Signals and alarms, Technical da – EVCO EC6294 User Manual

Page 4

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number of locking digital input alarms enough to give

the instrument locking (®)

It is significant exclusively if the parameter i2 has value 2, it establishes the number of locking

digital input alarms enough to give the instrument locking.
If the parameter i3 has value 0 the instrument locking never happens.
The increasing of the locking digital input alarms counter that gives the instrument locking

happens in the moment of the locking digital input activation.
i4

240 (**) 0

time required to clear the locking digital input alarms

counter (®)

It is significant exclusively if the parameter i2 has value 2, it establishes the time that must

pass from the moment of the previous locking digital input deactivation in order that the lock-

ing digital input alarms counter get cleared.
i5

(**) 0

disabling time to the compressor output activation from

the previous locking digital input deactivation (®)

It is significant exclusively if the parameter i2 has value 2, it establishes the time that disables

the compressor output activation from the moment of the previous locking digital input deac-

tivation.
LABEL MIN. MAX. U.M. ST.

USER-OUTPUT CONFIGURATION

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user to associate to the output K 1A (®)

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

0 =

compressor

1 =

defrost

2 =

evaporator fans

3 =

cabinet light

4 =

alarm

5 =

ON-OFF

6 =

reserved.

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user to associate to the output K 2A (®)

It has the same significance of the parameter u1.
u3

---

user to associate to the output K 4A (®)

It has the same significance of the parameter u1.
u4

---

user to associate to the output K 3A (®)

It has the same significance of the parameter u1.
u5

---

user to associate to the output K 5A

It has the same significance of the parameter u1.
LABEL MIN. MAX. U.M. ST.

CONNECTION IN A SERIAL NETWORK WITH EVCOBUS

PROTOCOL COMMUNICATION

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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

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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).
L3

240 sec. 30

time-out link

It establishes for which time interval the instrument must store a connection to a serial net-

work with EVCOBUS protocol communication from the moment in which an interruption of the

connection happens.
L4

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baud rate

It establishes the speed with which the data get transmitted in a serial network with EVCOBUS

protocol communication, as indicated:

0 =

1,200 baud

1 =

2,400 baud

2 =

4,800 baud

3 =

9,600 baud.

LABEL MIN. MAX. U.M. ST.

CONNECTION IN A SERIAL NETWORK WITH EVCONET

PROTOCOL COMMUNICATION

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instrument functioning in the network (®)

It establishes the instrument functioning when it is connected to a serial network with EVCONET

protocol communication, as indicated:

0 =

the instrument is not enabled to work in the network

1 =

the instrument is set as master instrument

2 =

the instrument is set as slave instrument.

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instrument address (®)

It is significant exclusively if the parameter n0 has value 1 or 2, it establishes the instrument

address when it is connected to a serial network with EVCONET protocol communication, as

indicated:

0 =

master instrument address

1 =

first slave instrument address

2 =

second slave instrument address

3 =

third slave instrument address

4 =

fourth slave instrument address

5 =

fifth slave instrument address

6 =

sixth slave instrument address

7 =

seventh slave instrument address

8 =

eighth slave instrument address.

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enabling to work as slave instrument (§) (®)

It is significant exclusively if the parameter n0 has value 2 and if the parameter n1 has values

different to 0, it establishes if to enable the instrument to work as slave instrument, as indi-

cated:

0 =

the instrument is not enabled to work as slave instrument

1 =

the instrument is enabled to work as slave instrument.

240 sec. 0

delay to the resources implementation in the slave in-

strument (®)

It is significant exclusively if the parameter n0 has value 2, if the parameter n1 has values

different to 0 and if the parameter n3 has value 1, it establishes a time interval to multiply for

the address established with the parameter n1; the value so obtained establishes the delay

with which the resources get implemented in the slave instrument from the moment of the

implementation of the same resource in the master instrument, except for the resource turning

ON and turning OFF that gets implemented immediately.
nA

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resources to implement in the slave instrument (®)

It is significant exclusively if the parameter n0 has value 2, if the parameter n1 has values

different to 0 and if the parameter n3 has value 1, it establishes the resources to implement in

the slave instrument in correspondence with the implementation of the same resources in the

master instrument, except what established with the disabling times to the compressor output

activation of the slave instrument, as indicated:

0 =

no resources implemented

1 =

compressor output status during the normal functioning

2 =

presentation of a request of a defrost cycle

3 =

compressor output status during the normal functioning and presentation of a request

of a defrost cycle

4 =

turning ON and turning OFF

5 =

compressor output status during the normal functioning, turning ON and turning OFF

6 =

presentation of a request of a defrost cycle, turning ON and turning OFF

7 =

compressor output status during the normal functioning, presentation of a request of a

defrost cycle, turning ON and turning OFF

8 =

reserved

9 =

compressor output status during the normal functioning

10 = presentation of a request of a defrost cycle

11 = compressor output status during the normal functioning and presentation of a request

of a defrost cycle

12 = turning ON and turning OFF

13 = compressor output status during the normal functioning, turning ON and turning OFF

14 = presentation of a request of a defrost cycle, turning ON and turning OFF

15 = compressor output status during the normal functioning, presentation of a request of a

defrost cycle, turning ON and turning OFF.

