Interface

External connections are made to two terminal blocks located on the rear

of the adapter panel. The second terminal block provides access to auxiliary

functions, including self-test alarm, user-programmable alarm, auto disable

and manual raise/lower.

Features

Separate fuses for test terminal, voltage sensing and motor power are on

the front panel. Spare fuses for each are in the fuse holder.

Binding posts on the front panel allow easy connections for test procedures.

RAISE/OFF/LOWER, AUTO/OFF/MANUAL and VOLTAGE SOURCE switches,

DRAG HANDS RESET button, and NEUTRAL LIGHT are standard.

NEUTRAL LIGHT will light to indicate that the regulator is in the neutral position

when used with regulators which provide a circuit for this purpose.

Adapts M‑2001 Series Digital Tapchanger Control s a General Replacement

for Transformer and Regulator Controls

• Provides mounting adaptable to several different configurations

• Provides built-in CT shorting protection when the M-2001 Series Digital

Tapchanger Control is removed

• Optional SCADA Cutout (Local/Remote) switch allows Local Blocking of 

SCADA commands (for use with SCADA enabled M-2001C controls)

• Optional SCAMPTM (SCADA Controlled Auto/Manual Pushbutton) replaces

AUTO/OFF/MANUAL toggle switch

• Optional 2 Level Local Voltage Reduction switch

• Optional 19″ Rack Mount Adapter Panel Kit

The M‑2270B is an adapter panel which, when combined with the M‑2001

Series Digital Tapchanger Control, can be customized to fit as a replacement

for a variety of manufacturers’ LTC transformers and regulator controls.

Physical

Size with M-2001 Tapchanger Control:

Overall dimensions are 10″ high x 5.8″ wide x 3″ deep (25.4 cm x 14.8 cm x 7.6 cm)

Approximate Weight: 1 lb (0.45 kg)

Approximate Shipping Weight: 2 lbs (0.91 kg)

Approximate Weight with M-2001 Series Digital Tapchanger Control: 4 lbs, 11 oz (2.13 kg)

Warranty

The M-2050 Surface Mounting Kit is covered by a five year warranty from date of shipment.

External connections are made to the wires of the 24-pin connector assembly.

The 24-pin connector plugs into the bottom of the M-2001 and provides

standard functions, such as motor power input, voltage input, voltage reduction

and tapchanger raise and lower, along with auxiliary functions, such as self-test

alarm, user-programmable alarm and operations counter.

Refer to the applicable M-2001 Series Instruction Book for pin assignments.

Interface

External connections are made to the wires of the 24-pin connector assembly.

The 24-pin connector plugs into the bottom of the M-2001 and provides

standard functions, such as motor power input, voltage input, voltage reduction

and tapchanger raise and lower, along with auxiliary functions, such as self-test

alarm, user-programmable alarm and operations counter.

Refer to the applicable M-2001 Series Instruction Book for pin assignments.

Installation

1. Utilizing the four screws provided in the drawstring bag, mount the two right

-angle mounting brackets to the M-2001 Digital Tapchanger Control (refer to

Figure 1. M-2050 Mounting). 

 NOTE: When locating Digital Tapchanger Control, allow for adequate clearance

above for RS-232. RS-485 and fiber-optic ports, and below for the 24-pin connector

plug.

2. Drill mounting holes as indicated in Figure 2. Outline and Hole Drill Dimensions.

3. Install the M-2050 Surface Mounting Kit (with M-2001 Digital Tapchanger Control)

on to the flat surface.

4. Refer to the applicable M-2001 Series Instruction Book for connection and

commissioning details.

Provides Surface Mounting of the M‑2001 Series Digital Tapchanger Controls

for applications which do not require features of adapter panels

• Connects easily to the M‑2001 Series Digital Tapchanger Control using two

right angle mounting brackets, four screws and a 24‑pin connector with a

six‑foot pigtail on each pin

• Provides mounting onto any flat surface at least 5.8″ wide and 10″ high

The M-2050 is an adapter kit which permits surface mounting of the M-2001

Series Digital Tapchanger Controls on any flat surface at least 5.8″

wide x 10.0″ high. It consists of two right angle mounting brackets that bolt

to the rear of the top and bottom of the M-2001 using four .25″ screws.

Also included is a 24-pin, in-line female connector with a six-foot pigtail on

each pin to facilitate connection of the M-2001 in original equipment

manufacturers’ applications. The M-2050 does not include features available

on adapter panels, such as mechanical configurations and wiring connections

for direct replacement, or front panel switches, fuses or test points.

Interface

External connections are made to one terminal block, located on a separate

(provided) bracket which mounts within the existing enclosure.

Features

Fuse for voltage sensing is on the front panel. A spare fuse is provided within

the fuse housing.

AUTO/OFF/MANUAL switch.

Testing Specifications

High Voltage: All input and output terminals will withstand 1500 Vac rms to

chassis or instrument ground for one minute with a leakage current not to

exceed 25 mA, for all terminals to ground. Input and output circuits are

electrically isolated from each other, from other circuits, and from ground.

