background image

1

!

BACKLIGHTED WEIGHT UNITS INDICATOR

!

PROGRAMMABLE AUTO-ZERO TRACKING

!

TARE AND ZERO FUNCTIONS

!

MAX AND MIN READING MEMORY

!

PROGRAMMABLE INPUT AND OUTPUT RESPONSE TIMES

!

INTEGRATOR/TOTALIZER

!

THREE PROGRAMMABLE DIGITAL CONTROL INPUTS

!

FOUR SETPOINT ALARM OUTPUTS (W/Plug-in card)

!

COMMUNICATION AND BUS CAPABILITIES (W/Plug-in card)

!

ANALOG OUTPUT SIGNAL (W/Plug-in card)

!

PC SOFTWARE AVAILABLE FOR INDICATOR 

CONFIGURATION

!

NEMA 4X/IP65 SEALED FRONT BEZEL

!

UNIVERSAL AC OR 24 V SUPPLY OPTION

GENERAL DESCRIPTION

The MP30 is a high accuracy yet compact digital indicator suitable for simple

weighing and control applications. The 5 digit readout employs advanced
technology for stable, drift free readout while incorporating features that
provide application flexibility now and in the future with field plug-in option
cards. Option cards enhance the indicator functions, affording Alarm outputs,
Linear DC signal output and two-way Serial Communications.

The weight Indicator has two bipolar input ranges: ±24 mV and ±240 mV.

The built-in bridge excitation is of low-drift design and is selectable for 5 VDC
or 10 VDC output. The indicator can drive 4, 350 ohm load cells. Calibrating
the indicator is easy due to the choice of scaling procedures: Either 1) Apply
calibration weights to the weighing system or 2) Directly key-in data based
upon known load cell calibration data. 

The indicator has a simple five button keypad. The key functions are: Weight

display select, Parameter Access, Tare In/Out, Acquire Zero, and Print Ticket.
Additionally, three of these keys can be programmed for different functionality.

The indicator provides readout selections of Brutto/Gross Weight, the Net

weight and the Tare Weight. The Tare Weight can be acquired automatically by
a single key-press or via a keypad direct entry. 

The indicator also has a means of recording the Max and Min reading, as well

as having a Totalizer feature. The totalizer provides either a free running
accumulation of total mass flow; or keeps account of total batch weight when
adding individual ingredients.

The indicator has four setpoint outputs, implemented on Plug-in cards. The

Plug-in cards provide dual FORM-C relays (5 A), quad FORM-A relays (3 A)
or either sinking or sourcing quad open collector logic outputs. The setpoint
alarms can be configured in modes to suit a variety of control and alarm
requirements.

- High and low absolute, high and low deviation and band acting
- Balanced or unbalanced hysteresis
- On and off delay timers

- Auto reset or latching modes
- Reverse phase output and/or panel indicator
- Selection of alternate list of setpoint values
- Tracks gross or net weight

Plug-in cards also facilitate bus communications. These include RS232,

RS485 and DeviceNet. Readout values and setpoint alarm values can be
controlled through the bus. Additionally, the indicator has features that allow a
remote computer to directly control the outputs of the indicator. This is useful
during commissioning phases and diagnostic use. With a communication card
installed, set-up software allows configuration from a PC. The configuration
data can be saved to a file for later recall.

A linear DC output signal is available as a Plug-in card. The card provides

either 20 mA or 10 V signals. The output can be scaled independent of the input
range. The output can be used as a control or signal retransmission.

The features of the linear output card are:

- Output tracks either gross or net weight
- Programmable output update times

Once the indicator has been initially configured, the parameter list may be

locked out from further modification in its entirety or only the setpoint values
can be made accessible.

The indicator has been specifically designed for harsh industrial environments.

With NEMA 4X/IP65 sealed bezel and extensive testing of noise effects to CE
requirements, the indicator provides a tough and reliable local readout.

MODEL MP30 - 1/8 DIN DIGITAL WEIGHT INDICATOR

CAUTION: Read complete

instructions prior to installation

and operation of the unit.

CAUTION: Risk of electric shock.

!

DIRECT INTERFACE TO LOAD CELLS (4 X 350 OHM)

!

FAST 20 READINGS/SEC UPDATE RATE

!

DUAL RANGE INPUT: ±24 mV OR ±240 mV

!

SELECTABLE 5 VDC OR 10 VDC BRIDGE EXCITATION

DIMENSIONS  In inches (mm)

Note: Recommended minimum clearance (behind the panel) for

mounting clip installation is 2.1" (53.4) H x 5.0" (127) W.

Bulletin No.  MP30-C
Drawing No.  LP0480
Released  11/05

Содержание MP30

Страница 1: ...uts implemented on Plug in cards The Plug in cards provide dual FORM C relays 5 A quad FORM A relays 3 A or either sinking or sourcing quad open collector logic outputs The setpoint alarms can be configured in modes to suit a variety of control and alarm requirements High and low absolute high and low deviation and band acting Balanced or unbalanced hysteresis On and off delay timers Auto reset or...