ADDITIONAL INFORMATIONS
-

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

the symbol (*) indicates that the unit of measure depends from the parameter /8

the symbol (®) indicates that the parameter is available on request only

the symbol (**) indicates that the unit of measure depends from the parameter db

a temperature alarm activation that does not disappear at the end of the time estab-

lished with the parameter A3 gets further disabled for the time established with the

parameter A6

a temperature alarm activation that happens before that the instrument activate a

defrost cycle gets disabled for the time established with the parameter A6 but it

does not interact on the defrost cycle

a temperature alarm activation that happens during or at the end of a defrost cycle

and that does not disappear at the end of the time established with the parameter

A7 gets further disabled for the time established with the parameter A6

a temperature alarm activation that happens during a multifunction digital input

alarm gets disabled for the time established with the parameter A6 from the mo-

ment in which the multifunction digital input alarm disappears

do not set more instruments as master instrument

if among the resources to implement in the slave instrument there is the compres-

sor output status during the normal functioning, the slave instrument displays the

indication “

nEt”; to display the temperature read by the cabinet probe of the slave

instrument keep pushed the key

if among the resources to implement in the slave instrument there is the compres-

sor output status during the normal functioning, in the slave instrument the param-

eters C5 and C6 has not significance

if among the resources to implement in the slave instrument there is the presenta-

tion of a request of a defrost cycle the parameter d5 establishes a delay to add to

the value established with the parameters n1 and n4; the value so obtained estab-

lishes the delay with which the resource gets implemented in the slave instrument

from the moment of the implementation of the same resource in the master instru-

ment

if among the resources to implement in the slave instrument there is the presenta-

tion of a request of a defrost cycle the slave instrument implements the resource

even if the conditions do not permit at the master instrument to activate a defrost

cycle

if among the resources to implement in the slave instrument there is not the turning

ON and the turning OFF during the status STAND-BY of the master instrument the

resources management of the slave instrument locally happens.

SIGNALS AND ALARMS

SIGNALS
If the LED L1 is turned ON it means that the compressor output is activated.
If the LED L2 is turned ON it means that the defrost output is activated.
If the LED L3 is turned ON it means that the evaporator fans output is activated.
If the LED L4 is turned ON it means that the instrument is in the status STAND-BY.
If the LED L5 is turned ON it means that the cabinet light output is activated.
If the LED L1 flashes it means that a count of a disabling time to the compressor output

activation is running (see the parameters C0, C1, C2 and C4) or that the instrument is set as

slave instrument, with a proper address, it is enabled to work as slave instrument, among the

resources to implement in the slave instrument there is the compressor output status during

the normal functioning and that a count of a delay time to the resource implementation is

running (see the parameters n1 and n4).
If the LED L2 flashes it means that a count of a delay time to a defrost cycle activation is

running (see the parameters C0, C1, C2 and C4), that a dripping is running (see the parameter

d7) or that the instrument is set as slave instrument, with a proper address, it is enabled to

work as slave instrument, among the resources to implement in the slave instrument there are

the compressor output status during the normal functioning and the presentation of a request

of a defrost cycle and that a count of a delay time to the resource implementation is running

(see the parameters n1 and n4).
If the LED L3 flashes it means that an evaporator fans stoppage is running (see the parameter

F5).
If the LED L4 flashes it means that the instrument is set as slave instrument, with a proper

address and it is not enabled to work as slave instrument (see the parameter n3).
If the LED L4 flashes every four seconds it means that the instrument is set as slave instru-

ment, with a proper address, it is enabled to work as slave instrument and among the re-

sources to implement in the slave instrument there is the turning ON and the turning OFF (see

the parameter nA).
If the instrument displays the indication “nEt” it means that the instrument is set as slave

instrument, with a proper address, it is enabled to work as slave instrument and among the

resources to implement in the slave instrument there is the compressor output status during

the normal functioning (see the parameter nA).
If the instrument displays the indication “nEt” flashing every four seconds it means that the

instrument is set as slave instrument, with a proper address, it is enabled to work as slave

instrument, among the resources to implement in the slave instrument there is the compres-

sor output status during the normal functioning but there is not the turning ON and the turning

