PCU12005 datasheet(28/96 Pages) REDLION

28 / 96 page

HIDDEN FUNCTION MODE

The Hidden Function Mode is only accessible from the normal display

mode by pressing and holding the PAR button for three seconds. These

functions must be unlocked in Configuration Module #3. Factory settings are

locked. In this mode, these controller functions can be performed.

Local/Remote Setpoint Selection

Automatic/Manual Transfer

Initiate/Cancel Auto-tune

Reset Alarm Events

Each function may be “locked out” in the Configuration parameter

lockouts module. The PAR button is used to scroll to the desired function and

the up and down buttons are used to select the operation. Pressing the PAR

button while the function is displayed executes the function, and returns the

unit to the normal display mode. Pressing the DSP button exits this mode with

no action taken. The unit automatically returns to the normal display mode if

no action is taken.

HIDDEN FUNCTION MODE REFERENCE TABLE

Display Parameter

Range and Units

(Factory Setting Value)

Description/Comments

SPSL

Select

Local or

Remote

Setpoint

LOC - Local Setpoint

rE_t - Remote Setpoint

(LOC)

Appears only for models

with Second Analog

Input. “SPtr” determines

nature of controller

response.

trnF

Transfer

mode of

operation

Auto - Automatic control

User - Manual control

(Auto)

This step does not

appear if locked (LOC).

Exits to normal display

mode if executed.

tUNE

Auto-tune

invocation

Yes: starts the

auto-tune sequence.

No: terminates the

auto-tune sequence.

Prl - tune primary

(Cascade)

SEC - tune secondary

(Cascade)

(NO)

This step does not

appear if locked (LOC) or

exits to normal display

mode if executed. These

parameters appear only if

Second Analog Input

Internal Cascade is

selected.

ALrS

Alarm reset UP key resets Alarm 1

DOWN key resets

Alarm 2

This step does not

appear if alarm option not

installed, if locked (LOC)

or previous step

performed.

-20-

PCU12005 Datasheet(PDF) 28 Page - Red Lion Controls. Inc

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