Exciter Selector Board model number IS200ESELH3A is used primarily for corresponding with the EMIO board by sending gate pulse signals, the signals used by the EMIO board will then be sent to one of the EGPA boards through up to six sets of cables, when these signals have been sent to the EGPA boards it will help with firing SCRs.
As the third and final group of ESEL boards the IS200ESELH3A board will use a different number of bridge drivers, this board contains six bridge drivers. When being used in conjunction with EGPA models and the EGPA models are mounted in the power conversion cabinet if there are any redundant control models there must be two ESEL boards.
The IS200ESELH3A board has very little information or market availability. Although this board is mostly obsolete AX Control does its best to keep this board in stock. There are two manuals that can be used with this board, one is the GEH-6632 which is typically used with the entire EX2100 series, and the other manual which is the GEI-100456 is a product-specific manual used with the IS200ESEL parts.