Hitachi E-Compact Medium Power Series Operation Manual page 43

Uhf digital tv transmitters
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ALARM
PA__ Failure
PA__ Comm Failure
Driver Low Gain
Driver Low Voltage
Driver Critical High Current
Driver High Current
Driver Low Current
Driver High Temperature
Driver High Output Power
Driver Comm Failure
Pre-Driver Low Current
Pre-Driver High Current
PSU __ High AC Line Voltage
PSU __ Critical High AC Line
Voltage
ALARM DESCRIPTION
VGS (Voltage Gate Source) of the indicated PA is less than
2/3 of the programmed VGS.
Default system action: Shutdown.
No communication with the indicated PA.
Gain in the driver is less than 30dB.
Default system action: Notification
Voltage in the driver is less than 5.0V of programmed.
Default system action: Notification
Consumption current in the driver is greater than 4.9A.
Default system action: Shutdown.
Consumption current in the driver is between 4.5A and 4.9A.
Default system action: Notification
Consumption current in the driver is less than 0.4A.
Default system action: Notification
Temperature Driver is greater than 75°C (167ºF).
Default system action: Notification
Output Power Driver is greater than 46dBm.
Default system action: Notification
No communication with the Driver.
Consumption current in the pre-driver is less than 0.1A.
Default system action: Notification
Consumption current in the pre-driver is greater than 0.35A.
Default system action: Notification
AC Voltage at PSU is greater than 240Vac
Default system action: Notification
AC Voltage at PSU is greater than 250Vac
Default system action: Shutdown
E-Compact Medium Power
43 | 106

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