Fantini Cosmi L22 Manual

Fantini Cosmi Termostat L22

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INSTRUCTIONS FOR USE

Thank you for having chosen a Fantini Cosmi product. Before installing the instrument, please read these instructions carefully

to ensure maximum performance and safety.

DESCRIPTION

INDICATIONS

Thermostat output

Fig.1 — Front panel

.nottub tniopteS Increase button.

.nottub esaerceD Exit / Stand-by button.

INSTALLATION

Insert the controller through a hole measuring 71x29 mm.

Make sure that electrical connections comply with the paragraph “wiring diagrams”. To reduce the eects of electromagnetic

disturbance, keep the sensor and signal cables well separate from the power wires.

Fix the controller to the panel by means of the suitable clips, by pressingly gently; if ﬁ

tted, check that the rubber gasket

adheres to the panel perfectly, in order to prevent debris and moisture inﬁ

ltration to the back of the instrument.

Place the probe T1 inside the room in a point that truly represents the temperature of the stored product.

OPERATION

DISPLAY

During normal operation, the display shows either the temperature measured or one of the following indications:

OFF

Controller in stand-by

In tuning: timeout1 error

Probe T1 overrange or failure

In tuning: timeout2 error

TUN / 5.4

Controller in autotuning

In tuning: overrange error

SETPOINT (display and modiﬁ

cation of desired temperature value)

press button

for at least half second, to display the setpoint value.

By keeping button

pressed, use button

to set the desired value (adjustment is within the minimum

SPL

and the

maximum limit).SPH

When button

is released, the new value is stored.

STAND-BY

Button

, when pressed for 3 seconds, allows the controller to be put on a standby or output control to be resumed (with

SB =YES only).

CONTROLLER AUTOTUNING IN PID MODE

Before starting

Adjust the setpoint

1SP

to the desired value.

Set 1Y =PID.

Make sure that the

1PB

value matches the desired control mode (

1PB 1PB<0 for heating; >0 for refrigeration).

Start autotuning

Keep buttons

pressed for 3 seconds.

1CT blinks on the display.

With +

set the cycle time in order to deﬁ

ne the dynamic of the process to be controlled.

To start autotuning press

or wait for 30 seconds. To abort the autotuning function, press

During autotuning

During the entire autotuning phase, the display alternates

with the actual temperature measured.

In case of power failure, when power is resumed, after the initial autotest phase, the controller resumes the autotuning

function.

To abort the autotuning, without modifying the previous control parameters, keep button

pressed for 3 seconds.

After the autotuning has taken place successfully, the controller updates the control parameters and start to control.

Errors

If the autotuning function failed, the display shows an error code:

E1 timeout1 error: the controller could not bring the temperature within the proportional band. Increase

1SP in case of

heating control, vice versa, decrease

1SP in case of refrigerating control and re-start the process.

E2 timeout2 error: the autotuning has not ended within the maximum time allowed (1000 cycle times). Re-start the autotuning

process and set a longer cycle time

1CT .

E3 temperature overrange: check that the error was not caused by a probe malfunction, then decrease

1SP in case of heating

control, vice versa increase

1SP in case of refrigerating control and then re-start the process.

To eliminate the error indication and return to the normal mode, press button

Control improvement

To reduce overshoot, reduce the integral action reset

1AR .

To increase the response speed of the system, reduce the proportional band

1PB . Caution: doing this makes the system less

stable.

To reduce swings in steady-state temperature, increase the integral action time

1IT ; system stability is thus increased,

although its response speed is decreased.

To increase the speed of response to the variations in temperature, increase the derivative action time

1DT . Caution: a high

value makes the system sensitive to small variations and it may be a source of instability.

RECALIBRATION

Have a precision reference thermometer or a calibrator to hand.

Ensure that

OS1 SIM=0 and =0.

Switch the controller o then on again.

During the auto-test phase, press buttons

, and keep them pressed till the controller shows

0AD .

With buttons

and

select or : allows a calibration of 0, inserting a constant correction over the whole 0AD SAD 0AD

scale of measurement.

SAD

allows a calibration of the top part of the measurement scale with a proportional correction

between the calibration point and 0.

Press

to display the value and then use

to make the read value coincide with the value measured by the

reference instrument.

Exit from calibration by pressing button

CONFIGURATION PARAMETERS

Setup menu is accessed by pressing buttons

for 5 seconds.

With button

select the parameter to be modiﬁed.

Press button

to display the value.

By keeping button

pressed, use button

to set the desired value.

When button

is released, the newly programmed value is stored and the following parameter is displayed.

To exit from the setup, press button

or wait for 30 seconds.

PAR

RANGE DESCRIPTION

SCL

1°C;

2°C;

°F

Readout scale.

1°C : measuring range

L02B-- rof C°501/9.99 … 9.91-/04-

L22E-- rof .H.r% 100 … 0.0

2°C : measuring range -40 … 105°C for L02B--

°F : measuring range -40 … 221°F for L02B--

Caution: upon changing the SCL value, it is then absolutely necessary to re-congure the parameters relevant to the

absolute and relative temperatures (

SPL SPH 1SP, , , 1HY, etc..).

