Issue 08/03
62 Quick Start Guide MICROMASTER 440
6SE6400-5GA00-0BP0
6 Troubleshooting
WARNING
• Repairs on equipment may only be carried out by Siemens Service & Repair
Centers – See page 67 for contact details.
• Any defective parts or components must be replaced using parts contained in the
relevant spare parts list.
• Disconnect the power supply before opening the equipment for access
6.1 Troubleshooting Using the Status Display Panel (SDP)
It is possible to do a limited amount of troubleshooting using the SDP, however for more
detailed troubleshooting you will need a BOP or AOP or Serial link to give you parameter
access.
The table below
explains the
meaning of the
various states of the
LEDs on the SDP.
Line voltage not present
Fault inverter temperature
Ready to run
Warning current limit -
both LEDs blinking same
time
Inverter fault - other than
the ones listed below
Other warnings - both
LEDs blinking
alternatively
Inverter running
Undervoltage trip /
undervoltage warning
Fault overcurrent
Drive is not in ready state
Fault overvoltage
ROM failure - Both LEDs
flashing same time
Fault motor
overtemperature
RAM failure - Both LEDs
flashing alternatively
LEDs for indicating the
drive state
Off
On
approx. 0,3 s, flashing
approx. 1 s, blinking
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