故障排除Troubleshooting.pdf - 第8页

Page 6 52489101 Rev . B IM T roubleshooting This document supports Radial 88, VCD Seq 88, and Jumper Wire 88 machines. P r obl e m Ch e c k Bo ar d U SER 1 OF F F A IL O N th e n O F F SPE ED ON green AC T I nte rm i t t…

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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
Page 7
IM Troubleshooting 52489101 Rev. B
This document supports Radial 88, VCD Seq 88, and Jumper Wire 88 machines.
Problem Check Comments/Corrective Action
Monitor has AC power.
Power plug is plugged into
monitor and AC assembly.
Power on, LED on.
It is possible to plug the machine monitor or some other monitor directly
into the embedded PC board in the VME chassis, bypassing the VGA
cable in the machine.
If another machine or an office PC is available, try plugging the machine
monitor into it.
Fuse or circuit breaker OK.
VGA cable connected and
good.
+5 volt DC Power Output
from power supply.
If the monitor displays the BIOS screen (test size memory), the embedded
PC and monitor are probably OK, therefore, the software or drivers are at
fa ult.
If the monitor and cable check out, the embedded PC might be defective.
Check for +5 and +12 volts at
hard drive connectors.
Check wire cables for
breakage, wrong polarity,
poor connections.
Note: The drives and embedded PC are very similar to standard PC
compatible devices and use similar troubleshooting techniques.
Check board using IM
Diagnostics
IM Diagnostics bypasses the CPU-30, which usually supervises the
operators of the motion control board. Reference the electrical drawings.
Check encoder function
Using IM Diagnostics, cause the axis to move. (Use care to not run into
another assembly or into a limit switch.)
Ax is no t fu nctio ning
properly
Ch eck axis
Try zeroin
g
the problem axis usin
g
IM Dia
g
nostics. (Use care so as not to
run into another assembly or into a limit switch.) Try swapping motion
control board or boards.
Troubleshooting Table - VME System
Displa y Monitor Bla nk
Motion Control Board