Dwyer Instruments MPCJR, MPCJR-232, MPCJR-RC, MPCJR-485, MPCJR-RV User manual

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Series MPCJR Pump Controller

Installation and Operating Manual

Bulletin L-21

MERCOID A Division of Dwyer Instruments, Inc.

P.O. BOX 258 • MICHIGAN CITY, INDIANA 46361, U.S.A.

Phone: 219/879-8000 • Fax: 219/872-9057

www.dwyer-inst.com • e-mail: lit@dwyer-inst.com

FR# M1-443341-00 Rev. 3

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CONTENTS

4-1/2

[114.3]

17/32 [13.5]

3-19/32

[91.3]

3-25/32

[95.9]

3-25/32

[95.9]

MAX. PANEL THICKNESS 0.25 [6.35]

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Model Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-7

Front Panel Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8-9

Home Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Security Level Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Lead/Lag Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Analog Retransmission Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Serial Communication Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Menu Selections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Secondary Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Secure Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15-20

Alarm Type and Action. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17-19

Diagnostic Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21-22

Programming Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23-24

Programming Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25-27

DIMENSIONS

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SPECIFICATIONS

Inputs: 0 (or 4) to 20 mA DC or 0 (or 2.0) to 10.0 VDC selectable. Input Impedance: Current input: 10 ohms, Voltage input: 5K ohms. Output Ratings:

Control Relays: SPDT, rated 10A @ 240 VAC res., 1/4 hp @120 VAC, 1/3 hp @ 240 VAC; Alarm Relays: SPST, 3A @ 240 VAC res., 1/10 hp @ 120 VAC; Other: 15 VDC @ 20 mA for output one and output two.

Control Type: On/off, reverse or direct acting. Power Requirements: 100 to 240 VAC nominal, +10%-15%, 50 to 400 Hz,

single phase; 132 to 240 VDC nominal, +10%-15%.

Power Consumption: 7.5 VA maximum. Accuracy: ±0.25% of span, ±1 least significant digit. Display: Two 4-digit, 7 segment 0.56˝ high LED’s. Display Resolution: 1 count. Memory Backup: Nonvolatile memory (no batteries required). Serial Communications: Optional RS-232 or RS-485 with Modbus Ambient Operating Temperature / RH: 14 to 131°F (-10 to 55°C) / 0 to 90% up

to 104°F (40°C) non-condensing, 10 to 50% at 131°F (55°C) non-condensing.

Weight: 16 oz (454 g). Front Panel Rating: Meets UL Type 4X (IP66). Loop Power Supply (isolated): 24 VDC @ 50 mA, regulated. Alarm On-Off Differential: 1 count. Set Point Range: Selectable. Power Voltage Stability: 0.05% over the power voltage range. Temperature Stability: 100 ppm / °C typical, 200 ppm / °C maximum. Common Mode Rejection: 140 db minimum at 60 Hz. Normal Mode Rejection: 65 db typical, 60 db at 60 Hz. Isolation:

Relay: 1500 VAC to all other inputs and outputs; 24 VDC Loop Power: 500 VAC to other inputs and outputs; Process Output: 500 VAC to other inputs and outputs.

Storage Temperature: -40 to 176°F (-40 to 80°C). Agency Approvals: UL 508, CE.

protocol.

Modbus®is a registered trademark of Schnieder Automation.

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GETTING STARTED

1. Install the control as described on page 4.

2. Wire the control following the instructions on pages 5 through 7. Page 5 contains basic wiring for the control. If using the Series MPCJR’s transmitter power supply follow the additional directions on page 6. Wiring instructions for the 232 and 485 series communication options is included on page 7.

3. Familiarize yourself with the front key pad functions and read the menu structure prior to starting the programming process. A programming chart with the menu structure and spaces to write your programming values is included on pages 26 through 28. This chart can be a helpful tool to save time in programming. For further assistance programming examples are included on pages 28 through 31.

MODEL IDENTIFICATION

Model MPCJR -

Options

Options:

232

485

RS-232 Modus®-RTU Serial Communications. Allows remote computer to read and write all control parameters.

RS-485 Modbus®-RTU Serial Communications. Allows remote computer to read and write all control parameters.

Analog retransmission of input, 0 to 10 VDC.

Analog retransmission of input, 0 (or 4) to 20 mA.

Input Ranges Process Input Types

The 0 to 20 mA DC, 4 to 20 mA DC, 0 to 10 VDC, and 2 to 10 VDC inputs are fully scalable from a minimum of 100 count span placed anywhere within the range of -1999 to +9999. Decimal point position is adjustable from the zero place (9999), tenths (999.9), hundredths (99.99), or thousandths (9.999).

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INSTALLATION

Mount the instrument in a location that will not be subject to excessive temperature, shock, or vibration (see Specifications for specific tolerances). All models are designed for mounting in an enclosed panel.

Select the position desired for the instrument on the panel. Prepare the panel by cutting and deburring the required opening.

From the front of the panel, slide the housing through the cut out. The housing gasket should be against the housing flange before installing.

