12-55
12 Troubleshooting
NJ-series CPU Unit Software User’s Manual (W501)
12-2 Troubleshooting
12
12-2-5 Troubleshooting Errors That Are Not in the CPU Unit
12-2-5 Troubleshooting Errors That Are Not in the CPU Unit
Security Errors
No. Problem Correction
1 Forgot the Administrator password. You cannot access the Administrator’s password. Always
record the Administrator password so that you do not for-
get it.
2 Cannot release the operation lock with
the Sysmac Studio.
Log in with verification authority that is equal to or higher
than the verification rights when you connected online.
3 Operation was locked when verifying
operation authority on the Sysmac
Studio.
If the password for verification of operation authority is
entered incorrectly five time in row, operation is locked for
10 minutes. Wait until the operation lock is released.
4 An online connection was made with
the operation authority that is required
for operation, but operation authority
verification was requested for a spe-
cific operation.
Verification of operation authority is required every time
for the following functions to prevent hazards to equip-
ment and people.
• I/O monitoring (writing) by an Operator
• Operating mode change by a Maintainer
• Online editing by a Maintainer
5 Cannot release the operation lock with
the Sysmac Studio after the operator
left the Sysmac Studio unattended.
You can release the operation lock with an operation
authority that is equal to or higher than the operator. The
required operation authority will be that of an operator
(the operation authority that was verified when going
online with the Sysmac Studio).
6 Some of the user program data cannot
be read for certain operations.
• Monitoring
Variables
• Operation Commands
SET/RESET, forced refreshing,
online editing, data tracing, MC Test
Run, and setting the user program
execution ID in the CPU Unit
• Synchronizing, Uploading, Verifica-
tion, and Backup
POU algorithms
The source data was not downloaded along with the user
program. You will be able to read the data if you download
the user program normally.
7 Writing to the CPU Unit is not possible
for some operations.
• Names
CPU Unit name
• Operation Commands
Online editing, Clear All Memory,
event log clearing, and setting the
user program execution ID in the
CPU Unit
• Synchronizing and Downloading
User program, CPU/Expansion
Rack Configuration and Setup,
EtherCAT Settings, Controller
Setup, Axis Settings, Cam Table
Settings, Data Trace Settings, User-
defined Event Setup, restoring
The CPU Unit is write protected. Release the write pro-
tection.
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