7 Displays and messages

Issue 10/06

7 Displays and messages

7.1LED status display

LEDs for indicating the drive state

OFF

ON

approx. 0.3 s, flashing approx. 1 s, twinkling

Mains not present

Ready to run

Inverter fault

other than the ones listed below

Inverter running

Fault overcurrent

Fault overvoltage

Fault motor overtemperature

Fault inverter temperature

Warning current limit

both LEDs twinkling same time

Other warnings

both LEDs twinkling alternatively

Undervoltage trip / undervoltage warning

Drive is not in ready state

ROM failure

both LEDs flashing same time

RAM failure

both LEDs flashing alternatively

76

MICROMASTER 440

Operating Instructions (Compact)

Page 76
Image 76
Siemens 440 operating instructions Displays and messages, LED status display