EVCO EC3L30 User Manual

Page 2

the configuration parameters values get stored in a non volatile memory even if a

lack of power supply happens.

CONFIGURABILITY

WORKING SETPOINT
LABEL MIN. MAX. U.M. ST.

WORKING SETPOINT

working setpoint

It establishes the temperature associated to the output K 1.
CONFIGURATION PARAMETERS
LABEL MIN. MAX. U.M. ST.

MEASURE INPUT

-15

+15 °C

calibration

It establishes a threshold to add algebraically to the signal coming from the measure input (for

instance to correct the signal).
LABEL MIN. MAX. U.M. ST.

ON-OFF TEMPERATURE REGULATOR ASSOCIATED TO THE

WORKING SETPOINT AND TO THE OUTPUT K 1

+15 °C

hysteresis (differential)

It establishes the hysteresis (differential) relative to the working setpoint.
r1

-40

+99 °C

-40

minimum working setpoint programmable

It establishes the minimum working setpoint programmable; the instrument automatically veri-

fies if the value established with the parameter r1 is below the maximum working setpoint

programmable established with the parameter r2.
r2

-40

+99 °C

+99 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.
r3

---

“cooling” or “heating” functioning

It establishes the output functioning, as indicated:

0 =

“cooling” functioning

1 =

“heating” functioning.

LABEL MIN. MAX. U.M. ST.

OUTPUT K 1 PROTECTION

min. 0

disabling time to the output activation from the instru-

ment start

It establishes the time that disables the output activation from the moment of the instrument

start.

SIGNALS AND ALARMS

SIGNALS
If the LED L1 is turned ON it means that the output K 1 is activated.
ALARMS
If the instrument displays the indication “E2” flashing (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 and the output K 1 gets forced to the status OFF.
If the instrument displays the indication “E0” flashing (probe failure alarm) it means that: the

kind of connected probe is not proper (verify the kind of connected probe), the probe is faulty

(verify the probe integrity), there is a mistake in the instrument-probe connection (verify the

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

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

permitted by the probe); during this alarm the output K 1 gets forced to the status OFF.
ADDITIONAL INFORMATIONS
-

the alarm codes are related in order of precedence.

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, measure input and output) 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.

Measure inputs:

1 for NTC probes.

Working range:

from -40 to +99 °C.

Setting range:

from -40 to +99 °C.

Resolution:

1 °C.

Display:

2-digit display 12.5 mm (0.49 in.) high red LED display

with automatic minus sign, output status indicator.

Outputs:

one change-over contact 8 (3) A @ 250 Vac relay for regu-

lation load management.

HOW TO ORDER

CODING SYSTEM
Instrument name:

EC 3-L30.

Desired measure input:

N (for NTC probes).

Desired power supply:

220 (230 Vac).