Kikusui PLZ-4W Series, User Manual

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6-10 Applied Operation PLZ-4W
6.3 Switching Function
Switching refers to the operation of executing two load current settings repetitively.
The switching function operates in CC and CR modes. The switching function is
suited to transient response characteristics test of regulated DC power supplies.
You can perform various tests by setting the switching frequency, ON/OFF ratio of
the switch (duty cycle), switching level, and switching time. You can also set the
slew rate of the current change. (See section 6.4, “Setting the Slew Rate.”)
When the switching operation is in progress, a trigger signal is output from the
TRIG OUT connector on the front panel. A pulse is output at the edges indicated by
the circles in Fig. 6-5.
Fig. 6-5 Characteristics diagram of a switching waveform
Fig. 6-6 Keys used in the switching function
■
Operating Procedure
1. Select the switching level.
Press the LEVEL key.
The LEVEL key illuminates.
The maximum value that can be speci fi ed is the value speci fi ed in the current
operation mode, and the minimum value is 0 A or 0 mS. If you press the %
(SHIFT+LEVEL) key, you can enter the level in terms of a percentage of the
current setting (0.0 % to 100.0 %).
To reenter the level using a value, press the LEVEL key again.
2. Set the switching level.
While viewing the display, turn the rotary knob to set the value.
You can press the rotary knob to switch between coarse adjustment and
fi ne
adjustment.
Th TL
FREQ
0[A] (0 %)
LEVEL[A] (%)
SET[A] (100 %)
Edge where the pulse is
output from the TRIG OUT
connector
SWITCHING
ENTER
SHORT
EDIT
SLEW RATE
RUN / STOP
UVP
PAUSE
STORE
RECALL
A B C
LOAD
Th/TL
FREQ / DUTY
MENU
PRESET SEQ
I
LEVEL
VRANGE
RANGE
SW ON
+CV
MODE
LOAD
SET / VSET
LOCK
SHIFT
ABC
OPP / OCP