KEPCO BOP 5-20DL, Operator'S Manual

Page: 49 / 70

BOP 5-20DL 081915
3-15
FIGURE 3-13. SYMMETRICAL REMOTE CONTROL OF THE CURRENT LIMITS
FIGURE 3-14. INDEPENDENT REMOTE CONTROL OF + I
O
AND – I
O
LIMITS
3.5 REMOTE CONTROL OF CURRENT CONTROL CHANNEL
Since the input signal requirements for the control of the BOP output current are the same as for
programming the output voltage, and since the control circuitry of the current channel is almost
identical to that of the voltage channel, all programming circuit descriptions for programming the
output voltage of the BOP can be applied to current programming. The current programming cir-
cuits are illustrated in the following diagrams. Any comments specifically applicable to current
channel programming are noted on the diagrams.
NOTE: Adjust the zero output current point by means of the built-in ZERO control of Preamp
“B” or that of the I
O
Comp. Amp.
3043706
+
22
28
C
+
10V
10V
POWER
STAGE
-
+
G
A
T
E
-
+
+
-
8
34
1
+
+
-
+
-
+
-
(+)
I
o LIMIT-
AMP (EXT)
(+)
I
o LIMIT-
AMP (INT)
(-)
I
o LIMIT-
AMP (INT)
(-)
I
o LIMIT-
AMP (EXT)
(+)
I
o LIMIT
CONTROL
BIAS 15V
(-)
I
o LIMIT
CONTROL
(+)
I
o LIMIT-
COMP AMP
(-)
I
o LIMIT-
COMP AMP
DRIVER
COMMON
BOP
I
o
LIMIT CHANNEL
PART OF REAR PROGRAMMING CONNECTOR
57.6K
57.6K
LOAD
-
+
S
R
COM
S
OUT
S
NOTES:
1. Local Sensing shown (links installed between COM
and S and between OUT and S terminals).
2. On rear programming connector install jumpers between
terminals (8) and (34) and remove jumper between (1)
and (34).
CURRENT
SENSE AMP
I
o CAL
SIGNAL
GROUND
+
±I
o LIMIT
CONTROL
0-10V
(EXT.)
3043707
+
22
28
C
+
10V
10V
POWER
STAGE
-
+
G
A
T
E
-
+
+
-
8
34
1
+
+
-
+
-
+
-
(+)
I
o LIMIT-
AMP (EXT)
(+)
I
o LIMIT-
AMP (INT)
(-)
I
o LIMIT-
AMP (INT)
(-)
I
o LIMIT-
AMP (EXT)
(+)
I
o LIMIT
CONTROL
BIAS 15V
(-)
I
o LIMIT
CONTROL
(+)
I
o LIMIT-
COMP AMP
(-)
I
o LIMIT-
COMP AMP
DRIVER
COMMON
BOP
I
o
LIMIT CHANNEL
PART OF REAR PROGRAMMING CONNECTOR
57.6K
57.6K
LOAD
-
+
S
R
COM
S
OUT
S
NOTES:
1. Local Sensing shown (links installed between COM
and S and between OUT and S terminals).
2. On rear programming connector remove jumpers between
terminals (8) and (34) and between (1) and (34).
CURRENT
SENSE AMP
I
o CAL
SIGNAL
GROUND
+ +
-I
o LIMIT
CONTROL
0-10V
(EXT.)
+I
o LIMIT
CONTROL
0-10V
(EXT.)