Lenze ETCxxxxx - Manual (Page 61)

Troubleshooting and fault elimination
Status display
6
6.1
l
61 EDSTCXX EN 2.0
When the control enters the operating mode after start−up, the following
pattern of flashing and indications applies.
LED Meaning
Watchdog Watchdog, must always illuminate when running.
Reserved Without function
ERROR Flashes after an exception (violation of the control program protection during
runtime, exceeding the permitted variable range, division by zero etc.).
LED 1 Flashes at the clock pulse of the coarse interpolator
LED 2 Flashes at the clock pulse of the interpreter
LED 3 Flashes at the clock pulse of the central control
LED 4 Flashes at the clock pulse of the fine interpolator
LED 5 Flashes with each RS232 interrupt or CAN interrupt
LED 6 Flashes at the clock pulse of the PLC cycle time
)
Note!
The "flashing" frequency can be so low with short programs, that
the LEDs appear dark.
Operation