From the rear of the panel slide the mounting collar over the housing. Hold the housing with one hand and using the other hand, push the collar evenly against the panel until the springs are compressed. The ratchets will hold the mounting collar and housing in place.

Figure 1 – Panel Cut Out Dimensions

Panel cut-out:

3.620 x 3.620 in, +0.032/-0.000 (92 x 92 mm,

+0.8/-0.0)

CAUTION: It is not necessary to remove the instrument chassis from the housing for installation. If the instrument chassis is removed from the housing, you must follow industry standard practice for control and protection against Electro-Static Discharge (ESD). Failure to exercise good ESD practices may cause damage to the instrument.

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WIRING

Voltage

Current

Alarm 1

Contacts

Alarms 2

Contacts

24 VDC

@ 50 mA

Isolated

Pump 1

Output

Pump 2

Output

Line Input

100 to 240 VAC

50 - 400 Hz. Single PH

132 to 240 VDC 5VA

MAX. Output Ratings:

Relay: 10A. @ 240 VAC RES.

1/4 HP @ 120 VAC 1/3 HP @ 240 VAC

Alarm: 3A. @ 240 VAC RES.

P.D. 240VA, 120/240 VAC

SW. Volt.: 15 VDC @ 20 mA

NOTE:

1. For supply connections use No. 16 AWG or larger wires rated for at least 75°C, or in accordance with an equivalent national standard.

2. Maximum ambient temperature rating 131°F (55°C)

3. Use copper conductors only

4. Terminals 1-5, 10-12, & 21-32 are class 2 'SELV'.

15 VDC

323130292827

22 23

24 25

N.O.

COM.

N.O.

N.C.

COM.

CURRENT

RELAY & SSR

290-3126

COM.

Pump1

Pump2

Option RV, RC

Do not run transmitter wiring or other Class 2 wiring in the same conduit as power leads. Use only the probe or transmitter for which the control has been programmed. Maintain separation between wiring of sensor, auxiliary in or out, and other wiring. See the "Secure Menu" for input selection.

Supply connections should be made in accordance with the National Electrical Code per Article 300, and local regulations. All line voltage output circuits must have a common disconnect and be connected to the same pole of the disconnect. Input wiring for probe or transmitter is rated CLASS 2. Control wiring is as shown in Figure 2 below.

Figure 2 - Wiring

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Connect Jumper between terminals 3 and 12

Connect Transmitter Plus (+) to terminal 11

Connect Transmitter Minus (-) to terminal 5

Level Transmitter

WIRING FOR TRANSMITTER INPUTS USING INTEGRAL

SNUBBER

COIL OF RELAY

OR MOTOR STARTER

SWITCHED AC

(FROM CONTROLLER)

1-1/4

7/8

9/16 THICK

SNUBBER PHYSICAL

CHARACTERISTICS (TYPICAL)

3/8

POWER SUPPLY

Wire power and outputs as shown on previous page. Wiring for two-wire transmitters shown below in Figure 3. All wiring shown in Figure 3 is Class 2.

Figure 3 - Transmitter Wiring

Use of a fuse (1/8W Fast-Blow) in the loop is recommended to protect the control input circuitry.

For three or four wire transmitters follow the wiring instructions provided with your transmitter.

DO NOT wire the 24 Volt Power Supply across the input of the control. Damage to the control input circuitry will result.

USE OF SNUBBERS WITH INDUCTIVE LOADS

A snubber is a resistance/capacitance device that is used to reduce or eliminate high voltage spikes generated from inductive loads. For best effect, the snubber should be mounted as close to the coil as physically possible. Electrical and typical physical characteristics are shown above.

Failure to use a snubber on an inductive load may cause erratic operation and/or premature relay contact wear.

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WIRING FOR 485 AND 232 SERIAL COMMUNICATION OPTIONS

27 28

Terminal 29 30 31 32

Option 485 Y (receive -) Z (receive +) A (transmit -)* B (transmit +)*

Option 232 not used data out data ground data in

*For half-duplex operation wire only A and B. Do not connect to Y and Z.

Option 485 DIP Switch Positions*

Half Duplex* Full Duplex

1 2 3 4 5 6

1 2 3 4 5 6 7 8 9 10 11 12 13

14 15 16 17 18 19 20 21 22 23 24 25

DATA IN 30 DATA OUT 32 DATA GROUND 31

PIN DESCRIPTION 1 SHIELD 2 TRANSMIT 3 RECEIVE 4 RTS 5 CTS

PIN DESCRIPTION 6 DSR 7 GROUND 8 DCD 20 DTR

DB-25 WIRING

(VIEWED FROM WIRE SIDE)

1 2 3 4 5

6 7 8 9

RS-232 DB-9 WIRING

(VIEWED FROM WIRE SIDE)

PIN DESCRIPTION 1 DCD 2 RECEIVE 3 TRANSMIT 4 DTR 5 GROUND 6 DSR 7 RTS 8 CTS

DATA OUT 32 DATA IN 30 DATA GROUND 31

OFF

Wire power and outputs as shown on page 5. Wiring for options is shown in Figure 4 below. All wiring shown below is Class 2. Shielded twisted pair is recommended for Option 485.

