EVCO EC6294 - Manual (Page 3)

d1 0 1 --- 1 kind of defrost
It establishes the kind of defrost that the instrument must manage, as indicated:
0 = to resistances (electrical)
1 = to hot gas (reversal of cycle).
d2 -55 +99 (*) +2 defrost stopping setpoint
It is significant exclusively if the parameter /A has value 1, it establishes the temperature to
which a defrost gets stopped and it is referred to the evaporator probe.
d3
1 99 (**) 15 defrost maximum length
It establishes the defrost maximum length.
Passed the defrost maximum length from the moment in which the instrument activates a
defrost cycle, if the temperature read by the evaporator probe is below the setpoint established
with the parameter d2 the defrost ends.
d4
0 1 --- 0 defrost cycle at the instrument start
It establishes if the instrument automatically must present a request of a defrost cycle at the
moment of the instrument start, as indicated:
0 = inactive
1 = the instrument automatically presents a request of a defrost cycle at the moment of the
instrument start.
d5 0 99 (**) 0 delay to a defrost cycle activation from the instrument
start
It is significant exclusively if the parameter d4 has value 1 or if the parameter i0 has value 1, it
establishes the delay with which the instrument automatically presents a request of a defrost
cycle from the moment of the instrument start and from the moment of the multifunction
digital input activation.
A manual presentation of a request of a defrost cycle during the count of the delay established
with the parameter d5 clears the delay.
d6
0 1 --- 1 locking of the displayed temperature from a defrost cy-
cle activation
It establishes if to lock the displayed temperature from the moment in which the instrument
activates a defrost cycle, as indicated:
0 = inactive
1 = during a defrost, a dripping and as long as the temperature read by the cabinet probe
reaches the working setpoint, the instrument displays the temperature read by the
cabinet probe in the moment in which the instrument activates a defrost cycle.
d7 0 15 (**) 2 dripping length
It establishes the dripping length.
d9
0 1 --- 0 disabling times to the compressor output activation over-
ride
It is significant exclusively if the parameter d1 has value 1, it establishes if to clear the disa-
bling times to the compressor output activation in the moment in which the instrument presents
a request of a defrost cycle, as indicated:
0 = inactive
1 = in the moment in which the instrument presents a request of a defrost cycle the
disabling times to the compressor output activation get cleared.
dA --- --- (*) --- evaporator probe reading (§)
It permits to display the temperature read by the evaporator probe.
db
0 1 --- 0 times base
It establishes the unit of measure of the parameters expressed in time intervals, except for the
parameters L3 and n4, as indicated:
0 = the unit of measure of the parameter d0 is the hour and the unit of measure of the
parameters C0, C1, C2, C5, d3, d5, d7, A3, A5, A6, A7, F5, i4 and i5 is the minute
1 = the unit of measure of the parameter d0 is the minute and the unit of measure of the
parameters C0, C1, C2, C5, d3, d5, d7, A3, A5, A6, A7, F5, i4 and i5 is the second.
LABEL MIN. MAX. U.M. ST. ALARM REGULATOR
A0 +1 +15 (*) +2 hysteresis (differential)
It establishes the hysteresis (differential) relative to the parameters A1 and A2.
A1
-55 0 (*) 0 lower temperature alarm set relative to the working
setpoint
It establishes a threshold to add algebraically to the working setpoint; the value so obtained
establishes the temperature below which the lower temperature alarm gets activated and it is
referred to the cabinet probe.
If the parameter A1 has value 0 the lower temperature alarm never gets activated.
A2
0 +99 (*) 0 upper temperature alarm set relative to the working
setpoint
It establishes a threshold to add algebraically to the working setpoint; the value so obtained
establishes the temperature above which the upper temperature alarm gets activated and it is
referred to the cabinet probe.
If the parameter A2 has value 0 the upper temperature alarm never gets activated.
A3
0 240 (**) 120 disabling time to the temperature alarm activation from
the instrument start
It establishes the time that disables the temperature alarm activation from the moment of the
instrument start.
A5
-1 120 (**) 30 disabling time to the buzzer activation for the
multifunction digital input alarm indication
It is significant exclusively if the parameter i0 has values different to 0, it establishes the time
that disables the buzzer activation for the multifunction digital input alarm indication from the
moment in which the multifunction digital input alarm happens.
If the parameter A5 has value -1 during a multifunction digital input alarm the buzzer gets not
activated.
A6
0 240 (**) 5 disabling time to the temperature alarm activation
It establishes the time that disables the temperature alarm activation from the moment in
which the temperature alarm happens.
