Diagnostics and repair
W-4510 Weigh Scale Technical Reference Manual
113
Frequency Input
Start
Is
correct
signal present at
TB4-1 for input 1
and/or TB4-5
for input
2?
Is
same
signal present
at U5-3 for input 1
and/or U7-3
for input
2?
Does
+5VDC
measure
across (8-5) at U5
for Input 1 and/or
U7 for
input
2?
Replace CPU
board
End
Problem with
sensor or
external wiring
Check jumpers
and I/O signal
cable
Refer to power
supply flow chart
Yes
No
Yes
Yes
No
No
Figure 54: Smart Pro frequency input
Summary of Contents for W-4510
Page 9: ...Preface viii W 4510 Weigh Scale Technical Reference Manual Notes...
Page 15: ...Preface xiv W 4510 Weigh Scale Technical Reference Manual Notes...
Page 17: ...Preface xvi W 4510 Weigh Scale Technical Reference Manual Notes...
Page 29: ...Introduction 12 W 4510 Weigh Scale Technical Reference Manual Notes...
Page 125: ...Calibration 108 W 4510 Weigh Scale Technical Reference Manual Notes...
Page 145: ...Diagnostics and repair 128 W 4510 Weigh Scale Technical Reference Manual Notes...
Page 155: ...Appendix I Parameter blocks 138 W 4510 Weigh Scale Technical Reference Manual Notes...