88
PLZ-4WH
Controlling Constant Current Mode (CC Mode) Externally
You can use an external voltage or an external resistance to control CC mode externally. The
input current changes proportionally to the external voltage or external resistance.
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 input current varies in
accordance with the voltage.
An external voltage of 0 V results in an input current of 0 A. An external voltage of 10 V
results in an input current of 100 % of the specified range. The precision of the PLZ-4WH
cannot be guaranteed for voltages below 0 V or above 10 V.
Use a highly stable external voltage that has low noise.
1
Turn the POWER switch off.
2
Connect the external voltage across pins 1 and 3 of the EXT CONT
connector.
3
Turn the POWER switch on, and make sure that the load is off.
4
Set the operation mode and the current range.
If you also want to control the current range externally, be sure to set the range to H.
5
From the menu, select “2. Configuration” > “3.External” > “Control” >
“V.”
See
CAUTION
To avoid damaging the PLZ-4WH, observe the following precautions.
• The maximum voltage that can be applied across pins 1 and 3 of the EXT CONT connector
is ±11 V. Do not apply a voltage that exceeds this value.
• Pin 3 of the EXT CONT connector is connected the negative load input terminal. Make sure
that the wire of pin 3 does not touch any of the other pins.
Io
Im×Ein
10
Io: Input
current
Im: Rated
current
Ein: External
voltage
0 ≤ Ein ≤ 10 V
1
3
EXT CONT
+
Ein
A COM
EXT R/V CONT
Approx. 10 kΩ
Twist
–
Im
Input current
Io
External voltage Ein
: Rated current
Im
0 A
0
V
10
V
: Input current (before adjustment)
: Input current (after adjustment)
Full scale adjustment
Offset adjustment
See
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 ...