DO NOT run signal wiring in the same conduit or chase as the power wiring. Erratic operation or damage to the control circuitry will result.

Figure 4 – Wiring for Options

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FRONT PANEL FUNCTIONS

Key functions are as follows:

INDEX: Pressing the INDEX key advances the display to the next menu

item. May also be used in conjunction with other keys as noted below.

UP ARROW: Increments a value, changes a menu item, or selects the item to ON. The maximum value obtainable is 9999 regardless of decimal point placement.

UP ARROW & ENTER: Pressing these keys simultaneously brings up the secondary menu starting at the SP 1H menu item. Pressing these keys for 5 seconds will bring up the secure menu.

DOWN ARROW: Decrements a value, changes a menu item, or selects the item to OFF. The minimum value obtainable is -1999 regardless of decimal point placement.

ENTER: The ENTER key is used to store the value of menu items once they are changed to a new value. If the ENTER key is not pressed after changing the value the item will revert to the previously stored value.

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INDEX & DOWN ARROW: Pressing these keys simultaneously will allow backing up one menu item, or if at the first menu item they will cause the display to return to the primary menu. If an alarm condition has occurred, these keys may be used to reset the alarm.

INDEX & ENTER: Pressing these keys simultaneously and holding them for 5 seconds allows recovery from the various error messages. The following menu items will be reset:

AL iH : Alarm inhibit CH EC C AL : Check calibration error

Correct the problems associated with the above conditions before using these reset keys. More than one error could be present. Caution is advised since several items are reset at one time.

The Home Display

The home display is the normal display while the control is operating. If no errors or functions are active, the HOME display will indicate the Process Variable (the

level that is being measured) on the top display and the S P1 H value, Pump 1 On Set Point, on the bottom display.

Error messages may over-ride the HOME display. See ERROR MESSAGES on pages 21 and 22.

While in the Secondary Menu, if no key is pressed for a period of 30 seconds, the display will return to the HOME position displaying the process value. While in the Secure Menu, if no key is pressed for a period of 60 seconds, the display will return to the HOME position displaying the process value. Outputs are disabled (turned off) when the Secure Menu is active.

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Security Level Selection

Three levels of security are provided. The S ECr menu item security level may be viewed or changed at any time regardless of the present security level in the Secure menu. The display shows the current security level. To change security levels change the password value using the UP ARROW or DOWN ARROW keys and pressing the ENTER key. Refer to the password table (following) for the correct value to enter for the security level desired.

To set the access level to, for example, 2, at the S EC r menu item press the

UP ARROW key until the upper display shows the password, 11 01 . Press the

ENTER key. The display will blink, and return with the level value, 2 ,in the

upper display.

The password values shown in the table cannot be altered. Retain a copy of these pages for future reference. This is the only reference made to password values in this instruction book.

Password Table

Secondary Secure Secondary Secure Secondary Secure

Security Level Status Locked Locked Unlocked Locked Unlocked Unlocked

Display Value When Viewed 2

Password Value to Enter 1101

1011

111

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Lead/Lag Operation

The Mercoid®MPCJR pump controller is designed to easily operate a pair of pumps in the most efficient manner possible. The controller has a 'lead/lag' feature that allows two pumps to operate in an alternating fashion to minimize wear.

The Mercoid

MPCJR pump controller has a pair of set points each for pump 1 and pump 2. If the lead/lag feature is turned off, S P 1H and SP1 L control pump 1 and SP 2 H and SP 2L control pump 2. If the lead/lag feature is turned on, pumps 1 and 2 will be controlled in the alternating fashion described below. In all cases the P1 lamp will

indicate activity of pump 1 and the P2 lamp will indicate activity of pump 2. The lead/lag operation is set in the Secure menu with the item Ld L g.

Lead/Lag On

After installation, set the SP 1H to the high level (pump on point) for standard operation. Set SP 1L to the low level (pump off point). Set the SP 2H to the level where you want BOTH pumps to turn on (emergency pump on). Set the S P2 L to the level

where you want the second pump to turn off (emergency pump off).

The controller will not allow you to set SP 1 H below SP 1L , S P 1L above SP 1 H, S P 2H below SP 2L , or S P2 L above SP 2H . The controller will not allow you to set any set

point or alarm point above or below the programmed scale. No error messages are generated. The displayed value will stop at an allowable point just above (or below, as the case may be) the maximum or minimum allowed.

In normal operation, when the S P1 H point is reached, one of the pumps will turn on. When lead/lag is turned on, pumps 1 and 2 will alternate. If the level reaches the SP 2H point, both pumps will be turned on until the S P 2L point is reached, where one

of the pumps will turn off. When S P1L is reached, remaining running pump will turn off. The last pump off will not be the next pump on.