Страница 2: ...RS485 Isolation To Sensor User Input Commons 500 Vrms for 1 min Working Voltage 50 V Not Isolated from all other commons Data 7 8 bits Baud 300 to 19200 Parity no odd or even Bus Address selectable 0 to 99 Max 32 meters per line RS485 Transmit Delay Selectable for 2 to 50 msec or 50 to 100 msec RS485 17 ANALOG OUTPUT Types 0 to 20 mA 4 to 20 mA or 0 to 10 VDC Isolation To Sensor User Input Commons...

Страница 3: ... parameter and indexes to the next During Digital Tare this key stores the tare weight value keyed in KEY The Tare In Tare Out key both acquires and clears the Tare weight value The function of this key can be changed by setting the F1 function parameter For data entry this key is also used to increment a parameter value KEY The key Zero re zeros the Basic and Gross readout displays The function o...

Страница 4: ...as a basic millivoltmeter The basic indicator readout can then be post scaled to read out in weight units The indicator provides two ways in which to scale the display Key in Key in the input and display scaling points using known data Apply Apply the actual input value and key in the corresponding display value The indicator records the input value applied For processes that require linearity com...

Страница 5: ...ons Each time the batch function is executed the weight is added to the total and then zeroed PARAMETER LOCK MODE A user input can be used to lock the parameter list When the user input is active the indicator is in the protected parameter mode where it is only possible to access the setpoint values and the security code It is possible to lock the parameter list without using a user input as a pro...

Страница 6: ...deviation or band acting the effective trigger point is offset by SP1 In these modes SP1 acts as a master setpoint that the other setpoints track An alternate list of setpoint values can be stored and recalled as needed Select the alternate list with a function key or user input and program the setpoint values This allows for quick changeover for a new process condition Setpoint Alarm Hysteresis a...

Страница 7: ...eset Active Reset LIst Select main or alternate setpoint list r 1 Reset setpoint 1 r 2 Reset setpoint 2 USr 2 USr 1 User Input Function no no function pLOC Lock parameter list USr 3 rEL Acquire zero Settings 0 3 8 15 Active Reset Active Function Active Min Active Function Active Max Active Enable Active Enable Active Reset Active Total Active edge Batch Release from active Synchronize Active Hold ...

Страница 8: ...ale Factor sCfaC DESCRIPTION COMMENTS RANGE AND UNITS PARAMETER DISPLAY Tracking on reading band Tracking off reading 0 reading band PARAMETER MODULE 6 Setpoint Parameters DISPLAY PARAMETER RANGE AND UNITS DESCRIPTION COMMENTS act n Action for Setpoint ab HI absolute high balanced hysteresis SPSEL Select Setpoint Select setpoint for configuration Select operating action for setpoint See Figures fo...

Страница 9: ...sIN Output Source Assignment HI Max reading Select source of linear output signal If totalizer scaling limited to lower 5 digits tot Totalizer value 0 20 0 to 20 mA NEt Net weight b 6 Brutto Gross weight LO Min reading YES Enter sub menu t Tons NO None NO Disables parameter 0 False zero 6 Grams Print Options Line Print Units Suffix Opt UNIt tot Totalizer values 0oc Zero and ounces 6roSS Brutto Gro...

Страница 10: ...ers 5 tOt Totalizer Parameters 8 Out Analog Output Parameters 7 SrL Serial Communication Parameters DISPLAY PARAMETER USER SETTING FACTORY SETTING B 6 tArE BRUTTO GROSS DISPLAY TARE DISPLAY rEd Ent SP 3 SP 1 SETPOINT 3 SETPOINT 1 LOC LOC SP 4 SP 2 SETPOINT 4 SETPOINT 2 LOC LOC CodE SECURITY CODE 00000 OPEr HI t MOPERATING MODE MAX CAPTURE DELAY TIME b 6Nt 0000 0 LO t MIN CAPTURE DELAY TIME 0000 0 ...

Страница 11: ...rivers pens pencils etc to operate the keypad of the unit EMC GUIDELINES The indicator has been designed and tested to meet the requirements of EMC Directive 89 336 EEC However successful installations depend upon several factors These include cable routing termination of cable shields associated equipment etc Installation The indicator meets NEMA 4X IP65 requirements for indoor use when properly ...

Страница 12: ...med as a low acting alarm triggering on the Net liquid weight Each filling operation is started with a Tare Out Tare In sequence This opens the filling valve and when the target setpoint is reached the valve is shut off The valve remains off until a tare operation is repeated thereby restarting the filling operation The fourth output is connected in series with the fill output to disable filling d...

Отзывы: