Samson S2000 Instruções de Operação descarregar pdf (Página 61)

The time required for an initialization pro

-

cess depends on the transit time of the actu

-

ator and take several minutes. After a suc

-

cessful initialization, the positioner runs in

closed-loop operation indicated by .

A malfunctioning leads to the process being

canceled. The initialization error appears on

the display according to how it has been

classified by the condensed state. See sec

-

tion 8.3.

Note: When Code 48 - h0 = YES, the diag

-

nostics automatically start to plot the refer

-

ence graphs (drive signal steady-state d1

and hysteresis d2) after initialization has

been completed.

tESt d1 or tESt d2 appear on the display in

an alternating sequence.

An error during the plotting of the reference

graphs is indicated on the display over

Code 48 - h1 and Code 81.

The positioner still works properly, even

though the reference graph plotting has not

been completed successfully.

Valve closed position AIR TO CLOSE

If the slide switch is set to AIR TO CLOSE,

the positioner automatically switches to the

direction of action increasing/decreasing

(äæ) on successful completion of initializa

-

tion.

This results in the following assignment be

-

tween set point and valve position:

Valve closed

position

Direction of

action

Set point

Valve

Closed at Open at

AIR TO OPEN ää 0 % 100 %

AIR TO CLOSE äæ 100 % 0 %

The tight-closing function is activated.

NOTICE

Set Code 15 (final position w>) to 99 % for

three-way valves.

Canceling an initalization process

The initialization procedure can be canceled

while running by pressing the rotary

pushbutton ( ).

StOP appears three sec

-

onds long and the positioner then changes

to the fail-safe position (SAFE).

Exit the fail-safe position again over Code 0

(see section 8.2.2).

7.6.1 MAX – Initialization based

on maximum range

The positioner determines travel/angle of

rotation of the closing member from the

CLOSED position to the opposite side and

adopts this travel/angle of rotation as the

operating range from 0 to 100 %.

Enable configuration:

Note: If no settings are entered within

120 seconds, the enabled configuration

function becomes invalid.

Default No

EB 8384-4 EN 61

Start-up – Settings

1 2 ... 56 57 58 59 60 61 62 63 64 65 66 ... 123 124

Comentários a estes Manuais

Sem comentários