Controller programming – Red Lion PCU User Manual
Page 6
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.