MKS 651C - Setup Menu

Chapter Four: System Setup Setu
p
Menu
41
Setup Menu
The Setup menu enables you to change the configuration of the 651 controller. The initial
configuration is listed in
Appendix E: Initial Settings
, page 125. The instructions in this section
assume that you will enter the commands from the front panel, so be sure that the key lock
switch is set to local.
The Setup menu includes display lists from which selections can be made under the following
topics:
• Control mode - PID or Self-Tuning
• Baud rate, parity, and delimiter
• Sensor range and pressure units of measure
• Sensor signal and type
• Analog set point input range and valve signal output
• Set point types A through E, pressure or valve position
• Softstart rates for set points A through E, analog set point, valve open, and valve close
• Direction of valve control
It is possible to exit the Setup menu and return to the system’s default display,
pressure and
position,
by pressing any key at any time. The Setup menu input can be resumed or restarted by
pressing [
] and [ ] simultaneously for about three seconds. Press [ ] or [ ]
to scroll to the previous or next topic in the Setup menu and use the Adjust knob to select the
desired parameters.
Control Mode
The 651 controller is initially configured for PID control. Follow the steps below to change the
control mode setting to Self-Tuning control.
1. Press [
] and [ ] simultaneously for about three seconds. The following display
appears.
CONTROL
MODE: PID
2. Use the Adjust knob to choose either
PID
or
Self-Tuning
control.
3. If you choose Self-Tuning control, press the [L
EARN
] key for roughly three seconds.
The 651 unit will “learn” the characteristics of your valve. Once the learn process is
complete, you can operate the 651 unit in either the Local or Remote mode.