Hitachi EC702MP-BB3, Operation Manual

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E-Compact MP-BB3 Series
> Main Menu > System Alarms/Log > Drawers Alarms > Clear Past Alarm:
Reset the drawer alarm list.
Select “On” to reset the Past Alarms list.
Power Amplifiers Drawers (HPA) Alarms List
DRAWER ALARM ALARM DESCRIPTION THRESHOLD
SYSTEM
ACTION
PA High Current Indicated PA Current is greater than threshold 9 A Notification
PA Critical High Current
Indicated PA Current is greater than threshold
10 A Shutdown
PA Unbalanced Current
Indicated PA Current is higher or lower than the
others
2.5 A Notification
PA Low Current Indicated PA Current is lower than threshold. 0.2 A Reduces 3dB
PA High Temperature Indicated PA Temperature is greater than threshold. 80 °C (176 °F) Notification
PA Critical High Temp Indicated PA Temperature is greater than threshold 85 °C (185 °F) Reduces 3dB
PA Failure
VGS (Voltage Gate Source) of the indicated PA is less
than 2/3 of the programmed VGS.
2/3 Shutdown
PSU High AC Voltage PSU AC Voltage is greater than threshold 265 VAC Notification
PSU Critical High AC Line
Voltage
PSU AC Voltage is greater than threshold 270 VAC Shutdown
PSU Low AC Voltage PSU AC Voltage is lower than threshold 100 VAC Notification
PSU Critical Low AC Voltage PSU AC Voltage is lower than threshold 90 VAC Shutdown
PSU High Current PSU Current is greater than threshold
31A @PA702MP
32A @PA704MP
Notification
PSU Critical PSU High Current PSU Current is greater than threshold 33 A Shutdown
PSU High Temperature PSU temperature is greater than Threshold 65 ºC (149 °F) Notification
PSU Critical High Temperature PSU temperature is greater than threshold 68 °C (154.4 °F) Shutdown
PSU High Voltage PSU voltage exceeds 2V of programmed PSU voltage 52 V Shutdown
PSU Low Voltage
PSU voltage is lower than 3V of programmed PSU
voltage
47 V Shutdown
Driver High Current Driver Current is greater than threshold 4.0 A Notification
Driver Critical High Current
Driver Current is greater than threshold
4.5 A Shutdown
Driver Low Current Driver Current is lower than threshold. 0.4 A Notification
Pre-Driver High Current Pre-Driver Current is greater than threshold 0.35 A Notification
Pre-Driver Low Current Pre-Driver Current is lower than threshold. 0.1 A Notification
Driver High Voltage Driver Voltage is greater than threshold 52 V Notification
Driver Low Voltage
Driver voltage is lower than 5v of programmed PSU
voltage
5 V Notification
Driver Low Gain Driver Gain is lower than threshold. 30 dB Notification