3.4.2
LED displays
Meaning of the RUN/STOP, ERROR and MAINT PLC-LEDs
RUN/STOP LED
ERROR LED
MAINT LED
Meaning
LED off
LED off
LED off
Supply voltage at the CPU not present or too low.
LED off
LED flashes red
LED off
An error has occurred.
LED lights up green
LED off
LED off
The CPU is in the RUN operating state.
LED lights up green
LED flashes red
LED off
Diagnostic event pending.
LED lights up green
LED off
LED lights up yellow
A plant maintenance request is pending.
The affected hardware must be validated/replaced
within a short interval.
Active force job
PROFIenergy pause
LED lights up green
LED off
LED flashes yellow
A plant maintenance requirement is pending.
The affected hardware must be validated/replaced
within a foreseeable interval.
Configuration faulty
LED lights up yellow
LED off
LED flashes yellow
Firmware update completed successfully.
LED lights up yellow
LED off
LED off
CPU is in STOP operating state.
LED lights up yellow
LED flashes red
LED flashes yellow
The program on the SIMATIC Memory Card cau‐
ses a error.
CPU defective
LED flashes yellow
LED off
LED off
CPU performs internal activities during STOP, e.g.
ramp-up after STOP.
Downloading the user program from the SIMATIC
Memory Card
LED flashes
yellow/green
LED off
LED off
Startup (transition from RUN → STOP)
LED flashes
yellow/green
LED flashes red
LED flashes yellow
Startup (booting the CPU)
Test the LEDs during startup, insert a module.
LED flash test
Description
3.4 Operator control and display elements
NCU 1760
Equipment Manual, 02/2020, A5E45627861B AB
29
Содержание SINUMERIK ONE NCU 1760
Страница 8: ...Table of contents NCU 1760 8 Equipment Manual 02 2020 A5E45627861B AB ...
Страница 36: ...Description 3 5 Dual fan module NCU 1760 36 Equipment Manual 02 2020 A5E45627861B AB ...
Страница 44: ...Dimension drawings 5 1 NCU 1760 dimension drawing NCU 1760 44 Equipment Manual 02 2020 A5E45627861B AB ...
Страница 48: ...Installation 6 4 Mounting the NCU without spacers NCU 1760 48 Equipment Manual 02 2020 A5E45627861B AB ...
Страница 150: ...Connectable components 11 3 PP 72 48D PN 2 2A PN NCU 1760 150 Equipment Manual 02 2020 A5E45627861B AB ...
Страница 154: ...Spare parts accessories 12 2 SD card NCU 1760 154 Equipment Manual 02 2020 A5E45627861B AB ...
Страница 156: ...Safety symbols NCU 1760 156 Equipment Manual 02 2020 A5E45627861B AB ...
Страница 160: ...Appendix A 2 Documentation overview SINUMERIK ONE NCU 1760 160 Equipment Manual 02 2020 A5E45627861B AB ...