Mitsubishi Electric MELSEC iQ-R Series User Manual page 243

Error Error name
code
2521H Invalid interrupt
2522H Invalid interrupt
2610H Inter-module
synchronization signal
error
2611H Inter-module
synchronization signal
error
2630H Multiple CPU
synchronization signal
error
2631H Multiple CPU
synchronization signal
error
3451H Hardware failure
Error details and cause
• Even though an interrupt was
requested, there is no interrupt factor.
• An interrupt was requested from the
module with no interrupt pointer
setting.
• An inter-module synchronization error
has been detected.
• An inter-module synchronization error
has been detected.
• The module set as the inter-module
synchronous master has detected a
module parameter error.
• A multiple CPU synchronization error
has been detected.
• A multiple CPU synchronization error
has been detected.
• A hardware failure has been
detected.
Corrective action
• Take measures to reduce noise.
• Reset the bus. If the same error code
is displayed again, the possible cause
is a hardware failure of the CPU
module, base unit, or module (I/O
module or intelligent function module)
connected. Please contact your local
Mitsubishi Electric sales office or
representative.
• Check and correct the interrupt
pointer setting in the module
parameters.
• Take measures so that no interrupt is
requested from the module with no
interrupt pointer setting.
• Check and correct the interrupt
setting in the buffer memory of the
intelligent function module.
• Check the module set as the inter-
module synchronous master.
• Take measures to reduce noise.
• Reset the bus. If the same error code
is displayed again, the possible cause
is a hardware failure of the CPU
module, base unit, extension cable, or
module (I/O module or intelligent
function module) connected. Please
contact your local Mitsubishi Electric
sales office or representative.
• Take measures to reduce noise.
• Correct the inter-module synchronous
master settings.
• Reset the bus. If the same error code
is displayed again, the possible cause
is a hardware failure of the CPU
module, base unit, extension cable, or
module (I/O module or intelligent
function module) connected. Please
contact your local Mitsubishi Electric
sales office or representative.
• Take measures to reduce noise.
• Reset the bus. If the same error code
is displayed again, the possible cause
is a hardware failure of the CPU
module or base unit. Please contact
your local Mitsubishi Electric sales
office or representative.
• Take measures to reduce noise.
• Reset the bus. If the same error code
is displayed again, the possible cause
is a hardware failure of the CPU
module or base unit. Please contact
your local Mitsubishi Electric sales
office or representative.
• Take measures to reduce noise.
• Turn the power of the CPU module
OFF and ON or reset the hardware. If
the same error code is displayed
again, the possible cause is a
hardware failure of the CPU module.
Please contact your local Mitsubishi
Electric sales office or representative.
33.1 Error Codes for Self-diagnostics
Stop/ Diagnostic
continue timing
Stop At interrupt
occurrence
Stop At interrupt
occurrence
Stop/continue Always
Stop Power-on,
hardware
reset, bus
reset
At fixed cycle
processing
execution
Stop/continue Always
Stop Power-on,
hardware
reset, bus
reset
At fixed cycle
processing
execution
Stop Always
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