Information subject to change
96-8005549_3-18-21
8508 OPERATOR’S MANUAL – SECTION 5
18
ON = DIP Switch UP OFF = DIP Switch DOWN
SW#18
SW#19
SW#20
Synthetic
Impedance
ON
ON
ON
0.875Ω
ON
ON
OFF
0.750Ω
ON
OFF
ON
0.625Ω
ON
OFF
OFF
0.500Ω
OFF
ON
ON
0.375Ω
OFF
ON
OFF
0.250Ω
OFF
OFF
ON
0.125Ω
OFF
OFF
OFF
0.00Ω
Figure 5.3 – Synthetic Impedance Switch
Configurations
ON = DIP Switch UP OFF = DIP Switch DOWN
SW#21 SW#22 SW#23 SW#24
Current
Limit
ON
ON
ON
ON
160A
ON
ON
ON
OFF
150A
ON
ON
OFF
ON
140A
ON
ON
OFF
OFF
130A
ON
OFF
ON
ON
120A
ON
OFF
ON
OFF
110A
ON
OFF
OFF
ON
100A
ON
OFF
OFF
OFF
90A
OFF
ON
ON
ON
80A
OFF
ON
ON
OFF
70A
OFF
ON
OFF
ON
60A
OFF
ON
OFF
OFF
50A
OFF
OFF
ON
ON
40A
OFF
OFF
ON
OFF
30A
OFF
OFF
OFF
ON
20A
OFF
OFF
OFF
OFF
10A
All switches are additive and provide the following
values toward the total Gain amount.
SW#9 = 20.00
SW#13 = 1.25
SW#10 = 10.00
SW#14 = 0.63
SW#11 = 5.00
SW#15 = 0.31
SW#12 = 2.50
SW#16 = 0.16
Refer to the chart in
Appendix A
to quickly deter-
mine the switch settings for your desired amplifier
gain.
SW#17: Electronic Gain Matching
IMPORTANT:
Do not change the Electronic
Gain Matching switch on any 8500 series
amplifier Master or Follower module unless
instructed by AE Techron Technical Support.
Product failure could occur.
The Electronic Gain Matching function serves to
minimize circulating currents when multiple ampli-
fier modules are used in a parallel configuration.
When enabled, the Electronic Gain Matching func-
tion progressively increases impedance from the
voltage gain as current increases, up to a mami-
mum 0.20-ohm increase. This allows the amplifier
modules to operate in parallel without the use of
separate ballast resistors.
When the Electronic Gain Matching DIP switch
is in the DOWN position, the function is disabled.
When this switch is in the UP position (default),
Gain Matching is enabled.
SW#18 - SW#20: Synthetic Impedance
These three switches allow the addition of a
synthetic impedance on the output of the ampli-
fier. Synthetic Impedance can be used to increase
stability when driving capacitive loads. It can also
be used in testing where the effect of long power
lines needs to be simulated (such as for power util-
ity applications).
When all four switches are in the DOWN posi-
tion (default), Synthetic Impedance is disabled.
The synthetic impedance can be added in incre-
ments of 0.125 ohms by setting one or more of the
synthetic impedance switches in the UP position.
Refer to
Figure 5.3
for all available synthetic im
-
pedance switch settings.
SW#21 - #24: Current Limit
These four switches control the current-limit set-
tings for the amplifier. When all four switches are
in the UP position (default), the amplifier’s output
current is limited to 160A. The current-limit can be
lowered in 10A increments by setting one or more
of the current limit switches in the DOWN position.
Refer to
Figure 5.4
for all available current-limit
switch settings.
NOTE:
If all four current-limit DIP switches are set
in the DOWN position, the amplifier’s output cur-
rent will be limited to 10A.
Figure 5.4 – Current Limit Switch Configurations
Summary of Contents for 8500 Series
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