Eurotherm 3116 PID Podręcznik Użytkownika Pobierz pdf (Strona 31)

ENG

3116 User Guide Part No. HA028005ENG Issue 2.0 May 04

6.4 Timer

A timer can be configured to operate in four different modes. These can be selected in Level 2 using the ‘TM.CFG’

parameter as:-

• Dwell Timer

• Delayed switch on timer

• Soft start timer

There are four operating states:

1. Run. This starts the timer

2. Hold. This stops the timer at the elapsed time. It will start again from the elapsed time when Run is selected again.

3. Reset. This sets the timer back to zero. It can be run again from this state.

4. End cannot be set - it occurs automatically when the timer has counted down to zero

Run, Hold and Reset may be set through the front panel as described in section 6.8 or by the following methods:-

• Edge trigger a suitably configured digital input

• Power cycle the controller

• Digital communications command

• Selecting ‘T.STAT’ from the parameter list

Switching from Hold to Run through the front panel buttons is not allowable if the Hold status is forced by a logic input

or through Digital Communications.

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Eurotherm 3116 PID Podręcznik Użytkownika Strona 31