Mitsubishi Q12PRHCPU - 8.1.13 When SP. UNIT LAY ERROR Occurs

8
TROUBLESHOOTING
8.1 Troubleshooting Flow
8.1.13 When "SP. UNIT LAY ERROR" Occurs
8 - 26
1
OVERVIEW
2
SYSTEM CONFIGURATION
3
TRACKING CABLE
4
PROCEDURE FOR STARTING UP A REDUNDANT SYSTEM
5
REDUNDANT SYSTEM FUNCTIONS
6
REDUNDANT SYSTEM NETWORKS
7
PROGRAMMING CAUTIONS
8
TROUBLESHOOTING
8.1.13 When "SP. UNIT LAY ERROR" Occurs
The following shows the flowchart for when "SP. UNIT LAY ERROR" occurs during
operation of the redundant system.
Diagram 8.14 Flowchart for when "SP. UNIT LAY ERROR" Occurs
Reduce the number of mounted CC-
Link IE Controller Network modules
to two or one.
Reduce the number of mounted
MELSECNET/H modules to four or less.
Are three or more CC-Link
IE Controller Network
modules mounted?
Reduce the number of mounted CC-Link
IE Controller Network modules and
MELSECNET/H modules to four or less
in total.
Are five or more CC-Link IE
Controller Network modules and
MELSECNET/H modules
mounted in total?
Are five or more
MELSECNET/H modules
mounted?
Reduce the number of mounted Ethernet
modules to four or less.
Are five or more Ethernet
modules mounted?
Rewrite the network parameters.
Are the parameter contents
normal?
An error message [SP.UNIT
LAY ERROR] was detected.
YES
YES
YES
YES
NO
NO
NO
NO
NO
YES
A hardware failure occurs to the CPU
module. Consult your local Mitsubishi
representative, explaining a detailed
description of the problem.