Series 90-70 Programmable Controller Troubleshooting Guide, GFZ

Series 90-70 Programmable Controller Troubleshooting Guide, GFZ
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GE Fanuc Automation
Programmable Control Products
Î
GE Fanuc Automation
P.O. Box 8106
Charlottesville, VA 22906
GFZ–0086
Î
Series 90 TM–70
Programmable Controller
Troubleshooting Guide
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Î
GE Fanuc Automation
Programmable Control Products
Series 90 TM–70
Programmable Controller
Troubleshooting Guide
GFZ–0086
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November1993
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This document is based on information available at the time of its publication. While efforts
have been made to be accurate, the information contained in this document does not purport
to cover all details or variations in hardware and software, nor to provide for every contingency in connection with installation, operation and maintenance. This document may describe
features not present in all hardware and software systems. GE Fanuc Automation assumes no
obligation of notice to holders of this document with respect to changes subsequently made.
GE Fanuc Automation makes no representation or warranty, expressed, implied, or statutory
with respect to, and assumes no responsibility for the accuracy, completeness or usefulness of
the information contained in this document. No warranties of merchantability of fitness for
purpose shall apply.
Stand clear of controlled equipment when power is applied. If the problem is intermittent,
sudden unexpected machine motion could occur, causing injury. Also reference NFPA 70E
Part II for additional guidelines for safety practices.
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The following are trademarks of GE Fanuc Automation North America, Inc.
Alarm Master
PROMACRO
GEnet
Series 90
Modelmaster
ProLoop
Workmaster
CIMSTAR
Series Six
Logicmaster
CIMPLICITY 90–ADS
Series Three
CIMPLICITY PowerTRAC
Genius Power TRAC
Helpmate
CIMPLICITY
Series One
Genius
VuMaster
Series Five
Never reach into a machine to operate a switch since unexpected motion could occur, causing
injury.
Remove all electrical power at the Main Power Disconnect to ensure total power removal.
 Copyright 1993 GE Fanuc Automation North America, Inc.
All Rights Reserved.
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Always remove power before inserting or removing modules, or before connecting I/O cabling.
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This guide describes a logical sequence for troubleshooting your Series 90–70 programmable controller. The Series 90–70 PLC is a member of the Series 90TM family of programmable logic controllers from GE Fanuc Automation.
This is the first release of this Troubleshooting Guide. Included are models CPU models 731,
732, 771, 772, 781, 782, and CPM914. CPU models 788 and 789 are also included; however,
troubleshooting these models may require techniques beyond the scope of this Troubleshooting Guide.
At GE Fanuc Automation, we strive to produce quality technical documentation. After you
have used this troubleshooting guide, please take a few moments to write us with your comments and suggestions. Our address is: Manager Technical Publications, GE Fanuc Automation. PO Box 8106, Charlottesville, VA 22906
Drake C. Fink
Sr. Staff Systems Engineer
Series 90 TM–70 Programmable Controller Installation
Manual (GFK–0262).
Logicmaster TM 90–70 Programming Software User’s Manual (GFK–0263)
Series 90 TM–70 Programmable Controllers Reference
Manual (GFK–0265)
Series 90 TM–70 Programmable Controller Data Sheets (GFK–0600)
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Although your PLC CPU may be running in RUN/IO ENABLED mode, and you may have
communications between the PLC and Logicmaster 90, the system may not be operating correctly. The following pages suggest some areas to investigate:
Grounding:
D
Verify all power supply mounting screws are tightened.
D
Verify the green grounding wire provided with the power supply is securely
attached to the rack grounding stud.
D
Verify all racks are grounded to a common ground. Reference the System
Grounding Procedures in the Series 90–70 Programmable Controller
Installation Manual (GFK–0262) for additional information.
Loss of Rack Fault:
D
Verify all inter–rack cables are securely connected on both ends. Verify cables
connect to all racks.
D
Verify the bottom connector on the last Bus Receiver Module has a terminator
plug. (No terminator is needed on a Bus Transmitter Module when there are no
expansion racks.)
D
Verify all power supplies are powered on (Green LEDs on). Follow the same
troubleshooting procedures for expansion racks power supplies as you use for the
main rack.
D
Verify each expansion rack has a unique address. ONLY the rack containing the
CPU is address zero. All other racks are in the range 1 to 7. NO rack is in the
range 8 to 15.
D
D
D
D
Other Faults:
D
Position the cursor on the fault. Using Release 4 Logicmaster, press the ZOOM
(F10) key. Read the fault explanation and follow the suggestions for eliminating
the fault.
