Additional functions, Real hour and minute, Signals and alarms – EVCO EC3195 User Manual

Page 4: Technical da

perature alarm to the moment in which the instrument store the following temperature read by

the cabinet probe during a temperature alarm.
During a lower temperature alarm, the stored temperature gets refused if it is higher the previ-

ous value.
During an upper temperature alarm, the stored temperature gets refused if it is lower the previ-

ous value.
A A

240 min. 0

disabling time to the temperature alarm activation from

the multifunction digital input activation/deactivation

and from the Energy Saving cycle activation/end

It is significant exclusively if the parameter i 0 has value 6 or 7 or if the parameter Hr2 has

values different to 0.0, it establishes the time that disables the lower/upper temperature alarm

relative to the working setpoint and to the setpoint established with the parameter r 8 activa-

tion from the moment of the multifunction digital input activation/deactivation, from the mo-

ment in which the instrument activates an Energy Saving cycle and from the moment of the

Energy Saving cycle end.
A b

---

disabling times typology

It establishes a bond between the times established with the parameters A 5 and A 6, as indi-

cated:

0 =

inactive

1 =

a temperature alarm activation that happens during a multifunction digital input alarm

gets disabled for the time established with the parameter A 6 from the moment in which

the multifunction digital input alarm disappears and a temperature alarm activation that

happens during a multifunction digital input alarm that does not disappear at the end of

the time established with the parameter A 5 gets further disabled for the time

established with the parameter A 6.

LABELMIN. MAX. U.M. ST.

EVAPORATOR FANS REGULATOR ASSOCIATED TO THE

EVAPORATOR FANS OUTPUT

F 1

-99

+99.9 (*)

-1.0 output deactivation setpoint

It is significant exclusively if the parameter /Ab has value 1 and if the parameter F 7 has value 3

or 4, according with the modality established with the parameter F 6, it establishes the tem-

perature to which the output gets deactivated and it is referred to the evaporator probe.
F 2

+0.1 +15.0 (*)

+2.0 hysteresis (differential)

It is significant exclusively if the parameter /Ab has value 1 and if the parameter F 7 has value 3

or 4, it establishes the hysteresis (differential) relative to the parameter F 1.
F 4

---

output functioning during the defrost and the dripping

It establishes the output functioning during a defrost and a dripping, as indicated:

0 =

during a defrost and a dripping the output gets forced to the status OFF

1 =

during a defrost and a dripping the output gets forced to the status ON

2 =

the output functioning during a defrost and a dripping gets established with the

parameter F 7.

F 5

min. 2

evaporator fans stoppage length

It establishes the evaporator fans stoppage length.
F 6

---

kind of output deactivation setpoint

It is significant exclusively if the parameter /Ab has value 1 and if the parameter F 7 has value 3

or 4, it establishes the kind of output deactivation setpoint that the instrument must manage,

as indicated:

0 =

absolute (the output deactivation setpoint establishes the temperature to which the

output gets deactivated)

1 =

relative to the temperature read by the cabinet probe (the value obtained subtracting

the absolute value of the output deactivation setpoint to the temperature read by the

cabinet probe establishes the temperature to which the output gets deactivated).

F 7

---

output functioning during the normal functioning

It establishes the output functioning during the normal functioning, as indicated:

0 =

during the normal functioning the output gets forced to the status OFF

1 =

during the normal functioning the output gets forced to the status ON

2 =

during the normal functioning the output gets forced to the status ON and during the

status OFF of the compressor output the output gets forced to the status OFF

3 =

during the normal functioning the output is associated to the setpoint established with

the parameter F 1, it remains continuously activated as long as the temperature read by

the evaporator probe reaches the setpoint established with the parameter F 1 and when

it falls below the setpoint established with the parameter F 1 of the hysteresis value

(differential) established with the parameter F 2 the output gets reactivated

4 =

during the normal functioning the output is associated to the setpoint established with

the parameter F 1, it remains continuously activated as long as the temperature read by

the evaporator probe reaches the setpoint established with the parameter F 1, when it

falls below the setpoint established with the parameter F 1 of the hysteresis value

(differential) established with the parameter F 2 the output gets reactivated and during

the status OFF of the compressor output the output gets forced to the status OFF

LABELMIN. MAX. U.M. ST.

