Omega Products MD40P Installation Manual

CONTROLS

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Instruction Manual

Field Programmable Closed Loop DC Speed Control

LT74 (0809)

MD PLUS SERIES

P.O. Box 10 5000 W. 106th Street Zionsville, Indiana 46077

Phone (317) 873-5211

Fax (317) 873-1105

www.dartcontrols.com

A-5-3453C

Quick Jump

What models and options are available? See page 38.

Looking for detailed speciﬁ cations? See page 38 & 39.

Want to get started fast? See basic electrical hook-up details on page 6. See mechanical installation details on page 3,4 & 5. See some sample applications starting on page 34.

Need Help? See troubleshooting on page 37.

Warranty

Dart Controls, Inc. (DCI) warrants its products to be free from defects in material and workmanship. The exclusive remedy

for this warranty is DCI factory replacement of any part or parts of such product which shall within 12 months after delivery to the purchaser be returned to DCI factory with all transportation charges prepaid and which DCI determines to its satisfaction to be defective. This warranty shall not extend to defects in assembly by other than DCI or to any article which has been repaired or altered by other than DCI or to any article which DCI determines has been subjected to improper use. DCI assumes no responsibility for the design characteristics of any unit or its operation in any circuit or assembly. This warranty is in lieu of all other warranties, express or implied; all other liabilities or obligations on the part of DCI, including consequential damages, are hereby expressly excluded.

NOTE: Carefully check the control for shipping damage. Report any damage to the carrier immediately. Do not attempt to operate the drive if visible damage is evident to either the circuit or to the electronic components.

All information contained in this manual is intended to be correct, however information and data in this manual are subject to change without notice. DCI makes no warranty of any kind with regard to this information or data. Further, DCI is not responsible for any omissions or errors or consequential damage caused by the user of the product. DCI reserves the right to make manufacturing changes which may not be included in this manual.

WARNING Improper installation or operation of this control may cause injury to personnel or control failure. The control must be installed in accordance with local, state, and national safety codes. Make certain that the power supply is disconnected before attempting to service or remove any components!!! If the power disconnect point is out of sight, lock it in disconnected position and tag to prevent unexpected application of power. Only a qualiﬁ ed electrician or service personnel should perform any electrical troubleshooting or maintenance. At no time should circuit continuity be checked by shorting terminals with a screwdriver or other metal device.

Table of Contents

Introduction ....................................................................................................................................... 2

General Features .............................................................................................................................. 2

Installation and Mechanical Dimensions ....................................................................................... 3

Exploded Panel View .................................................................................................................... 3

Cut-out and Mounting Dimensions ............................................................................................... 4

PU-E Series Pickup Installation .................................................................................................... 5

Dimensions ................................................................................................................................... 5

P1 Terminal Block Hook-Up Diagrams .......................................................................................... 6

MD40P / MD50P / MD50E P1 Terminal Block Descriptions ......................................................... 7

-1 Option Wiring ............................................................................................................................ 7

OPT420 Installation & Diagrams ..................................................................................................... 8

Installing the OPT420 in Slot 200 (ONLY!) of the Host Drive ........................................................ 8

OPT420 P3 & P6 Terminal Block Hook-Up Diagrams .................................................................. 8

OPT 420 HOOK-UP DIAGRAM (TYPICAL) ................................................................................. 9

OPT420 P3 Terminal Block Descriptions ..................................................................................... 9

OPT420 P6 Terminal Block Descriptions ..................................................................................... 9

Basic Operating Instructions ........................................................................................................ 10

Control Algorithm Discussion and P-I-D Tuning .......................................................................... 10

Master (Rate and Time) and Follower (Ratio) Modes Explained ................................................ 10

Visual Reference ........................................................................................................................ 11

How to Change an Item's Value (The Short Story) ..................................................................... 11

Operating the User Interface (The Long Story) .......................................................................... 11

Detailed Conﬁ guration Instructions ............................................................................................. 12

MD plus Default Conﬁ guration ................................................................................................... 12

Resetting the MD plus to Factory Defaults ................................................................................ 12

JP1 (Program Enable Jumper) .................................................................................................. 12

Setting and Reading "SoftSwitches" ........................................................................................... 13

Setting and Reading "Alarm" Conditions .................................................................................... 14

"Alarm" Output Routing .............................................................................................................. 14

MD plus Alarm "Logic" ............................................................................................................... 15

Software Parameters (Items) ...................................................................................................... 16

Item (Parameter) Descriptions .................................................................................................... 19

OPT420 Item (Parameter) Descriptions ..................................................................................... 32

Application Example ...................................................................................................................... 34

SCADA-driven Pump Controller with 4-20mA I/O, plus"Fault" and "Run" Relay Outputs ........... 34

Troubleshooting .............................................................................................................................. 37

Technical Support Options .......................................................................................................... 37

What's Special About www.dartcontrols.com? ........................................................................... 37

Models & Options ........................................................................................................................... 38

Model Table ................................................................................................................................. 38

Available Options ........................................................................................................................ 38

Recommended Accessories ....................................................................................................... 38

Agency Approvals ....................................................................................................................... 38

Speciﬁ cations ................................................................................................................................. 38

Electrical ..................................................................................................................................... 38

Mechanical ................................................................................................................................. 39

Environmental ............................................................................................................................. 39

Dimension Chart ......................................................................................................................... 39

NOTE: This manual revision is applicable to MD plus software Version 7 and up, and OPT420 software version 2 and up. See pages 16 and 32 for information on determining the software version numbers of a particular unit..

Introduction

The Micro-Drive plus ("MD capable of being either ﬁ eld or factory conﬁ gured for a number of industry's motion control needs. These controls are designed around a velocity form PID algorithm. They can be easily conﬁ gured to operate as a digital speed controller, time-based process controller, or a ratiometric follower controller in master-slave systems. Featuring Dart's new ModularBus expansion slot architecture, the MD series is ideal for volume OEM Adjustable Speed Drive applications requiring specialized inputs and outputs, such as our OPT420 optically-isolated 4-20mA I/O card that comes factory-installed in the MD40P-420, MD50P-420 and MD50E-420. Contact Dart Controls' Sales Department for details. The unique ModularBus expandability makes the MD

Water and Waste Treatment Systems

Conveyor Oven Controllers

Synchronized Conveyor Lines

The MD40P and MD50P's Durable 1/8 and 1/4 DIN NEMA 4/4X aluminum housings can be easily mounted in a panel or control cabinet, and the MD50E's fully-enclosed NEMA 4 enclosure can be wall/bulkhead mounted. The new optional pluggable terminal block allows the user to quickly install or replace units without the hassle of physically removing and reattaching wires. The units can be ordered with either the standard European-style 5mm terminal block or the optional “pluggable” connector.

plus")

series motor controls are compact, microprocessor-based units

plus

series ideal for applications such as:

plus

General Features

- Microprocessor-based design allows for incredible ﬂ exibility to suit your process control needs

- ModularBus expansion makes it possible for the MD plus to accomodate a wide variety of I/O

- Digital closed-loop algorithm ensures accuracy of

- Non-volatile memory stores settings without batteries, even when power has been removed

- Factory or ﬁ eld programmable via front-panel keypad

- Many adjustable settings include min, max, accel, decel, display options, alarm options, and more

- Internal program-enable jumper selectively prevents tampering with unit’s conﬁ guration

- Universal power supply accepts line voltage inputs from 85-250VAC

models@ 50-60Hz without switches or jumpers. The unit automatically adjusts as needed.