A7
0 240 (**) 15 disabling time to the temperature alarm activation from
the defrost cycle end
It establishes the time that disables the temperature alarm activation from the moment of the 6 3
defrost cycle end.
LABEL MIN. MAX. U.M. ST.
EVAPORATOR FANS REGULATOR ASSOCIATED TO THE
EVAPORATOR FANS OUTPUT
F1 -55 +99 (*) -1 output deactivation setpoint
It is significant exclusively if the parameter /A has value 1 and if the parameter F7 has value 3
or 4, according with the modality established with the parameter F6, it establishes the tem-
perature to which the output gets deactivated and it is referred to the evaporator probe.
F2
+1 +15 (*) +2 hysteresis (differential)
It is significant exclusively if the parameter /A has value 1 and if the parameter F7 has value 3
or 4, it establishes the hysteresis (differential) relative to the parameter F1.
F4
0 2 --- 0 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 F7.
F5 0 15 (**) 2 evaporator fans stoppage length
It establishes the evaporator fans stoppage length.
F6
0 1 --- 0 kind of output deactivation setpoint
It is significant exclusively if the parameter /A has value 1 and if the parameter F7 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).
F7 0 4 --- 4 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 F1, it remains continuously activated as long as the temperature read by
the evaporator probe reaches the setpoint established with the parameter F1 and when
it falls below the setpoint established with the parameter F1 of the hysteresis value
(differential) established with the parameter F2 the output gets reactivated
4 = during the normal functioning the output is associated to the setpoint established with
the parameter F1, it remains continuously activated as long as the temperature read by
the evaporator probe reaches the setpoint established with the parameter F1, when it
falls below the setpoint established with the parameter F1 of the hysteresis value
(differential) established with the parameter F2 the output gets reactivated and during
the status OFF of the compressor output the output gets forced to the status OFF
LABEL MIN. MAX. U.M. ST. DIGITAL INPUTS
i0 0 5 --- 4 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 d2) activating the multifunction digital input
the instrument presents a request of a defrost cycle
2 = during the multifunction digital input activation 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 and the
cabinet light output get 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 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 the cabinet light output gets forced to the status ON.
If the parameter i0 has value 2, 3, 4 or 5 pressure on the key T5 during a multifunction digital
input alarm does not modify the cabinet light output status but it is indicated from the turning
ON (if before the multifunction digital input alarm activation the cabinet light output was deac-
tivated) or from the flashing (if before the multifunction digital input alarm activation the cabi-
net light output was activated) of the LED L5.
If the parameter i0 has value 3 or 4 the multifunction digital input alarm activation that happens
during a defrost cycle interacts on the compressor output status from the moment of the
defrost cycle end.
i1
0 1 --- 0 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.
i2 0 2 --- 0 action given during the locking digital input activation
(®)
It establishes the action given during the locking digital input activation, as indicated:
0 = inactive
1 = during the locking digital input activation the compressor output gets forced to the
status OFF
2 = during the locking digital input activation the compressor output gets forced to the
status OFF, from the moment of the locking digital input deactivation the compressor
output activation gets disabled for the time established with the parameter i5, in the
moment in which the compressor output gets reactivated the instrument increases a
locking digital input alarms counter, when the locking digital input alarms counter reaches
the number established with the parameter i3 the compressor output gets definitively
forced to the status OFF (instrument locking); to obtain the instrument unlocking turn
OFF and turn ON again the instrument.
Display: 3-digit display 12.5 mm (0.49 in.) high red LED display
with automatic minus sign, output status indicators, in-
strument status indicator.
Outputs: five relays of which one 16 (2) A @ 250 Vac relay for one
1½ HP @ 250 Vac compressor (NO contact) management,
three 6 (3) A @ 250 Vac relays for evaporator fans (NO
contact), defrost system management (change-over con-
tact) and for cabinet light control (NO contact) and one
6 (3) A @ 250 Vac relay associated to the instrument sta-
tus (change-over contact).
Kind of defrost managed: to resistances (electrical) and to hot gas (reversal of cy-
cle), automatic, manual and remote.
Defrost management: for interval, stopping temperature and maximum length.
HOW TO ORDER HOW TO ORDER HOW TO ORDER HOW TO ORDER HOW TO ORDER
CODING SYSTEM
Instrument name:
EC 6-294.
Desired measure input: P (for PTC/NTC probes).
Desired power supply: 220 (230 Vac).