No Input:
D
Verify no LOSS OF MODULE fault for the module containing the input in the
I/O Fault Table. Replace the module if the LOSS OF MODULE fault is present.
D
D
D
D
D
D
–1–
If all the above are true and you still have LOSS OF RACK, then:
Power off all racks. Remove expansion rack cable from bottom connector on the
Bus Transmitter Module (BTM) in the main rack. Power on the main rack. You
should see LOSS OF RACK faults for all expansion racks in the PLC Fault Table.
Place the PLC in RUN mode. (If you have configured the LOSS OF RACK fault
to be FATAL, you will have to clear the PLC Fault Table before you can place
the PLC in RUN mode.)
Power off all racks. Connect expansion cable to next rack, so previous rack is
still in the chain. Connect terminator plug to bottom connector on BRM. Power
on all expansion racks. Power on main rack. LOSS OF RACK faults for all
non–connected expansion racks should appear in the PLC CPU Fault Table.
Place PLC in RUN mode. Replace BRM and cable if LOSS OF RACK fault
persists.
Continue debugging the expansion rack chain one rack at a time until all racks
have been added to the chain and no LOSS OF RACK faults occur.
Verify no ADDITION OF MODULE fault occurs in the I/O Fault Table when
you power cycle the PLC or store the configuration to the PLC. If so, the module
physically resides in the slot, but is not present in the PLC configuration. Add
the module to the configuration and restore the configuration.
Verify the %I address assigned for the input in the configuration is the same %I
address as used in the program.
Verify pins in the VME bus connector are not bent or corroded.
Verify the input device functions correctly.
Verify wiring from input device through terminal strip to input module is intact.
Verify presence of power at the input device.
D
D
Verify no fuses are blown.
Replace the module if other input channels on this module function.
No Output:
D
Verify no LOSS OF MODULE fault for the module containing the output in the
I/O Fault Table. Replace the module if the LOSS OF MODULE fault is present.
D
Verify no ADDITION OF MODULE fault occurs in the I/O Fault Table when
you power cycle the PLC or store the configuration to the PLC. If so, the module
physically resides in the slot, but is not present in the PLC configuration. Add
the module to the configuration and restore the configuration.
D
D
D
Verify the %Q address assigned for the output in the configuration is the same
%Q address as used in the program.
Verify pins in the VME bus connector are not bent or corroded.
Verify fuse on output module (if present) is not blown.
–2–
D
D
D
D
D
Verify the output device functions correctly.
Verify wiring from output module through the terminal strip to the field device
is intact.
Verify presence of power at the output module.
Verify no fuses are blown in the path from the output module to the field device
.
Replace the module if other output channels on this module function.
Genius Devices Do Not Function:
D
Verify the Genius Bus Controller appears in the configuration and the
configuration in the PLC and LM90 are equal.
D
Verify the %I/%Q addresses assigned to the Genius device in the configuration
match those used in the ladder logic.
D
Follow the general debug guidelines above for No Input and No Output.
D
Refer to the Series 90–70 Programmable Controller Genius Bus Controller &
Genius I/O System Troubleshooting Guide for more detailed Genius
Troubleshooting.
1.
WARNING: Do not discard the lithium–manganese dioxide battery in fire. Do not attempt to discharge the battery. The battery may burst or burn or release hazardous materials. Dispose of the battery as you would any hazardous material.
2.
CAUTION: After a power fault, the system will come back on in the mode (STOP/ IOENABLED, STOP/IODISABLED, RUN/IOENABLED, RUN/IODISABLED) in which it
was operating before power loss, unless a fatal fault occurs during the power up process.
3.
Supply (input) voltage tolerances for Series 90–70 power supplies:
IC697PWR710 & 711:
93 to 132 VAC, for
nominal 115 VAC input;
180 to 264 VAC, for
nominal 230 VAC input;
47 to 63 HZ
IC697PWR722
21.6 to 26.4 VDC for
24VDC nominal input
IC697PWR732
122.5 to 137.5 VDC for
125VDC nominal input
4. Total cable length must not exceed 50 feet between the CPU rack (rack 0) and the last
expansion rack. No termination plug is needed on a Bus Transmitter Module in a one–
rack system.
–3–
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START
IS POWER
SUPPLY LED
ON?
YES
NO
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IS TOP CPU
LED STEADY
ON?
YES
NO
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YES
IS TOP CPU
LED ALWAYS
BLINKING?