- Transient voltage protection prolongs unit's life in harsh industrial environments

- Compatible with a variety of signal input types including: Hall-Effect Pickups, Photoelectric, TTL, etc. Note: Open collector devices must be capable of sinking at least 3mA

- Self-contained power supply for external pickups, limited to 5V @ 50mA

- Two separate programmable alarm outputs with Form C contacts

- Flexible user inputs support Inhibit, Emergency-Stop, and Jog functionality

- Large 4 digit, 1/2” LED display, with user-settable decimal point (colon displayed in Time mode)

- Durable NEMA 4/4X rated aluminum housing with Polycarbonate membrane and gasket (which are included) meet NEMA 4X standards when used with NEMA 4X enclosures

- European-style 5mm terminal block or pluggable terminal block available

E1/2 RPM of set speed or equivalent

- cULus approval pending

- Wide operating ambient temperature range of -10°C to 45°C (14°F to 113°F)

- Multiple operating modes including:

• Master, Rate Mode – Controls in Engineering Units such as RPM, Gallons per Second, etc.

• Master, Time Mode – Controls in time units such as HH:MM, MM:SS, SS:TT, or other unit

• Follower Mode – Controls in percentage of master rate. This mode allows the MD plus control

to precisely follow the actions of a master process

Installation and Mechanical Dimensions

Exploded Panel View

CUSTOMER

MOUNTING PANEL

(HOLE CUT-OUT FOR CONTROL

HOUSING APPROXIMATELY

3.622" WIDE BY 1.770" HIGH)

SUPPLIED WITH EACH CONTROL:

1) GASKET

2) (2) 6-32 X 3/4 PANHEAD BLACK OXIDE STAINLESS SCREWS

3) (2) #6 NUT WITH LOCKWASHER

PANEL MOUNTING GASKET

(WITH THE ADHESIVE SIDE OF

GASKET FACING THE CUSTOMER

MOUNTING PANEL)

MD40P

CONTROL

CUSTOMER

MOUNTING PANEL

(HOLE CUT-OUT FOR CONTROL

HOUSING APPROXIMATELY

3.622" WIDE BY 3.622" HIGH)

SUPPLIED WITH EACH CONTROL:

1) GASKET

2) (4) 6-32 X 3/4 PANHEAD BLACK OXIDE STAINLESS SCREWS

3) (4) #6 NUT WITH LOCKWASHER

PANEL MOUNTING GASKET

(WITH THE ADHESIVE SIDE OF

GASKET FACING THE CUSTOMER

MOUNTING PANEL)

MD50P

CONTROL

Cut-out and Mounting Dimensions

3.622"

HOUSING DEPTH

4.625"

HOUSING DEPTH

4.625"

PANEL CUT-OUT

1.770"

MD50P

MD40P

4.000"

.140" x 2

.140" x 4

0.885"

3.622"

0.811"

2.000"

5.000"

4.625"

4.179"

1.928"

MD40P and MD50P Dimensions

5.000"

2.289"

4.625"

1.656"

MD50E Mounting and Dimensions

5.530 7/32" TYP.

(4 SLOTS)

.350 DEEP

ValuAuto Alm2Man

5.125 TYP.

Tach

Error

AUTO

OFF

MAN

---

ENTER

5.500

.750

7.400

Item Alm1

CONTROLS

PU-E Series Pickup Installation

The PU-E series pickup is an economical way to monitor motor speed. Its patented design provides for ease of installation in otherwise difﬁ cult to reach areas. The PU-E operates from a +5V power supply, producing a 5 volt square wave whose frequency is proportional to speed. This signal is fed into the MD plus control as a speed or position reference for the microprocessor.

Caution: The PU-E cord should not be grouped with other wires or cords. For applications with PU-E wire over 6 feet long, or noisy environments, a shielded cable is recommended. Connect the shield to the common terminal on the MD plus, leaving the shield on the PU-E end ﬂ oating.

dust

cover

10-32

screw

magnet

disc

flat

washer

PU-E

bearing

3/16"

spacer

tapped

motor

shaft

Model

Number

PU-2E PU-4E PU-20E PU-40E

Pulses per Revolution

2 10 20

Dimensions

1.60 .875

2.40

72.00

signal

red wire +5 volts

black wire

common

white wire

CAUTION:

DO NOT OVER TIGHTEN MOUNTING SCREW !!