DIGITAL INPUTS

i 0

---

action given during the multifunction digital input acti-

vation

It establishes the action given during the multifunction digital input activation, as indicated:

0 =

inactive

1 =

if the conditions permit it (the temperature read by the evaporator probe must be below

the setpoint established with the parameter d 2) activating the multifunction digital

input the instrument presents a request of a defrost cycle

2 =

during the multifunction digital input activation, if one output is associated to the

cabinet light the cabinet light output gets forced to the status ON

3 =

during the multifunction digital input activation the compressor output, except what

established with the disabling times to the compressor output activation gets forced to

the status ON and if one output is associated to the cabinet light the cabinet light output

gets forced to the status ON

4 =

during the multifunction digital input activation the compressor and evaporator fans

outputs get forced to the status OFF and if one output is associated to the cabinet light

the cabinet light output gets forced to the status ON

5 =

during the multifunction digital input activation the evaporator fans output gets forced

to the status OFF and if one output is associated to the cabinet light the cabinet light

output gets forced to the status ON

6 =

during the multifunction digital input activation the setpoint established with the

parameter r 8 establishes the temperature associated to the compressor output

7 =

during the multifunction digital input activation the setpoint established with the

parameter r 8 establishes the temperature associated to the compressor output and if

one output is associated to the cabinet light the cabinet light output gets forced to the

status OFF.

If the parameter i 0 has value 3 or 4 the multifunction digital input alarm activation that hap-

pens during a defrost cycle interacts on the compressor output status from the moment of the

defrost cycle end.
i 1

---

kind of contact of the multifunction digital input

It establishes the kind of contact of the multifunction digital input, as indicated:

0 =

NO contact

1 =

NC contact.

i 6

---

displaying of the indication “Ain” flashing during a

multifunction digital input alarm

It is significant exclusively if the parameter i 0 has values different to 0, it establishes if the

instrument must display must display the indication “Ain” flashing during a multifunction

digital input alarm, as indicated:

0 =

inactive

1 =

during a multifunction digital input alarm the instrument displays the indication “Ain”

flashing.

LABELMIN. MAX. U.M. ST.

CONNECTION IN A SERIAL NETWORK WITH EVCOBUS

PROTOCOL COMMUNICATION

L 1

---

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).
L 2

---

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).
L 4

---

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.

LABELMIN. MAX. U.M. ST.

ENERGY SAVING CYCLE MANAGER

Hr1 0.0

23.5 hours 0.0

Energy Saving cycle activation time (§)

It establishes the time in which the instrument activates an Energy Saving cycle, according with

the real hour and minute established with the label rtc (see the chapter REAL HOUR AND

MINUTE, for instance in order that the instrument activate the Energy Saving cycle at 16.30 set

the parameter Hr1 to 16.3).
Hr2 0.0

23.5 hours 0.0

Energy Saving cycle length (§)

It establishes the Energy Saving cycle length (for instance in order that the Energy Saving cycle

length be of 2 hours and 30 minutes set the parameter Hr2 to 2.3).
LABELMIN. MAX. U.M. ST.