NO
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PAGE 1
ARE ALL 3
CPU LEDS
ON?
YES
NO
TOGGLE CPU SWITCH TO RUN
(UP) POSN. IF SWITCH IS UP,
TOGGLE IT OFF, THEN ON AGAIN
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(PAGE 2)
7
(PAGE 8)
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8
(PAGE 9)
ARE ALL 3
CPU LEDS
ON?
YES
13
(PAGE 13)
NO
ONLY TOP
CPU LED ON?
YES
NO
4
(PAGE 5)
6
(PAGE 7)
DIAG70A
GFZ-0086
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1
POSITION OF
PWR SUP ON/
OFF SWITCH?
ON
IS VOLTAGE
APPLIED TO
PWR SUP?
NO
YES
OFF
MOVE POWER
SUPPLY SWITCH
TO ON (UP)
POSITION
IS SUPPLY A
DUAL–VOLTAGE
SUPPLY?
NO
YES
IS POWER
SUPPLY LED
ON?
YES
START
(PAGE 1)
PAGE 2
NO
DOES
SUPPLY
VOLTAGE =
SETTING?
NO
CHANGE POWER
SUPPLY JUMPER
TO AGREE WITH
SUPPLY VOLTAGE.
YES
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IS LINE FUSE
BLOWN?
NO
YES
REPLACE
LINE
FUSE
IS SUPPLY
VOLTAGE IN
TOLERANCE?
YES
2
(PAGE 3)
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APPLY
PROPER
VOLTAGE
START
(PAGE 1)
NO
CORRECT FAULTY
SUPPLY VOLTAGE
1
(THIS PAGE)
DIAG70B
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· REMOVE POWER
· REMOVE ALL CARDS
· APPLY POWER
IS POWER
SUPPLY LED
ON?
NO
YES
· REMOVE POWER
· INSTALL NEXT CARD
· APPLY POWER
IS POWER
SUPPLY LED
ON?
YES
NO
ARE ALL
MODULES
INSTALLED?
YES
PAGE 3
START
(PAGE 1)
NO
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· REMOVE POWER
· REPLACE POWER SUPPLY
· APPLY POWER
IS POWER
SUPPLY LED
ON?
NO
YES
3
(PAGE 4)
· REMOVE POWER
· REPLACE FAULTY MODULE
· APPLY POWER
IS POWER
SUPPLY LED
ON?
YES
NO
3
(PAGE 4)
DIAG70C
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3
POWER SUPPLY
REPLACED
ONCE?
NO
YES
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Á
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· REMOVE POWER
· REPLACE POWER SUPPLY
· REMOVE POWER
· REMOVE ALL MODULES
· VERIFY PINS ON MODULES ARE
NOT CORRODED OR BENT
· REPLACE MODULES AS NECESSARY
· REPLACE RACK
· VERIFY RACK AND POWER SUPPLY
GROUNDING
· REINSTALL POWER SUPPLY
· REINSTALL MODULES
· APPLY POWER
START
(PAGE 1)
PAGE 4
DIAG70D
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4
CAN CPU
COMMUNICATE
WITH LM90?
NO
YES
IS CPU IN
STOP/FAULT
MODE?
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ÁÁÁÁÁ
10
(PAGE 11)
NO
YES
5
(PAGE 6)
PAGE 5
NO
IS CPU IN
STOP/HALT
MODE?
YES
NO
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7
(PAGE 8)
PLACE PLC IN RUN
MODE
YES
IS FAULT
SYSTEM
CONFIG
MISMATCH?
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ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
DETERMINE &
CORRECT CAUSE
OF FATAL FAULT
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
USE LM90 TO
CLEAR PLC & I/O
FAULT TABLES
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ ÁÁÁÁÁ
ÁÁÁÁÁÁÁ ÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ARE ALL 3
CPU LEDS
ON?
NO
START
(PAGE 1)
YES
ÁÁÁÁÁ
Á
ÁÁÁÁÁ
ÁÁÁÁÁ
13
(PAGE 13)
DIAG70E
ÁÁÁÁÁ
Á
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
5
THE RACK AND SLOT OF THE
MISMATCHED MODULE ARE
GIVEN IN THE PLC FAULT TABLE
AS A DECIMAL NUMBER (E.G., 0.1,
1.3, ETC.) AT THE FAR LEFT SIDE
OF THE TABLE.
ÁÁ
ÁÁ
YES
NO
CHANGE LM90 CONFIG OR
HARDWARE SO BOTH ARE
THE SAME.