OFF and both the master instrument and the slave instrument are in the status STAND-BY (see

the parameter nA).
If the instrument displays the temperature read by the cabinet probe and the indication “nEt”

flashing every four seconds it means that the instrument is set as slave instrument, with a

proper address, it is enabled to work as slave instrument, among the resources to implement

in the slave instrument there is the compressor output status during the normal functioning

but there is not the turning ON and the turning OFF, the master instrument is during the status

STAND-BY and the slave instrument is during the status ON (see the parameter nA).
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,

all outputs get forced to the status OFF and if the instrument is set as master instrument the

resources management of the slave instrument locally happens.
If the instrument displays the indication “E3” flashing and the buzzer utters an intermittent

beep (instrument locking) it means that there was a number of locking digital input alarm

enough to give the instrument locking (turn OFF and turn ON again the instrument, see the

parameters i2, i3, i4 and i5); during this alarm the compressor output gets forced to the status

OFF, if a defrost cycle is running the defrost cycle ends and the instrument never activates a

defrost cycle.
If the instrument displays the indication “E3” flashing alternated to the indication “E0” and the

buzzer utters an intermittent beep (locking digital input alarm and cabinet probe failure

alarm) it means that the locking digital input is active (deactivate the locking digital input, see

the parameters i2, i3, i4 and i5) and that: the kind of connected cabinet probe is not proper (see

the parameter /0), the cabinet probe is faulty (verify the cabinet probe integrity), there is a

mistake in the instrument-cabinet probe connection (verify the instrument-cabinet probe con-

nection integrity), the temperature read by the cabinet probe is outside the limits permitted by

the cabinet probe in use (verify that the temperature near the cabinet probe be inside the limits

permitted by the cabinet probe); during this alarm the compressor output gets forced to the

status OFF, if a defrost cycle is running the defrost cycle ends and the instrument never acti-

vates a defrost cycle.
If the instrument displays the indication “E3” flashing alternated to the temperature read by the

cabinet probe and the buzzer utters an intermittent beep (locking digital input alarm) it means

that the locking digital input is active (deactivate the locking digital input, see the parameters

i2, i3, i4 and i5); during this alarm the compressor output gets forced to the status OFF, if a

defrost cycle is running the defrost cycle ends and the instrument never activates a defrost

cycle.
If the instrument displays the indication “E0” flashing and the buzzer utters an intermittent

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

proper (see the parameter /0), the cabinet probe is faulty (verify the cabinet probe integrity),

there is a mistake in the instrument-cabinet probe connection (verify the instrument-cabinet

probe connection integrity), the temperature read by the cabinet probe is outside the limits

permitted by the cabinet probe in use (verify that the temperature near the cabinet probe be

inside the limits permitted by the cabinet probe); during this alarm the compressor output

functioning gets established with the parameters C5 and C6, if a defrost cycle is running the

defrost cycle ends and the instrument never activates a defrost cycle.
If the instrument displays the indication “E1” flashing and the buzzer utters an intermittent

beep (evaporator probe failure alarm) it means that there is one of the faults saw in the

previous case but referred to the evaporator probe; during this alarm, if the parameter F7 has

value 3 or 4 the evaporator fans output gets forced to the same status of the compressor

output, except what established with the parameter F5 and the defrost ends passed the defrost

maximum length.
If the instrument displays the temperature read by the cabinet probe and the buzzer utters an

intermittent beep (multifunction digital input alarm) it means that the multifunction digital

input is active (deactivate the multifunction digital input, see the parameters i0 and i1); during

this alarm, if the conditions permit it (the temperature read by the evaporator probe must be

below the defrost stopping setpoint) the instrument presents a request of a defrost cycle.
If the instrument displays the temperature read by the cabinet probe, the buzzer utters an

intermittent beep and the LED L5 flashes or it is turned ON (multifunction digital input alarm)

it means that the multifunction digital input is active (deactivate the multifunction digital input,

see the parameters i0 and i1); during this alarm the cabinet light output gets forced to the

status ON.
If the instrument displays the temperature read by the cabinet probe flashing, the indication

“Ain” flashing every four seconds, the buzzer utters an intermittent beep and the LED L5

flashes or it is turned ON (multifunction digital input alarm and temperature alarm) it means

that the multifunction digital input is active (deactivate the multifunction digital input, see the

parameters i0 and i1) and that the temperature read by the cabinet probe is outside the limit

established with the parameter A1 or A2 (see the parameters A0, A1 and A2); during this alarm

gets given the action established with the parameter i0 and if the parameter i0 has value 3 or 4

the instrument never activates a defrost cycle, except if the instrument is set as slave

instrument, with a proper address, it is enabled to work as slave instrument and among the

resources to implement in the slave instrument there is the presentation of a request of a

defrost cycle.
If the instrument displays the temperature read by the cabinet probe, the indication “Ain”

flashing every four seconds, the buzzer utters an intermittent beep and the LED L5 flashes or

it is turned ON (multifunction digital input alarm) it means that the multifunction digital input

is active (deactivate the multifunction digital input, see the parameters i0 and i1); during this

alarm gets given the action established with the parameter i0 and if the parameter i0 has value

