5.2M-2001 Checkout Procedure

NOTE: This test of the M-2001 assumes that the unit remains connected to the adapter panel.

Basic Operational Test

1.Apply 120.0 V ac to TB1-9 (motor power) and TB1-10 regulated voltage) of adapter panel.

2.Connect neutral to TB1-8 (neutral).

3.Verify local voltage y input voltage ±0.3 V.

4.Apply 100.0 mA in-phase current to TB1-14 (load current-polarity) and TB1-15 (load current-return) of the adapter panel. Verify Control Load I y 100 mA and Power Factor y 1.0 ±0.02.

5.Verify UP, DOWN and ENTER buttons work.

—Checkout Procedure Complete—

5.3In-Service Test

1.Set the M-2001 Tapchanger Control to display Bias Voltage screen.

2.Press ENTER.

3.Use UP and DOWN buttons to cause RAISE and LOWER outputs.

—In-Service Test Complete—

Return unit to desired settings

M-2299 Application Guide

6.0Checkout Procedure

NOTE: All Beckwith Electric units are fully calibrated at the factory.There is no need to re-calibrate the units before initial installation.

Set the AUTO/OFF/MANUAL switch to OFF. Inspect the MOTOR POWER and VOLTAGE fuses to ensure they are correctly sized and have not blown.

6.1Power

1.Remove any external connection between TB1-9 and TB1-10 which are located on the adapter panel printed circuit board. Also remove any voltage applied to TB1-9 externally. Using a voltmeter, make sure that the voltage applied to TB1-10 is nominal 120 V ac with respect to TB1-8 (neutral). Apply power to TB1-10 (hot) and TB1-8 (neutral).

8 WARNING: Voltage applied at the METER OUT test terminal may energize the regulator or transformer to a high voltage through the voltage transformer.

Death or severe electrical shock can occur.Do not connect any voltage source at the METER OUT test terminal.

2.Connect a voltmeter to the METER OUT test terminal on the front of the adapter panel. 120 V ac should be indicated.

▲CAUTION: Do not reverse the ground and hot wires when connecting an external source. A 3 AG fuse (F2) is installed to protect the relay from dam- age if these connections are accidentally reversed. Spare fuses are supplied inside the fuse holders. Units returned with only a blown fuse are not cov- ered by warranty, and a nominal repair charge will be made for replacement of the fuse. Please check the fuse before returning the unit for repair, in order to avoid unnecessary repair charges.

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