No other mounting screws are necessary, as the cord will keep the unit from rotating.

Electrical Installation & Diagrams

P1-12

P1-11

P1-4

P1-5

P1-6

P1-7

P1-8

P1-9

P1-10

P1-3

P1-2

P1-1

PICK-UP MOUNTED

TO MOTOR SHAFT

AC INPUT

black

white

red

MD50E

MASTER

COMMON

+5VDC

SIGNAL

**INHIBIT

(Mounts on rotating

end shaft with 10-32

tapped hole, 1/2" deep)

}

85-250VAC

}

Form C Relay Output (Programmable)

Alarm Output - Normally Open

Alarm Output - Common

Alarm Output - Normally Closed

Jog Input

COM (P1-5)

User Input 1

-A

COM

+5V

IN1

-ARM +ARM

MOTOR

Ground Lug

* For AC inputs utilizing two hot lines, both inputs should be

protected with appropriately sized fuses or circuit breakers.

** P1-8(Master) & P1-12 user input may be programmed

for a number of functions, including (jog, inhibit, etc.)

P1 Terminal Block Hook-Up Diagrams

MD plus

MASTER

MD plus

FOLLOWER

P1-1

P1-2

P1-3

P1-4

P1-5

P1-6

P1-7

P1-8

P1-9

P1-10

P1-11

P1-12

P1-1

P1-2

P1-3

P1-4

P1-5

P1-6

P1-7

P1-8

P1-9

P1-10

P1-11

P1-12

FUSE

MD40P = 7.5 Amp*

MD50P = 15 Amp*

-A

-ARM

COM

+5V

IN1

+ARM

COMMON

+5VDC

SIGNAL

Alarm Output - Normally Open

Alarm Output - Common

Alarm Output - Normally Closed

User Input 1

**INHIBIT

-A

COM

+5V

IN1

FUSE

MD40P = 7.5 Amp* MD50P = 15 Amp*

-ARM

+ARM

COMMON

+5VDC

SIGNAL 1

Alarm Output - Normally Open

Alarm Output - Common

Alarm Output - Normally Closed

User Input 1

**INHIBIT

black

red

white

Jog Input

COM (P1-5)

SIGNAL 2

COM (P1-5)

AC INPUT

Form C Relay Output

}

(Programmable)

AC INPUT

Form C Relay Output

}

(Programmable)

85-265VAC

}

MOTOR

}

MOTOR

85-265VAC

black

red

white

black

white

PICK-UP MOUNTED

TO MOTOR SHAFT

(Mounts on rotating

end shaft with 10-32

tapped hole, 1/2" deep)

FOLLOWER PICK-UP

MOUNTED TO

MOTOR SHAFT

(Mounts on rotating

end shaft with 10-32

tapped hole, 1/2" deep)

MD40P / MD50P / MD50E P1 Terminal Block Descriptions

P1-1 (AC / N) – For single phase AC lines connect the Neutral side of the AC line to this terminal.

For systems with two hot AC lines, connect either of the Hot AC lines to this terminal.

P1-2 (AC / L) – For single phase AC lines connect the Hot side of the AC line to this terminal. For

systems with two hot AC lines, connect either of the Hot AC lines to this terminal.

P1-3 (-A) - This is the -Armature terminal. For normal rotation of the motor, the -Armature lead of the

motor should be connected to this terminal. The +Armature lead of the motor will be connected here when a reverse directional rotation of the armature is desired.

P1-4 (+A) - This is the +Armature terminal. For normal rotation of the motor, the +Armature lead

of the motor should be connected to this terminal. The -Armature lead of the motor will be connected here when a reverse directional rotation of the armature is desired.