Lead/Lag Off

If lead/lag is turned off, S P 1H and SP 1L control pump 1 and S P2 H and S P 2L control pump 2. There is no alternating function.

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OPERATION RV, RC ISOLATED ANALOG RETRANSMISSION

The analog retransmission option allows the Process Variable or the Set Variable to be sent as an analog signal to an external device. The signal may be either 0 to 10 VDC (Option RV) or 0 (or 4) to 20 mA DC (Option RC). The output may be changed in the field from one to the other by the toggle switch located on the top printed circuit board.

Wire the output as shown on page 5.

To set up the analog retransmission, first determine the scale range that the analog signal will represent. The maximum scale is 9999 counts. In the Secondary Menu

set PO L for the the scale value that will be represented by the low end of the analog signal (0 Volts or 0 mA). Set PO H for the scale value that will be represented by the

high end of the analog signal (10 Volts or 20 mA).

If you require a suppressed scale or output, you may use the following equations to determine the proper settings for P O L and PO H .

K= (Highest desired scale reading - Lowest desired scale reading)/(Maximum desired analog signal - Minimum desired analog signal). POH= ((Maximum possible analog output - Maximum desired analog signal) *K) + Highest desired analog reading. POL = Lowest desired scale reading - ((Minimum desired analog output) *K).

Operation is automatic. There are no further programming steps required.

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OPTION 232, 485 SERIAL COMMUNICATION OPERATION

The serial communications options allow the control to be written to and read from a remote computer or other similar digital device. Communication is allowed either through a RS-485 (Option 485) port, or a RS-232 (Option 232) port.

Wire the communication lines as shown on Page 7. Wiring for the RS-485 is run from control to control in a daisy chain fashion with a termination resistor (120 ohms) across the transmit and receive terminals of the last control in the chain. Set the RS-485 DIP switch for half or full duplex as appropriate for your application. The DIP switch is located on the communications board plugged into the center of the bottom board of the control.

Select the control address and communication baud rate with the A ddr and bA Ud menu items in the Secure Menu. THE BAUD RATE AND ADDRESS MENU ITEMS WILL TAKE EFFECT ON THE NEXT POWER UP OF THE CONTROL. BE SURE TO POWER CYCLE THE CONTROL BEFORE USING THE NEW BAUD RATE AND ADDRESS.

In operation, you have the option of preventing a write command from the host computer. To prevent the host from writing to the control change the L O rE menu item in the Secondary Menu to LO C . To allow the host to write commands to the control set L Or E to r E. (The host does have the ability to change the L Or E state, but it is not automatic.)

If your system depends on constant reading or writing to and from the host, you may wish to set the No Activity Timer (nA t ) to monitor the addressing of the control. When the L O rE is set to rE and the n At is set to any value other than O FF , the control will expect to be addressed on a regular basis. If the control is not addressed in the time set by the value of nA t , then the control will display the error message C H EC L Or E . To clear the message set L Or E t o LO C .

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MENU SELECTIONS Notation Conventions for the Menus

Because of the number of features available in this control, information is included that may not apply to your specific control. All usable features are included in this book, but may not be used in your process. To increase clarity the following conventions are used:

1. Certain features or functions shown in this book are contextual. This means that Menu Items may or may not appear, depending on other Menu Item selections. Whenever this occurs, a notation is made in the Menu Item that "controls" or "directs" other menu items. If you are looking for a particular menu item and can't find it, check the menu item that is its "control" for proper setting.

2. The "#" symbol is used in two ways. It is used inside a group of characters to indicate which set point function (SP1 or SP2) is being affected. It is also used before a group of characters of a menu item to indicate that there may be more than one selection or value for that menu item.

Secondary Menu

Press the UP ARROW and Enter keys to start the menu. Press

INDEX to advance to the next menu item. Press UP ARROW or DOWN

ARROW to change the value in the display. Press ENTER to retain the

value.

SP 1H Pump 1 On Set Point. Factory Default 23 .1 (feet).

SP 1L Pump 1 Off Set Point. Factory Default - 5 .7 (feet).

SP 2H Pump 2 On Set Point. Factory Default 23 .1 (feet).

SP 2L Pump 2 Off Set Point. Factory Default - 5 .7 (feet).

A1 Hi Alarm 1 High: Factory Default 2 3 .1 (feet).

A2 Lo Alarm 2 Low: Factory Default 2 .0 (feet).

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Secure Menu

Press the UP ARROW and Enter keys for 5 Seconds to start the menu.

Press INDEX to advance to the next menu item. Press UP ARROW or

DOWN ARROW to change the value in the display. Press ENTER to retain

the value. OUTPUTS ARE DISABLED (TURNED OFF) WHILE CONTROL IS IN

THE SECURE MENU.

SE Cr Security Code: See the Security Level Selection and the Password Table

on page 10, in order to enter the correct password. Factory Default is 4 .

In P Input Type: Select one of the following. Refer to the Input wiring section for

the proper wiring. Factory Default is C u rr .

