Emerson Bettis 500 User Manual

February 2018
Installation and Operation Manual
E2K-405-0218 Rev. 2
30
Section 4: Operation
Operation
4.1.1 Graphics Display and Message Center
The graphics display shows the mode of operation, valve status, position, torque,
and alarm symbols. The message center displays actuator setup selections, data
entry feedback, and alarm messages. When no alarms are active and the valve is
not moving or is not at either limit, the message center will be blank.
4.1.2 Control Knob and Selector Knob
The control knob performs normal Open/Stop/Close function in the local control
mode and YES/NO function in the “MONITOR/SETUP” mode as detailed in Table 4-1.
The NO selection increments the displayed value but does not decrement.
To decrement continuously hold the NO position until the highest value is reached.
The display value will then start at the lowest value and increment from there. If the
control knob is held in the NO position for more than 2 seconds the incrementing
rate will increase from 0.5 seconds per new value to 0.1 seconds per value.
The selector knob performs normal selector switch Local/Stop/Remote function
and alternate Next/Back display function in the “MONITOR/SETUP” mode as
detailed in Table 4-1.
The NEXT and BACK selections are used strictly for cycling through the SETUP
displays to locate the desired display or to exit the “SETUP” mode.
Table 4-1. LDM Rotating Knobs
Knob Rotation Direction Function Result
Control
Spring return to
center
Neutral
Position
Completes YES or NO entry cycle.
Exception: when knob is held for
continuous data entry updates.
Clockwise
(CLOSE)
YES
Accepts the displayed question or
data entry. Advances to the next
display.
Exception: when knob is held for
continuous data entry updates.
Counterclockwise
(OPEN)
NO
Rejects displayed question or data.
Increments to the next data value or
display. Exception: when knob is
held for continuous data entry
updates.
Selector STOP
Neutral
Position
Sets up entry, completes NEXT or
BACK entry cycle. See Note below
Clockwise
(REMOTE)
NEXT Advances to the next display
Counterclockwise
(LOCAL)
BACK Returns to the previous display
NOTE:
If the selector knob remains in either NEXT or BACK position, the display will scroll.
4.1.3 LEDs
There are three LEDs on the LDM:
• Red
• Green
• Yellow
The default function of these LEDs is detailed in Table 4-2.
See Section 5.5.2, Valve Control Setup to reverse Red to indicate closed/closing
and Green to indicate opened/opening.

Emerson Bettis 500 Specifications

General

Brand	Emerson
Model	Bettis 500
Category	Controller
Language	English