SPL

-50..SPH Minimum limit for

1SP setting

SPH

SPL.150° Maximum limit for

1SP setting

1SP

SPL... SPH Setpoint (value to be maintained in the room).

HY / PID Control mode.

With 1Y

=HY you select control with hysteresis: parameters

1HY and 1CT are used.

With 1Y

=PID you select a Proportional-Integral-Derivative control mode: parameters

1PB, 1IT, 1DT, 1AR, 1CT will

be used.

1HY

-19.9…19.9°C Thermostat dierential [control with hysteresis].

-19.9..19.9%r.H

Set 1HY

on a value greater than zero to make the output work in refrigerating mode, vice versa set on a value lower

than zero to make the output work in heating mode. With

1HY=0 the output is always o.

OFF

1SP 1SP+1HY

T[°]

OFF

1SP1SP-1HY

T[°]

Fig. 1a. ON/OFF refrigerating control (

1Y=HY, 1HY

>0) Fig. 1b. ON/OFF heating control (

1Y=HY, 1HY<0)

1PB

-19.9…19.9°C Proportional band [PID control].

-19.9..19.9%r.H

Set 1PB

on a value greater than zero to make the output work

in refrigerating mode, vice versa set on a value lower than

zero to make the output work in heating mode. With

1PB =0

the output is always o.

With a proportional controller, the temperature is controlled

by varying the time of activation of the output. The nearer the

temperature to set point, the less time of activation. A small

proportional band increases the promptness of response

of the system to temperature variations, but tends to make

it less stable. A purely proportional control stabilises the

temperature within the proportional band but does not cancel

the deviation from the set point.

1IT

0…999s Integral action time [PID control].

The steady-state e

rror is cancelled by inserting an

integral action into the control system. The integral action

time, determines the speed with which the steady-state

temperature is achieved, but a high speed (

1IT low) may be

the cause of overshoot and instability in the response. With

1IT=0 the integral control is disabled.

1DT

0…999s Derivative action time [PID control].

Response overshoot in a system controlled by a Proportional-

Derivative controller may be reduced by inserting a derivative

action in the control. A high derivative action (1

DT high)

makes the system very sensitive to small temperature

variations and causes instability. With 1DT= 0 the derivative

control is disabled.

1AR

0…100% Reset of integral action time referred to

1PB [PID control].

Decreasing the parameter 1AR

reduces the integral control action zone, and consequently the overshoot (see gure

on paragraph 1IT).

1CT

0…255s Cycle time.

In the ON/OFF control (

=HY), after the output has switched on or o, it will remain in the new state for a minimum

time of 1CT seconds, regardless of the temperature value.

In the PID control (1Y

=PID), the cycle time is the period of time in which the output completes a cycle (Time ON +

Time OFF). The faster the system to be controlled reacts to temperature changes, the smaller the cycle time should

be, in order to obtain a greater temperature stability and less sensitivity to load variations.

1PF

ON / OFF Output state in case of probe failure.

BAU

NON / SBY With BAU =SBY, the stand-by button is enabled.

SIM

0...100 Display slowdown.

OS1

-12.5..12.5°C Probe T1 oset.

ADR

1...255 address for PC communication. (function not available)

WIRING DIAGRAMS

TECHNICAL DATA

Power supply

Relay outputs

Inputs

Measuring Range

Measuring accuracy

L22E…: <±0.7%r.H. in the measuring range

L02B…: <±0.3°C -40…100°C; ±1°C out of that range

Operating conditions

-10 … +50°C; 15…80% r.H.

CE (Reference Norms)

EN60730-1; EN60730-2-9;

EN55022 (Class B);

EN50082-1

Front protection

IP55

1SP

1PB

Temperature

Overshoot

Steady-state error

Process

temperature

Time

1SP

1PB

Temperature

Overshoot

Process

temperature

Time

1PBx1AR%

integral control

action area

1SP

1PB

Temperature

Overshoot

Process

temperature

Time

6 7

OUT1

16(4)A

9 10

VINV+ V-

230V~ (L22EM1A) / 12Vac/dc (L22EI1A)

L22EI1A-L22EM1A

6 7

OUT1

16(4)A

230V~ (L02BM1A) / 12Vac/dc (L02BI1A)

L02BI1A-L02BM1A

L02BI1A/L22EI1A 12Vac/dc±10%, 3W

L02BM1A/L22EM1A 230Vac±10%, 50/60Hz, 3W

OUT1 16(4)A 240Vac

L22E--: 0-1V (LS160A)

L02B--: NTC 10K (LS130)

L22E--: 0…100% U.R.

L02B--: -40…105°C

L02B... L22E

FANTINI COSMI S.p.A.

Via dell’Osio, 6

20090 Caleppio di Settala, Milano, ITALY

Ph. +39 02 956821 | Fax +39 02 95307006

info@fantinicosmi.it

export@fantinicosmi.it

Produkt Specifikationer

Mærke:	Fantini Cosmi
Kategori:	Termostat
Model:	L22

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