Cu rr DC Current Input 0.0 to 20.0 or 4.0 to 20.0 mA. UO Lt DC Voltage Input 0.0 to 10.0 or 2.0 to 10.0 volts.

- - - - Reserved

In PC Input Correction: Select ±500 counts. This feature allows the input value to

be changed to agree with an external reference or to compensate for sensor error. Note: I n PC is reset to zero when the input type is changed, or when decimal position is changed.

Ld Lg Lead / Lag: Select O n or O F F. Factory default is O n. (See page 11).

On The Lead/Lag function is enabled. The outputs of S P1 and S P2

will alternate.

OF F The Lead/Lag function is disabled.

OS UP Zero Suppression: Select On or O FF . Factory default is O F F.

OF F The input range will start at 0 (zero) Input. On The input range will start at 4.00 mA or 2.00 V.

dP T Decimal Point Positioning: Select 0 , 0. 0, 0 . 00 , or 0 .0 0 0. All Menu items

related to the input will be affected. Factory default is 0 .0 .

PE A The Peak feature stores the highest input the control has measured since

the last reset or Power On. At Power On P EA is reset to the present input. To manually reset the value P EA must be in the lower display. Press the ENTER key to reset. P E A will be reset and display the present input value.

UA L The Valley feature stores the lowest input the Controller has measured

since the last reset or Power On. At Power On UA L is reset to the present input. To manually reset the value U AL must be in the lower display. Press the ENTER key. U AL will be reset and display the present input value.

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SC AL Scale Low: Select 1 00 to 99 99 counts below SC AH . The total span

between S C AL and S CA H must be within 11998 counts. Maximum setting range is - 1 9 99 to + 99 99 counts. Factory Default is - 5. 7.

SC AH Scale High: Select 1 00 to 99 99 counts above S CA L . The total span

between S C AL and S CA H must be within 11998 counts. Maximum setting range is - 1 9 99 to + 99 99 counts. Factory Default is 2 3 .1 .

S P L Set Point Low: Select from the lowest input range value to S PH value. This

will set the minimum SP 1 L or SP 2 L value that can be entered. The value for S P 1L or S P2 L will stop moving when this value is reached. Factory Default is -5 .7 .

SP H Set Point High: Select from the highest input range value to SPL value. This

will set the maximum S P1 H or S P2 H value that can be entered. The value for SP 1 H or S P2 H will stop moving when this value is reached. Factory Default is 2 3.1 .

S1 St Set Point 1 State: Select P i n or PO ut. Factory default is P O ut .

P i n Pump In (Direct Action). As the input increases the output

will increase.

PO ut Pump Out (Reverse Action). As the input increases the output

will decrease.

5I LP P1 Lamp: Select 0 o n or OoF F. Factory default is 0 on .

0 o n Lamp ON when Output is ON. Oo FF Lamp OFF when Output is ON.

S2 St Set Point 2 State: Select P I n, PO u t or O F F. Factory default is PO ut .

P i n Pump In (Direct Action). As the input increases the output

will increase.

PO ut Pump Out (Reverse Action). As the input increases the output

will decrease.

52 LP P2 Lamp: Select 0 o n or O oF F. Factory default is 0 on .

0 o n Lamp ON when Output is ON. Oo FF Lamp OFF when Output is ON.

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ALARM TYPE AND ACTION

ABSOLUTE ALARMS

DEVIATION ALARMS

CAUTION: In any critical application where failure could cause expensive product

loss or endanger personal safety, a redundant limit controller is required.

When setting an alarm value for an absolute alarm (A 1 t = A bS or A2 t = Ab S ), simply set the value at which the alarm is to occur.

When setting the alarm value for a deviation alarm (A 1 t = d E o r A2 t = dE ), set the difference in value from the Set Point (S P1 H) desired.

Since the input for the MPCJR is driven from a transmitter, the input display can be programmed in different ways. Regardless of the position of the decimal point, a change of one in the right most digit is referred to as a count. For example, if there were no decimal point selected, a change from 235 to 236 is a change of one count.

If the decimal point were selected at 0 . 0, a change of 23.5 to 23.6 is a change of one count.

The following diagram (below) shows the action and reset functions for both absolute and deviation alarms.

When setting up an alarm for deviation the deviation is set in counts. For example if a low alarm is required to be 5 counts below the S P 1H , then set A #L o to -5. If a high alarm is required 20 counts above the S P 1H , then set A# H i to +20. If S P1H is changed, the alarm will continue to hold the same relationship as originally set.

When Alarm Power Interrupt, A # Pi , is programmed ON and Alarm Reset, A# rE , is programmed for Hold, the alarm will automatically reset upon a power failure and subsequent restoration if no alarm condition is present.

If Alarm Inhibit, A# iH , is selected ON, an alarm condition is suspended upon power

up until the process value passes through the alarm set point once. Alarm inhibit

can be restored as if a power up took place by pressing both the INDEX and

ENTER keys for 5 seconds.

