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Chapter 11
Troubleshooting
11-10
Table 11.E
Test Point Descriptions
Test Point
Description
TP2
Resolver:
8.000 kHz sine wave 3.0V RMS
TP7
Triangle:
Triangle oscillator 2.5kHz , 5.5 volts peak
TP8
PWM B:
Phase B transistor turn on signal
TP9
PWM A:
Phase A transistor turn on signal
TP10
PWM C:
Phase C transistor turn on signal
TP11
+5V DC
TP12
Signal Common
TP13
+12V DC
TP14
–12V DC
TP15, 16
IALPHA and IBETA:
Sinusoidally varying DC level representing the current
command to the current loop scaled for 2.5V peak =
rated motor current
TP17
IT Ref:
Voltage representing current reduction amount
TP19
Buffered Output:
Velocity input
TP20
Buffered Output:
Torque input
TP21
Ext Current Limit:
Indicates the external current limit command
(3V = rated)
TP28
Signal Common
TP29, 30
IA, IB Feedback
Buffered motor current feedback signals scaled for 2.5
volts peak = rated motor current
TP31
Signal Common
TP50
ABS Rotor:
Signal used to detect resolver loss. Nominal value =
2.596V. Trip point is approximately 0.8V.
TP51
9V Ref:
Signal feeding output d/a’s reference
TP52
Microprocessor Reset:
Momentarily ground to reset microprocessor
TP40
Sine (wt):
4.0 kHz 2.0 Vrms sine wave used for A Quad B
TP41
Sine (wt) Sine (theta):
2.0 Vrms modulated waveform used for A Quad B
TP42
Sine (wt) Cosine (theta):
2.0 Vrms modulated waveform used for A Quad B
TP60
Display Reset:
Ground to reset display microprocessor
TP61
Test Result:
Indicates a pass or fail result from a self test initialization
Содержание ALLEN-BRADLEY 1391-DES
Страница 1: ...User Manual 1391 DES Digital AC Servo Drive...
Страница 9: ...Chapter 1 Introduction 1 10 End of Chapter...
Страница 37: ...Chapter 5 Inputs Outputs and Switch Settings 5 8 End of Chapter...
Страница 84: ...Chapter 8 Start Up 8 16 End of Chapter...
Страница 88: ...Chapter 9 1326 AC Servomotors 9 4 End of Chapter...
Страница 106: ...Chapter 11 Troubleshooting 11 12 End of Chapter...
Страница 122: ...Appendix B Interconnect Drawings B 12 End of Appendix...
Страница 126: ...Appendix C Cable Information C 4 End of Appendix...
Страница 134: ...Appendix E Parameter Record E 8 End of Appendix...
Страница 135: ...Notes...
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Страница 147: ...IMC is a trademark of Allen Bradley Company Inc...