P1-5 (COM) – This is the common point for the control logic. The speed sensor common lead as

well as any other source needing to reference the control common will be connected to this terminal.

P1-6 (+5V) – This is a self-contained +5VDC power supply capable of up to 50mA. The speed sensor

supply lead can be connected to this terminal for its power source.

P1-7 (S1) – This is the signal input terminal for the motor's digital pickup or encoder. This signal is

internally "pulled-up" to +5VDC via a 2.2K ohm resistor.

P1-8 (S2) – This input can be programmed to perform a number of advanced functions. In Follower

Mode, this input is the signal input terminal for the master's digital pickup or encoder. In Master modes (Rate and Time), this input can be conﬁ gured to function as an emergency stop, inhibit, or jog command. This signal is internally "pulled-up" to +5VDC via a 2.2K ohm resistor.

P1-9 (NO) – This is the normally-open contact of the user assignable relay output.

P1-10 (C) – This is the common contact of the user assignable relay.

P1-11 (NC) – This is the normally-closed contact of the user assignable relay output.

P1-12 (IN1) – This input can be programmed to perform a number of advanced functions. It can be

conﬁ gured to function as an emergency stop, inhibit, or jog command. This signal is internally "pulled-up" to +5VDC via a 2.2K ohm resistor.

-1 Option Wiring

The -1 option board is a module which allows external up and down push buttons to be wired to the unit. These buttons operate exactly like the Up and Down buttons on the user interface. This module is commonly used to allow PLCs or hand-held pendants to operate the front-panel remotely. The wiring for the external buttons is attached via a 3mm European terminal block on the -1 option board. The buttons are activated by shorting the terminal labeled Com to either the Up or Down terminal.

REMOTE SWITCHING

MICROPROCESSOR

SERIES PC BOARD

DOWN UP

-1 OPTION BOARD

COMMON

-3

-2

DOWN

-1 UP

OPT420 Installation & Diagrams

Installing the OPT420 in Slot 200 (ONLY!) of the Host Drive

The OPT420 is a Dart ModularBus "option card" featuring an Optically-Isolated 4-20mA Current Loop Input and an Optically-Isolated 4-20mA Current Loop Output. Both the input and output are OpticallyIsolated from the Host Drive, circuit common, earth ground, and from each other. In addition, a nonisolated SPST switch input is provided. In the typical application with an MD40/50-420, that switch is used to determine where the Host Drive gets its "Target Speed" setting from. Additionally, the MD40P420, MD50P-420 and MD50E-420 have an "Auto/Manual" LED Annunciator which displays whether the source of the Target Setting comes from the 4-20mA input ("Auto") or from the "front panel" Target setting ("Manual").

In "Manual Mode", the Host Drive uses its normal Front Panel display and Up/Down buttons to set the Target Speed (or Time). However, in "Auto Mode", the Host Drive follows the OPT420's 4-20mA Current Loop signal. In either mode, the OPT420's Current Loop Output provides a real-time updating 4-20mA signal that represents the Host Drive motor's Actual (Tach) Speed. This is primarily used by a SCADA system to provide "feedback" that the SCADA's speed setting was received and acted upon by the Host Drive.

OPT 420 INSTALLATION

SLOT 100

SLOT 500

SLOT 200

IMPORTANT: THE OPT420 MAY ONLY BE INSTALLED IN MODULARBUS SLOT "200". Installing

in any other slot will simply result in the OPT420 "not working". Normal operation will resume when the OPT420 is placed in the Host Drive's ModularBus Slot "200".

Also, the OPT420 comes with Default Values that should allow a simple checkout procedure to verify that everything is hooked-up correctly and functioning. See the OPT420 Item (Parameter) Table for further details.

