1. Beckwith Tap changer with TapTalk
By: Justin Causey

2. Materials Needed 10 gauge Drop cord recommended
9pin-9pin Null modem cable
Computer with 9pin port
Beckwith M2001B Instruction Manual
Variable transformer
Table to set computer on

3. Getting Started
Make connection from computer to M2001B control panel COM1 port
Make connection from 120VAC receptacle to motor power in ports on control panel
Make connection from 120VAC outlet to variable transformer and from the variable transformer to the voltage in ports on control panel. (connect 3 wire conductor to control panel and ground it to cabinet)
Connect voltmeter in parallel with the voltage in ports on the control panel where your variable transformer is connected.

4. Powering up
Bring power to the control panel by flipping the toggle switch to “on” on the variable transformer
Turn knob to approximately 120V by reading your voltmeter (variac numbers around the knob may not be accurate)
Plug in drop cord from motor in ports to your outlet (this allows the tap changer to go through stepping as needed)
Turn on computer go to TapTalk icon (you may have to search for it under the start menu)

5. TapTalk Settings
Once TapTalk has booted up, an access menu will appear
Leave boxes unchecked and drop down menus blank
In the control box, your COM Address should be set to 0
Control COM Protocol- BECO 2200
PC Communication Device- Serial COM Port
PC COM Port- COM1
PC Baud Rate-9600
Leave remaining boxes unchecked

6. Using the Control Panel
Use up and down arrows to find what you want to change
Press ENTER button to select, There will be a letter “C” in the bottom right hand corner of the screen. Press enter again to enable changing the setting, the “C” will then blink. Once you are done, press enter again to disable changing the setting.
Use this to change the bandwith, bandcenter, and time delay.

7. Using TapTalk
To change settings from the computer, go to control setup and click on setpoints
This will bring you to a screen where you can change all settings in the tap changer control

8. Operation Once you have set the setting to your desired points……
Drop the voltage on the variable transformer by decreasing the knob below your bandwith, check to see that the voltage regulator steps properly
This also works when the voltage rises above the bandwith, the regulator should then step in the opposite way.