Nautel XR12, Руководство по предварительной установке

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XR12 Transmitter Pre-installation Manual Control and monitoring
Page 6-2 Issue 0.17 2005-08-31
High DC current.
The B+ DC current has exceeded 83A.
High RF current.
The RF current at the input of the combiner/filter has exceeded the set threshold
for this alarm.
High VSWR shutback.
The reflected power has exceeded the set threshold for this alarm.
Total power limit.
The product of the B+ (DC) voltage and the DC current is greater than 22kVA.
This triggers an immediate cutback but does not trigger a shutback.
Auto Changeover.
The active exciter has failed, and the Auto Changeover function is enabled,
triggering a changeover. No further auto changeovers will take place until the alarm is cleared.
Mod Driver Fail A.
This fault is reported only if the exciter is on side A. If the exciter transfer
function is set to "auto" then the transmitter will change over to exciter B. If auto changeover is not
possible, or if the exciter transfer function is set to manual, then this fault will cause a shutback.
Mod Driver Fail B.
This fault is reported only if the exciter is on side B. If the exciter transfer
function is set to "auto" then the transmitter will change over to exciter A. If auto changeover is not
possible, or if the exciter transfer function is set to manual, then this fault will cause a shutback.
PDM Drive Fail.
The PDM drive has failed. If the exciter transfer function is set to "auto" then the
transmitter will change over to the other exciter. If auto changeover is not possible, or if the exciter
transfer function is set to manual, then this fault will cause a shutback.
RF Driver Fail.
There is a problem with the RF drive on the current exciter. If the exciter transfer
function is set to "auto" then the transmitter will change over to the other exciter. If auto changeover
is not possible, or if the exciter transfer function is set to manual, then this fault will cause a shutback.
Cutback Level (1-8).
If there are three shutbacks within five seconds, the transmitter enters a power
reduction mode called a cutback.
Ext. Interlock Open.
An external interlock has been triggered. (External interlocks are user-
installed and configurable. A triggered interlock may indicate a site safety issue.)
Ext. PDM Inhibit.
The external PDM Inhibit is wired to the remote board.
Int. Serial Fail.
There is no communication with the Remote Interface board. This alarm is
triggered if two seconds go by without acknowledgement from the Remote board of the control
board's request for information.