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WARNING: IF INHIBIT IS ON AND A POWER FAILURE OCCURS DURING A HIGH ALARM, RESTORATION OF POWER WILL NOT CAUSE THE ALARM TO OCCUR IF THE PROCESS VALUE DOES NOT FIRST DROP BELOW THE HIGH ALARM SETTING. DO NOT USE THE ALARM INHIBIT FEATURE IF A HAZARD IS CREATED BY THIS ACTION. BE SURE TO TEST ALL COMBINATIONS OF HIGH AND LOW ALARM INHIBIT ACTIONS BEFORE PLACING CONTROL INTO OPERATION.

The following menu items apply only to the alarms.

AL 1 Alarm 1 function: Select O FF , L o , H

, or HILo , Factory default is Hi .

OF F Alarm 1 is disabled. No Alarm 1 menu items appear in the

Secondary or Secure menus.

Lo Low Alarm Only. A 1L o appears in the Secondary Menu.

High Alarm Only. A 1H i appears in the Secondary Menu.

Hi Lo High and Low Alarms. Both A 1 Lo and A 1H i appear in the

Secondary Menu, and share the same Alarm 1 Relay output.

If A L 1 is set to O F F, go to A L 2 on the next page.

AL t Alarm 1 Type: Select A b S or dE . Factory default is A b S.

Ab S Absolute Alarm that may be set anywhere within the values of

SC AL and SC AH and is independent of S P 1H .

dE Deviation Alarm that may be set as an offset from S P1 H. As

SP 1H is changed the Alarm Point will track with SP 1H .

A1 rE Alarm 1 Reset: Select O nO F or Ho ld . Factory default is O n OF .

On OF Automatic Reset. Ho ld Manual Reset. Reset (acknowledge) by simultaneously pressing

the INDEX & DOWN ARROW keys for 5 seconds.

A1 Pi Alarm 1 Power Interrupt: Select O n or O F F. Factory default is O F F.

On Alarm Power Interrupt is O n. OF F Alarm Power Interrupt is OF F.

A1 iH Alarm 1 Inhibit: Select O n or OF F. Factory default is O FF .

On Alarm Inhibit is On . Alarm action is suspended until the process

value first enters a non-alarm condition.

OF F Alarm Inhibit is O FF .

A1 St Alarm 1 Output State: Select C LOS or O PE n . Factory default is C LOS .

CL OS Closes Contacts at Alarm Set Point. OP En Opens Contacts at Alarm Set Point.

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A1 LP Alarm 1 Lamp: Select O o n or Oo FF . Factory default is O on.

O o n Alarm Lamp is ON when alarm contact is closed. Oo FF Alarm Lamp is OFF when alarm contact is closed.

AL 2 Alarm 2 function: Select O F F, L o, H i, or H iL o . Factory default is L o .

OF F Alarm 2 is disabled. No Alarm 2 menu items appear in the

Secondary or Secure menus.

Lo Low Alarm Only. A 2L o appears in the Secondary Menu. Hi High Alarm Only. A 2H i appears in the Secondary Menu. Hi Lo High and Low Alarms. Both A 2 Lo and A 2H i appear in the

Secondary Menu, and share the same Alarm 2 Relay output.

If A L 2 is set to O FF the remaining A2, alarm 2, menu items do not appear.

A2 t Alarm 2 Type: Select A b S or dE . Factory default is A b S.

Ab S Absolute Alarm that may be set anywhere within the values of

SC AL and SC AH and is independent of S P1 H .

dE Deviation Alarm that may be set as an offset from S P1 H. As S P1 H

is changed the Alarm Point will track with S P 1H .

A2 rE Alarm 2 Reset: Select On OF or H o ld . Factory default is On OF .

On OF Automatic Reset. Ho ld Manual Reset. Reset (acknowledge) by simultaneously pressing

the INDEX & DOWN ARROW keys for 5 seconds.

A2 Pi Alarm 2 Power Interrupt: Select O n or O FF . Factory default is OF F.

On Alarm Power Interrupt is ON. OF F Alarm Power Interrupt is OFF.

A2 i H Alarm 2 Inhibit: Select O n or O FF . Factory default is OF F.

On Alarm Inhibit is On. Alarm action is suspended until the process

value first enters a non-alarm condition.

OF F Alarm Inhibit is OFF.

A2 St Alarm 2 Output State: Select CL OS or O P En . Factory default is C L OS .

CL OS Closes Contacts at Alarm Set Point. OP En Opens Contacts at Alarm Set Point.

A2 LP Alarm 2 Lamp: Select O o n or Oo FF. Factory default is O o n .

O o n Alarm Lamp is ON when alarm contact is closed. Oo FF Alarm Lamp is OFF when alarm contact is closed.

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Fi Lt Digital Filter: Select O FF or 1 to 9 9. In some cases the time constant of

the sensor, or noise could cause the display to jump enough to be unreadable. If this value is set too high, controllability will suffer. Factory

default is 3 .

