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4.
Save any operating state (for example, press
5.
Turn the power off and then back on.
A normal display free of error messages should appear. If not, the power supply requires service.
Runtime Error Messages
Under unusual operating conditions, the V0LT or AMPS display may show +OL or -OL. This indicates that the output
voltage or current is beyond the range of the meter readback circuit.
Table 3-4 shows other error messages that may appear at runtime.
EE WRITE ERR
SBUB FULL
SERIAL DOWN
STK OVERFLOW
UART FRAMING
UART OVERRUN
UART PARITY
38
Turn-On Checkout
Table 3-4. Runtime Errors
Display
EEPROM status time-out
Message too long for buffer
Failed communication with front panel
Front panel stack overflow
UART byte framing error
Overfilled UART receive buffer
UART byte parity error
Meaning
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