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Preliminary Data Sheet

12

International

Rectifier

IRVR101

Excitation Limitation (current or duty cycle) Signal to the Regulator (D)

2.0 - 7.75 amps, 5 bits (3:0 – 3:4), 32 values (bit select option: 3:5 = 0).

Limitation of the excitation current to the rotor. Default; max excitation current (100% duty cycle).

PWM Field Current

Maximum

Excitation

Byte 3

Bit:

(5)43210

7.75

(0)11111

7.5

(0)11110

7.25

(0)11101

7.0

(0)11100

6.75

(0)11011

6.5

(0)11010

6.25

(0)11001

6.0

(0)11000

5.75

(0)10111

5.5

(0)10110

5.25

(0)10101

5.0

(0)10100

4.75

(0)10011

4.5

(0)10010

4.25

(0)10001

4.0

(0)10000

3.75

(0)01111

3.5

(0)01110

3.25

(0)01101

3.0

(0)01100

2.75

(0)01011

2.5

(0)01010

2.25

(0)01001

2.0

(0)01000

2.0

(0)00111

2.0

(0)00110

2.0

(0)00101

2.0

(0)00100

2.0

(0)00011

2.0

(0)00010

2.0

(0)00001

Full field

(0)00000

0-100%, 5 bits (3:0 – 3:4), 32 values (bit select option: 3:5 = 1).

Limitation of the excitation duty cycle to the rotor. Default 100%

PWM Field Duty

Cycle Maximum

Excitation

Byte 3

Bit:

(5)43210

100%

(1)11111

93.75

(1)11110

90.625

(1)11101

87.5

(1)11100

84.375

(1)11011

81.25

(1)11010

78.125

(1)11001

75

(1)11000

71.875

(1)10111

68.75

(1)10110

65.625

(1)10101

62.5

(1)10100

59.375

(1)10011

56.25

(1)10010

53.125

(1)10001

50

(1)10000

46.875

(1)01111

43.75

(1)01110

40.625

(1)01101

37.5

(1)01100

34.375

(1)01011

31.25

(1)01010

28.125

(1)01001

25

(1)01000

21.875

(1)00111

18.75

(1)00110

15.625

(1)00101

12.5

(1)00100

9.375

(1)00011

6.25

(1)00010

3.125

(1)00001

0

(1)00000