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.

Interface

External connections are made using a wiring harness that connects from

a sixteen‑position terminal block to the terminal block on the existing control

cabinet. An additional terminal block provides 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, and spare fuses for each are located 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 pushbutton, and NEUTRAL LIGHT are standard.

AUTO/OFF/MANUAL switch may be configured for switch status detection.

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

position, for those regulators equipped with a circuit for this purpose.

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

M‑2302 Adapter Panel – Specification

Size with M‑2001 Series Digital Tapchanger Control: 16.00″ high x 9.50″

wide x 4.185″ deep (40.6 cm x 24.13 cm x 10.5 cm)

Approximate Weight: 2 lbs, 7 oz (1.11 kg)

Approximate Shipping Weight: 5 lbs, 7 oz (2.47 kg)

Approximate Weight with M‑2001 Series Digital Tapchanger Control: 6 lbs, 2 oz (2.78 kg)

Approximate Shipping Weight with M‑2001 Series Digital Tapchanger Control: 11 lbs, 2 oz (5.05 kg)

Warranty

The M-2302 Adapter Panel is covered by a five year warranty from date of shipment.

Adapts M‑2001 Series Digital Tapchanger Control to Solid‑State Controls

for Howard Industries SVR‑1

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

Tapchanger Control is removed

• Optional SCADA Cutout (Local/Remote) switch (for use with SCADA

enabled M-2001C controls) allows Local Blocking of SCADA commands

• Optional SCAMPTM (SCADA Controllable Auto/Manual Pushbutton)

switch replaces AUTO/OFF/MANUAL toggle switch

• Optional 2 Level Local Voltage Reduction switch

The M‑2302 is an adapter panel which, when combined with the M‑2001

Series Digital Tapchanger Control, provides convenient direct replacement

of Howard Industries SVR‑1 solid‑state controls. The M‑2302 consists of

a front panel with hinge leaves, and mounts into the control cabinet using

the same two hinge pins which must be saved from the original control.

Adapts M‑2001 Series Digital Tapchanger Control to replace Reinhausen

MK20 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

MK20 Control

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

Tapchanger Control is removed

The M‑2220 Adapter Panel combines with the M‑2001 Series Digital

Tapchanger Control to provide convenient, direct mechanical replacement

for Reinhausen MK20 control.

M‑2220 Differences Relative to the MK20: Revised connections will be

needed if paralleling transformers using the circulating current method with

the Reinhausen SKB5 or SKB20 Parallel Control Units (please contact

Beckwith Electric Company for further information).

The M‑2220 provides one normally open contact for the Raise and Lower

outputs. The MK20 normally closed contacts for Raise and Lower are not

provided on the M‑2220.

PHYSICAL

Size with M-2270 Adapter Panel:

Overall dimensions are 13-3/4″ high x 5-13/16″ wide x 3-9/16″ deep (34.9 cm x

14.8 cm x 9.1 cm).

Approximate Weight: 1 lb. (0.45 kg).

Approximate Shipping Weight: 2 lbs. (0.91 kg).

Approximate Weight with M-2270 Adapter Panel: 8 lbs. (3.63 kg).

WARRANTY

The M-2901 Surface Mounting Kit is covered by a five year warranty from date

of shipment.

• 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 m.A, 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.

• Control Accuracy Specification: All units comply with ANSI/IEEE C57.15-1986

defining control accuracy of operation.

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 m.A, 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.

• Control Accuracy Specification: All units comply with ANSI/IEEE C57.15-1986

defining control accuracy of operation.

ENVIRONMENTAL

Temperature Range: Stated accuracies are maintained from -40° to +80° C.

Humidity: Stated accuracies are maintained under 95% relative humidity (non-

condensing). Fungus Resistance: A conformal printed circuit board coating inhibits

fungus growth.

INSTALLATION

Refer to the INSTALLATION chapter of the M-2270 Adapter Panel Application

Guide for the M-2270’s outline and hole drill dimensions. Slide the M-2901

Surface Mounting Kit’s mounting bracket onto the bottom of the M-2270 so

that the terminal block is facing outward. Using the wires provided on TB3.

make the wiring connections to TBl and TB2 of the M-2270. as shown in the

figure TB3 Connections for the M-2901 Surface Mounting Kit.

Mount the M-2001 Tapchanger Control to the back of the M-2270 Adapter

Panel and secure with the four screws provided. The four screws are shipped

in a drawstring bag which is attached to the adapter panel.

Insert the plug from the adapter panel into the connector at the base of the

M-2001.

Then install the M-2270 Adapter Panel (with the M-2001 Tapchanger Control

and M-2901 Surface Mounting Kit) onto the flat surface, securing with the four

hex female stand-offs and screws provided with the kit.

INTERFACE

External connections are made to the 27-pin terminal block TB3 on the

M-2901’s mounting bracket, 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. TB3 has matching connections with the M-2270

Adapter Panel’s TBl and TB2 pin numbers.

Options

SCADA CUTOUT switch allows Local blocking of SCADA commands (for

use with SCADA enabled M‑2001C controls). The SCADA Cutout switch

must be used with a M-2001 Series Control with firmware version

D‑0146V08.01.22 or later installed.

SCAMPTM (AUTO/MANUAL) pushbutton switch allows the Auto/Manual

state on the adapter panel to be changed by a SCADA command.

The SCAMP pushbutton switch must be used with a M‑2001 Series Control

with firmware version D-0146V08.05.XX or later installed.

Voltage Reduction switch allows 2 levels of Voltage Reduction to be selected.

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.

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.

Provides Surface Mounting of the M‑2270 Adapter Panel

• Connects easily to the M-2270 Adapter Panel using a slide-on mounting

bracket that has a 27-position terminal block, and includes four hex

female stand-offs, four screws and appropriate wiring

• Provides mounting onto any flat surface at least 11-1/2″ wide and 8″ high

The M-2901 is an adapter kit which permits surface mounting of the

M-2270 Adapter Panel which is used with the M-2001 Digital Tapchanger

Control. The M-2901 consists of a mounting bracket with a 27-position

terminal block that slides on to the bottom of the M-2270. The kit includes

four 3/8″ hex female stand-offs, four l/4″-20 x 1/2″ screws, and twenty-seven

wires-fifteen of which have lug nuts at one end. External connections are

made to terminal block TB3 on the adapter kit bracket.