Configurability, Signals and alarms, Technical da – EVCO EC3132 User Manual

Page 2: How to order

the second working setpoint is programmable within the limits established with the

parameters rB1 and rB2

if the parameter rA5 has value 1 the first working setpoint can not be modified as

long as the parameter rA5 gets set to 0

if the parameter rB5 has value 1 the second working setpoint can not be modified as

long as the parameter rB5 gets set to 0

the working setpoint values get 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.
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

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

lack of power supply happens.

CONFIGURABILITY

WORKING SETPOINT
LABEL MIN. MAX. U.M. ST.

WORKING SETPOINT

rA1

rA2

first working setpoint

If the parameter -/0 has value 1 or 2 it establishes the temperature associated to the output K

1, if the parameter -/0 has value 3 it establishes the temperature associated to the outputs K 1

and K2.

rB1

rB2

second working setpoint

It establishes the temperature associated to the output K 2.
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.

KIND OF REGULATOR

-/0

---

kind of regulator

It establishes the kind of regulator, as indicated:

1 =

first working setpoint independent and the second relative to the first

2 =

first and second working setpoint independent

3 =

“neutral zone”.

LABEL MIN. MAX. U.M. ST.

MEASURE INPUT

---

(*)

kind of probe

It establishes the kind of probe that the instrument must recognize to its measure input, as

indicated:

01 = PTC probe

03 = NTC probe

10 = “J” thermocouple

11 = “K” thermocouple

20 = 3 wires Pt 100 probe 21 = 2 wires Pt 100 probe

30 = 2 and 3 wires 4-20 mA temperature transducer

31 = 2 and 3 wires 0-20 mA temperature transducer.
/1

-9

+10 °C

calibration (§)

It establishes a threshold to add algebraically to the signal coming from the measure input (for

instance to correct the signal).
/2

---

digital filter

It establishes a time constant to apply to the signal coming from the measure input, as indi-

cated:

0 =

0 sec.

1 =

0.4 sec.

2 =

1.2 sec.

3 =

3.0 sec.

4 =

8.0 sec.

5 =

19.8 sec.

6 =

48.0 sec.

---

leading zeroes displaying

It establishes if to display the leading zeroes, as indicated:

0 =

the leading zeroes get not displayed

1 =

the leading zeroes get displayed.

---

decimal point

It establishes the resolution with which the temperature gets displayed, as indicated:

0 =

the temperature gets displayed with the resolution of the unit of measure

1 =

the temperature gets displayed with the resolution of 1/10 of the unit of measure.

-99

+999 points -20

lower end of scale for 0/4-20 mA input (it coincides with

the minimum calibration value of the transducer)

It establishes the lower end of scale for 0/4-20 mA input and it must coincide with the mini-

mum calibration value of the transducer.
/7

-99

+999 points +80 upper end of scale for 0/4-20 mA input (it coincides with

the maximum calibration value of the transducer)

It establishes the upper end of scale for 0/4-20 mA input and it must coincide with the maxi-

mum calibration value of the transducer.
LABEL MIN. MAX. U.M. ST.

ON-OFF TEMPERATURE REGULATOR ASSOCIATED TO THE

FIRST WORKING SETPOINT AND TO THE OUTPUT K 1

rA0

-99

+99 °C

(*)

hysteresis (differential) (§)

It establishes the hysteresis (differential) relative to the working setpoint.
If the parameter -/0 has value 3 the parameter rA0 establishes the “neutral zone” value.
rA1

-99

+999 °C

(*)

minimum working setpoint programmable

It establishes the minimum working setpoint programmable; the instrument automatically veri-

fies if the value established with the parameter rA1 is below the maximum working setpoint

programmable established with the parameter rA2.
rA2

-99

+999 °C

(*)

maximum working setpoint programmable

It establishes the maximum working setpoint programmable; the instrument automatically

verifies if the value established with the parameter rA2 is above the minimum working setpoint

programmable established with the parameter rA1.
rA3

---

“cooling” or “heating” functioning

It establishes the output functioning, as indicated:

0 =

“cooling” functioning

1 =

“heating” functioning.

rA4

---

kind of hysteresis (kind of differential)

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

0 =

asymmetrical

1 =

symmetrical.

rA5

---

locking of the working setpoint modification

It establishes if to prevent the modification of the working setpoint, as indicated:

0 =

the working setpoint can be modified

1 =

the working setpoint can not be modified as long as the parameter rA5 gets set to 0.

LABEL MIN. MAX. U.M. ST.

ON-OFF TEMPERATURE REGULATOR ASSOCIATED TO THE

SECOND WORKING SETPOINT AND TO THE OUTPUT K 2

rB0

-99

+99 °C

(*)

hysteresis (differential) (§)

It has the same significance of the parameter rA0.
rB1

-99

+999 °C

(*)

minimum working setpoint programmable

It has the same significance of the parameter rA1.
rB2

-99

+999 °C

(*)

maximum working setpoint programmable

It has the same significance of the parameter rA2.
rB3

---

“cooling” or “heating” functioning

It has the same significance of the parameter rA3.
rB4

---

kind of hysteresis (kind of differential)

It has the same significance of the parameter rA4.
rB5

---

locking of the working setpoint modification

It has the same significance of the parameter rA5.
LABEL MIN. MAX. U.M. ST.