The remaining menu items appear if the corresponding option was purchased with the control.

PO L (Analog Retransmission Output, see page 13) Process Output

Low: Select -1999 counts to any value less than P O H. Factory default is

-5. 7.

PO H (Analog Retransmission Output, see page 13) Process Output High:

Select from any value greater than P O L to 9999 counts. Factory default is 2 3 .1 .

LO rE (Option 232 and 485, Serial Communications) Local / Remote Status:

Select L O C or rE . Factory default is r E . LO C The host computer is advised not to send remote commands. Any

write commands sent to the controls will be rejected.

rE The host computer is allowed to send write commands. If the control

is not addressed within the time set in the nA t (No Activity Timer, see Secure Menu) the C HEC L or E error message will be displayed.

Ad dr (Option 232 or 485, Serial Communications) Control Address: Set from

1 to FF . This number (hexadecimal, base 16) must match the address number used by the host computer. Factory default is 3 2.

bA Ud (Option 232 or 485, Serial Communications) Communication Baud Rate:

Select 3 0 0, 12 00 , 24 00 , 4 80 0, 9 6 00 , or 19 200 . This number must match the baud rate used by the host computer. Factory default is 9 60 0 .

nA t (Option 232 or 485, Serial Communications) No Activity Timer: Set from

OF F or 1 to 99 minutes. Factory default is O FF . 1 - 99 Maximum time between host computer accesses. If timer counts

to 0, C HE C/ Lo rE will be displayed.

OF F No Activity Timer function is disabled.

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DIAGNOSTIC ERROR MESSAGES

DISPLAY

display

lighted

FA IL

tE St

CH EC

Lo rE

MEANING

Display is blank. Instrument is not getting power, or the supply voltage is too low.

Fail test appears upon power up if the internal diagnostics detect a failure. This message may occur during operation if a failure is detected. Displays flash.

This message appears if the Serial Communications has timed out.

SP OUTPUTS

Set point

outputs inactive

Alarms inactive

Set point

outputs inactive

Alarms inactive

Set point

outputs active

Alarms inactive

ACTION REQUIRED

Check that the power supply is on, or that the external fuses are good.

The display alternates between F A IL t ES t and one of the following messages: F A Ct d FL t: Memory may be corrupted.

Press the ENTER key and the DOWN ARROW key to start the factory default procedure. Recheck controller programming.

rE t FA Ct : Unrecoverable error, return to factory for service.

Restore the communications line and

switch the L or E to L OC .

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DIAGNOSTIC ERROR MESSAGES

DISPLAY

UF L

OF L

CH EC C AL

MEANING

Underflow or Overflow: Process value has exceeded input range ends.

Check calibration appears as an alternating message if the instrument calibration nears tolerance edges.

Check calibration appears as a flashing message if the instrument calibration exceeds specification.

SP OUTPUTS

Set point

outputs active

Alarms active

Set point

outputs active

Alarms active

Set point

outputs

inactive

Alarms active

ACTION REQUIRED

Input signals may normally go above or below range ends. If not, check input and correct.

Remove the instrument for service and / or recalibration. To reset use the INDEX & ENTER keys.

Ar EA

(Alternates

with PV)

Ar EA

This message appears if the ambient temperature of the control approaches the ends of tolerance.

This message appears if the ambient temperature of the control is out of range or RJC sensor is broken.

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Set point

outputs active

Alarm active

Set point

outputs active

Alarms active

Correct the ambient temperature conditions. Ventilate the area of the cabinet or check for clogged filters. If RJC broken, return to factory for service.

PROGRAMMING CHART

Use the charts on this and the next page to record the values in your application. You may want to photocopy the pages if you plan to make programming changes.

Primary

Secondary

Secure

ITEM

PU SP I H

ITEM

SP IH

SP IL SP 2H SP 2L

A1 Hi

A2 Lo

ITEM

SE Cr

In P

In PC Ld L9 05 UP

dP t PE A

UA L SC AL SC AH

SP L

SP H

SI St

Si LP

52 5t

52 LP

DEFAULT SET AT DESCRIPTION

Home Position, Process Variable & SP1H's Value displayed

DEFAULT

23 .1

-5 .7 23 .1

2. 0

DEFAULT

Cu rr

0. 0 On

OF F

0. 0 XX

SET AT DESCRIPTION

Set Point 1 value (default is in feet) Set Point 1 off value (default is in feet) Set Point 2 value (default is in feet) Set Point 2 off value (default is in feet) Alarm 1 (high) value (default is in feet) Alarm 2 (low) value (default is in feet)

SET AT DESCRIPTION

-5 .7 23 .1

-5 .7

Valley, lowest input value seen Scale Low value (default is in feet) Scale High value (default is in feet) Set Point Low value (default is in feet) since last reset

23 .1

PO ut

Set Point High value (default is in feet) Set Point 1 State (selectable POut (Pumping Out) or PIn (Pumping In)) Set Point 1 Lamp Condition when contact is closed (selectable on or off)

