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Preliminary Data Sheet

13

International

Rectifier

IRVR101

Status Signals from the Regulator (E, F, and G)

3 bits used to indicate an electrical fault, mechanical fault, or high temperature.

E. High Temperature, 1 bit (1:0)

F. Mechanical fault, 1 bit (1:1)

G. Electrical, 1 bit (1:2)

Error indication

Byte 1

Bit:

210

High Temperature

001

Mechanical

010

Electrical

100

No fault present

000

Excitation Duty Cycle Signal from the Regulator (H)

5 bits (1:3-1:7), 32 values. Information needed for calculation of alternator output current

and torque.

PWM Field

Excitation Duty

Cycle

Byte 1

Bit:

76543

96.875 and 100%

11111

93.75

11110

90.625

11101

87.5

11100

84.375

11011

81.25

11010

78.125

11001

75

11000

71.875

10111

68.75

10110

65.625

10101

62.5

10100

59.375

10011

56.25

10010

53.125

10001

50

10000

46.875

01111

43.75

01110

40.625

01101

37.5

01100

34.375

01011

31.25

01010

28.125

01001

25

01000

21.875

00111

18.75

00110

15.625

00101

12.5

00100

9.375

00011

6.25

00010

3.125

00001

0

00000