94
PLZ-4WH
Controlling Voltage Mode
(CV mode and the +CV modes)
You can use an external voltage or an external resistance to control CV mode externally. The
voltage changes proportionally to the external voltage or external resistance.
You can use an external voltage to control the +CV modes externally. The voltage changes
proportionally to the external voltage.
To prevent damage from noise, use twisted signal wires.
By properly adjusting the OFS and FSC variable resistors on the rear panel, you will be able
to control the input current proportionally to the external voltage or resistance.
Control using an external voltage
When you apply an external voltage of 0 V to 10 V to the PLZ-4WH, the voltage that it
produces varies in accordance with the external voltage.
An external voltage of 0 V results in a voltage of 0 V. An external voltage of 10 V results in a
voltage of 100 % of the specified range.
Use a highly stable external voltage that has low noise.
1
Turn the POWER switch off.
See
CAUTION
To avoid damaging the PLZ-4WH, observe the following precautions.
• The maximum voltage that can be applied across pins 1 and 3 and across pins 5 and 6 of
the EXT CONT connector is ±11 V. Do not apply a voltage that exceeds this value.
• Pins 3 and 6 of the EXT CONT connector are connected to the negative load input
terminal. Make sure that the wires of pins 3 and 6 do not touch any of the other pins.
Vo
Vm×Ein
10
Vo: Input
voltage
Vm: Rated
voltage
Ein: External
voltage
0 ≤ Ein ≤ 10 V
Approx. 10 kΩ
Approx. 10 kΩ
Twist
Twist
5
6
A COM
EXT V CONT CV
+
-
Ein
1
3
A COM
+
-
Ein
CV mode
CV mode, +CV mode
EXT CONT
EXT CONT
EXT R/V CONT
Input voltage
Vo
External voltage Ein
: Rated voltage
Vm
Vm
0V
: Input current (before adjustment)
: Input current (after adjustment)
Full scale adjustment
Offset adjustment
When you are using the +CV modes, be sure to connect the external voltage across pins 5 and 6.
Содержание PLZ1004WH
Страница 13: ...Installation and Preparation This chapter describes how to unpack and prepare this product before you use it 1 ...
Страница 28: ...28 PLZ 4WH Remote Sensing ...
Страница 29: ...Basic Functions This chapter explains the operations for each operation mode and other basic functions 2 ...
Страница 47: ...Advanced Operations This chapter explains ABC preset memory setup memory protection functions and the menu 3 ...
Страница 61: ...Sequences This chapter explains the sequence function Sequences 4 ...
Страница 83: ...External Control and Parallel Operation This chapter explains external control and Parallel Operation 5 ...
Страница 115: ...Maintenance This chapter describes the maintenance procedures including cleaning inspection and calibration 7 ...
Страница 127: ...8 Specifications This chapter contains the specifications and gives the dimensions of the PLZ 4WH ...
Страница 137: ...Appendix A Operating Area B Sequence Program Creation Table C Options ...