96
PLZ-4WH
Controlling Voltage Mode (CV mode and the +CV modes)
Control using an external resistance
You cannot use an external resistance to control the +CV modes.
When you connect an external resistance of 0
Ω
to 10 k
Ω
to the PLZ-4WH, the voltage varies
proportionally or inversely to the external resistance.
Proportional control: An external resistance of 0
Ω
results in a voltage of 0 V. An external
resistance of 10 k
Ω
results in a voltage of 100 % of the specified range.
Inverse control:
An external resistance of 10 k
Ω
results in a voltage of 0 V. An external
resistance of 0
Ω
results in a voltage of 100 % of the specified range.
We recommend that the variable resistors that you connect to the PLZ-4WH be resistant to
changes due to temperature and the passage of time. Examples of such resistors include
wire wound and metal film resistors and multi-turn potentiometers. Use resistors that have a
residual resistance of 50
Ω
or less when set to the minimum resistance.
1
If you are performing proportional control, set the resistance to the
minimum value. If you are performing inverse control, set the resistance
to the maximum value.
2
Turn the POWER switch off.
3
Connect the external variable resistor across pins 1 and 3 of the EXT
CONT connector.
4
Turn the POWER switch on, and make sure that the load is off.
5
Set the operation mode and the current.
If you also want to control the current range externally, be sure to set the range to H.
6
From the menu, select “2.Configuration” > “3.External” > “Control CV” >
“OFF.”
If it is on, turn it off.
7
From the menu, select “2.Configuration” > “3.External” > “Control.” If
you are performing proportional control, select “R.” If you are
performing inverse control, select “Rinv.”
Doing so enables the external control of CV mode.
8
Turn the power switch off and then on again.
The menu settings are applied.
: Input voltage (before adjustment)
: Input voltage (after adjustment)
: Input voltage (after adjustment)
Proportional control
Inverse control
Full scale
adjustment
Offset adjustment
Vm
Vm
Input voltage
Vo
0 V
External resistance Rin
0
Ω
10 k
Ω
: Rated voltage
1
Rin
3
1 mA
MAX12 V
A COM
EXT R/V CONT
Twist
Vo Vm
Vo: Input voltage
Vm: Rated voltage
Rin: External variable resistor
0 ≤ Rin ≤ approximately 10 k
Ω
Rin (k
Ω
)
10
Vo Vm 1−
Rin(k
Ω
)
10
Proportional control
Inverse control
EXT CONT
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 ...