KEPCO BOP 5-20DL, Руководство оператора

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BOP 5-20DL 081915
3-9
3.4 REMOTE CONTROL OF VOLTAGE CHANNEL
Remote control of the voltage channel is accomplished by using an external configuration to
substitute for the internal control voltage produced by the front panel VOLTAGE CONTROL.
3.4.1 REMOTE VOLTAGE CONTROL USING RESISTANCE (POTENTIOMETER)
When configured as shown in Figure 3-6, Preamp “A” with the built-in feedback and input resis-
tors has a gain of one and the fixed gain of all BOP models is designed so that a d-c input signal
of zero to (±)10 volts will control the BOP output through its specified range. When the front
panel VOLTAGE CONTROL switch (4, Figure for 3/4 rack, Figure 2-1 for full rack) is set to OFF,
operation is similar to local control described in PAR. 3.3.1, except that an external potentiome-
ter is substituted for the front panel VOLTAGE control (3).
FIGURE 3-6. REMOTE POTENTIOMETER CONTROL OF D-C OUTPUT VOLTAGE
3043881
BOP VOLTAGE
CONTROL CHANNEL
PART OF REAR PROGRAMMING CONNECTOR
+
22
28
C
+
VOLTAGE
CONTROL
VOLTAGE
PROGRAMMING
INPUT
10V
OFF
10V
ON
10K
10K
11
9
C
7
POWER
STAGE
NOTES:
1. Set MODE Switch to VOLTAGE.
2. Remote Sensing shown. For local sensing disconnect
wires between S terminals and load, then restore local
sensing links.
COMMON
5
Eo ZERO
-
17
+
Eo COMP
AMP
ZERO
PREAMP
"A"
-
+
2.49K
DRIVER
G
A
T
E
COM
S
OUT
S
10K
(EXT.)
(EXT.)
REMOTE
VOLTAGE
CONTROL
20K
LOAD
SIGNAL
GROUND
REMOVE
SENSING LINK
REMOVE
SENSING LINK
R i
R i
f
R