EVCO EC6294 User Manual
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OVERALL DIMENSIONS
The dimensions are expressed in millimetres and inches (third-scale drawing).
ELECTRICAL CONNECTIONELECTRICAL CONNECTION
ELECTRICAL CONNECTION
ELECTRICAL CONNECTIONELECTRICAL CONNECTION
CONNECTIONS TO DERIVE
Instance of typical application.
BUILDER DABUILDER DA
BUILDER DA
BUILDER DABUILDER DA
EVERY CONTROL S.r.l.
Via Mezzaterra 6, 32036 Sedico Belluno ITALY
Phone 0039/0437852468 (a.r.) Fax 0039/043783648
Internet addresses
e-mail: info@everycontrol.it
http://www.everycontrol.it
TO BE CAREFUL
This publication exclusively belongs to EVERY CONTROL and shall not be reproduced and distributed if not expressly authorized by the same EVERY CONTROL.
EVERY CONTROL does not assume any responsibility in order to the characteristics, to the technical data and to the possible mistakes related herein or deriving from the use of the same.
EVERY CONTROL can not be considered responsible for damages caused from the inobservance of the additional informations.
EVERY CONTROL reserves the right to make any modification without prior notice and at any time without prejudice the basic functioning and safety characteristics.
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WITH THE FIXING SYSTEM SUGGESTED BY THE BUILDER
On DIN EN 50022 standard rail according with DIN 43880 norms (third-scale drawing).
Fig. 3
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Fig. 5
EC 6-294EC 6-294
EC 6-294
EC 6-294EC 6-294
ON-OFF digital controller for one 1½ HP
compressor, evaporator fans, defrost (for temperature-time), cabinet light and ON-OFF outputs management
Operating instructions
Version 1.00 of November the twenty-ninth 2002
File ec6294e_v1.00.pdf
PT
IMPORTANT:
The use of this new instrument is easy; but for safety reasons, it is
important read these instructions carefully before the installation or
before the use and follow all additional informations.
It is very important keep these instructions with the instrument for future
consultations.
GENERAL INFORMAGENERAL INFORMA
GENERAL INFORMA
GENERAL INFORMAGENERAL INFORMA
WHAT IS THE USE
EC 6-294 is an ON-OFF digital controller studied for refrigerating systems management which
basic characteristics are the one 1½ HP compressor, evaporator fans, defrost (for temperature-time), cabinet light and ON-OFF outputs management and the “ON STAND-BY” key; besides, the instrument is provided with one multifunction digital input configurable to interact
on the outputs activity (it presents a request of a defrost cycle, it forces the cabinet light output
to the status ON, etc.).
In factory the instrument gets preset to accept at the measure inputs PTC/NTC probes used in
refrigeration field at the moment.
EC 6-294 is available in the 106 x 90 mm (4.17 x 3.54 in., 6 DIN modules) case and it is studied
for DIN standard rail installation.
GETTING STGETTING ST
GETTING ST
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INSTALLATION
EC 6-294 was studied for DIN EN 50022 standard rail installation according with DIN 43880
norms (the overall dimensions are related in Fig. 3, the fixing system suggested by the builder
is related in Fig. 4).
ADDITIONAL INFORMATIONS
- verify if the using conditions (ambient temperature, humidity, etc.) are within the
limits indicated by the builder (see the chapter TECHNICAL DATA)
- install the instrument in a location with a suitable ventilation, to avoid the internal overheating of the instrument
- do not install the instrument near surfaces that can to obstruct the air-grating
(carpets, covers, etc.), heating sources (radiators, hot air ducts, etc.), locations
subject to direct sunlight, rain, humidity, excessive dust, mechanical vibrations
or bumps, devices with strong magnetos (microwave ovens, big speakers, etc.)
- according with the safety norms, the protection against possible contacts with
electrical parts and parts protected with functional insulation only must be ensured
through a correct installation procedure of the instrument; all parts that ensure the
protection must be fixed so that they can not be removed if not with a tool.
ELECTRICAL CONNECTION
EC 6-294 is provided with three screw terminal blocks for cables up to 2.5 mm² (0.38in.², for
the connection to the power supply, inputs and outputs) located on the instrument frontal
panel (the connections to derive are related in Fig. 5 and they are checkable on the polyester
label stuck on the instrument case).
ADDITIONAL INFORMATIONS
- if the instrument is brought from a cold to a warm location, the humidity may
condense inside the instrument; wait about an hour before supply the instrument
- verify if the operating power supply voltage, electrical frequency and power of
the instrument correspond to the local power supply (see the chapter TECHNICAL
DATA)
- do not supply more instruments with the same transformer
- if the instrument is installed on a vehicle, its power supply must be derived directly from the battery of the vehicle
- give the instrument a protection able to limit the current absorbed in case of
failure
- the instrument remains connected to the local power supply as long as the terminals 85 and 87 are derived to the local power supply, even if the instrument is
apparently turned off
- if the instrument is supplied from low voltage use low voltage loads
- give the probes a protection able to insulate them against possible contacts with
metal parts or use insulated probes
- give the outputs a protection able to protect them against short circuit and overload
- do not try to repair the instrument; for the repairs apply to highly qualified staff
- if you have any questions or problems concerning the instrument please consult
Every Control (see the chapter BUILDER DATA).
