Omron SYSMAC C200H-ASC02 Operation Manual page 146

Troubleshooting
Abnormalities
Item
All indicators do not light.
ERR indicator comes on.
ERR 1 indicator comes on.
Initial screen is <<PROGRAM
MEMORY ERROR>>, and CTRL+X is
ineffective.
Inspection Items
The following items should be periodically inspected.
Item
Environment
Mounting condition
Maintenance Parts
The battery life is 5 years at 25
age drops, the ERR 1 LED indicator blinks, and battery error flag (word n+3 bit 06, where n = 100 + 10 x ma-
chine number) turns ON. Replace the battery within 1 week after the indicator blinks.
Cause
Power to PC is OFF.
ASCII Unit is not mounted on PC
securely.
One of Special I/O Units on PC is
defective. PC does not start in this
case.
Unit numbers are assigned to Special
I/O Unit in duplicate. PC does not start
in this case.
Refreshing between PC and ASCII
Unit is not performed correctly. Only
ASCII Unit stops in this case.
Power to peripheral device is OFF.
Cable for device is disconnected.
Breakage in cable or faulty contact
exists.
Transfer rates and communication
conditions of ASCII Unit and
peripheral device do not match.
Battery connector is disconnected.
Battery voltage has dropped.
BASIC program is damaged.
particulars
Is ambient temperature appropriate?
Is ambient humidity appropriate?
Is dust built up?
Are cable screws loose?
Is cable broken?
o
C. The battery life is shortened at higher temperatures. When the battery volt-
Appendix F
Correction
Turn ON power to PC.
Tighten mounting screws.
Exchange defective Special I/O Unit
with new one. Defective unit is
identified by $ when I/O table is read.
Correct unit number assignment. Unit
numbers are displayed when I/O table
is read.
Find and remove cause and restart
ASCII Unit by turning ON and then
OFF auxiliary memory relay (AR 0100
to 0109) corresponding to ASCII Unit.
If ASCII Unit still does not start,
replace Unit with new one.
Turn ON power to device.
Correctly connect cable, and tighten
screws.
Repair or replace cable.
Correct transfer rates and
communication conditions.
Correctly connect battery connector.
Replace battery.
Press CTRL+I, and BASIC program
will be erased. (If program is backed
up in EEPROM, program can later be
restored by LOAD command.)
Criteria
0± to 55°C
35% to 85% (without condensation)
Must be free from dust.
Must not be loose.
Must be mounted properly.
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