Surge Withstand Capability: All input and output circuits are protected against

system transients. Units pass all requirements of ANSI/IEEE C.37.90.1-1989

defining surge withstand capability.

Radiated Electromagnetic Withstand Capability: All units are protected against

electromagnetic radiated interference from portable communications transceivers

as outlined in ANSI/IEEE C37.90.2-1987 defining radiated electromagnetic

withstand capability.

Environmental

Temperature Range: Functionality is maintained from ‑40° to +85° C.

Humidity: Functionality is maintained under 95% relative humidity (non‑condensing).

Fungus Resistance: A conformal printed circuit board coating inhibits fungal growth.

Physical

Size with M‑2001 Series Digital Tapchanger Control: 10‑25/32″ high by 7‑1/2″

wide by 3‑3/8″ deep (27.4 cm x 19.1 cm x 8.6 cm); requires a Reinhausen MK30

enclosure

Approximate Weight: 2 lbs, 8 oz (1.14 kg)

Approximate Shipping Weight: 5 lbs, 8 oz (2.50 kg)

Approximate Weight with M‑2001 Series Digital Tapchanger Control: 6 lbs, 13 oz

(3.09 kg)

Approximate Shipping Weight with M‑2001 Series Digital Tapchanger Control:

11 lbs, 8 oz (5.22 kg)

Patent & Warranty

The M-2230 Adapter Panel is covered by a five-year warranty from date of shipment.

Environmental

Temperature Range: Functionality is maintained from –40° to +85° C.

Humidity: Functionality is maintained under 95% relative humidity (non‑condensing).

Fungus Resistance: A conformal printed circuit board coating inhibits fungus growth.

Physical

Size : 17″ high x 15‑1/16″ wide x 9‑7/8″ deep (43.2 cm x 38.3 cm x 25.1 cm)

Approximate Weight: 11 lbs, 13 oz (5.4 kg)

Approximate Shipping Weight: 14 lbs, 13 oz (6.7 kg)

Approximate Weight with M‑0329B Option: 15 lbs, 13 oz (7.2 kg)

Approximate Weight with M‑2001 Series Digital Tapchanger Control: 15 lbs, 8 oz (7.0 kg)

Approximate Shipping Weight with M‑0329B Option: 18 lbs, 13 oz (8.5 kg)

Warranty

The M-2279D Adapter Panel is covered by a five year warranty from date of shipment.

Adapts M‑2001 Series Digital Tapchanger Control to replace Reinhausen

MK30 Control

• Connects easily to the M‑2001 Series Digital Tapchanger Control, using

four mounting screws and a 24‑pin connector

• Provides direct mechanical and electrical replacement of the Reinhausen

MK30 Control

• Uses existing MK30 enclosure

• Provides built‑in shorting protection when the M‑2001 Series Digital

Tapchanger Control is removed

The M‑2230 Adapter Panel combines with the M‑2001 Series Digital 

Tapchanger Control to provide convenient, direct mechanical replacement

for the Reinhausen MK30 control in the existing enclosure.

M‑2230 Differences Relative to the MK30 – Revised connections will be

needed if paralleling transformers using the circulating current method with

the Reinhausen SKB5 or SKB‑20 Parallel Control Units. (Please contact

Beckwith Electric Company for further information.)

If paralleling transformers using the SKB‑30 Electronic Parallel Control, then

the M‑2230 cannot be used.

The M‑2230 provides one normally open contact for the Raise and Lower

outputs. The MK30 normally closed contacts for Raise and Lower are not

provided on the M‑2230. The Adapter Panel provides one status contact

that may be programmed to close when the control is blocking for

overcurrent, overvoltage, or undervoltage.

The Beckwith Electric M-2051/M-2502 Connection Harness, used in

conjunction with the M-2001 Series Digital Tapchanger Control, uses

modern electronic digital design and digital processing circuitry to

achieve an overall stability and resolution unattainable with 

electromechanical and analog design tapchanger controls. CMOS

semiconductors are used throughout the design. Standard Features

The M-2051/M-2502 Connection Harness, with the M-2001 Series Digital

Tapchanger Control, provides a solid-state voltage control relay intended

for applications involving the control of tapchanging transformers and

regulators.

CONNECTION HARNESS M-2067 W/O PANEL

Features

• Voltage waveform sampling and digital processing circuitry ensure

accurate rms voltage sensing in the presence of distortion on the input

voltage and current.

• Accuracy exceeds the ANSI/IEEE C57.15-1986 Class 1 specification over

the temperature range of -40° to + 80° Celsius.

• Input and output circuits are protected against system transients. Units

pass all requirements of ANSI/IEEE C37.90.1 1989. which defines surge

withstand capability. All input and output terminals will withstand 1500 V

ac rms to chassis or instrument ground for one minute with a leakage

current not to exceed 25 mA, for all terminals to ground. Input and output

circuits are electrically isolated from each other, from other circuits and

from ground.

• A voltage sensing fuse and a spare fuse are provided.

• The M-2051/M-2052 is a general purpose connection harness that is

designed to be mounted on a panel.

Application LTC Transformer Controls

Dimensions

Weight  .5 lb.