(Install OPT420 in slot 200 only)

OPT420 P3 & P6 Terminal Block Hook-Up Diagrams

IMPORTANT: THE OPT420 DOES NOT SUPPLY LOOP "EXCITATION VOLTAGE". If the ﬂ owmeter,

SCADA system, etc. does not have a Loop Excitation supply, an external voltage must be provided from +9 to +36VDC capable of at least 50mA for each of the two 4-20mA Current Loops (Input and Output), as shown in the diagram below. Additionally, if the Input and Output must be isolated from each other, two excitation supplies may be needed.

OPT 420 HOOK-UP DIAGRAM (TYPICAL)

OPT420 RELAY Output - Common

OPT420 RELAY Output - Normally Open

OPT420 RELAY Output - Normally Closed

- 4-20mA Out (Black)

Auto / Manual

Switch

(Open = Manual)

- 4-20mA In (Black)

4-20mA IN

(White)

Form C Relay Output (Programmable)

}

4-20mA OUT

(White)

9-36VDC

EXCITATION

SUPPLY

CUSTOMER

SUPPLIED

IF NEEDED

OPT420 P3 Terminal Block Descriptions

P3-1 (- 4-20mA Input) – Connect this terminal to the next 4-20mA device in the loop, or, if the OPT420

is the last device in the current loop, then connect this terminal to the - (negative) side of the current loop.

P3-2 (+ 4-20mA Input) –Connect this terminal to the previous 4-20mA device in the loop, or, if the

OPT420 is the ﬁ rst device in the current loop, then connect this terminal to the + (positive) side of the current loop.

P3-3 (- 4-20mA Output) – Connect this terminal to the next 4-20mA device in the loop, or, if the

OPT420 is the last device in the current loop, then connect this terminal to the - (negative) side of the current loop.

P3-4 (+ 4-20mA Output) –Connect this terminal to the previous 4-20mA device in the loop, or, if the

OPT420 is the ﬁ rst device in the current loop, then connect this terminal to the + (positive) side of the current loop.

P3-5 (S1 Input) – Connect this terminal to one side of a SPST switch to control Auto/Manual Operation.

If switch is OPEN (or unconnected), MD40/50-420 Target Speed will come from its Target Speed setting (as usual), if the switch is CLOSED, MD40/50-420 Target Speed will follow the OPT420 4-20mA Current Loop Input. This signal is internally "pulled-up" via a 15K ohm resistor.

P3-6 (COM) – This is the common point for the control logic. Normally, the other side of the SPST

Auto/Manual switch would be connected to this terminal. Note that this means that the Auto/

Manual switch is NOT "isolated".

OPT420 P6 Terminal Block Descriptions

P6-1 (NC) – This is the normally-closed contact of the user-assignable OPT420 Alarm 1 relay.

P6-2 (NO) – This is the normally-open contact of the user-assignable OPT420 Alarm 1relay.

P6-3 (C) – This is the common contact of the user-assignable OPT420 Alarm 1 relay.

Basic Operating Instructions

Control Algorithm Discussion and P-I-D Tuning

A true P-I-D speed control algorithm is employed in the MD40P-420, MD50P-420 and MD50E-420 which allows precise and quick response to set speed or load changes. The three items, 26, 27 and 28 (Proportional, Integral, Derivative, respectively) are adjustable as shown on page 16. P-I-D can be tuned to get precise speed response and regulation.

When adjusting P-I-D, begin by using the factory defaults the control is preset to: P (Item 26) to 2300, I (Item 27) to 1000, D (Item 28) to 0. If further adjustment of P-I-D is needed, follow the steps below.

To adjust P: (Item 26)

Run the motor from zero speed to the set speed. If the start up response of the motor is too slow, increase “P” in increments of 20 until the desired start up response time is obtained. If the start up response time is too fast, decrease “P” in increments of 10 until the desired response is reached. “P” is used to adjust the start up response time only. The start up response time is approximately 0 to 60% of the set speed. “I” can be used if adjustment of the upper response time (60 to 100% of the set speed) is needed.

