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What is use of the accessory 11BE for the 300 Series Transfer Switch?

If optional Accessory 11BE is ordered, the controller is factory configured with additional functions: communication, programmable exerciser, event log, common alarm output contact option OP1 (in the controller).

On three pole switches the following additional functions are enabled: Three phase emergency sensing, Emergency source unbalance, and Phase rotation sensing. The controller has additional screens for these functions, please see below for further information.

Communication. Under the General settings, a screen allows the user to configure Communication (RS485 port). The baud rate can be set off, 9600 – 115200. The address can be set 1 to 247. See the Appendix for setting DIP switches S7 and S8. S7 sets the terminating resistor; S8 sets 2 wire or 4 wire. See pages 4 and 13.

Programmable Exerciser. Under the Engine Exerciser settings, a screen allows the user to configure the optional exerciser. This exerciser provides seven programmable exercise periods. They can be set for once a week (all), alternate weeks (1st, 2nd, 3rd, 4th, 5th week), and each with an adjustable start and exercise period. See pages 4, 17 and 18. Event Log.

Event Log. Under the main menu, a screen allows the user to view events. Use the up and down keys to navigate the event list (last 300 events). See pages 4, 19, 35 (Appendix event types), and 36 (Appendix event causes).

Engine/Common Alarm Input* The Engine/Common Alarm Input is used to connect an external alarm signal from separate equipment to the Transfer Switch controller. This status is visible via screen, alert LED, communications, and will also be logged as an event. Refer to the wiring diagram provided with the transfer switch for connection and rating details. If allowable this setting can be enabled under the Common Alarms section of the General Settings. *This physical input is shared with the load shed (Acc 30) functionality and as a result only one of these can be used at a time and they cannot be used simultaneously.

Common Alarm Output. Under the General settings, a screen allows the user to configure Common Alarms. The Output OP1 contact (in the controller) can be configured to operate when a common alarm occurs. Refer to the wiring diagram provided with the transfer switch for connections and rating of the OP1 contact. See pages 5, 15, 16 and 17 for settings (Settings, Features).

3 Phase Emergency Sensing On controllers configured for 3 phase the 11BE will enable the controller to display all three line to line voltages for the emergency source on the screen.

Phase Rotation Monitor Under the Features menu the 11BE will allow for 3 phase switches to enable the phase rotation monitor. This feature will allow the user to select between an ABC or CBA phase rotation and will not consider a source acceptable unless it matches the selected rotation orientation.

Emergency Source Unbalance Under the features menu the user will be allowed to enable emergency source unbalance for 3 phase switches with 11BE. When enabled the emergency source will not be considered acceptable if the line to line voltages are unbalanced beyond the user configured unbalance dropout.


Please refer to the link below for further information about 300 Series Transfer Switch and Accessory 11BE .

https://download.schneider-electric.com/files?p_enDocType=User+guide&p_File_Name=asc-ts-um-300g-control.pdf&p_Doc_Ref=ASC-TS-UM-300G-CONTROL

https://asco-power.cld.bz/ASCO-Power-Technologies-Products-Digital-Binder/139/

Part 1 - Event Log:


Part 2 - Engine Exerciser:


Part 3 - RS485 Port :


Part 4 - OP1 Relay-Common Alarm:

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