3 or 4 the instrument never activates a defrost cycle, except if the instrument is set as slave

instrument, with a proper address, it is enabled to work as slave instrument and among the

resources to implement in the slave instrument there is the presentation of a request of a

defrost cycle.
If the instrument displays the temperature read by the cabinet probe flashing and the buzzer

utters an intermittent beep (temperature alarm) it means that the temperature read by the

cabinet probe is outside the limit established with the parameter A1 or A2 (see the parameters

A0, A1 and A2); inactive.
If the instrument displays the indication “nEt” and the buzzer utters an intermittent beep (slave

instrument alarm) it means that the instrument is set as slave instrument, with a proper ad-

dress, it is enabled to work as slave instrument, among the resources to implement in the slave

instrument there is the compressor output status during the normal functioning and that there

is one of the alarms saw in the previous cases; to display the alarm code flashing of the slave

instrument keep pushed the key T1.
If the instrument displays an alarm code flashing and the indication “nEt” flashing every four

seconds it means that the instrument is set as slave instrument, with a proper address, it is

enabled to work as slave instrument, among the resources to implement in the slave instru-

ment there is the compressor output status during the normal functioning but there is not the

turning ON and the turning OFF, the master instrument is during the status STAND-BY, the

slave instrument is during the status ON and there is one of the alarms saw in the previous

cases.
If the instrument displays the temperature read by the cabinet probe, the indication “nEt”

flashing every four seconds and the buzzer utters an intermittent beep (serial network alarm)

it means that: the instrument is set as slave instrument, with a proper address, it is enabled to

work as slave instrument and the master instrument is not enabled to work in the network (see

the parameter n0 of the master instrument, during this alarm the resources management of

the slave instrument locally happens), the instrument is set as slave instrument, with a proper

address, it is enabled to work as slave instrument and the master instrument is set as slave

instrument (see the parameter n0 of the master instrument, during this alarm the resources

management of the slave instrument locally happens), the instrument is not enabled to work in

the network, it is set with a proper address and it is enabled to work as slave instrument (see

the parameter n0 of the slave instrument, during this alarm the resources management of the

slave instrument locally happens), the instrument is set as master instrument, with a slave

instrument address and it is enabled to work as slave instrument (see the parameter n0 of the

master instrument, during this alarm the resources management of the slave instrument lo-

cally happens), the instrument is set as slave instrument, with a proper address, it is enabled

to work as slave instrument and the master instrument has the same address of the slave

instrument (see the parameter n1 of the master instrument, during this alarm the resources

management of the slave instrument locally happens), the instrument is set as slave instru-

ment, with a master instrument address and it is enabled to work as slave instrument (see the

parameter n1 of the slave instrument, during this alarm the resources management of the

slave instrument locally happens), the instrument is set as master instrument, with a proper

address and it is enabled to work as slave instrument (see the parameter n3 of the master

instrument, inactive), the instrument is set as slave instrument, with a proper address, it is

enabled to work as slave instrument and there is a mistake in the connection to the serial

network of instruments (verify the integrity of the connection to the serial network of instru-

ments, during this alarm the resources management of the slave instrument locally happens)

or the instrument is set as slave instrument, with a proper address, it is enabled to work as

slave instrument and the master instrument is not connected to the local power supply (verify

that the master instrument be connected to the local power supply, during this alarm the

resources management of the slave instrument locally happens).
ADDITIONAL INFORMATIONS
-

if the parameter F7 has value 0, 1 or 2 during an evaporator fans stoppage the LED

L3 does not flashe

the alarm codes are related in order of precedence.

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:

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

supply, inputs and outputs) 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, 4 VA.

Insulation class:

II.

Alarm buzzer:

incorporated.

Measure inputs:

2 (cabinet and evaporator probe) configurable for PTC/NTC

probes.

Digital inputs:

1 multifunction (5 V, 1 mA) configurable to interact on the

outputs activity and for NO or NC contact.

Working range:

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

-40 to +110 °C (-40 to + 230 °F) for NTC probe.

Setting range:

from -55 to +99 °C (-55 to +99 °F).

Resolution:

1 °F with unit of measure in Fahrenheit, 1 °C with unit of

measure in Celsius.

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