4-14
Communication Interfaces
HPG 13150 400 V (A)
Dressler
®
HF-Technik GmbH
Prerelease version
or the
PROFIBUS
port (see command 30 in
through the front panel menu commands (see
Configuration Settings” on page 5-33
).
Note:
Using lower input voltages decreases resolution.
Analog Outputs
By default, the
User port
analog output signals (pins 2 and 3) are scaled 0 V
to 10 V. These signals are scalable from 0 V to 2V up to 0 V to 10 V in
increments of 0.5 V. You can set the scaling through the
RS-232
port or the
PROFIBUS
port (see command 30 in
) or through the
front panel menu commands (see
“Changing the Device Configuration
Note:
Using lower output voltages decreases resolution.
These signals are driven by operational amplifiers capable of driving high-
capacitance loads such as those expected in shielded interface applications.
The user’s receiver must present a 10 k
Ω
(or higher) impedance to these
signals. The readback signals represent the forward and reflected power as
measured at the output of the HPG generator.
Digital Inputs
Pins 4, 6, 8, and 10 are opto-coupled. The user’s signal drives the LED in the
opto-coupler through a 4.7 k
Ω
resistor. A signal level of 4 V to 30 V applied to
the input pin activates the signal.
Digital Outputs
The status signals provided by the generator (pins 14, 22, and 24) are opto-
coupled with NPN transistor outputs. The collector and emitter of each
transistor are provided to the
User
interface. Each transistor can provide a
maximum of 8 mA of collector current and may be operated with a collector-to-
emitter voltage of up to 30 V.
Pulse Input
The pulse input (pin 25) is a high-speed opto-coupled input. The user’s signal
drives the LED in the opto-coupler through a 1.2 k
Ω
resistor. A signal level of
3 V to 12 V applied to the input pin activates the signal.
Interlock
The interlock signal (pins 10 and 23) enables the RF power generation. Pin 10
is tied to the generator’s +15 V supply. Connecting pin 10 to pin 23 closes the
loop, enabling RF power.
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Страница 24: ...1 10 Safety and Product Compliance Guidelines HPG 13150 400 V A Dressler HF Technik GmbH Prerelease version ...
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