Emerson 87340 User Manual

Part Number: 87340-1001, Rev. 0

Release: April 2015

User Manual for TEC2 Display Module
(Model 87340)

User Manual

User Manual

Part Number: 87340-1001, Rev. 0

Section 1: Display Module

1.1 Local Display Module

Display Module with Bluetooth® - Model 87340.

The Local Display module consists of the following as shown in Figure 1:

• Graphics Display

• Message Center

• Control Knob and Selector Knob

• Three LEDs

Figure 1 Local Display Module (LDM)

Display Module

April 2015

1.1.1 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.

1.1.2 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 1.

LEDs

Graphics Display

Message Center

Control Knob

Selector Knob

Display Module

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.

1

Display Module

April 2015

Part Number: 87340-1001, Rev. 0

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 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 1. LDM Rotating Knobs

Knob Rotation Direction Function Result

User Manual

Spring return to
center

Clockwise

Control

Selector STOP

(CLOSE)

Counterclockwise
(OPEN)

Clockwise
(REMOTE)

Counterclockwise
(LOCAL)

Neutral
Position

YES

NO

Neutral
Position

NEXT Advances to the next display

BACK Returns to the previous display

Completes YES or NO entry cycle.
Exception: when knob is held for
continuous data entry updates.

Accepts the displayed question or
data entry. Advances to the next
display.
Exception: when knob is held for
continuous data entry updates.

Rejects displayed question or data.
Increments to the next data value or
display. Exception: when knob is
held for continuous data entry
updates.

Sets up entry, completes NEXT or
BACK entry cycle. See Note below

NOTE:

If the selector knob remains in either NEXT or BACK position, the display will scroll.

1.1.3 LEDs

There are three LEDs on the LDM:

• Red

• Green

• Yellow

The default function of these LEDs is detailed in Table 2.

1.1.4 Normal Display Function

Figure 2 details the display during normal function. The bar graphs, position digits,

icons, and LEDs indicate normal activity, that is, the valve opening, closing, or stopping
in mid-travel. The message center remains blank until alarms are active or the valve is
opening, closing, full open, or full close.

Table 2 details various normal activities and how each is displayed.

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Display Module

User Manual

Part Number: 87340-1001, Rev. 0

Figure 2 Normal Display

Display Module

April 2015

The valve has stopped and is 75% opened. The yellow LED is ON and the message
center is clear.

Table 2. Normal Display Functions

Valve
Activity

Fully
closed

Opening OPENING OFF Blinking OFF

Stopped Cleared ON OFF OFF

Fully
opened

Closing CLOSING OFF OFF Blinking

Alarm

Message
Center
Top Line

FULL
CLOSE

FULL
OPEN

Alarm Type
Displayed

-Bottom
Line

Display Functions (LEDs)

Yellow Red Green

OFF OFF ON 0%

OFF ON OFF 100%

Blinking OFF OFF

Position
Bar Graph

Flashing in
the Open
direction

STOP Icon is Displayed

Shows
relative
position

Flashing in
the Close
direction

Alarm Icon

Percent
Open
"XX%"

Increments

% open

Decrements

Display Module

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Display Module

April 2015

1.2 Remote Display Module (RDM)

Display Module with Bluetooth® - Model 87340

The RDM performs the same functions as the LDM.

NOTE:

If the RDM does not receive communication messages from the Central Control Module (CCM)
within 5 seconds after power is applied, the RDM will display the ashing message “CCM LINK
FAILED” and all three LEDs will blink. This will also occur if communication is lost for 5 seconds
or more.

If RDM 1 or 2 is enabled and not connected, the actuator will be in stop mode and cannot be
operated until RDM is connected or disabled.

Part Number: 87340-1001, Rev. 0

User Manual

1.2.1 RDM Operation with LDM

Two RDMs and an LDM can be connected to one actuator. The operation priority is
detailed in Table 3.

Table 3. RDM and LDM Operation Priority

Mode of Operation LDM, RDM #1, RDM #2 and Selector Switch Position

STOP

LOCAL

REMOTE

At least one module must have the selector switch in the STOP
position.

At least one module must have the selector switch in the LOCAL
position and none have the selector switch in the STOP position.

All modules must have the selector switch in the REMOTE
position.

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Display Module

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