PAGE 6
· EXIT I/O CONFIG
· SELECT & CLEAR PLC FAULT TABLE
· SELECT & CLEAR I/O FAULT TABLE
· SELECT UTILITIES
· STORE CONFIGURATION TO PLC
STILL
CONFIG
MISMATCH?
YES
NO
· SELECT LM90 CONFIG
· SELECT I/O CONFIG
IS CONFIG’D
TYPE SAME AS
THE HARDWARE?
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ ÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ ÁÁÁÁÁ
ÁÁÁÁÁÁÁ ÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁ
ÁÁÁÁÁ
PLACE PLC IN RUN MODE
ÁÁ
ARE ALL 3
CPU LEDS
ON?
NO
START
(PAGE 1)
YES
13
(PAGE 13)
DIAG70F
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
6
ONLY TOP,
CENTER CPU
LEDS ON?
YES
NO
ONLY TOP,
BOTTOM, CPU
LEDS ON?
YES
NO
DEFECTIVE CPU.
CALL YOUR
DISTRIBUTOR FOR
REPLACEMENT CPU.
PAGE 7
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Á
ÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
RUN I/O DISABLED.
TOGGLE CPU SWITCH
OFF, THEN ON.
(UP POSITION)
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
STOP I/O ENABLED
.
TOGGLE CPU SWITCH
OFF, THEN ON.
(UP POSITION)
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁ
Á
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ARE ALL 3
CPU LEDS
ON?
YES
NO
· REMOVE POWER
· REPLACE CPU
· APPLY POWER
ÁÁÁÁÁ
Á
ÁÁÁÁÁ
ÁÁÁÁÁ
13
(PAGE 13)
START
(PAGE 1)
DIAG70G
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁ
ÁÁÁÁÁ
7
TOP CPU LED
FAST OR SLOW
BLINK?
FAST
SLOW
POWER CYCLE
PLC
TOP CPU LED
STILL
BIINKING?
NO
4
(PAGE 5)
PAGE 8
YES
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁ
ANY BLANK
SLOTS
BETWEEN CPU
& SMART
CARDS?
NO
YES
· REMOVE POWER
· ELIMINATE EMPTY SLOT
· APPLY POWER
· REMOVE POWER
· REPLACE CPU
· APPLY POWER
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁÁÁÁ
· REMOVE POWER
· VERIFY MODULE PINS NOT BENT OR BROKEN
· RESET ALL MODULES IN BACK PLANE
· APPLY POWER
ÁÁ
ÁÁÁÁÁÁ
ÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁ
ÁÁ
ÁÁÁÁ
ÁÁ
ÁÁÁÁ
ÁÁÁÁ
YES
TOP CPU LED
BLINKING?
NO
START
(PAGE 1)
DIAG70H
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
Á
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
8
PROBLEMS
FOUND WITH
MODULE?
TOP CPU LED
STEADY ON?
YES
START
(PAGE 1)
YES
NO
POWER CYCLE
PLC
NO
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁ
Á
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁ
· REMOVE POWER
· REMOVE MODULES ONE
BY ONE ANDINSPECT
MODULE FOR BENT PINS &
CORROSION
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
REPLACE MODULE
· SEAT ALL MODULES
FIRMLY IN RACK
· APPLY POWER
TOP CPU LED
STEADY ON?
NO
YES
ÁÁÁÁ
ÁÁ
ÁÁÁÁ
ÁÁ
ÁÁÁÁ
ÁÁÁÁ
START
(PAGE 1)
· REMOVE POWER
· REPLACE CPU
· APPLY POWER
9
(PAGE 10)
PAGE 9
DIAG70J
ÁÁÁÁÁÁÁ
ÁÁÁÁÁ ÁÁÁÁÁÁÁ
ÁÁÁÁÁ ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁ
Á
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
9
TOP CPU LED
STEADY ON?
YES
START
(PAGE 1)
NO
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁ
ÁÁÁÁÁÁ
ÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁ
ÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ
ÁÁ
ÁÁÁÁÁÁ ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁ ÁÁÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁÁ ÁÁÁÁ
ÁÁÁÁ
ÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁ
· REMOVE POWER
· TRY ORIGINAL CPU
IN ANOTHER SYSTEM
CPU
FUNCTION IN
OTHER
SYSTEM?
