User manual

COOLING PROPORTIONAL BAND ( 000.0 , 999.9 )%%

Full Scale ( - ) %

If = 1000 °C, = 0 °C and = 50.0 then

Proportional Band = ( - ) * / 100.0

Proportional Band = (1000-0)*50.0/100.0 = 500 °C

COOLING INTEGRAL TIME (0000 sec, 3600 secs)

It can be changed by the user. When tune operation finishes, it can be

changed by the device. If it is 0, integral control part does not perform.

When tune operation finishes if this parameter is 0, it can not be

changed because integral control part does not perform.

COOLING DERIVATIVETIME (000.0 sec, 999.9 secs)

It can be changed by the user. When tune operation finishes, it can be

changed by the device. If it is 0, derivative control part does not

perform. When tune operation finishes if this parameter is 0, it can not

be changed because derivative control part does not perform.

OUTPUT : ON

OUTPUT

PERIOD

OUTPUT

PERIOD

COOLING OUTPUT PERIOD TIME (1 sec, 150 secs)

It is control period of cooling output. While motorized valve control is

running, if is selected heating or cooling, this parameter is

not visible.

COOLING PROPORTIONAL BAND COEFFICIENT ( 0.0 , 100.0 )

If heating and cooling PID is used in a system, tune operation is

performed by heating output. Cooling proportional parameter is

calculated with heating proportional band value and coefficient

= * / 100.0

If heating and cooling PID is used in a system at the end of

the tune operation,

If = 10.0% and = 50.0 then

= * / 100.0 = 10.0 * 50.0 / 100.0 = 5.0%

Note: It is recommended that cooling proportional band coefficient if

cooling is done with air 100.0, with oil 80.0, with water 40.0 is accepted.

Example :

Relay Output :

SSR Output :

Output period must be short for stable process control. Relay must

not be used in short output periods because of limited life of their relay contact

(number of open/close events). Relay output must be used as control output in

values near to 30 seconds or greater than this value.

If short output period is needed in a system (approximately 1-2

seconds) SSR driver output module as last control element is recommended.

SELECTED