29
5-7
．
Constant-Current Remote Control
1. Output current control using external voltage
＊
It is possible to control the output current using 0 to 10 V
external voltage.
1) Shut off the POWER switch.
2) Set the offset and FS switches of "I ext. V" on the front panel
to the ON positions with the attached screwdriver. Connect a
cable to the terminals on the rear panel as shown below.
Relationship between output current
（
I
0
）
and external voltage
（
E
2
）
I
0
：
Output current
Ⅰ
0
≒
×
E
2
[V]
（
0
≦
E
2
≦
10V
）
I
max
：
Rated current
E
2
：
External voltage
3) Adjustment procedures
- Apply 0.1 V between the "ext. cont. I" V+ terminal and "ext.
cont. I" V- (-S) terminal on the rear panel.
- Press the OUTPUT key to turn on power.
- Rotate the I offset control on the front panel with the attached
adjustment screwdriver to adjust the output current to 1% of
the rated current.
- Then, apply 10 V between the "ext. cont. I" V+ terminal and
"ext. cont. I" V- (-S) terminal on the rear panel.
- Rotate the I FS control on the front panel with the attached
adjustment screwdriver to adjust the output current to 100% of
the rated current.
I
max
10
Front panel switches and
I ext.V
I offset
I FS
ON
OFF
Terminals on rear panel
ext.cont
I
E
2
Use a shielded cable or twisted pair wires.
.
V
－
(
－
S)
.V+
