Dressler 13150 400 V, User Manual

Page: 48 / 176

4-10 Communication Interfaces HPG 13150 400 V (A)
Dressler
®
HF-Technik GmbH
Prerelease version
7 20 DC BIAS INPUT Analog
input
This input signal is used for
DC bias regulation, where the
set point is given by pin 5
(scaling must be the same).
The signal closes the control
loop around external
components in the RF path.
The default range is 0 V to
10 V, but you can change this
range (see
“Analog Inputs” on
page 4-13 ).
Default setting: 0 V to 10 V =
0 V to 4000 V.
Typically, matching networks
provide a DC bias voltage
monitor signal. When this
scaled representation of the
DC bias voltage is used for
DC bias regulation (see pin
6), the scaling must be the
same as for the set point (see
pin 5). Dressler Variomatch
matching networks provide a
DC bias voltage monitor
signal for regulation through
the
Matching Interface .
For a wiring diagram, see
Figure 4-8 on page 4-17 .
Table 4-2. 25-pin User Port pin descriptions (Continued)
Pin
Number
Return
Pin
Name Signal
Type
Description