PLZ-4W
Applied Operation 6-53
(2) External resistance control
Connecting an external resistance in the range of 0
Ω
to 10 k
Ω
to the PLZ-4W pro-
duces a wattage that is proportional or inversely proportional to the change.
Proportional control
The wattage corresponding to the external resistance of 0
Ω
is 0 W; the wattage cor-
responding to the external resistance of 10 k
Ω
is 100 % of the speci
fi
ed range.
Inverse proportional control
The wattage corresponding to the external resistance of 10 k
Ω
is 0 W; the wattage
corresponding to the external resistance of 0
Ω
is 100 % of the speci
fi
ed range.
Connected pins: J1-1 (signal), J1-3 (common)
Fig. 6-34
Equivalent circuit
Fig. 6-35
Control the wattage using external resistance
■
The setup procedure is the same as with CC mode.
See page 6-45 “Setup procedure for external voltage control”.
1
J1
Rin
Po
≈
Pm
Po: Input power
Pm: Rated power
Rin: External variable resistor
0
≤
Rin
≤
approx. 10 k
Ω
Rin(k
Ω
)
10
Rin(k
Ω
)
10
3
Proportional control
Inverse proportional control
1 mA
MAX12 V
A COM
EXT R/V CONT
Po
≈
Pm
1
–
Twist
Pm
Pm
0 W
External resistor Rin
: Rated power
: Input power (before adjustment)
: Input power (after adjustment)
: Input power (after adjustment)
Proportional control
Inverse proportional control
0
Ω
10 k
Ω
Input power Po
Offset
adjustment
Full scale adjustment
Summary of Contents for PLZ-4W Series
Page 10: ...VIII Contents PLZ 4W ...
Page 20: ...1 10 General Information PLZ 4W ...
Page 38: ...2 18 Installation and Preparation PLZ 4W ...
Page 90: ...5 30 Basic Operation PLZ 4W ...
Page 192: ...9 10 Specifications PLZ 4W ...
Page 214: ...A 22 Appendix PLZ 4W ...