Operating Basics
2-4 AFG3000 Series Arbitrary/Function Generators Service Manual
Floating Ground
Since the common (input and output channel common) of the arbitrary/function
generator is electrically isolated from the chassis ground (the instrument chassis
and ground line of the AC connector), you can make a floating connection between
the instrument and other equipment.
All the signal output connectors are connected to the common ground, and the
remote interface connector is connected to the chassis ground.
Figure 2-4: Grounding equivalent circuit
CAUTION. When you make a floating connection, review the following
precautions:
The maximum rated voltage between the chassis ground and common ground is
42 V
p-p
(DC + peak AC). When the potential voltage between the chassis ground
and common ground goes over 42 V
p-p
, the internal protective circuit will be
activated to protect the circuits. However, higher voltage may cause the internal
circuits in the instrument to be damaged.
When a potential voltage exists between the chassis ground and common ground, a
short circuit from output to ground causes the instrument internal fuse to open and
the output is stopped. If the fuse opens, you need to contact your local Tektronix
Service Support.
When a potential voltage exists between the common ground and chassis ground,
short-circuiting between them may lead to excessive current flow and the internal
or external circuits may be damaged.
Chassis ground
Common ground
To Next Page
Loading...
Need help?
General
