincides with

the minimum calibration value of the transducer 1)

It establishes the lower end of scale for 4-20 mA input and it must coincide with the minimum

calibration value of the transducer 1.
/7A

-9.9 +99.9 points +7.0 upper end of scale for 4-20 mA input (it coincides with

the maximum calibration value of the transducer 1)

It establishes the upper end of scale for 4-20 mA input and it must coincide with the maximum

calibration value of the transducer 1.
/6b

-9.9 +99.9 points 0.0

lower end of scale for 4-20 mA input (it coincides with

the minimum calibration value of the transducer 2)

It establishes the lower end of scale for 4-20 mA input and it must coincide with the minimum

calibration value of the transducer 2.
/7b

-9.9 +99.9 points +7.0 upper end of scale for 4-20 mA input (it coincides with

the maximum calibration value of the transducer 2)

It establishes the upper end of scale for 4-20 mA input and it must coincide with the maximum

calibration value of the transducer 2.
/6u

-9.9 +99.9 bar

0.0

pressure value corresponding to 0 V of the analog output

It establishes the pressure value corresponding to 0 V of the analog output according with the

modality established with the parameter /Au.
/7u

-9.9 +99.9 bar

+99.9 pressure value corresponding to 10 V of the analog out-

put

It establishes the pressure value corresponding to 10 V of the analog output according with the

modality established with the parameter /Au.
/Au

---

pressure to associate to the analog output

It establishes the pressure to associate to the analog output, as indicated:

0 =

pressure read by the probe 1

1 =

pressure read by the probe 2.

LABEL MIN. MAX. U.M. ST.

ON-OFF PRESSURE REGULATOR ASSOCIATED RESPEC-

TIVELY TO THE FIRST WORKING SETPOINT AND TO THE

OUTPUT K 1, ... AND TO THE EIGHTH WORKING SETPOINT

AND TO THE OUTPUT K 8

r 0

+0.1 +9.9 bar

+5.0 hysteresis (differential) (§)

It establishes the hysteresis (differential) relative to the working setpoints.
rC1

-9.9 +99.9 bar

+10.0 first working setpoint

It establishes the pressure associated to the output K 1 according with the modality estab-

lished with the parameter rP1.
rC2

-9.9 +99.9 bar

+10.0 second working setpoint

It establishes the pressure associated to the output K 2 according with the modality estab-

lished with the parameter rP2.

rC3

-9.9 +99.9 bar

+10.0 third working setpoint

It establishes the pressure associated to the output K 3 according with the modality estab-

lished with the parameter rP3.
rC4 -9.9 +99.9 bar +10.0 fourth working setpoint
It establishes the pressure associated to the output K 4 according with the modality estab-

lished with the parameter rP4.
rC5

-9.9 +99.9 bar

+10.0 fifth working setpoint

It establishes the pressure associated to the output K 5 according with the modality estab-

lished with the parameter rP5.
rC6

-9.9 +99.9 bar

+10.0 sixth working setpoint

It establishes the pressure associated to the output K 6 according with the modality estab-

lished with the parameter rP6.
rC7

-9.9 +99.9 bar

+10.0 seventh working setpoint

It establishes the pressure associated to the output K 7 according with the modality estab-

lished with the parameter rP7.
rC8

-9.9 +99.9 bar

+10.0 eighth working setpoint

It establishes the pressure associated to the output K 8 according with the modality estab-

lished with the parameter rP8.
rd1

---

“high or low pressure” functioning of the output K 1

It establishes the output K 1 functioning, as indicated:

0 =

“high pressure” functioning

1 =

“low pressure” functioning.

rd2

---

“high or low pressure” functioning of the output K 2

It has the same significance of the parameter rd1.
rd3

---

“high or low pressure” functioning of the output K 3

It has the same significance of the parameter rd1.
rd4

---

“high or low pressure” functioning of the output K 4

It has the same significance of the parameter rd1.
rd5

---

“high or low pressure” functioning of the output K 5

It has the same significance of the parameter rd1.
rd6

---

“high or low pressure” functioning of the output K 6

It has the same significance of the parameter rd1.
rd7

---

“high or low pressure” functioning of the output K 7

It has the same significance of the parameter rd1.
rd8

---

“high or low pressure” functioning of the output K 8

It has the same significance of the parameter rd1.
rP1

---

pressure to associate to the output K 1

It establishes the pressure to associate to the output K 1, as indicated:

0 =

pressure read by the probe 1

1 =

pressure read by the probe 2.

rP2

---

pressure to associate to the output K 2

It has the same significance of the parameter rP1.
rP3

---

pressure to associate to the output K 3

It has the same significance of the parameter rP1.
rP4

---

pressure to associate to the output K 4

It has the same significance of the parameter rP1.
rP5

---

pressure to associate to the output K 5

It has the same significance of the parameter rP1.
rP6

---

pressure to associate to the output K 6

It has the same significance of the parameter rP1.
rP7

---

pressure to associate to the output K 7

It has the same significance of the parameter rP1.
rP8

---

pressure to associate to the output K 8

It has the same significance of the parameter rP1.
r 4

---

kind of hysteresis (kind of differential)

It establishes the kind of hysteresis (kind of differential), as indicated:

0 =

asymmetrical

1 =

symmetrical.

LABEL MIN. MAX. U.M. ST.