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USEUSE
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USEUSE
PRELIMINARY INFORMATIONS
After derived the connections related in Fig. 5, the instrument reproposes the last settings
stored.
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Keeping pushed for two seconds at least the key T4 the instrument turning ON (status ON) or
turning OFF (status STAND-BY), except during the working setpoint setting and the configuration parameters setting procedures; the LED L4 is associated to the instrument status, it is
turned ON during the status STAND-BY and it is turned OFF during the status ON.
During the status STAND-BY the display is turned OFF and all outputs are forced to the status
OFF.
During the status ON, in the course of the normal functioning the instrument displays the
temperature read by the cabinet probe: if an alarm should be active the instrument displays the
alarm code flashing and the buzzer utters an intermittent beep as long as the cause that has
given it does not disappear (see the chapter SIGNALS AND ALARMS); pressure on the key T1
during an alarm permits to silence the buzzer.
EC 6-294 is provided with one working setpoint and with some configuration parameters that
get stored in a non volatile memory and that permit to set the instrument according with one’s
requirements (see the chapter CONFIGURABILITY).
The output K 1A is associated to the compressor and to the working setpoint, it remains
activated continuously as long as the temperature read by the cabinet probe reaches the working setpoint and when it rises above the working setpoint of the hysteresis value (differential)
the output gets reactivated, except during a defrost and a dripping.
Passed the defrost interval from the moment of the instrument start or from the moment in
which the instrument presents a request of a defrost cycle, if the conditions permit it (the
temperature read by the evaporator probe must be below the defrost stopping setpoint) the
instrument automatically presents the following request of a defrost cycle.
A defrost cycle provides three phases (defrost, dripping and evaporator fans stoppage) connected in cascade since the end of one automatically determines the passage to the following
one.
The output K 2A is associated to the defrost and it remains continuously activated during the
defrost as long as the temperature read by the evaporator probe reaches the defrost stopping
setpoint when the defrost ends and the instrument automatically moves to the dripping; if the
instrument was set to manage defrost to resistances (electrical) during a defrost the compressor output gets forced to the status OFF, if the instrument was set to manage hot gas defrost
(reversal of cycle) during a defrost the compressor output remains continuously activated.
Passed the dripping length from the moment of the defrost end the instrument automatically
moves to the evaporator fans stoppage; during a dripping the compressor output gets forced
to the status OFF.
Passed the evaporator fans stoppage length from the moment of the dripping end the defrost
cycle ends; during an evaporator fans stoppage the evaporator fans output activation gets
disabled.
If the conditions permit it (the temperature read by the evaporator probe must be below the
defrost stopping setpoint) keeping pushed the key T2 for four seconds at least the instrument
presents a request of a defrost cycle.
The output K 3A is associated to the cabinet light: pushing and releasing the key T5 the output
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gets activated or deactivated, except during the working setpoint setting and the configuration
parameters setting procedures; the LED L5 is associated to the output status, it is turned ON
when the output is activated and it is turned OFF when the output is deactivated.
The output K 4A is associated to the evaporator fans and to the output deactivation setpoint, it
remains continuously activated as long as the temperature read by the evaporator probe reaches
the output deactivation setpoint, when it falls below the output deactivation setpoint of the
hysteresis value (differential) the output gets reactivated and during the status OFF of the
compressor output the output gets forced to the status OFF, except what established with the
parameters of the family F.
The output K 5A is associated to the instrument status: it is forced to the status ON during the
status ON and it is forced to the status OFF during the status STAND-BY.
Activating the multifunction digital input and the locking digital input (available on request
instead of a relay output) the instrument interacts on the outputs activity according what
established with the parameters of the family i.
WORKING SETPOINT SETTING (WORKING TEMPERATURE)
To modify the working setpoint 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 increased more quickly): after the modification release the key T3 last; during the
pressure of the key T3 the LED L1 flashes quickly to indicate that a working setpoint setting
procedure is running (to the release of the key T3 the instrument automatically turns out from
the working setpoint setting procedure).
