Kikusui PLZ-30F, Operation Manuals

Page: 85 / 192

PLZ-U Application Operation 5-27
• Use external voltage reference of low noise and high stability.
• Use twisted or shielded wires for the signal wires. This can prevent disturbance
from noise.
Fig. 5-18 Equivalent circuit
Fig. 5-19 Control using external voltage reference
■
Procedure
1. Connect the external voltage reference and turn on the power.
Follow Fig. 5-18 and connect the external voltage reference across pins 1 and 3
of CH CONT.
2. Set the operation mode and range.
3. Select the external voltage reference using con fi guration settings.
For the procedure of setting the con fi guration, see section 5.9, “Con fi guration
Settings.”
• If an external voltage reference is applied, the approximate value of the external
voltage reference is shown in the setting display of the frame. In addition, the
EXT LED of the channel illuminates.
Set CONFIG
number 2 to 1
• CC control in CC or CC+CV mode
• CR control in CR or CR+CV mode
• CV control in CV mode
Set CONFIG
number 2 to 2
• CV control in CC+CV or CR+CV mode
NOTE
COM
EXT REF
Approx. 20 k Ω
CH CONT
+
–
Ein
Ein: External voltage
0 ≤ Ein ≤ 10 V
1
3
Setting ≈
Ein (V)
10 (V)
×
rated value
100 %
Setting
0 %
External voltage (V)
0
Ein
Rated value
Setting
CC mode: Current
CR mode: Conductance
CV mode: Voltage
10
NOTE