Programming using Local Adjustment
4.3
Adjustable Parameters
TYPE - Valve Type
This parameter enables the user to configure valve type as well as the type of action associate to the
valve. These are the options:
Lind
: Linear and Direct;
Linr:
Linear and Reverse;
Rotd:
Rotary and Direct;
Rotr:
Rotary and Reverse.
CHAR - Valve Characterization Curve
This parameter allows the user to configure the type of valve characterization curve. Options are as
follows:
Lin:
Linear;
EP50:
Equal Percentage 50%;
HY:
Hyperbolic.
Tab:
16 points - table (Configurable).
MODE - Operation Mode
This parameter allows the user to choose operation mode. Upon turning the positioner on, it will always
be in automatic mode, but it is possible to choose the operation mode. During operation there are the
following options:
Auto - Automatic Mode
During automatic mode the positions is set in accordance with the input 4 to 20 mA current signal.
While in automatic mode, local actuation in the SP% parameter is not allowed.
Man - Manual Mode
During manual mode the position is set in accordance with the SP% parameter value,
independently from the input current. This is the only mode in which the SP% parameter can be
actuated.
SP % - Set Point
This parameter represents the desired position value. While in "Manual" mode, it is possible to actuate
this parameter remotely, independently from the input current. While in automatic, it is calculated from
the input current level.
LOPOS - Lower Position
This parameter allows the lower position calibration as per the input current, usually 4 mA unless it is in
split range operation. During calibration, notice if the control becomes saturated, that is, if the valve no
longer moves in the desired direction. Should such a situation occur, the user shall actuate in the
opposite direction to the valves movement. Calibration is performed in terms of percentage.
UPPOS - Upper Position
This parameter allows the upper position calibration as per the input current, usually 20 mA unless it is
in split range operation. During calibration, notice if the control becomes saturated, that is, if the valve
no longer moves in the desired direction. Should such a situation occur, the user shall actuate in the
opposite direction to the valves movement. Calibration is performed in terms of percentage.
TIME - Setpoint Variation Time
This allows the configuration of the setpoint variation rate. The unit is expressed in seconds. It is
adjustable in the following range: 1 to 60.
TIME close to 60 causes the setpoint variation to be slower.
TIME close to 1 causes the setpoint variation to be faster.
KP - Proportional Gain
This parameter makes it possible to adjust the servo control proportional gain. It is adjustable within the
following range: 0.5 to 45.
For linear valves, typical KP values are between 35 and 45.
For rotary valves, typical KP values are around 8.
TR - Integral Time
This parameter makes possible to adjust the servo control integral time. It is adjustable within the
following range: 0 to 999 minutes/repetition.
For linear valves, typical TR values are around 2 minutes/repetition.
For rotary valves, typical TR values are around 8 minutes/repetition.
Summary of Contents for FY301
Page 8: ...H 523 Qrgtcvkqp Ockpvgpcpeg cpf Kpuvtwevkqpu Ocpwcn XKKK...
Page 24: ...FY301 Operation Maintenance and Instructions Manual 1 16...
Page 54: ...H 523 Qrgtcvkqp Ockpvgpcpeg cpf Kpuvtwevkqpu Ocpwcn 7038...
Page 65: ...Egtvkhkecvkqpu Kphqtocvkqp C09 Eqpvtqn Ftcykpi FM Approvals Factory Mutual...
Page 66: ...H 523 Qrgtcvkqp Ockpvgpcpeg cpf Kpuvtwevkqpu Ocpwcn C0 CSA Canadian Standards Association...
Page 82: ...6 Mounting Instructions...
