Siemens RWF50.3 User Manual page 40

Compact universal controllers

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Table Of Contents

Table of Contents

Display of controller

parameters

Parameter

Proportional band ¹

Derivative time

Integral action time

Dead band (neutral

zone) ¹

Controlling element

running time

Switch-on threshold

Heating controller ¹

Switch-off threshold

stage II

Heating controller ¹

Switch-off threshold

Heating controller ¹

Switch-on threshold

Cooling controller ¹

Switch-off threshold

stage II

Cooling controller ¹

Switch-off threshold

Cooling controller ¹

Response threshold

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The parameters are shown on the lower setpoint display (green) and their values on the

upper/actual value display (red).

Display

Value range

1...9999 digit

Pb1

0...9999 s

0.0...999.9 digit

10...3000 s

-1999...0.0 digit

HYS1

0.0...HYS3 digit

HYS2

0.0...9999 digit

HYS3

0.0...9999 digit

HYS4

HYS6...0.0 digit

HYS5

-1999...0.0 digit

HYS6

0.0...999.9

Setting of decimal place has an impact on this parameter

Note!

When using the RWF50... as a modulating controller only, or as a modulating

controller without the burner release function (1P, 1N), parameter HYS1 must be set to

0 and parameters HYS2 and HYS3 must be set to their maximum values.

Otherwise, for example, when using default parameter HYS1 (factory setting -5), the 3-

position controller is only released when the control deviation reaches -5 K.

User Manual RWF50...

7 Parameterization PArA

Factory

Remarks

setting

Influences the controller's P-action

Influences the controller's D-action

With dt = 0, the controller has no D-action

Influences the controller's I-action

350

With rt = 0, the controller has no I-action

For 3-position output

100%

-100%

Running time of the positioning valve for use

with modulating controllers

Reference!



-5