REAL TIME DEFROST

Hd1 0.0

23.5 hours ---

first defrost cycle request presentation time (§)

It is significant exclusively if the parameter d E has value 3, it establishes the time in which the

instrument automatically presents the request of the first defrost cycle, according with the real

hour and minute established with the label rtc (see the chapter REAL HOUR AND MINUTE, for

instance in order that the instrument automatically present the request of the first defrost

cycle at 10.30 set the parameter Hd1 to 10.3).
If the parameter Hd1 has value --- the instrument never automatically presents the request of

the first defrost cycle.
Hd2 0.0

23.5 hours ---

second defrost cycle request presentation time (§)

It has the same significance of the parameter Hd1.
Hd3 0.0

23.5 hours ---

third defrost cycle request presentation time (§)

It has the same significance of the parameter Hd1.
Hd4 0.0

23.5 hours ---

fourth defrost cycle request presentation time (§)

It has the same significance of the parameter Hd1.
Hd5 0.0

23.5 hours ---

fifth defrost cycle request presentation time (§)

It has the same significance of the parameter Hd1.
Hd6 0.0

23.5 hours ---

sixth defrost cycle request presentation time (§)

It has the same significance of the parameter Hd1.
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

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

lished with the parameter A 3 gets further disabled for the time established with the

parameter A 6

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

defrost cycle gets disabled for the time established with the parameter A 6 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 A

7 gets further disabled for the time established with the parameter A 6

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

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

parameter A 6.

ADDITIONAL FUNCTIONS

ADDITIONAL FUNCTIONS USE
To gain access to the additional functions keep pushed for two seconds at least the key T1

(passed two seconds the instrument displays the label of the first additional function).
To select a label push and release over and over the key T1 or T2 as long as the instrument

displays the label of the desired additional function.
To display the label Pr2, AL and AH value keep pushed the key T3.
To erase the label AL and AH value keep pushed for four seconds at least the key T3 (passed

four seconds the instrument displays ---).
To modify the label rtc value see the chapter REAL HOUR AND MINUTE.
To turn out from the additional functions using procedure push and release over and over the

key T1 or T2 as long as the instrument displays the temperature read by the cabinet probe

(pushing and releasing the key T1 or T2 during the two seconds following the release of the

key T1 or T2 the instrument gain accesses to the additional functions again) or do not operate

with the keys for thirty seconds at least (time-out exit).
ADDITIONAL INFORMATIONS
-

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

tional functions using procedure is refused.

ADDITIONAL FUNCTIONS
LABELMIN. MAX. U.M. ST.

PROBES READING

Pr2

---

(*)

---

evaporator probe reading

It permits to display the temperature read by the evaporator probe.
LABELMIN. MAX. U.M. ST.

STORED TEMPERATURES DURING A TEMPERATURE

ALARM

---

(*)

---

stored temperature during a lower temperature alarm

It permits to display and to erase the temperature read by the cabinet probe stored during a

lower temperature alarm.
AH

---

(*)

---

stored temperature during an upper temperature alarm

It permits to display and to erase the temperature read by the cabinet probe stored during an

upper temperature alarm.
ADDITIONAL INFORMATIONS
-

if the parameter /Ab has value 0 the label Pr2 does not exist

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

if the parameter A 8 has value 0 or 2 the label AL does not exist

if the parameter A 8 has value 0 or 1 the label AH does not exist.

REAL HOUR AND MINUTE

REAL HOUR AND MINUTE SETTING
To modify the real hour and minute value gain access to the additional functions and select the

label rtc (see the chapter ADDITIONAL FUNCTIONS).
To modify the real hour 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 in-

creased more quickly): after the modification release the key T3 last (passed the two seconds

from the release of the key T3 without operated with the keys the instrument automatically

turns out from the real hour setting procedure).
To modify the real minute value release and keep pushed the key T3 during the real hour dis-

playing (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 (to the release of the key T3 the instrument automatically turns out from

the real hour and minute setting procedure).
ADDITIONAL INFORMATIONS
-

for the whole period of a corrupted memory data alarm the access to the real hour

and minute setting procedure is refused

the real hour or minute value modify clears the seconds

if a lack of power supply happens the real hour and minute value gets held for 24

hours, after a loading interval of 2 min. at least.

REAL HOUR AND MINUTE
LABELMIN. MAX. U.M. ST.

REAL HOUR AND MINUTE

rtc

0:0

23:59 h:m 0:0

real hour and minute

It establishes the real hour and minute.

