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Mercoid MPC Series Installation And Operating Manual

Pump controller
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Bulletin L-20
Series MPC Pump Controller
Installation and Operating Manual
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 # MI-443247-00, Rev. 1

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  • Page 1 Bulletin L-20 Series MPC Pump Controller Installation and Operating Manual 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 # MI-443247-00, Rev. 1...

  • Page 2: Table Of Contents

    CONTENTS Dimensions ............. 1 Specifications.

  • Page 3: Specifications

    SPECIFICATIONS Inputs: 4 to 20 mA DC or 2.0 to 10.0 V DC selectable. Input Impedance: Current input: 10 ohms, Voltage input: 100K 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.

  • Page 4: Getting Started

    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 MPC’s transmitter power supply follow the additional directions on page 6.

  • Page 5: Installation

    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 cut- ting and deburring the required opening.

  • Page 6: Wiring

    WIRING 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"...
  • Page 7 WIRING FOR TRANSMITTER INPUTS USING INTEGRAL POWER SUPPLY Wire power and outputs as shown on previous page. Wiring for two-wire transmit- ters shown below in Figure 3. All wiring shown in Figure 3 is Class 2. Figure 3 - Transmitter Wiring Connect Jumper between terminals 2 and 12 Connect Transmitter Plus (+) to terminal 11 Connect Transmitter...

  • Page 8: Wiring

    WIRING FOR 485 AND 232 SERIAL COMMUNICATION OPTIONS 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.

  • Page 9: Front Panel Functions

    FRONT PANEL FUNCTIONS Key functions are as follows: INDEX: Pressing the INDEX key for 2 seconds will bring up the Secondary menu starting at the S S P P 1 1 H H menu item. Holding the key for 5 sec- onds will bring up the Secure menu starting with the menu item S S E E C C r.

  • Page 10: Home Display

    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 &...

  • Page 11: Security Level Selection

    SECURITY LEVEL SELECTION Three levels of security are provided. The S S E E C C r r 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...

  • Page 12: Lead/Lag Operation

    The Mercoid MPC pump controller has a pair of set points each for pump 1 and pump 2. If the lead/lag feature is turned off, S S P P 1 1 H H and S S P P 1 1 L L control pump 1 and S S P P 2 2 H H and S S P P 2 2 L L control pump 2.

  • Page 13: Over Temperature Operation

    The thermostat has a preset value from the pump manufactur- er at which point the pump needs to be shut down. The Mercoid MPC detects when the thermostat signal changes to open and shuts down the pump.

  • Page 14: Analog Retransmission Operation

    over temperature condition has ceased. Once the pump has cooled down the MPC Pump Controller can be reset with the values of P P 1 1 O O T T and P P 2 2 O O T T in the Secondary menu. The item P P 1 1 O O T T or P P 2 2 O O T T will display F F A A I I L L if the pump has met the condition of over temperature.

  • Page 15: Serial Communication Operation

    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.

  • Page 16: Menu Selections

    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 con- ventions are used: 1.
  • Page 17 P P 1 1 r r n n Pump 1 Run Time: Total ON Time for Pump 1 in HOURS since last reset (0000 - 9999 hours). Pump 2 Run Time: Total ON Time for Pump 2 in HOURS since last reset P P 2 2 r r n n (0000 - 9999 hours).

  • Page 18: Secure Menu

    Secure Menu Press the INDEX key 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.
  • Page 19 O O S S U U P P Zero Suppression: Select O O n n or O O F F F F . Factory default is O O n n . The input range will start at 0 (zero) Input. O O F F F F O O n n The input range will start at 4.00 mA or 2.00 V.
  • Page 20 P P r r S S t t Pump Run Time Reset: Select O O N N or O O F F F F . Selecting O O N N will allow Pump Run Time to be reset in the Secondary menu while an O O F F F F selection will not allow Pump Run Time to be reset.

  • Page 21: Alarm Type And Action

    ALARM TYPE AND ACTION 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 A 1 1 t t = A A b b S S or A A 2 2 t t = A A b b S S ), simply set the value at which the alarm is to occur.
  • Page 22 H H i i High Alarm Only. A A 1 1 H H i i appears in the Secondary Menu. High and Low Alarms. Both A A 1 1 L L o o and A A 1 1 H H i i appear in the H H i i L L o o Secondary Menu, and share the same Alarm 1 Relay output.
  • Page 23 A A L L 2 2 Alarm 2 function: Select O O F F F F , L L o o , H H i i , or H H i i L L o o . Factory default is L L o o . Alarm 2 is disabled.
  • Page 24 Digital Filter: Select O O F F F F or 1 1 to 9 9 9 9 . In some cases the time constant of F F i i L L t t the sensor, or noise could cause the display to jump enough to be unreadable.

  • Page 25: Diagnostic Error Messages

    DIAGNOSTIC ERROR MESSAGES DISPLAY MEANING SP OUTPUTS ACTION REQUIRED Display is blank. Set point Check that the power sup- display Instrument is not outputs inactive ply is on, or that the exter- lighted getting power, or Alarms inactive nal fuses are good. the supply volt- age is too low.

  • Page 26: Diagnostic Error Messages

    DIAGNOSTIC ERROR MESSAGES DISPLAY MEANING SP OUTPUTS ACTION REQUIRED Underflow or Set point Input signals may normally U U F F L L Overflow: outputs active go above or below range Process value Alarms active ends. If not, check input O O F F L L has exceeded and correct.

  • Page 27: Programming Chart

    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. MENU ITEM DEFAULT SET AT DESCRIPTION Primary PV SP1H XXXX Home Position, Process Variable &...
  • Page 28 MENU ITEM DEFAULT SET AT DESCRIPTION AUtO Pump Seal Failure controller action (selectable automatic or manual reset) TESt System Test (Selectable on or off) PrSt Pump Run Time Rest (Selectable on or off) 23.1 Set Point High value (default is in feet) Set Point Low value (default is in feet) S1PI Set Point 1 Power Interrupt...
  • Page 29 MENU ITEM DEFAULT SET AT DESCRIPTION Process Output Low (default is in feet) LorE Local/Remote for computer communications Addr Control Address for computer Secure communications bAUd Baud Rate for computer communications No Activity Timer for computer communications Stor Store Menu for Hi speed writes (selectable yes or no)

  • Page 30: Programming Example

    PROGRAMMING 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 •...
  • Page 31 EXAMPLE PROGRAMMING CHART continued MENU ITEM DEFAULT SET AT DESCRIPTION SECr Security Selection SCAH 23.1 Scale High value (default is in feet) 25.0 SCAL Scale Low value (default is in feet) Decimal Point Positioning S1St POut Set Point 1 State (selectable POut P0ut (Pumping Out) or PIn (Pumping In)) S2St...
  • Page 32 25.0 23.1 Process Output High (default is in feet) Process Output Low (default is in feet) 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 Copyright 2003 by Dwyer Instruments Inc.

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