Operating instructions

Installation
32 Feed/Feed-Back Units BUC 624, 625
5.96024.06a Baumüller Nürnberg GmbH
5.5.1 LEDs
Only for internal use, not primarily for the users information we have stated the meaning of the LEDs in
the table below. When looking straight at the LED Display window, the LEDs mean (top to bottom):
The LED display shown is situated on the front side of the appliance
MU+ Transistor overcurrent Phase L1 up
MU- Transistor overcurrent Phase L1 down
MV+ Transistor overcurrent Phase L2 up
MV- Transistor overcurrent Phase L2 down
MW+ Transistor overcurrent Phase L3 up
MW- Transistor overcurrent Phase L3 down
Trans. Transistor composite error
FAG Error 100 kHz auxilliary supply
IGrd Earth current
Imax Overcurrent mains input (I-Phase > 650 A)
Uzk> DC link voltage > 840 V or error Uzk-measurement
Temp> Heatsink temperature for 10sec > 95 °C
Mains off Network failure message (phase failure monitoring)
Charge DC link precharge active
LED colour meaning
1 yellow WARNING; error pre-warning
2 green READY; internal ready for use
3 green READY; external ready for use
4 red ERROR; error