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 L1 flashes it means that a count of a disabling time to the compressor output activa-

tion is running (see the parameters C 0, C 1, C 2 and C 4).
If the LED L2 flashes it means that a count of a delay time to a defrost cycle activation is

running (see the parameters C 0, C 1, C 2 and C 4), that a dripping is running (see the param-

eter d 7).
If the LED L3 flashes it means that an evaporator fans stoppage is running (see the parameter

F 5).
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

setting and using procedures is refused, all outputs get forced to the status OFF.
If the instrument displays the indication “E0” flashing alternated to the indication “---” 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 C 5 and C 6, 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 alternated to the temperature read by the

cabinet probe 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 F 7 has value 3 or 4 the evaporator fans output gets

forced to the same status of the compressor output, except what established with the param-

eters F 4 and F 5 and the defrost ends passed the defrost maximum length.
If the instrument displays the indication “Ain” flashing alternated to 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 i 0 and i 1); during this alarm gets given the action established with the

parameter i 0.
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 i 0 and i 1); during

this alarm gets given the action established with the parameter i 0.
If the instrument displays the indication “AH” flashing alternated to the temperature read by

the cabinet probe and the buzzer utters an intermittent beep (upper temperature alarm) it

means that the temperature read by the cabinet probe is outside the limit established with the

parameter Ab1 (see the parameters A 0, A1b and A2b); inactive.
If the instrument displays the indication “AH” flashing, the temperature read by the cabinet

probe flashing every three seconds and the buzzer utters an intermittent beep (stored tem-

perature during an upper temperature alarm) it means that there was an upper temperature

alarm (see the parameters A 0, A1b, A2b, A 8 and A 9); inactive, to display and to erase the

temperature read by the cabinet probe stored during an upper temperature alarm see the chap-

ter ADDITIONAL FUNCTIONS.
If the instrument displays the indication “AL” flashing alternated to the temperature read by the

cabinet probe and the buzzer utters an intermittent beep (lower temperature alarm) it means

that the temperature read by the cabinet probe is outside the limit established with the param-

eter AbA (see the parameters A 0, A1A and A2A); inactive.
If the instrument displays the indication “AL” flashing, the temperature read by the cabinet

probe flashing every three seconds and the buzzer utters an intermittent beep (stored tem-

perature during a lower temperature alarm) it means that there was a lower temperature

alarm (see the parameters A 0, A1A, A2A, A 8 and A 9); inactive, to display and to erase the

temperature read by the cabinet probe stored during a lower temperature alarm see the chapter

ADDITIONAL FUNCTIONS.
If the instrument displays the indication “rtc” flashing and the buzzer utters an intermittent

beep (“Real Time Clock” failure) it means that there is a corruption of the instrument clock

data (set the real hour and minute again: if to the turning ON again the alarm does not disap-

pear the instrument must be replaced); during this alarm, if the parameter d E has value 3 the

instrument manages periodicals defrost interval and the instrument never activates an Energy

Saving cycle.
ADDITIONAL INFORMATIONS
-

if more alarms should be active the instrument displays the alarm codes flashing

and the buzzer utters an intermittent beep, except for the corrupted memory data

alarm.

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, inputs 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, 50/60 Hz, 1.5 VA.

“Real Time Clock” data holding
without power supply:

24 hours, after a loading interval of 2 min. at least.

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 to +150 °C (-58 to +199 °F) for PTC probe, from

-40 to +110 °C (-40 to +199 °F) for NTC probe.

Setting range:

from -99 to +99.9 °C (-99 to +99 °F).

Resolution:

1 °F with unit of measure in Fahrenheit, configurable for

0.1 or 1 °C with unit of measure in Celsius.

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:

three 8 (3) A @ 250 Vac relays for one ½ HP @ 250 Vac

compressor (NO contact), evaporator fans (change-over

contact) and defrost system (NO contact) management.

Kind of defrost managed:

to resistances (electrical) and to hot gas (reversal of cycle),