GE Industrial Solutions AF-600 FP High Power (460V_575V 150HP and above) - Manual (Page 14)

2 Operator Interface and Frequency Converter Control
2.1 Introduction
Frequency converters are designed with self-diagnostic circuitry to isolate fault conditions and activate display messages which greatly simplify troubleshooting
and service. The operating status of the frequency converter is displayed in real-time. Virtually every command given to the frequency converter results in some
indication on the Keypad display. Fault logs are maintained within the frequency converter for fault history.
The frequency converter monitors supply and output voltages along with the operational condition of the motor and load. When the frequency converter issues
a warning or alarm, it cannot be assumed that the fault lies within the frequency converter itself. In fact, for most service calls, the fault condition will be found
outside of the frequency converter. Most of the warnings and alarms that the frequency converter displays are generated by response to faults outside of the
frequency converter. This service manual provides techniques and test procedures to help isolate a fault condition whether in the frequency converter or elsewhere.
Familiarity with the information provided on the display is important. Additional diagnostic data can be accessed easily through the Keypad.
2.2 User Interface
2.2.1 How to Operate the Keypad
The Keypad is divided into four functional groups:
1. Graphical display with status lines.
2. Menu keys and indicator lights (LEDs) - selecting mode, changing parameters and switching between display functions.
3. Navigation keys and indicator lights (LEDs).
4. Operation keys and indicator lights (LEDs).
Graphical display:
The LCD display is back lit with a total of 6 alpha-numeric lines. All data is displayed on the Keypad which can show up to five operating variables whilst in [Status]
mode.
AF-650 GP and AF-600 FP High Power Service Manual
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