PRESSURE TO DISPLAY

/AL

---

pressure to display during the normal functioning

It establishes the pressure to display during the normal functioning, as indicated:

0 =

pressure read by the probe 1

1 =

pressure read by the probe 2.

LABEL MIN. MAX. U.M. ST.

RELAY OUTPUTS PROTECTION

C 0

999 sec. 0

disabling time to the outputs activation from the instru-

ment start

It establishes the time that disables the outputs activation from the moment of the instrument

start.
C 1

999 sec. 0

disabling time to the output activation from the previous

activation

It establishes the time that disables the output activation from the moment of the previous

output activation.
C 2

999 sec. 0

disabling time to the output activation from the previous

deactivation

It establishes the time that disables the output activation from the moment of the previous

output deactivation.

C 3 0

---

outputs status during a probe failure alarm

It establishes the status the outputs are forced during a probe failure alarm according

to the modality established with parameters belonging to family rP, as indicated:

0 = during a probe failure alarm the outputs will be forced OFF

1 = during a probe failure alarm output K8 will be forced ON; the remaining outputs

will be forced OFF.

ADDITIONAL INFORMATIONS
-

the symbol (§) indicates that the parameter is of the first level.

SIGNALS AND ALARMS

SIGNALS
If the LED L1 ... 8 is turned ON it means that the output K 1 ... 8 is activated.
If the LED L1 ... 8 flashes it means that a count of a disabling time to the output K 1 ... 8

activation is running (see the parameters C 0, C 1 and C 2).
If the instrument displays the indication “888” and the LED L1, ... and L8 are turned

ON it means that the autotest is running.
ALARMS
If the instrument displays the indication “E 2” (corrupted memory data alarm) it means that

there is a corruption of the configuration data in the memory (turn OFF and turn ON again the

instrument: if to the turning ON again the alarm does not disappear the instrument must be

replaced); during this alarm the access to the configuration parameters setting procedure is

refused, the outputs K 1 ... 8 get forced to the status OFF and the analog output signal is 0 V.
If the instrument displays the indication “E0A” (probe 1 failure alarm) it means that: the kind

of connected probe 1 is not proper (verify the kind of connected probe 1), the probe 1 is faulty

(verify the probe 1 integrity), there is a mistake in the instrument-probe 1 connection (verify

the instrument-probe 1 connection integrity), the pressure read by the probe 1 is outside the

limits permitted by the probe 1 in use (verify that the pressure near the probe 1 be inside the

limits permitted by the probe 1); during this alarm if the parameters rP1 ... 8 have value 0 the

outputs K 1 ... 8 get forced to the status established with the parameter C 3 and if the param-

eter /Au has value 0 the analog output signal is 0 V.
If the instrument displays the indication “E0b” (probe 2 failure alarm) it means that there is

one of the faults saw in the previous case but referred to the probe 2; during this alarm if the

parameters rP1 ... 8 have value 1 the outputs K 1 ... 8 get forced to the status established with

the parameter C 3 and if the parameter /Au has value 1 the analog output signal is 0 V.
If the instrument displays the pressure read by the probe 2 and the indication “E0A” every four

seconds (probe 1 failure alarm) it means that there is one of the faults saw in the previous

case but referred to the probe 1 and that the pressure read by the probe 1 is associated to a

relay output; during this alarm if the parameters rP1 ... 8 have value 0 the outputs K 1 ... 8 get

forced to the status established with the parameter C 3 and if the parameter /Au has value 0 the

analog output signal is 0 V.
If the instrument displays the pressure read by the probe 1 and the indication “E0b” every four

seconds (probe 2 failure alarm) it means that there is one of the faults saw in the previous

case but referred to the probe 2 and that the pressure read by the probe 2 is associated to a

relay output; during this alarm if the parameters rP1 ... 8 have value 1 the outputs K 1 ... 8 get

forced to the status established with the parameter C 3 and if the parameter /Au has value 1 the

analog output signal is 0 V.

TECHNICAL DA

TECHNICAL DAT

TECHNICAL DATA
Case:

plastic grey (PP0), self-extinguishing.

Size:

106 x 90 x 58 mm (4.17 x 3.54 x 2.28 in., 6 DIN modules).

Installation:

on DIN EN 50022 standard rail installation according with

DIN 43880 norms.

Type of protection:

IP 40.

Connections:

extractable screw terminal blocks with pitch 5 mm (0.19

in., power supply, measure inputs, relay outputs and ana-

log output) for cables up to 2.5 mm² (0.38 in.²).

Ambient temperature:

from 0 to +60 °C (+32 to +140 °F, 10 ... 90 % of not con-

densing relative humidity).

Power supply:

230 Vac, 50/60 Hz, 3 VA.

Insulation class:

II.

Measure inputs:

2 for 2 wires 4-20 mA pressure transducers (Ri 56 Ohm);

at terminal 87 and 91 +12 V (+50 %, -15 %) are available

to supply the transducers.

Working range:

configurable.

Setting range:

from -9.9 to +99.9 bar.

Resolution:

configurable for 0.1 or 1 or 10 bar.

Display:

3-digit display 12.5 mm (0.49 in.) high red LED display

with automatic decimal point and minus sign, relay out-

puts status indicators.

Outputs:

eight NO contact 6 (2) A @ 250 Vac relays for regulation

loads management and one 0-10 V analog output

configurable to be associated to the pressure read by the

probe 1 or 2.