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Date: 15 March 2010
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2600RG MELLTRONICS DRIVES  
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2600RG MELLTRONICS DRIVES

Product Name: 2600RG MELLTRONICS DRIVES

Product Description















































HP INPUT
VOLTS
AC
ARM
VOLTS
DC
FIELD
VOLTS
DC
100% DC
ARMATURE
CURRENT

MODEL
NUMBER

PART
NUMBER
1/4 - 1 120 90 100 10 2600RG 262-8000
1 1/2 - 2 120 90 100 20 2600RG 262-8001
3 - 5  240 180 200 25 2600RG 262-8001
5 - 7 1/2 240 180 200 38 2600RG 262-8075

Price:





















DESCRIPTION PART NUMBER LIST PRICE
MELLTRONICS
2600RG 1/4-2HP 120V/240V
262-8000 $2300 
MELLTRONICS
2600RG 1 1/2-5HP 120V/240V
262-8001 $2570 
MELLTRONICS
2600RG 7 1/2 HP 240V
262-8075 $3210 

 
Customer Programmable:


  • Input voltage 120 or 240 VAC

  • Current range (Horsepower)

  • Armature voltage feedback (90 or 180 VDC)

  • Tach Feedback

  • Torque or Speed Regulation

  • IR Compensation (negative or positive)

  • 10% reverse operation

  • 50 or 60 Hz

  • Accel/decel time range .2-4/2-30 seconds

  • Ammeter full scale reading (150% or 200%)


GENERAL DESCRIPTION

The MELLTRONICS 2600RG is a high performance, regenerative DC motor control.
Included are many standard features that are available only as options on many
other single-phase regenerative drives. Accessibility to all important internal
regulator points is provided by terminals on the control. This permits the
MELLTRONICS 2600RG to be used in custom engineered applications, as well as in
standard speed regulated applications. The MELLTRONICS 2600RG was designed to
handle most single phase regenerative drive applications without the addition of
external hardware and the need for costly, time-consuming engineering.

Three control models handle the entire 1/4 to 7 1/2HP range of applications.
Drive current limit and inverse time overload protective circuits for rating
within this range are calibrated by means of a jumper change on the main printed
circuit board.

The MELLTRONICS 2600RG controls a DC motor's speed or torque by varying the DC
voltage applied to the motor's armature. Because the control is regenerative, it
can provide power to the load and return that power to the AC power line.
Rectilinear phase control assures stable operation at low speeds and smooth
transitions between motoring and regenerative modes (zero deadband).

The MELLTRONICS 2600RG is a versatile control. Simple jumpered programming
allows the MELLTRONICS 2600RG to operate from either 120 or 240 volt AC input
power at 50 or 60 Hz. Additional jumpers program the control to operate as
either a speed regulator with armature voltage or DC tachometer feedback or as a
torque regulator with armature current feedback. Two control models cover the
entire 1/4 to 5HP range of applications. Drive current limit and inverse time
overload protective circuits for ratings within this range are calibrated by
means of a jumper change on the main printed circuit board. DC output current
varies as a function of an input reference voltage in torque regulated
applications. Changing the torque reference (potentiometer setting) results in a
change in motor torque output.

The MELLTRONICS 2600RG control converts single phase AC input power to variable
voltage DC output power. The DC output is applied directly to the DC motor
armature. DC output voltage varies as a function of an input reference voltage
in speed regulated applications. (Typically, this input reference voltage is
provided by an operator adjustable potentiometer). Changing the speed reference
(potentiometer setting) results in a motor speed change.

The MELLTRONICS 2600RG control is designed for use with either shunt wound or
permanent magnet DC motors. A fixed voltage unregulated DC source is provided
for connection of the motor field in wound field applications. Included in the
MELLTRONICS 2600RG control are many built-in features not available on
competitive units. Motor field economy and separately adjustable rates of
acceleration and deceleration are included on all units. If desired, the
built-in accel-decel control ramps can be by-passed completely by a jumper
change on the control. Current compounding can be added to the speed regulator
by changing another jumper position. Current limit is normally set by a
potentiometer located on the main printed circuit board, but if desired, it can
be adjusted using a remote mounted potentiometer or a customer supplied voltage
signal. An output signal is available for use with one of the MELLTRONICS 2600RG
ammeter kits to provide an indication of drive output current without the
addition of an ammeter shunt. On occasion, customer requirements may dictate
that the operator's devices be mounted on the door of the enclosure.

STANDARD FEATURES


  • Circuit Board Indicators - Light emitting diodes (LEDs) of
    the main circuit board indicate: DC overload, Field Loss, Instantaneous
    Over-current Trip, Run Mode, Jog Mode, SCR's Being Gated, Fault Trip
    Circuit. Protective circuits are designed to quickly shut the drive down and
    provide a visual indication whenever a DC overload, field loss, or
    instantaneous over-current condition occurs. This fault trip circuit
    prevents restart. It must be reset before the drive can run again.

