PA-U8D-C-FA User Manual
ACT-PAU8D-USR-DOC-V2.0, 05/20/2022
Page 13 of 33
STATUS SECTION
1)
FWD_POW/REFL-POW/IN-POW are respectively the forward power, reflected power, and input
power meters of the amplifier. VSWR value is calculated accordingly based on these power meters.
If any of these meters has exceeded the pre-set thresholds which can be set in the SYSTEM
SETTINGS Tap->ALARM-PARA section, then it triggers an alarm accordingly, and the amplifier
will enter into the auto-protection mode and run at reduced power levels, or even no TX output.
2)
ATT stands for the internal attenuator setting. It is normal to see ATT decrease from its maximum
value (127) to its pre-set value (set in System Set Tap) slowly during a reboot. ATT is also used in
AGC mode when the AGC target value is away from the free-run level.
Important
: If there is an alarm that triggers the amplifier to go into the auto-protection mode,
then the ATT’s value will increase and the amplifier will run at reduced power to protect it from
potential damage. This kind of power drop is designed for protection purposes. So, if you notice
the output power drops, please first check if there is an alarm in the system and if the current ATT
value (in the Status Tap) matches what is set in the SYSTEM SETTINGS Tap. Don’t increase the
input of the PA (or the output of the exciter) without checking the alarm(s) and ATT value/setting
first. Otherwise, once the alarm has been cleared, you may have a much higher input level than
needed, and it may damage the amplifier and may void the warranty.
3)
AMP-TEMP is the internal temperature readings measured by an onboard temperature sensor. If
this value is higher than the pre-set threshold (TEMP-MAX in the SYSTEM SETTINGS
tap->ALARM-PARA section), then it triggers an AMP-TEMP alarm, and the amplifier will enter
into the auto-protection mode and run at reduced power levels, or even no TX output.
4)
50V-VOL is the 50V voltage reading of the power supply unit(s).
5)
50V-CUR1~50V-CUR9 are the main transistor current readings. If any of these values are higher
than the pre-set threshold (50VCUR-MAX in the SYSTEM SETTINGS Tap->ALARM-PARA
section), then it triggers a 50V-CUR alarm, and the amplifier will enter into the auto-protection
mode and run at reduced power levels, or even no TX output.
6)
CUR-TOTAL is the total current reading of all device currents added together. The 50V-POW is
the DC power consumption by multiplying the 50V-VOL with the CUR-TOTAL. DC-EFF is the
DC efficiency calculated by dividing the FWD-POW by the 50V-POW.
7)
FAN-SPEED are all available fans’ speeds (RPM).
8)
FREQ is the current channel frequency read from the exciter. If the internal communication
between the exciter and the PA is lost (via RS485), or the PA is not connected with an Anywave
exciter, then this parameter may not reflect the actual channel information, and a FREQ-RECV
alarm will show up.
9)
AUTO-DGV is for manufacturer use only. Please keep it untouched.
10)
EXCITER shows which exciter is currently selected and on air. Each PA can connect with up to
two exciters (Exciter A and/or Exciter B) as needed.
11)
HISTORY-VMAX: shows you the maximum 50V logged in the history.
ALARM INFORMATION SECTION
This section is to show the overall status of the PA operation. It lists the status of the critical
parameters, including FWD-POWER, REF-POWER, IN-POWER, VSWR, current, temperature,