ADDITIONAL INFORMATIONS
- for the whole period of a corrupted memory data alarm the access to the working
setpoint setting procedure is refused
- the working setpoint is programmable within the limits established with the parameters r1 and r2
- the working setpoint value gets 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 decreased 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 modification 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 decreased 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 configuration parameters setting procedure is refused
- the modification of the parameter /A value has not immediate effect; to obtain this
effect, after the modification turn OFF and turn ON again the instrument
- 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 u1, u2, u3, u4 and u5 value has immediate effect; to avoid damages to the connected users, it must be executed during the
status STAND-BY
- the configuration parameters values get stored in a non volatile memory even if a
lack of power supply happens.
NETWORK USENETWORK USE
NETWORK USE
NETWORK USENETWORK USE
PRELIMINARY INFORMATIONS
On request the instrument can be preset to work in a serial network of instruments (slaves)
managed from a master instrument in order to implement some resources in the slaves instruments in correspondence with the implementation of the same resources in the master instrument (compressor output status during the normal functioning, presentation of a request of a
defrost cycle, etc.).
After derived the connections related in Fig. 5, the master instrument reproposes the last
settings stored (see the chapter USE), the resources management of the slaves instruments
locally happens (see the chapter USE), except what established with the parameters of the
family n.
CONFIGURABILITYCONFIGURABILITY
CONFIGURABILITY
CONFIGURABILITYCONFIGURABILITY
WORKING SETPOINT
LABEL MIN. MAX. U.M. ST. WORKING SETPOINT
r1 r2 (*) 0 working setpoint
It establishes the temperature associated to the compressor output.
CONFIGURATION PARAMETERS
LABEL MIN. MAX. U.M. ST. PASSWORD
PA -55 99 --- 0 password (§)
It is the password that permits to gain access to the second level.
LABEL MIN. MAX. U.M. ST. MEASURE INPUTS
/0 1 4 --- 1 kind of probe
It establishes the kind of probe that the instrument must recognize to its measure inputs, as
indicated:
1 = PTC probe 2 = reserved
3 = NTC probe 4 = reserved.
/1 -55 +99 (*)/8 0 calibration (§)
It establishes a threshold to add algebraically to the signals coming from the measure inputs
(for instance to correct the signals).
/2 0 6 --- 3 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.
4 = 8.0 sec. 5 = 19.8 sec.
6 = 48.0 sec.
/8 0 1 --- 1 unit of measure
It establishes the unit of measure with which the temperature gets displayed, as indicated:
0 = the unit of measure is the Fahrenheit degree
1 = the unit of measure is the Celsius degree.
/A 0 1 --- 1 evaporator probe enabling
It establishes if to enable the evaporator probe, as indicated:
0 = the evaporator probe is disabled
1 = the evaporator probe is enabled.
LABELMIN. MAX. U.M. ST. ON-OFF TEMPERATURE REGULATOR ASSOCIATED TO
r0 +1 +15 (*) +2 hysteresis (differential) (§)
It establishes the hysteresis (differential) relative to the working setpoint.
r1 -55 +99 (*) -50 minimum working setpoint programmable
It establishes the minimum working setpoint programmable; the instrument automatically verifies if the value established with the parameter r1 is below the maximum working setpoint
programmable established with the parameter r2.
r2 -55 +99 (*) +50 maximum working setpoint programmable
It establishes the maximum working setpoint programmable; the instrument automatically verifies if the value established with the parameter r2 is above the minimum working setpoint
programmable established with the parameter r1.
LABELMIN. MAX. U.M. ST. COMPRESSOR OUTPUT PROTECTION
C0 0 240 (**) 1 disabling time to the output activation from the instru-
It establishes the time that disables the output activation from the moment of the instrument
start.
C1 0 240 (**) 5 disabling time to the output activation from the previ-
It establishes the time that disables the output activation from the moment of the previous
output activation.
C2 0 240 (**) 3 disabling time to the output activation from the previ-
It establishes the time that disables the output activation from the moment of the previous
output deactivation.
C4 0 1 --- 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.
C5 1 240 (**) 10 cycle time for the output activation during a cabinet
It establishes the cycle time for the output activation due to the contribution of the percentage
established with the parameter C6 during a cabinet probe failure alarm.
C6 0 100 % 5 0 percentage of the cycle time during which the output
It establishes the percentage of the cycle time established with the parameter C5 during which
the output must remain continuously activated in the course of the cycle time during a cabinet
probe failure alarm, except what established with the disabling times to the compressor output
activation.
LABEL MIN. MAX. U.M. ST. DEFROST REGULATOR
d0 0 99 (**) 8 defrost interval
It establishes the time interval that pass from the moment of the instrument start or from the
moment in which the instrument presents a request of a defrost cycle to the moment in which
the instrument automatically presents the following request of a defrost cycle.
If the parameter d0 has value 0 the instrument never automatically presents a request of a
defrost cycle, except what established with the parameter d4.
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THE WORKING SETPOINT AND TO THE COMPRESSOR
OUTPUT
ment start
ous activation
ous deactivation
probe failure alarm
gets activated during a cabinet probe failure alarm
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