故障排除Troubleshooting.pdf - 第7页

Page 5 IM T r oubleshooting 52489101 Rev . B This document supports Radial 88, VCD Seq 88, and Jumper Wire 88 machines. P r obl e m Ch e c k Pow er Supp ly : AT X L E D Dis p la y T he VM E c has si s pow er s upply ac c…

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Page 4
52489101 Rev. B IM Troubleshooting
This document supports Radial 88, VCD Seq 88, and Jumper Wire 88 machines.
7. While the centering assembly centers a component two positions
before the insertion position, the cut and clinch assembly raises to the
bottom of the board.
8. The insertion tooling cuts the components from the insertion chain
clips, forms the component leads, and then inserts the components at
the programmed position in the board.
9. The cut and clinch assembly senses component lead presence, cuts the
component leads, and then forms the component leads under the board
creating a mechanical bond to the board.
10. The insertion head tooling and cut and clinch assembly retract
completing the component insertion sequence.
11. The process continues until the pattern program is complete and all
required components are in place.
VME System
The following information on the VME is primarily symptom driven. It is
already assumed that if the machine fails to operate the most logical causes
have been checked. For example, all machine components are plugged in,
circuit breakers are on, interlock is not broken (doors closed) and machine is
not in a limit condition.
To troubleshoot the VME, it is recommended that the technician have an
understanding of the layout and the available reference documentation;
electrical drawings, IM UPS and IM Diagnostics.
The VME hardware consists of 7 major elements:
• Power Supply
• VME bus Backplane
• Embedded PC (separate from the VME Bus)
• Real-time Controller
• Motion Controller or Controllers
• Mini MIT Interface (VCD/Sequencer only)
Page 5
IM Troubleshooting 52489101 Rev. B
This document supports Radial 88, VCD Seq 88, and Jumper Wire 88 machines.
Problem Check
Power Supply:
ATX
LED Display
The VME chassis power supply accepts 120 VAC and output.
Voltages at the back plane are as follows:
+5 VDC (4.90 to 5.20)
+12 VDC (11.70 to 12.5)
-12 VDC (-11.7 to -12.5)
Power Supply:
VME Chassis
Machine does not run
Con tinued on next pa ge…
AC Voltage should be checked at the AC chassis, then at the VME power supply
and ATX power supply input. If not present, check VME input fuse.
AC Voltage
(Qty of 2)
Troubleshooting Table - VME System
Comments/Corrective Action
DC voltages from the power supply in the VME are adjustable through the cover
on the power supply.
Voltages at the back plane are as follows:
+5 VDC (5.00 to 5.10)
+12 VDC (12.00 to 12.20)
-12 VDC (-12.00 to -12.20)
Normal LED display is:
"Run" LED on PC-2 (Real Time Controller) illuminated at all times.
"BM" LED illuminated when PC-2 is communicating with the bus.
"Run" LED on PC-1 (embedded PC) blinking when computer is in use.
See the VME Chassis Electrical Diagram.
(Fuse is located inside the power entry module, accessed from rear of VME
chassis.) Input range for VME is 90 to 132 VAC.
Page 6
52489101 Rev. B IM Troubleshooting
This document supports Radial 88, VCD Seq 88, and Jumper Wire 88 machines.
Problem Check
Board
USER1 OFF
FAIL ON the n OFF
SPEED ON green
ACT Intermittent blinking green
VCD and Radial
Only:
PC5
(GMC Board)
"Snaking" pattern
The 7-se
g
ment display alternates
between 0 and the boot loader
version. For example, Version 2.1
would display "2", then ".", then "1",
then "0".
PC6
(MMIT Flash)
FAIL ON until initialized, then OFF
Board
USER1 OFF
FAIL OFF
SPEED ON green
ACT Intermittent blinking green
"Snaking" pattern
The 7-segment display indicates the
board is functioning normally.
Blank or steady,
unchanging pattern
Malfunction of software or hardware.
Do the following u ntil rep aired:
1. Power cycle.
2. Replace GMC board.
3. Troubleshoot the VME chassis. See
VME Troubleshooting Guide.
No "snake" pattern
when CFG turned to
other than 0.
The CFG switch provides diagnostic
functions and has no effect on GMC
operations. Turn to 0 and confirm
snakin
g
p
attern has resumed.
PC6
(MMIT Flash)
FAIL OFF
LED Run
Sequence
LED Sequence
PC1
(3100)
Machine does not run
(continued)
To e nsure prope r operation, push the board into the socket to the extent of its
travel. Make sure that the mounting screws on the outside of each board are
tightened.
VCD and Radial
Only:
PC5
(GMC Board)
VME for L oose
PC Boards
Sometimes PC boards are jarred loose during travel, causing poor electrical
contact between the board and socket.
Troubleshooting Table - VME System
Comments/Corrective Action
Con tinued on next pa ge…
PC1
(3100)
LED Sequence
LED Power Up
Sequence