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Troubleshooting With The Status Display Panel; Table 6-1 Inverter Conditions Indicated By The Leds On The Sdp - Siemens Micromaster 420 Operating Instruction

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International English
!
Warnings
Repairs on equipment may only be carried out by Siemens Service, by repair
centers authorized by Siemens or by qualified personnel who are thoroughly
acquainted with all the warnings and operating procedures contained in this
manual.
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 with the Status Display Panel

Table 6-1 explains the meaning of the various states of the LEDs on the Status Display
Panel (SDP).
Table 6-1
Green
Flashing – R1
Flashing – R1
Flashing – R1
Flashing – R1
Flashing – R1
Flashing – R2
Flashing – R2
Flashing – R2
R1 – On time 900 milliseconds
92
Inverter conditions indicated by the LEDs on the SDP
LEDs
Yellow
OFF
OFF
OFF
ON
ON
OFF
ON
ON
OFF
Flashing – R1
OFF
ON
ON
Flashing – R1
Flashing – R1
Flashing – R1
Flashing – R2
Flashing – R1
Flashing – R2
Flashing – R2
6. TROUBLESHOOTING
Priority
Inverter Status Definitions
Display
1
Mains not present
8
Inverter fault – other than those
listed below
13
Inverter running
14
Ready to run – standby
4
Fault – Overcurrent
5
Fault – Overvoltage
7
Fault – Motor Overtemperature
8
Fault – Inverter Overtemperature
9
Warning Current Limit (both LEDs
flashing at the same time)
11
Other warning (both LEDs
alternate flashing)
6/10
Undervoltage trip/Undervoltage
warning
12
Inverter is not in ready state –
display >0
2
ROM failure (both LEDs flashing at
the same time)
3
RAM failure (both LEDs alternate
flashing)
R2 – On time 300 milliseconds
MICROMASTER 420 Operating Instructions
6SE6400-5AA00-0BP0

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