Information subject to change
97-7224006_3-31-15
7224 OPERATOR’S MANUAL – SECTION 4
18
4
Advanced Configuration
The 7224 amplifier was designed to offer excep
-
tional versatility in operation. You can choose from
a range of field-configurable options, including:
•
Operate as a stand-alone amplifier or as part of
a multiple-amplifier system.
•
Operate with variable gain control or at a fixed
gain setting of 20.
• Select Controlled-Current or Controlled-Voltage
modes of operation.
• Trigger Standby mode when specified fault
conditions occur during operation.
• Select the Stop mode state at power-up, or go
immediately to the Run mode state at power-up.
• Configure for use in high voltage applications,
high current applications, or for applications
requiring mid-level amounts of both voltage
and current.
Your 7224 amplifier has been pre-configured to
your specifications before shipping from the fac
-
tory. These initial settings are detailed on your
7224 Proof of Performance sheet and on a label
located on the side of the amplifier.
If you need to make changes to your amplifier’s
configuration, please follow the instructions con
-
tained in this chapter.
4.1
Configuration Access Panel
The 7224 amplifier contains an Access Panel built
into the top cover. Most configuration settings
can be made through this Access Panel. For your
convenience, a #2 Phillips screwdriver is provided
in your Toolkit for use in this procedure.
IMPORTANT: Before removing the Access
Panel, make sure the amplifier is turned off
for at least 3-5 minutes and the AC mains are
disconnected.
1. Locate the Access Panel as shown in
Figure
4.1.
Make sure that all 8 screws are acces
-
sible. Remove the unit from its rack, if neces-
sary.
2.
Using a #2 Phillips screwdriver (provided), re
-
move the 8 screws located on the top and side
of the amplifier.
3. Remove the Access Panel and set it aside.
Do not attempt to access the Main Board
or Power Supply Board while the ampli
-
fier is running. Turn the amplifier off and
disconnect the AC Mains before opening
the Access Panel.
WARNING
After turning the amplifier off, let the unit
sit for 2 minutes before removing the Ac-
cess Panel. This will allow the electrical
charge in the Power Supply capacitors
to discharge.
CAUTION
4.2
Configuration Settings Located on
the Main Board
The following custom settings can be made via
jumper settings on the Main Board, which is
located inside the Access Panel compartment, as
shown in
Figure 4.2.
•
Master/Slave setting for stand-alone or multi
-
ple-amplifier systems.
•
Variable or Fixed Gain setting.
•
Controlled Current/Controlled Voltage setting.
Figure 4.1 – Access Panel Screw Locations
