User's Guide

Program Operation 27
Affinity Control User’s Guide
Software v2.50
In this step, the Fast Reflected
Shutdown Threshold parameter is
adjusted until the system detects the
15% reverse power threshold. This
will cause the system to reduce
power by approximately 6dB. It may
require several tries to get the
threshold set accurately (within 20
units of true threshold). As described
in the instructions, increase the Fast
Reflected Shutdown Threshold
slightly and use the Reset button to
clear the trip fault. Repeat as
necessary to get the trip set within
20 units.
Figure 39 Full Calibration-Fast Reflected Shutdown
Calibration
This step instructs the operator to
adjust the reflected power sample
level, while still in the –6dB power
reduction mode, to 25% reverse
power. This will be used to calibrate
the Fast Reflected Power Percent
Limit threshold for full system power
shutdown.
Figure 40 Full Calibration-Reflected Power Limit Setup