Arico V400 Manuale d'uso - Pagina 2

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(11)Faceplate

PV：Normal mode：Present temp. Value

Level select mode：Parameter level 1~4

Parameter mode：Parameter name

SV：Normal mode：Setting value、Manual output percentage

Parameter mode：Parameter value

OUT1：Main output indicator

OUT2：Aux. output indicator

AL1：Alarm 1 output indicator

AL2：Alarm 2 output indicator

(23)PID Control

1. Output control mode

Main : PID

Main : on/off

Main : PID

Main : on/off

2. Output heating &cooling control mode

Main :heating Aux. :cooling

Main :cooling Aux. :heating

Auxiliary output function assists main output function in avoiding

the temperature out of control. They have opposite modes to

control.

3. Alarm Hysteresis band :

The output cycle time is one of important factor in control.It's

necessary to evaluate the heating and cooling system effici-

ency to set the output cycle time.suggest that the output

cycle time >20sec in relay output. If the output cycle tim e=0,

it will be analog output mode for that the higher temperature

stability system is desired,and the time=1~19 are for voltage

output mode and lower stability system

4. Proportional Band : P

Range=1~100

5. Integral Tim e : I

The

time is fluctuation.

Level Key

Set Key

Increment Key

Decrement Key

Aux. : PID

Aux. : on/off

and it 's avalible to set by user.

(12)Key Operation

1、Entry into level select mode and select level, and press

parameter mode.

2 、In parameter mode, press level key leave parameter mode to

Level select mode.

3、In setting mode, press level key for saving parameter and return to

parameter

mode.

1、Press set key enable set value.

2、In parameter mode, press set key for enable to set parameter.

3、In setting mode, press set key for saving parameter or setting

digit, and

return to parameter mode.

1、In level select mode,

press increment

2、In parameter mode,

press increment

3、In setting mode,

press increment

until high limit.

1、In level select mode, press decrement key to entry parameter mode

2、In parameter mode,

press decrement

3、In setting mode,

press decrement

until low limit,,

Press

at the same time for 2 sec to start or stop self-tuning.

Press decrement key for 2 sec to start or stop control output.

Press increment key for 2 sec to start or stop manual output.

Press set key for 8 sec to set the pass word "0044" automatically

Press

to return to the head of level in parameter mode.

Press

for 2 sec to return to normal mode.

6. Differential Tim e : D

Range=0~250 units,1unit=0.1sec and 0 for disable.It's

avalible to set by user.

7. What is the "PID" Control?

"P" is proportional band and unit =

with the following equation:

P = [ ( SV - PV ) * 100 ] / proportional band

"D" is differential tim e and unit=0.1sec. If "D"=10,10*0.1=1

sec, it means that differential action will be executed once

per sec. The setting is smaller and the time is shorter and

the output percentage is fewer.

8. PID Value Self Tuning :

PID value self tuning has three types: The first is disable

for self tuning,the second is only once ,and the other is

every times after power on.

But it only will be executed by the following situations:

The setting value of heating system should be higher than

the present temperature for 45

value of cooling system should be lower than the present

tem perature for 45

or 85

is desired,it's necessary to start this one, to set value,and

to comfirm that the temperature range is enough to execute

it, then turn off the power supply and restart the instrum ent,

we will see the PID value and the flashing of decimal point

in the right-down horn.It will be shuted after changing value

during self tuning.

into

key to entry parameter mode

key for selecting parameter.

key to increase the setting value

key for selecting parameter.

key to decrease the setting value

.It can describe

or 85

.Or the setting

.If this function was executed