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LB 1377

MULTICALOR 170.1 -200.1 PR / MD

SETTING PARAMETERS

When the burner is ignited all displays of the regulator light up. The set point display will blink for about 10 seconds. The value
in the upper field of the display (red) indicates the actual value. The value in the lower field of the display (green) indicates the set
point currently programmed.

CHANGING THE SET POINT

To change the set point, proceed as follows:

Press the

PGM

button to access the user level. SP1* will appear in the lower display

Change the value of set point SP1 using the t and s keys.

After a 2 second delay the value set is stored automatically –

To return to normal display press

EXIT

The value of SP1 depends on the value set previously in configuration level

C111

SETTING PID PARAMETERS

PID parameters are factory set to standard mean values. The operation of the regulator can be self-adapted to suit the system by
activating the “tunE” function. The regulator will set the PID parameters automatically. To activate the “tunE” function proceed
as follows:

With the burner in operation, press

PGM

the caption “tunE*” will blink in the display. – When “tunE”

stops blinking, the self-adaptation routine has been completed.

Confirm the computed parameters by pressing the

key for 2

seconds.

The “tunE” function cannot be activated in Manual mode, or when the burner is off.

The PID parameters can be corrected manually from the parameters level, working on the proportional band Pb1, the derivati-
ve action time dt and the integral action time rt.

To change parameters Pb1, dt and rt, proceeds as follows:

Press the

PGM

button to access the parameters level.

To move from

one parameter to the next, press

PGM

When

Pb1

is displayed, the value can be increased or decreased using the s and t keys.

Confirm the changed parameters by pressing

PGM

If confirmation is not given within 2 seconds the value will be stored auto-

matically.

Press

PGM

to access the next parameter.

When dt is displayed, repeat the procedure described above.

Press PGM

to access the next parameter.

When rt is displayed, repeat the procedure above.

To return to normal display press

EXIT

DIFFERENTIAL SETTING FOR IGNITION AND SHUTOFF
The regulator allows the selection of an adjustable switching differential that establishes burner ignition and shutoff values.
HYS1 indicates the lower ignition limit, below which the regulator switches the burner to maximum power. HYS3 indicates
the upper shutoff limit, above which the regulator switches the burner off. To set HYS1 and HYS3 proceed as follows: --

Press

the

PGM

key to access the parameters level.

To move from one parameter to the next, press

PGM

When

HYS1

is displayed

(burner ignition differential-stage II), increase or decrease the value using the

and

keys.

Confirm the changed parameters by

pressing

PGM

If confirmation is not given within 2 seconds the value will be stored automatically.

Press

PGM

to access the

next parameter.

When

HYS2

is displayed (burner shutoff differential-stage II), repeat the procedure described above.

Press

PGM

to access the next parameter.

When

HYS3

is displayed (upper shutoff differential) repeat the procedure described above.

To return to normal display press

EXIT

MANUAL/AUTOMATIC MODE

To access “MANUAL” mode, press and hold

EXIT

for at least 5 seconds. Manual mode can only be selected when the burner is

in operation. It is deactivated automatically when the burner shuts off. When the LED above the hand symbol is alight, the regu-
lator is in manual mode and the position of the servocontrol can be changed using the

and

keys. The LEDS on the front of

the regulator indicate whether the servocontrol OPEN or CLOSE command is currently active. Pressing the

key the servocon-

trol OPENS. Pressing the

key the servocontrol CLOSES. To select automatic mode press and hold

EXIT

for at least 5 seconds.

The LED above the hand symbol goes out and the regulator reverts to automatic.

CLIMATIC COMPENSATION

The RWF 40 regulator can be set with the set point interlocked to the external probe. To select this operating mode, proceed as
follows:

Connect the required probe as in the wiring diagram.