RUN/STOP LED
ERROR LED
MAINT LED
Meaning
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 causes 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
4.4 Operator control and display elements
NCU 1740
Equipment Manual, 10/2021, A5E51087503B AA
35
Содержание SINUMERIK ONE NCU 1740
Страница 48: ...Dimension drawings 6 1 NCU 1740 dimension drawing NCU 1740 48 Equipment Manual 10 2021 A5E51087503B AA ...
Страница 52: ...Installation 7 4 Mounting the NCU without spacers NCU 1740 52 Equipment Manual 10 2021 A5E51087503B AA ...
Страница 96: ...Technical data 11 3 Recycling and disposal NCU 1740 96 Equipment Manual 10 2021 A5E51087503B AA ...
Страница 156: ...Connectable components 12 3 PP 72 48D PN 2 2A PN NCU 1740 156 Equipment Manual 10 2021 A5E51087503B AA ...
Страница 160: ...Safety symbols NCU 1740 160 Equipment Manual 10 2021 A5E51087503B AA ...