OUTPUT K 1 PROTECTION

CA0 0

999 sec. 0

disabling time to the output activation from the instru-

ment start

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

start.
CA1 0

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.
CA2 0

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.
CA3 0

---

output status during a probe failure alarm

It establishes the status to which the output gets forced during a probe failure alarm, as indi-

cated:

0 =

during a probe failure alarm the output gets forced to the status OFF

1 =

during a probe failure alarm the output gets forced to the status ON.

CA4 0

---

disabling time to the output activation and deactivation

It establishes if to disable the output activation and deactivation for a fixed time, as indicated:

0 =

inactive

1 =

the output activation and deactivation get disabled for 3 sec.

LABEL MIN. MAX. U.M. ST.

OUTPUT K 2 PROTECTION

CB0 0

999 sec. 0

disabling time to the output activation from the instru-

ment start

It has the same significance of the parameter CA0.
CB1 0

999 sec. 0

disabling time to the output activation from the previous

activation

It has the same significance of the parameter CB1.
CB2 0

999 sec. 0

disabling time to the output activation from the previous

deactivation

It has the same significance of the parameter CB2.
CB3 0

---

output status during a probe failure alarm

It has the same significance of the parameter CB3.
CB4 0

---

disabling time to the output activation and deactivation

It has the same significance of the parameter CB4.
LABEL MIN. MAX. U.M. ST.

TEMPERATURE ALARM REGULATOR ASSOCIATED TO THE

FIRST TEMPERATURE ALARM

AA0 (*)

+99 °C

(*)

hysteresis (differential)

It establishes the hysteresis (differential) relative to the parameter AA1.
AA1 -99

+999 °C

alarm setpoint

It establishes the temperature to which the temperature alarm gets activated according with

the modality established with the parameter AA4.
AA3 0

999 min. 0

disabling time to the alarm activation from the instru-

ment start

It establishes the time that disables the temperature alarm activation from the moment of the

instrument start.
AA4 1

---

kind of alarm

It establishes the kind of temperature alarm that the instrument must manage, as indicated:

1 =

the temperature alarm never gets activated

2 =

absolute lower temperature alarm

3 =

absolute upper temperature alarm

4 =

lower temperature alarm relative to the first working setpoint

5 =

upper temperature alarm relative to the first working setpoint

6 =

lower temperature alarm relative to the first working setpoint with automatic

recomputation and reenabling

7 =

upper temperature alarm relative to the first working setpoint with automatic

recomputation and reenabling.

LABEL MIN. MAX. U.M. ST.

TEMPERATURE ALARM REGULATOR ASSOCIATED TO THE

SECOND TEMPERATURE ALARM

Ab0 (*)

+99 °C

(*)

hysteresis (differential)

It has the same significance of the parameter AA0.
Ab1 -99

+999 °C

alarm setpoint

It has the same significance of the parameter AA1.
Ab3 0

999 min. 0

disabling time to the alarm activation from the instru-

ment start

It has the same significance of the parameter AA3.
Ab4 1

---

kind of alarm

It has the same significance of the parameter AA4.
LABEL MIN. MAX. U.M. ST.

CONNECTION IN A SERIAL NETWORK WITH EVCOBUS

PROTOCOL COMMUNICATION

---

instrument address

It establishes the address to which the instrument (slave) answers when it is connected to a

serial network with EVCOBUS protocol communication managed from a master (for instance a

Personal Computer).
L2

---

instrument group

It establishes the group to which the instrument (slave) answers when it is connected to a

serial network with EVCOBUS protocol communication managed from a master (for instance a

Personal Computer).
ADDITIONAL INFORMATIONS
-

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

if the parameter -/0 has value 3 the parameters of the family rB do not exist

the symbol (*) indicates that the value depends from the measure input presetting

requested

if the instrument is preset to accept at the measure input “J”/”K” thermocouples

the parameter /5 does not exist

if the instrument is not preset to accept at the measure input 2 and 3 wires 0/4-20

mA temperature transducers the parameters /6 and /7 do not exist.

