NAiS FP Series User Manual

FPΣ 12.1 Self-Diagnostic Function
12 - 3
12.1 Self-Diagnostic Function
This section explains about the self-diagnostic function of FPΣ.
12.1.1 LED Display for Status Condition
Status indicator LEDs on control unit
LED status Description Operation status
RUN PROG. ERROR/
ALARM
Normal
condition
Light (on) Off Off Normal operation Operation
condition
Off Light (on) Off PROG. mode Stop
Flashes Flashes Off Forcing on/off in Run
mode
Operation
Abnormal
condition
Off Off Flashes When a self-diagnostic
error occurs
Operation
Off Light (on) Flashes When a self-diagnostic
error occurs
Stop
Varies Varies Light (on) System watchdog timer
has been activated
Stop
The control unit has a self-diagnostic function which
identifies errors and stops operation if necessary.
Whenanerroroccurs, thestatus of the status indicator
LEDs on the control unit vary, as shown in the table
above.
Status
indicator
LED
Figure 228: FPΣ Status indicator LED

NAiS FP Series Specifications

General

Brand	NAiS
Model	FP Series
Category	Controller
Language	English