Eurotherm 3116 PID User's Guide download pdf (Page 68)

3100/3200 Series

66 Part No HA028651 Issue 3.0 Mar-06

13. Timer/Programmer

A timer can be configured to operate in one of four different modes. These can be selected in Level 3 or configuration level as:-

Dwell timer

Delay timer

Soft start timer

Programmer – this is an orderable option

Operation of the timer has been described in section 5.

13.1 Timer Parameters

The full list of all available parameters in configuration level is given in the following table.

TIMER LIST ‘tim e r’’

Name Scrolling

Display

Parameter Description Value Default Access

Level

none

Timer disabled

dwel

Dwell

deLY

Delayed switch on

SFST

Soft start

TM . C FG

TIMER

CONFIGURATI

Timer type configuration

prog

Programmer

As order

code

Hour

Hours HH:MM

TM . res

TIMER

RESOLUTION

To set the time units

Min

Minutes MM:SS

Conf

R/O L3

THRES

TIMER START

THRESHOLD

To set the maximum

deviation between SP

and PV before the timer

starts.

Dwell timer and

Programmer only

Off or 1 to 3000 Units above and below

setpoint

Off

OFF

Control outputs go to zero %

DwEl

Control continues at SP1

SP2

Go to setpoint 2

ENd.T

TIMER END

TYPE

To determine the action

which takes place when

the timer has timed out.

Dwell timer and

Programmer only

res

Reset programmer

Conf

SS.SP

SOFT START

SETOINT

Sets the threshold below

which the power is

limited

SFST timer only

Controller input range 0 Conf

SS.PW R

SOFT START

POWER LIMIT

Sets the limit to the

power output during

start up

SFST timer only

0 to 100% 0 Conf

res

Reset

run

Running (counting)

hoLd

Running (hold)

T. STAT

TIMER STATUS

Timer status

end

Timed out

servo

SERVO MODE

Defines the way in which

the programmer starts

and how it recovers from

Starts at SP1 (or SP2).

The program must be re-started

after a power failure.

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