PO ut

Set Point 2 State (selectable POut (Pumping Out), PIn (Pumping In), or off) Set Point 2 Lamp Condition when contact is closed (selectable on or off)

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Continued on next page

Secure

ITEM

AL I

AL t

A I r E

A I P i

A I i H

A I S T

A I L P

AL 2

A2 t

A2 rE

A2 Pi

A2 iH

A2 St

A2 LP

F I L t

PO L PO H

LO rE

Ad dr

bA Ud

nA t

St or

DEFAULT

Ab S

On OF

OF F

CL OS

O o n

Ab s

On OF

OF F

CL OS

Oo n

-5 .7 23 .1

96 00

OF F

YE S

SET AT DESCRIPTION

Alarm 1 Function (selectable off, lo, hi, or hilo) Alarm Type 1 (selectable abs (absolute) or de (deviation)) Alarm 1 Reset (selectable onof (auto) or hold (manual)) Alarm 1 Power Interrupt (selectable on or off) Alarm 1 Inhibit (selectable on or off) Alarm 1 Output State (selectable close or open) Alarm 1 Lamp condition when contact is closed (selectable on or off) Alarm 2 function ( selectable off, lo, hi, or hilo) Alarm 2 Type (selectable abs (absolute) or de (deviation)) Alarm 2 Reset (selectable onof (auto) or hold (manual)) Alarm 2 Power Interrupt (selectable on or off) Alarm 2 Inhibit (selectable on or off) Alarm 2 Output State (selectable close or open) Alarm 2 Lamp condition when contact is closed (selectable on or off) Digital Filter Process Output Low (default is in feet) Process Output High (default is in feet) Local/Remote for computer communications Control Address for computer communications Baud Rate for computer communications No Activity Timer for computer communications Store Menu for Hi speed writes (selectable yes or no

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PROGRAMMIMG EXAMPLE

Example:

• Keep Empty, two pump (duplex)

• Depth 25 feet

• Pump 1: Start at 6 feet

Stop at 3 feet

Pump 2: Start at 12 feet

Stop at 9 feet

• Low level alarm: 1 foot, fixed, auto reset

• High level alarm: 20 feet, fixed, auto reset

• Want Lead/Lag function on

• No communication options

• Want 4-20 mA

retransmission

• Using with a 4-20 mA input.

EXAMPLE PROGRAMMING CHART

Secondary

ITEM

SP IH

SP IL SP 2H SP 2L

A1 Hi

A2 Lo

DEFAULT

23 .1

-5 .7 23 .1

2. 0

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SET AT

6. 0

3. 0

12 .0

9. 0

20 .0

1. 0

DESCRIPTION

EXAMPLE PROGRAMMING CHART continued

Secure

ITEM

SE Cr

In PC Ld L9 05 UP

dP t PE A

UR L SC AL SC AH

SP L

SP H

SI St

SI LP

52 5t

52 LP

In P

DEFAULT

Cu rr

0. 0 On

OF F

0. 0 XX

-5 .7 23 .1

-5 .7

23 .1

PO ut

SET AT

Cu rr

0. 0 On On

0. 0

25 .0

PO ut

DESCRIPTION

Security Selection Input (selectable current or voltage) Input Correction Lead/Lag (selectable on or off) Zero Suppression (selectable on or off) Decimal Point Positioning Peak, highest input value seen since last reset Valley, lowest input value seen Scale Low value (default is in feet) Scale High value (default is in feet) Set Point Low value (default is in feet) since last reset Set Point High value (default is in feet) Set Point 1 State (selectable POut (Pumping Out) or PIn (Pumping In)) Set Point 1 Lamp Condition when contact is closed (selectable on or off) Set Point 2 State (selectable POut (Pumping Out), PIn (Pumping In), or off) Set Point 2 Lamp Condition when contact is closed (selectable on or off)

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EXAMPLE PROGRAMMING CHART continued

Secure

ITEM

AL I

A L t

A I r E

AI Pi

AI iH

AI ST

AI LP

AL 2

A2 t

A2 rE

A2 Pi

A2 iH

A2 St

A2 UL P

FI Lt

PO L PO H

DEFAULT

Ab S

On OF

OF F

CL OS

O o n

Ab s

On OF

OF F

CL OS

Oo n

-5 .7 23 .1

SET AT

Ab S

On OF

OF F

CL OS

O o n

Ab s

On OF

OF F

CL OS

Oo n

0. 0

25 .0

DESCRIPTION

MERCOID A Division of Dwyer Instruments, Inc.

P.O. BOX 258 • MICHIGAN CITY, INDIANA 46361, U.S.A.

Phone: 219/879-8000 • Fax: 219/872-9057

www.dwyer-inst.com • e-mail: lit@dwyer-inst.com

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Dwyer Instruments MPCJR, MPCJR-232, MPCJR-RC, MPCJR-485, MPCJR-RV User manual

Specifications and Main Features

Frequently Asked Questions

User Manual