SIGNALS AND ALARMS

SIGNALS
If the LED L1 is turned ON it means that the output K 1 is activated.
If the LED L2 is turned ON it means that the output K 3 is activated.
If the LED L1 flashes it means that a count of a disabling time to the output K 1 activation is

running (see the parameters CA0, CA1, CA2 and CA4).
If the LED L2 flashes it means that a count of a disabling time to the output K 2 activation is

running (see the parameters CB0, CB1, CB2 and CB4).
If the instrument displays the indication “≡≡≡

≡≡≡

” it means that the working setpoint can not be

modified (see the parameters rA5 and rB5).
ALARMS
If the instrument displays the indication “E2” flashing and the buzzer utters an intermittent

beep (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 working setpoint setting and the configuration parameters setting procedures is refused

and all outputs get forced to the status OFF.
If the instrument displays the indication “E0” flashing and the buzzer utters an intermittent

beep (probe failure alarm) it means that: the kind of connected probe is not proper (see the

parameter /0), the probe is faulty (verify the probe integrity), there is a mistake in the instru-

ment-probe connection (verify the instrument-probe connection integrity), the temperature

read by the probe is outside the limits permitted by the probe in use (verify that the tempera-

ture near the probe be inside the limits permitted by the probe); during this alarm the output K

1 gets forced to the status established with the parameter CA3 and the output K 2 gets forced

to the status established with the parameter CB3.
If the instrument displays the indication “E0C” flashing and the buzzer utters an intermittent

beep (cold junction/third wire failure alarm) it means that, if the instrument is preset to

accept at the measure input “J”/”K” thermocouples there is a mistake in the cold junction

adjustment circuit (the instrument must be replaced), if the instrument is preset to accept at

the measure input 2/3 wires Pt 100 probes and it is set to recognize to its measure input 3

wires Pt 100 probes the third wire of the probe is not connected (verify the instrument-probe

connection integrity); during this alarm the output K 1 gets forced to the status established

with the parameter CA3 and the output K 2 gets forced to the status established with the

parameter CB3.
If the instrument displays the indication “AL1” flashing alternated to the temperature read by

the probe and the buzzer utters an intermittent beep (first temperature alarm) it means that

the temperature read by the probe is outside the limit established with the parameter AA1 (see

the parameters AA0, AA1 and AA4); inactive.
If the instrument displays the indication “AL2” flashing alternated to the temperature read by

the probe and the buzzer utters an intermittent beep (second temperature alarm) it means that

the temperature read by the probe is outside the limit established with the parameter Ab1 (see

the parameters Ab0, Ab1 and Ab4); inactive.
If the instrument displays the indication “999” flashing (end of scale display) it means that the

temperature read by the probe is outside the working range permitted by the instrument (verify

that the temperature near the probe be inside the limits permitted by the instrument); inactive.
ADDITIONAL INFORMATIONS
-

the alarm codes are related in order of precedence.

TECHNICAL DA

TECHNICAL DAT

TECHNICAL DATA
Case:

plastic black (PC-ABS), self-extinguishing.

Size:

74 x 32 x 65 mm (2.91 x 1.25 x 2.55 in.).

Installation:

panel mounting, panel cutout 71 x 29 mm (2.79 x 1.14 in.),

with the equipped screw or spring brackets.

Type of protection:

IP 54.

Connections:

screw terminal blocks with pitch 5 mm (0.19 in., power

supply, measure input and outputs) for cables up to 2.5

mm² (0.38 in.²), five poles single line male connector with

pitch 5.08 mm (0.2 in., serial port).

Ambient temperature:

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

densing relative humidity).

Power supply:

12 Vac/dc or 12-24 Vac/dc, 50/60 Hz, 1.5 VA.

Insulation class:

II.

Alarm buzzer:

incorporated.

Measure inputs:

1 configurable, hardware depending, for PTC/NTC probes

or “J”/”K” thermocouples or 2/3 wires Pt 100 probes or 2

and 3 wires 0/4-20 mA temperature transducers (Ri 56

Ohm); at terminal 12 +12 V (+30 %, -20 %) are available to

supply the transducer.

Working range:

from -50 to +150 °C (-58 to +302 °F) for PTC probe, from

-40 to +110 °C (-40 to +230 °F) for NTC probe, from -99 to

+700 °C (-99 to +999 °F) for “J” thermocouple, from

-99 to +999 °C (-99 to +999 °F) for “K” thermocouple, from

-99 to +600 °C (-99 to +999 °F) for 2/3 wires Pt 100 probes,

configurable for 2 and 3 wires 0/4-20 mA temperature trans-

ducers.

Setting range:

from -99 to +999 °C (-99 to +999 °F).

Resolution:

configurable for 0.1 (except the instruments preset to ac-

cept at the measure input “J”/”K” thermocouples) or 1 °C

(1 °F).

Display:

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

with automatic decimal point and minus sign, output sta-

tus indicators.

Outputs:

two 6 (3) A @ 250 Vac relays (NO and change-over con-

tact) for regulation loads management.

Serial port:

TTL with EVCOBUS protocol communication, for the con-

nection to the CLONE configurer/cloner and RICS supervi-

sion systems.

HOW TO ORDER

CODING SYSTEM
Instrument name:

EC 3-132.

Desired measure input:

P (for PTC/NTC probes),

J (for “J”/”K” thermocouples),

C (for 2/3 wires Pt 100 probes),

I (for 2 and 3 wires 0/4-20 mA temperature transducers).

Desired power supply:

012 (12 Vac/dc),

024 (12-24 Vac/dc).

Options:

custom configuration, temperature display in °F, SSR out-

puts.