Mitsubishi Electric MELSEC iQ-R Series - Page 598

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36 ERROR CODES
36.4 List of Error Codes
3788H Redundant
system
configuration
error
• In a redundant system with redundant
extension base unit, the number of
slots on the main base unit differs
between system A and system B.
• In a redundant system with redundant
extension base unit, the module
mounting status of each slot or the
models of the modules used differ
between system A and system B.
• In a redundant system with redundant
extension base unit, the module
model name set in the system
parameters ("I/O Assignment
Setting") differs between system A
and system B.
(The error is detected in the control
system or the standby system.)
Stop • Use the main base units with the
same number of slots in both
systems.
• Match the module mounting status
of each slot and the models of the
modules used on the main base
unit between the systems, and
restart the CPU module.
• Set the system parameters ("I/O
Assignment Setting") so that the
parameters in both systems are
the same.
System
configuration
information
At power-on, at
RESET
3789H Redundant
system
configuration
error
• In a redundant system with redundant
extension base unit, the main base
units in both systems are not
connected to the same redundant
extension base unit. (The error is
detected in the control system or the
standby system.)
Stop • Connect both main base units to
the same redundant extension
base unit.
 At power-on, at
RESET, at
tracking cable
connection
378AH Redundant
system
configuration
error
• In a redundant system with redundant
extension base unit, an unsupported
extension base unit is connected to
the second or later extension levels.
(The error is detected in the control
system.)
Stop • Remove the unsupported
extension base unit. If all the
extension base units are
supported, the possible cause is a
hardware failure of the CPU
module or extension base unit.
Please consult your local
Mitsubishi representative.
System
configuration
information
At power-on, at
RESET
3790H Parameter error
(redundant
function)
• The redundant function module was
mounted next to the control CPU set
to process mode.
Stop • Set the CPU module to redundant
mode, and restart the system. Or,
remove the redundant function
module, and restart the system. If
the same error code is displayed
again, the possible cause is a
hardware failure of the CPU
module. Please consult your local
Mitsubishi representative.
System
configuration
information
At power-on, at
RESET, at
STOP  RUN
state
37A0H Parameter error
(redundant
function)
• The range set for tracking transfer in
the CPU parameters exceeds the
device range or the file register
capacity set in the CPU parameters.
Stop • Check the detailed information
(parameter information) of the
error by executing module
diagnostics using the engineering
tool, correct the parameter setting
corresponding to the displayed
number, and take the following
actions:
(1) Check and correct the tracking
transfer settings in the CPU
parameters so that they will be
within the device range or the file
register capacity.
(
2
) Check and correct the device
settings or the file register
capacity setting in the CPU
parameters.
Parameter
information
At power-on, at
RESET
Error
code
Error name Error details and cause Stop/
continue
Action Detailed
information
Diagnostic
timing