To adjust I: (Item 27)

Run the motor from zero speed to the set speed. If the upper response time (60 to 100% of the set speed) has any hesitation or has too slow of a response, then increase “I” in increments of 5 until the hesitation is eliminated and/or the desired upper response time is obtained. If the upper response time is too fast or has too much overshoot, decrease “I” in increments of 3 until the overshoot is eliminated and/or the desired upper response time is reached.

To adjust D: (Item 28)

“D” can be used to dampen the effect of “P”. By making “D” too large, the response time of the control can be reduced, so keep “D” as small as possible on non-regenerative controls.

Note: The proportion of P-I-D seems to be more critical than the individual values, i.e.. values of 5050-50 will achieve virtually the same results as 999-999-999.

Master (Rate and Time) and Follower (Ratio) Modes Explained

The MD plus controls have two basic modes of operation, master and follower. In the Master modes, the controls are capable of operating independently; whereas, in the Follower Mode, the control requires a signal from a master to operate. The Follower Mode is used in applications which require the MD plus to closely follow a master process. For example, if a factory has ten conveyors which must be synchronized over long periods of time, an industrial engineer could use one MD plus as a master control for the ﬁ rst conveyor and nine MD pluses as slaves or followers which would receive their speed commands from the ﬁ rst conveyor's master control or pickup.

In Master Rate Mode, the MD plus controls the rate of the motor by tracking the motor's pickup pulses which are applied to signal input 1 (S1). In this mode, the display indicates in rate units such as Gallons-per-minute, feet-per-second, or RPM.

In Master Time Mode, the MD plus controls the process time by tracking the motor's pickup pulses which are applied to signal input 1 (S1). In this mode, the display indicates in time units such as HH:MM or MM:SS, where HH is hours, MM is minutes, and SS is seconds. This mode is most-commonly used in time-sensitive processes such as conveyor ovens and plating applications.

In Follower Mode, the MD plus tracks the rate of the pulses which are applied to the master signal input (S2). From these pulses, it calculates the speed of the master process in RPMs. This rate is then multiplied by the percentage which is displayed on the user interface. The display is in 0.1% of master units. For example, 675 = 67.5 percent of master speed. A master running at 1350 RPM, would cause the follower to run its motor at 67.5% * 1350 RPM or 911.25 RPM. Typical follower applications include synchronized rotation, synchronized conveyors, and some web-material processes.

Visual Reference

CONTROLS

ENTER

Tach

Item

ValuAuto

Alm1

Alm2Man

Error

---

Display Window

Up & Down Buttons

ENTER (Select) Button

Up & Down Buttons

ENTER (Select) Button

Display Window

Up & Down Buttons

ENTER (Select) Button

Display Window

How to Change an Item's Value (The Short Story)

1. Hold down the Enter button until Item-Selection Mode is entered. The 'Item' Annunciator will light

2. Using the Up and Down buttons, select the desired Item number to view or edit

3. Press the Enter button to change the value of the Item. The 'Valu' Annunciator will light

4. Using the Up and Down buttons, change the Item's value as desired

5. Press the Enter button to permanently save the changes (Returns to Item-Selection Mode)

6. Select Item Zero ("0") and press the Enter button to return to Running Mode

Operating the User Interface (The Long Story)

Although the MD plus user interface is very versatile, it is also simple to setup and operate. With just a few button presses, it allows the user to conﬁ gure a number of adjustable Items. The LED display has three basic operating modes: Running Mode, Item-Selection Mode, and Value Mode. "Item" and "Value" modes also have speciﬁ c visual indicators (LED "Annunciators") that allow the user to immediately determine the current state or mode of the user interface. Note: Item-Selection Mode (and Value

Mode) can only be entered if the Program Enable jumper is in the “On” position.

