EVCO EC6295S001 - Manual (Page 5)

Evco S.r
.l. • EC 6-295 P220 S001 • Sheet 3/3
relay working in accordance with the instrument mode (the relay will be activated if the
instrument is ON and it will be deactivated if the instrument is in the STAND-BY mode,
change-over contact).
Kind of defrost: electric and hot gas defrost.
Defrost control: defrost interval, defrost end temperature, defrost maximum length
and defrost interval count mode (automatic, by hand and remote).
Serial port: TTL with EVCOBUS communication protocol, adapt for serial interface
EC IFC 02.
The instrument shows the indications above alternated with the cabinet temperature,
except the indication “E2“ (it flashes), “E0“ (it is alternated with the indication
“- - -” ) and “nEt” (slave alarm, it is a fixed indication) and the buzzer utters an intermit-
tent beep.
9 TECHNICAL DATA
9.1 Technical data
Box: self-extinguishing grey.
Size: 106 x 90 x 58 mm (4.17 x 3.54 x 2.28 in, 6 DIN modules).
Installation: on DIN rail (it is not supplied by the builder).
Frontal protection: IP 40.
Connections: screw terminal blocks with pitch 5 mm (0.19 in) for cables up to
2.5 mm² (0.38 sq in, power supply, inputs and outputs), 5 poles single line female
connector with pitch 2.5 mm (0.09 in, serial port).
Ambient temperature: from 0 to 55 °C (32 to 131 °F, 10 ... 90% of relative humidity
without condensate).
Power supply: 230 Vac, 50/60 Hz, 4 VA.
Clock data maintenance without power supply: 24 hours (the instrument must
have been ON for 2 min at least).
Alarm buzzer: included.
Measure inputs: 2 (cabinet and evaporator probe) for PTC or NTC probes.
Digital inputs: 2 inputs: one multifunction input (NO or NC contact) and one lock
input, without voltage (they work with 5 mA).
Working range: from -50 to 99.9 °C (-58 to 212 °F) for PTC probe, from -40 to 99.9 °C
(-40 to 212 °F) for NTC probe.
Setpoint range: from -99 to 99.9 °C (-99 to 99 °F).
Resolution: 1 °F with unit of measure in Fahrenheit, 0.1 or 1 °C with unit of measure
in Celsius.
Display: one red LED 3-digit display 13.2 mm (0.51 in) high, output status indicators,
instrument mode indicator.
Outputs: 5 relays: one 16 A @ 250 Vac relay for one 1½ HP @ 230 Vac compressor
control (NO contact), one 8 A @ 250 Vac relay for evaporator fan control (NO contact),
one 8 A @ 250 Vac relay for defrost system control (change-over contact),
one 8 A @ 250 Vac relay for cabinet light control (NO contact) and one 8 A @ 250 Vac
serial
network
alarm
• the value of the pa-
rameters n0, n1 and
n3 is wrong
• the connections of
the instrument are
wrong
• look at the param-
eters n0, n1 and n3
• test the connections
of the instrument
the instrument will
work with the local
settings
LABEL MIN. MAX. U.M. DEF. ALARMS
A0 0.1 15.0 °C/°F (5) 2.0 hysteresis (differential, it is relative to A1A and A1b, it is important if A2A and/or A2b ≠ 0)
A1A -99 99.9 °C/°F (5) -10 lower temperature alarm threshold; look at A2A as well
A2A 0 2 --- 1 kind of lower temperature alarm (0 = it will never be activated, 1 = lower temperature alarm
relative to the working setpoint, 2 = absolute lower temperature alarm)
A1b -99 99.9 °C/°F (5) 10.0 upper temperature alarm threshold; look at A2b as well
A2b 0 2 --- 1 kind of upper temperature alarm (0 = it will never be activated, 1 = upper temperature alarm
relative to the working setpoint, 2 = absolute upper temperature alarm)
A3 0 240 min 120 upper temperature alarm exclusion time since you turn the instrument ON (it is important if
A2b ≠ 0) (11)
A5 -1 120 min 30 buzzer exclusion time since the multifunction input activation (it is important if i0 ≠ 0;
-1 = the buzzer will never be activated)
A6 0 240 min 5 temperature alarm exclusion time (it is important if A2A and/or A2b ≠ 0) (12)
A7 0 240 min 15 upper temperature alarm exclusion time since the end of the after dripping evaporator fan
delay (since the end of F5, it is important if A2b ≠ 0) (11)
A8 0 3 --- 0 kind of temperature alarm the instrument has to store (it is important if A2A and/or A2b ≠ 0;
0 = it will never be stored, 1 = lower temperature alarm, 2 = upper temperature alarm,
3 = both the lower temperature alarm and the upper one)
A9 1 15 s 1 time between two records of the temperature alarm in succession (it is important if
A2A and/or A2b ≠ 0 and A8 ≠ 0)
AA 0 240 min 0 temperature alarms relative to the working setpoint exclusion time since the multifunction
input activation/deactivation (it is important if i0 = 6 or 7) and since the activation/end of the
Energy Saving cycle
LABEL MIN. MAX. U.M. DEF. EVAPORATOR FAN
F1 -99 99.9 °C/°F (5) -1.0 evaporator fan stop temperature (evaporator temperature, it is important if F7 = 3 or 4); look
at F6 as well
F2 0.1 15.0 °C/°F (5) 2.0 hysteresis (differential, it is relative to F1, it is important if F7 = 3 or 4)
F4 0 2 --- 0 evaporator fan action during the defrost and dripping (0 = it will be forced OFF,
1 = it will be forced ON, 2 = it will work in accordance with F7)
F5 0 15 min 2 after dripping evaporator fan delay
F6 0 1 --- 0 kind of evaporator fan stop temperature (it is important if F7 = 3 or 4; 0 = absolute evapora-
tor fan stop temperature, 1 = evaporator fan stop temperature relative to the cabinet tem-
perature) (13)
F7 0 4 --- 1 evaporator fan action during the normal operation (0 = it will be forced OFF, 1 = it will be
forced ON, 2 = it will work in accordance with the compressor, 3 = it will work in accordance
with F1 and F2, 4 = if the compressor is ON, it will work in accordance with F1 and F2, if the
compressor is OFF, it will be forced OFF)