  • Solid State Full Wave Power Bridge - Uses generously rated
    power semiconductors for maximum reliability and long life.

  • Isolated Control Circuitry - Provides complete isolation of
    the control and regulator circuitry from the AC power bus for protection in
    the event of a ground fault. The ammeter, speed potentiometer, and
    tachometer are not at line potential. Complete system capability is also
    possible without additional isolation accessories.

  • Power Supplies - Each MELLTRONICS 2600RG contains and
    internal 115 VAC power supply to power the DC loop contractor and drive
    logic relays. Internal ±24 VDC, ±15 VDC and a regulated ±10 VDC power
    supply are also included.

  • Ammeter Output - Motor current can be indicated with the
    simple addition of a remote meter.

  • Field Economy - Insures longer life for wound field DC
    motors. May be easily bypassed or time delayed to meet specific application
    requirements.

  • Double Break DC Armature Loop Contactor - Full rated and
    fully sequenced contactor assures positive disconnect of DC motor when the
    stop push button is pushed or whenever and under-voltage condition occurs.

  • Remote current Limit - Available by the simple addition of a
    potentiometer or DC voltage input.

  • Negative IR Compensation- Available by jumper connection.
    Allows use of control in jumper applications.

  • Current (torque) Regulator - 1% accuracy armature current
    regulator allows the operator to control motor torque instead of speed.

  • Speed Regulator - 2% accuracy using armature voltage
    feedback with IR compensation or 1% accuracy with tachometer feedback.
    Regulation may be improved by selecting the proper motor mounted tachometer.

  • Separately Adjustable Linear Accel/Decel Control - Two
    ranges: 0.2-4 seconds or 2-30 seconds.

  • Rectilinear Phase Control - Improves performance at low
    speed and near zero load.

  • Inner Current Loop Regulator - Inherent high band width
    capability for fast response.

  • Quadrant Lockout - May be selected by jumper programming to
    prevent forward or reverse motoring in certain applications.

  • AC Line Filter and Transient Voltage Suppression Network -
    Eliminates interaction between other drives or AC equipment.

  • Reactors. Snubber Networks - Prevents SCR DV/DT failures due
    to line spikes and transients. Provide DI/DT protection during SCR turn on
    and aids in SCR turn off during SCR commutation, minimizing the effects of
    AC power notching.

  • SCR Trigger Circuits - Pulse transformer isolated, hard
    firing, high frequency "burst" type pulse train output from
    individually grated oscillators insures SCR conduction regardless of the
    effects of the notching or incoming AC power line.

  • Standard Adjustments - Max, speed, zero bias, acceleration
    time, deceleration time, IR compensation, current limit, jog speed, velocity
    stability, speed rate and current stability.

  • Jog at Preset Speed - Separately adjustable from zero to
    plus or minus 30% of base speed.

  • Dual Frequency Operation - Controls may be operated from 50
    to 60 Hz power supplies by simple jumper change.

  • Exclusive Static Adjustable Current Limit - Allows static
    setting of the desired current limit value without applying DC power and
    without a connected output load whenever the optional test meter in
    connected.

  • Common Control Circuit Boards - 262-8000 and 8001
    MELLTRONICS 2600RG series controls utilize the same PC board regardless of
    HP, voltage, frequency, or control mode.

  • DC Overload (Armature) - Senses over-current condition with
    inverse time shutdown.

  • Field Loss Protection - Provides protection against runaway
    due to loss of motor field by shutting down the drive.

  • High Speed Current Limiting SCR Semiconductor Fuses -
    Provide the utmost in fuse coordination and protection of the SCR's and
    motor with positive circuit clearing on both AC and DC faults.

  • Instantaneous Over-current Protection - Senses armature
    fault current quickly to protect both semiconductors and motors against
    damaging current levels.


OPTIONS

  • Test Meter - This modification consists of a digital panel
    meter and multi-position selector switch. It provides the capability to
    monitor nine critical drive parameters. The test meter kit plugs into the
    regulator PC Board on the 2600RG. It is an ideal addition to the control as
    an aid in troubleshooting and start-up.

  • Ammeter Kit - The 2600RG control includes circuitry to drive
    an external ammeter without the addition of an ammeter shunt. This external
    meter can be calibrated in either percent load or in amperes.
    (Additional Options - many additional options are available to meet specific
    drive application requirements including: reversing, dynamic braking,
    process signal follower, specific logic, auxiliary control, field weakening,
    and isolation transformers - Contact Melltronics Industrial for details.)


SPECIFICATIONS
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