Running Mode is the default display of the unit when power is applied. The MD plus will spend the

majority of its time in this mode. In Running Mode, the display shows the Target or Actual ("Tach") speed value in the user-deﬁ ned Engineering Units format for rate, time, or (in "Follower" mode) percentage of Master. The control will continuously attempt to drive the motor to the requested Target. In this display mode, the Up and Down buttons increase or decrease the displayed target value until either the display minimum or display maximum limit is reached. Depending on the alarm conﬁ guration, these buttons may also serve as an alarm-silence or alarm-reset button. For example, displays for rate, time, and follower operating modes could be 13.60, 45:30, and 1000, respectively.

Additionally, the MD40P-420, MD50P-420 and MD50E-420 have an "Auto/Manual" Annunciator which displays a "solid" light if the source of the Target Setting comes from the 4-20mA input ("Auto"), or a "blinking" light if the Target Setting comes from the "front panel" Target setting ("Manual").

Item-Selection Mode can be entered by simply pressing and holding the Enter button down for about

three seconds. Once in Item-Selection Mode, the "Item" Annunciator will illuminate. The display will indicate the currently selected Item number for editing purposes. Pressing the Up or Down button will increase or decrease the selected Item number on the display. Although the Item numbers are in numerical order, some numbers are skipped. These numbers represent reserved Items that are not yet implemented and are not displayed.

Further, Item numbers above 999 are actually located on the ModularBus card(s) that are installed in the "Host" Drive. The numbering scheme is the ModularBus "slot number (100, 200 or 500) times 10, plus the Item Number. Once the desired Item number is displayed, a press of the Enter button will change the display to the Value Mode. So, for example, to view/edit Item 20 on a ModularBus card in Slot 200, "Browse" to Item number 2020 (200 X 10 + 20).

When in Item-Selection Mode, pressing the Enter button with Item 0 selected will cause the unit to return to Running Mode. See the Software Items for a list of available Items.

Value Mode is used to modify the value of the selected Item. When in Value Mode, the "Valu"

Annunciator will illuminate. Pressing the Up or Down button increases or decreases the selected Item’s value. With only one exception, value changes take effect immediately. For example, when adjusting P-I-D settings, the change in response can be observed "live", which greatly facilitates the P-I-D "tuning" process. Once the desired value is showing in the display window, pressing the Enter button again will return to Item-Selection Mode and the new value will be saved in permanent memory. Removing power from the unit while in Value Mode will result in the speciﬁ ed new value being lost, and the previous (old) value being used. This can be used as an "undo", for example, during editing a value that is being edited in the wrong Item. Note: Changes to Item 10, Operating Mode, do not

take effect until power is removed and re-applied to the MD plus.

Detailed Conﬁ guration Instructions

MD plus Default Conﬁ guration

When shipped from the factory, the following basic settings are in place:

Rate Mode Operation in RPM

S1 and S2 Signal Input Pulses per Revolution: 20 (to use a PU-40E)

Decimal Point Display: None

Display Range: 0 - 2400

Speed Range: 0 - 2400 RPM

Accel and Decel: 9999 RPM per second

Signal Input 2 (S2) Mode: Jog @ 1000 RPM when Low

User Input 1 (UIN1) Mode: Emergency Stop when Low

Alarm 1 and Alarm 2 Outputs: Disabled

Resetting the MD plus to Factory Defaults

The factory-default settings can be easily restored using either of two methods. Both methods require the Program Enable jumper to be in the “On” position. The ﬁ rst is to apply power to the unit with both the Enter and Down buttons pressed for 3 seconds. The second is to change the value of Item 95 to 5.

JP1 (Program Enable Jumper)

The JP1 jumper is located under the dust cover on the back end of the upper board. When the jumper is set to the "Off" position, all programming features are "locked out" from the front panel user. When the jumper is in the "On" position, the programming Items are open to change. JP1 is shipped from the factory set in the "On" position.

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