Red-lion PCU Manuel d'utilisateur télécharger pdf (Page 6)

CONTROLLER PROGRAMMING

The PCU has been designed to reduce the operator interaction with the

controller while still maintaining a high degree of control accuracy and user

flexibility. Front Panel Program Disable allows all of the controller’s set-ups to be

locked-out from further operator intervention after the initial parameter set-up.

The programming of the controller is divided into four sections:

Unprotected Parameter Mode

Configuration Parameter Mode

Protected Parameter Mode

Hidden Function Mode

These four programming modes allow the controller to adapt to any required

user-interface level.

UNPROTECTED PARAMETER MODE

The unprotected parameter mode is accessible when program disable is

inactive or when the proper access code number from the protected mode is

entered. The configuration parameter modes can be accessed only from this mode.

“SP” - Enter Setpoint

“OP” - Enter output power

“Prop” - Enter proportional band

“Intt” - Enter integral time

“dErt” - Enter derivative time

“rtio” - Enter Remote Setpoint ratio value

“bIAS” - Enter Remote Setpoint bias value

“SP-2” - View internal cascade secondary setpoint

demand

“Pb-2” - Enter internal cascade, secondary

proportional band

“It-2” - Enter internal cascade, secondary integral

time

“dt-2” - Enter internal cascade, secondary derivative

time

“AL-1” - Enter value for alarm #1

“AL-2” - Enter value for alarm #2

“CNFP” - Select basic configuration mode

“End” - Return to normal display mode

CONFIGURATION PARAMETER MODE

The configuration parameter mode allows the operator to set up the basic

requirements of the controller. It is divided into sections which group together

related programming steps, such as inputs, outputs, alarms, etc. Upon completion

of each section, the program returns to the configuration selection stage

allowing the user to return to the normal display mode.

Configuration 1, Inputs

“tYPE” - Select input signal type

“root” - Select square root linearization of main

input

“dCPt” - Select scaled display decimal point position

“rnd” - Enter rounding increment and trailing zeroes

for scaled display

“FLtr” - Select level of input filtering

“dSP1”

“INP1”

“dSP2”

- Scale main input

“INP2”

“SPLO” - Enter setpoint lower limit

“SPHI” - Enter setpoint higher limit

“SPrP” - Enter setpoint ramp rate

“InPt” - Select user input function

Configuration 2, Outputs

“CYCt” - Enter time proportioning cycle time

“OPAC” - Select control action

“OPLO” - Enter output power low limit

“OPHI” - Enter output power high limit

“OPFL” - Enter signal overdrive power preset

“OPdP” - Enter output control dampening

“CHYS” - Enter ON/OFF control hysteresis

“tcod” - Select auto-tuning dampening

“ANAS” - Select linear DC output assignment

“ANLO” - Enter linear DC output low scaling value

“ANHI” - Enter linear DC output high scaling value

“ANdb” - Enter linear DC output control deadband

“ANUt” - Enter linear DC output update time

Configuration 3, Parameter lock-outs

“SP” - Select degree of setpoint access

“OP” - Select degree of power access

“dEv” - Enable deviation display

“IN-2” - Enable second input display

“bdSP” - Enable blank display

“CodE” - Enter parameter access code

“PId” - Select degree of PID access

“PId2” - Select degree of secondary PID access

“rtbS” - Select degree of ratio/bias access

“AL” - Select degree of alarm access

“ALrS” - Enable alarm reset access

“SPSL” - Enable local/remote setpoint selection

“trnF” - Enable auto/manual mode selection

“tUNE” - Enable auto-tune invocation

Configuration 4, Alarms

“Act1” - Select operation mode of alarm #1

“rSt1” - Select reset mode of alarm #1

“Stb1” - Enable activation delay of alarm #1

“AL-1” - Enter value for alarm #1

“Act2” - Select operation mode of alarm #2

“rSt2” - Select reset mode of alarm #2

“Stb2” - Enable activation delay of alarm #2

“AL-2” - Enter value for alarm #2

“AHYS” - Enter hysteresis value for both alarms

Configuration 5, Secondary Output

“CYC2” - Enter time proportioning cycle time

“GAN2” - Enter relative gain

“db-2” - Enter deadband or overlap

Configuration 6, Serial Communications

“bAUd” - Select baud rate

“PArb” - Select parity bit

“Addr” - Enter unit address number

“Abrv” - Select abbreviated or full mnemonic

transmissions

“PrAt” - Enter automatic print rate

“PoPt” - Select parameters to be included in print-out

Configuration 7, Second Input

“OPEr” - Select remote setpoint or internal cascade

mode

“root” - Select second input square root linearization

“dPt2” - Select second input decimal point

“dSP1”

“INP1”

“dSP2”

- Entering scaling parameters of second input

“INP2”

“SPtr” - Enter local/remote select options

“OPd2” - Enter Secondary output control dampening

Configuration 8, Motorized Valve Positioner

Position mode: “VPS1” - Enter or measure valve closed position

“VPS2” - Enter or measure valve open position

“VUdt” - Enter valve update time

“VPdb” - Enter valve control deadband

“VFAL” - Enter valve fail detect time

Velocity mode: “VUdt” - Enter valve update time

“VOPt” - Enter valve open time

“VCLt” - Enter valve close time

“VOnt” - Enter valve control deadband

(minimum on time)

HIDDEN FUNCTION MODE

The hidden function mode is accessible from the normal operating mode. The

four functions in this mode may be locked-out individually in configuration 3

parameter lock-out section.

“SPSL” - Select Local/Remote Setpoint

“trnF” - Transfer between automatic (PID) control

and manual control

“tUNE” - Invoke/cancel PID Auto-tune

“ALrS” - Reset latched alarms

These parameters may not appear due to option configuration or other

programming.

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Red-lion PCU Manuel d'utilisateur Page 6

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