RFL 9785 - Table 9-9. Function of DIP Switches SW1 and SW2 on Power Amp Board

Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
Note: All jumper and potentiometer settings are made at the factory and should not need field
adjustment, except the gain potentiometer R83, and the threshold potentiometer R8.
For DIP Switch settings SW1 and SW2 see below. Set to ON to enable the DIP Switch.
The table below is effective May 2011.
Table 9-9. Function of DIP switches SW1 and SW2 on Power Amp Board
Phase Limit Setting:
The 50W Power Amplifier will shut down if a preset Phase Angle is exceeded.
The factory set threshold is 60 degrees. SW1-1 through SW1-8 can be set as
fol
l
ows: Note that SW1-2, SW1-4, SW1-5 and SW1-6 are not used.
DIP Switch Phase Angle in Degrees
RFL 9785 RFL Electronics Inc.
SW
1-1 30
SW1
SW
1-3 45
60 Default setting
SW1-7
SW1-8 90
Phase Detector Set Point:
These DIP switches set the voltage threshold for the Phase Limit Setting. The
Phase lim
it circuit will not operate if the voltage falls below the preset. SW2-1
through SW2-4 can be set as follows:
DIP Switch Setting
SW2-1 Not used
SW2-1 thru SW2-4
SW
2-2 40V
30-35V Default
SW
2-3
SW2-4 20-25V
Overvoltage Detector Set Point:
The 50W Power Amplifier will shut down if the output voltage exceeds the
preset t
hreshold. SW2-5 through SW2-8 can be set as follows:
DIP Switch Setting
SW2-5 90V
SW2-5 thru SW2-8
SW
2-6 85V
70V Default
SW2-7
SW2-8 60V
Note that the Phase Detector circuit will also shut down the Power Amplifier if the output voltage is
above the set threshold and the output current is very low (well below 200ma).
May 16, 2011 9-27 (973) 334-3100