05.06.2015 Views

model 2704 controller installation and operation handbook - Soliton

model 2704 controller installation and operation handbook - Soliton

model 2704 controller installation and operation handbook - Soliton

SHOW MORE
SHOW LESS

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Alarm Operation<br />

<strong>2704</strong> Controller<br />

7.2.3. Deviation High Alarm<br />

The alarm occurs when the difference between the process variable <strong>and</strong> the setpoint is<br />

positive by greater than the alarm setpoint.<br />

Note: For User Analogue Value the deviation is the difference between the two user wired<br />

analogue inputs.<br />

S<br />

PV<br />

Alarm ON<br />

Alarm OFF<br />

U<br />

Hysteresis<br />

S<br />

Alarm<br />

Setpoint<br />

U<br />

S<br />

Working<br />

Setpoint<br />

Process<br />

Variable<br />

TimeT<br />

7.2.4. Deviation Low Alarm<br />

The alarm occurs when the difference between the process variable <strong>and</strong> the setpoint is<br />

negative by greater than the alarm setpoint.<br />

Note: For User Analogue Value the deviation is the difference between the two user wired<br />

analogue inputs.<br />

Alarm ON<br />

S<br />

PV<br />

Alarm OFF<br />

Process<br />

Variable<br />

U<br />

Hysteresis<br />

S<br />

U<br />

S<br />

Alarm<br />

Setpoint<br />

Working<br />

Setpoint<br />

TimeT<br />

7-4 Installation <strong>and</strong> Operation H<strong>and</strong>book. Part No HA026502 Issue 1.0 Apr-00

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!