AE Techron 7800 Series Operation Manual page 9

7800 SERIES OPERATION – SECTION 2
NOTE: Alternately, the COMMON terminal
may be used when operating in Controlled-
Voltage mode; however, the integrated
current monitor will not function if the COM-
MON terminal is used, since it depends on
feedback from the Sampled Common ter-
minal. For operation in Controlled-Current,
mode, the SAMPLED COMMON terminal
must be used.
3. Locate the four-position terminal barrier block
on the back panel of the last Follower amplifier
module (see Figure 2.6).Connect the load's
positive terminal to the OUTPUT terminal.
4. Optionally, the "CHASSIS GROUND" terminal
can be connected to an external ground point
such as the rack chassis.
Output Connections for Models 7810-50-200,
7810-100-100, 7815-50-300, 7815-100-150, 7820-
50-400, 7820-100-200, and 7820-200-100.
Connection to the output of the amplifier is to a
four-position terminal barrier block labeled OUT-
PUTS located inside the cabinet on the back panel
of the Master amplifier module (upper-most ampli-
fier module in the cabinet). See Figure 2.7.
Figure 2.7 – Location of the system output connec-
tors for models 7810-50-200, 7810-100-100, 7815-
50-300, 7815-100-150, 7820-50-400, 7820-100-200
and 7820-200-100
96-8007105_07-14-23
NOTE: The 7800 series amplifier comes with a
factory-installed 2.7-ohm, 2W, 5%, metal-oxide re-
sistor connecting the terminals marked "SAMPLED
COMMON" and "CHASSIS GROUND" on each
amplifier module back panel (see Figure 2.8).
These resistors should NOT be removed. WARN-
ING: Removing any of these resistors can cause
dangerous output and/or damage to the load.
Figure 2.8 – Close-up of the Output Terminal Resistor
The four-position terminal barrier block accepts up
to #4 AWG wire. Always use the appropriate wire
size and insulation for the maximum current and
voltage expected at the output. Never connect the
output of the amplifier to any other model amplifier,
power supply, signal source, or other inappropriate
load; fire can result.
Complete the following steps to connect the load
to the 7800 series system output connectors.
1. Route your output cable through the grommet
in the panel located at the top of the cabinet
back. See Figure 2.9. Make sure the cable
is long enough to reach the back panel of the
Master amplifier module.
Figure 2.9 – Grommet for routing input and output
Information subject to change
wiring into the system case
9