Fault diagnosis and correction
Safety
WARNING!
Danger of electric shock.
This can result in severe personal injury and damage to property.
▶
Before carrying out maintenance work on the device, carry out the following meas-
ures
▶
Set the power switch to - O -
▶
Unplug the device from grid power
▶
Attach a clear warning sign advising others not to switch the power source back on
▶
Use a suitable measuring instrument to ensure that electrically charged components
(e.g., capacitors) are discharged
WARNING!
Danger due to insufficient ground conductor connection!
This can result in severe personal injury and damage to property.
▶
The housing screws provide an adequate ground conductor connection for ground-
ing the housing and should not be replaced under any circumstances by other
screws that do not provide a reliable ground conductor connection.
Displayed service
codes
If an error message appears on the screen that is listed here, the error can only be cor-
rected by service personnel. Please note the displayed error message, as well as the
serial number and configuration of the power source, and contact the After-Sales Service
team with a detailed description of the error.
Error message from PC board UTI1A:
Err 102
Cause: Temperature sensor short circuit
Err 103
Cause: Temperature sensor interruption
Err 107
Cause: RAM access error
Err 109
Cause: Sec. overvoltage error
Err 110
Cause: Power source shutdown
Err 112
Cause: ADC offset error
Err 113
Cause: ADC gain error
Err 116
Cause: Cooling unit error
Err 117
Cause: Primary overcurrent error
63
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