GENERAL DESCRIPTION

The Basler XR2002 and XR2002F PMG Voltage Regulators provide the dc exciter field

regulation to PMG (Permanent Magnet Generator) equipped 50 or 60 Hz brushless generators.

The Regulator is available in two models:

XR2002: Standard (without a Voltage Limited Volts-per-Hertz characteristic).

XR2002F: With a Voltage Limited Volts-per-Hertz characteristic.

b. Input power may be provided by either a single-phase or a three-phase PMG, or optionally, it

may be supplied by the generator output.

TERMINALS 51.52.53. 54. AND 55 (and 56 on units S/N 1 through 236)

a. These terminals allow additional external accessories and modules to be combined with the

voltage regulator to expand the capabilities of the regulator. An internal jumper must be

connected to terminal 54 for normal regulator operation. An external jumper is normally

connected between terminals 53 and F+. This jumper may be replaced by an excitation

shutdown switch. No connection should be mad to terminals 51. 52. 55. or 56 unless so directed

by an accessory device instruction manual. Refer to Paragraph 2-5.

b. Note that on units with serial numbers 001 through 236. terminal 56 is used in lieu of terminal

55. On units with serial numbers 237 and higher, terminal 56 is not present and terminal 55 is

used for the external connections.