Cpu Racks And Expansion I/O Racks - Omron SYSMAC C200HS Installation Manual

CPU Racks and Expansion I/O Racks

Other Error Messages
6-5

CPU Racks and Expansion I/O Racks

Error
POWER indicator does not light.
Fuses are frequently blown.
RUN indicator does not light.
RUN indicator is lit, but RUN output
does not turn on.
Relays do not operate from a
particular number onwards.
Outputs (or inputs) turn ON for
particular Relay numbers.
All the bits from a particular Unit turn
ON.
A number of other error messages are detailed within this manual. Errors in pro-
gram input and debugging and errors in cassette tape operation are detailed in
the C200HS Operation Manual (W235). Information on error flags is also con-
tained in the C200HS Operation Manual (W235).
Probable cause
A fuse is blown.
The voltage selector terminal setting is
wrong.
Pattern short-circuiting or damage
from fire
The program has an error (no END
instruction).
The voltage selector terminal setting is
wrong.
A power supply line is defective.
Special I/O Units are assigned
overlapping unit numbers.
A Slave Unit's power supply is turned
off, or no Unit is set as the terminator.
The power circuit is defective.
The I/O bus is defective.
Section 6-5
Possible correction
Replace the fuse.
Correct the voltage selector terminal
setting.
Replace the CPU or Power Supply
Unit.
Correct the program.
Correct the voltage selector terminal
setting.
Replace the CPU.
Correct the unit number assignments.
Turn on the power to the Slave Unit,
or set a Unit as the terminator.
Replace the CPU.
Replace the Backplane.
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