Omron NX-PA Series User Manual page 77

The following table describes these indicators.
Indicator Color
RUN Green
ERROR Red
BUSY Yellow
SD PWR Green
SD BUSY Yellow
*1. Refer to the NJ/NX-series CPU Unit Software User's Manual (Cat. No. W501) for details on backing up data.
NX-series CPU Unit Hardware User's Manual (W535)
Status
Lit. The CPU Unit is in normal operation in RUN mode. (The user
program is in execution.)
Flashing The CPU Unit is starting (entering RUN mode or PROGRAM
at 2-s mode at startup).
intervals,
then flashing
at 0.5-s
intervals.
Flashing System initialization error occurs.
at 2-s
intervals
continues for
30 seconds or
longer.
Not lit. Operation is stopped in PROGRAM mode, when a CPU Unit
reset is in progress, or when any of the following errors occurs.
• Controller error in the major fault level
• CPU error (WDT error)
Lit. Self-diagnosis found one of the following errors.
• Controller error in the major fault level
• CPU error
Flashing Self-diagnosis found one of the following errors.
at 1-s
• Controller error in the partial fault level (an error in which all
intervals.
control of a Function Module is disabled)
• Controller error in the minor fault level (an error in which partial
control of a Function Module is disabled)
CPU Unit operation will continue for either of these errors.
Operation will stop for the Function Module in which a Controller
error in the partial fault level occurred.
Operation will continue for the Function Module in which a Con-
troller error in the minor fault level occurred.
Not lit. The CPU Unit is in normal operation, a CPU reset is in progress,
or monitored information occurred. (CPU Unit operation will con-
tinue.)
Flashing Built-in non-volatile memory access in progress.
Not lit. Other than the above.
Lit. Power is being supplied to the SD Memory Card and the SD
Memory Card can be used.
Flashing
A backup, restore or verification operation is in progress.
Not lit. The power supply for the SD Memory Card is stopped, an SD
Memory Card is not mounted, or the file format of the mounted
SD Memory Card is not supported.
Flashing SD Memory Card access in progress.
Not lit. SD Memory Card access not in progress.
3 Configuration Units
Meaning
3
*1
3 - 5