NO
· REMOVE POWER
· REPLACE CPU
· APPLY POWER
YES
· REMOVE POWER
· REPLACE POWER
SUPPLY AND BACKPLANE
· APPLY POWER
START
(PAGE 1)
START
(PAGE 1)
PAGE 10
DIAG70K
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
10
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁ
ÁÁÁÁÁÁÁÁ Á
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
RACK GROUND
EQUAL
PROGRAMMER
GROUND?
NO
ENSURE RACK &
PROGRAMMER
GROUND ARE THE
SAME.
YES
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
POWR CYCLE PLC
& PC*
*PC REFERS TO THE
PERSONAL COMPUTER
WHICH RUNS THE LM90
SOFTWARE.
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁ ÁÁÁÁÁ
ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ ÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ ÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁ
Á
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
CAN CPU
COMMUNICATE
WITH LM90?
YES
4
(PAGE 5)
NO
· VERIFY PLC COMMUNICATIONS
OPTION SELECTED IN LM90
SETUP (F9) MATCHES PACKAGE
TYPE (WSI, STANDARD SERIAL,
ETHERNET)
· VERIFY PC COMMUNICATES
WITH ANOTHER CPU
11
(PAGE 12)
PAGE 11
DIAG70L
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁ
ÁÁÁÁÁÁÁ
Á ÁÁÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
11
12
(PAGE 13)
ETHERNET
WHICH
COMM TYPE?
SERIAL COMM
WSI
· VERIFY SNP/PARALLEL CHOICE
IN PROG MODE & SETUP MENU
(F7 ON PROGRAMMER MENU).
· CHECK SERIAL PORT SETTINGS
IN CPU AND LM90 IF USING
SERIAL.
· CHECK CABLE CONNECTION AT
WSI AND AT BTM (PARALLEL)
OR CPU (DIRECT/MULTIDROP).
· IF MULTIDROP, VERIFY CPU IS
SELECTED (F7, F4).
· VERIFY NO OTHER DEVICE IN
THE PC USES THE SAME
ADDRESS AS THE WSI (CE00–
CFFF) OR SAME INTERRUPT.
(IRQ3 ON WMII).
PAGE 12
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁ
ÁÁ
ÁÁÁÁ
Á
ÁÁÁÁ
ÁÁÁÁ
· CHECK SERIAL PORT SETTINGS
IN CPU AND LM90.
· VERIFY LM90 GENERATES NO
ERRORS WHEN STARTING THE
LM90 PROGRAMMER PACKAGE.
· CHECK CABLE CONNECTIONS
FROM COMMUNICATIONS PORT
ON PC TO CONVERTER TO PLC.
· VERIFY CONVERTER AND
CABLES WORK WITH ANOTHER
PLC.
· IF MULTIDROP, VERIFY CPU ID
IS SELECTED. (F7, F4).
· REMOVE ANY MOUSE DRIVER
OR CONFLICTING TERMINATE–
AND–STAY RESIDENT ROUTINE
FROM YOUR PC.
13
(PAGE 13)
DIAG70M
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁ
12
· CHECK CABLE CONNECTION
BETWEEN ETHERNET PORT ON
PC AND ETHERNET ADAPTER.
· VERIFY ETHERNET CABLE IS
SOLIDLY CONNECTED TO
ETHERNET ADAPTER.
· VERIFY PLC IS IN PLC LIST.
USE NETWORK UTILITY IN LM90
UTILITIES (F7, F1 IN MAIN MENU)
TO BROWSE NETWORK FOR
PLCS.
· VERIFY PROPER PLC CPU IS
SELECTED IN PLC CONNECTION
MENU (F7, F3).
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
ÁÁÁÁÁ
Á
Á
ÁÁÁÁÁÁ
ÁÁÁÁ
Á
ÁÁÁÁÁÁ ÁÁ
ÁÁÁÁ
ÁÁÁÁ
ÁÁÁÁÁÁ ÁÁ
ÁÁÁÁÁÁ ÁÁÁÁ
13
IS SYSTEM
OPERATING
OK?
YES
PROBLEM
SOLVED!
NO
ÁÁÁÁÁÁÁÁÁÁÁ
Á
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
ÁÁÁÁÁÁÁÁÁÁÁ
REFER TO THE FOLLOWING PAGES
”ADDITIONAL TROUBLESHOOTING
TIPS FOR THE 90–70 PLC” FOR MORE
INFORMATION.
IF YOU ARE STILL UNABLE TO SOLVE
YOUR PLC PROBLEM, THEN CALL
YOUR GE FANUC DISTRIBUTOR OR
THE GE FANUC HOTLINE FOR
ASSISTANCE.
PAGE 13
DIAG70N
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