4 PLZ-5W
Checking Whether the Power Is
On or Off
Turning the power on
POWER switch
1
Check that the power cord is connected correctly.
2
Check that nothing is connected to the DC INPUT
(load input) terminals on the front and rear pan-
els.
3
Turn the POWER switch on ( ).
The display lights.
─ Note ─
If you notice strange sounds, unusual odors, fire, or smoke
around or from inside the PLZ-5W, flip the POWER switch off, or
remove the power cord plug from the outlet.
Turning the power off
1
Press the ( ) side of the POWER switch to turn
the power off.
CAUTION
After you turn the POWER switch off, wait at least 5 seconds
after the fan stops before you turn the POWER switch back
on. Repeatedly turning the POWER switch on and off at short
intervals will shorten the service life of the POWER switch and
the internal input fuse.
Selecting the load cables
WARNING
•
Risk of fire. Use load cables whose capacity is adequate
for the PLZ-5W’s rated output current.
• Risk of electric shock. Use load cables with a voltage
rating that meets or exceeds the isolation voltage
(±500 V) of the PLZ-5W’s load input terminals.
CAUTION
Use load cables with a core diameter that is appropriate for the
amount of current being used and with sturdy, flame-resistant
insulation.
If the wiring that you use for the load has a high resistance,
the voltage will drop significantly when current flows, and the
voltage at the load input terminals may fall below the minimum
operating voltage of the PLZ-5W. Using the following table as a
reference, select wiring whose nominal cross-sectional area is
as thick as possible.
Nominal
Cross-Sectional
Area [mm2]
AWG
(Reference
Cross-Sectional
Area) [mm2]
Allowable Current*
[A](Ta = 30 °C)
14
6
(13.3)
88
22
4
(21.15)
115
30
2
(33.62)
139
38
1
(42.41)
162
50
1/0
(53.49)
190
60
2/0
(67.43)
217
80
3/0
(85.01)
257
100
4/0
(107.2)
298
125
-
-
344
150
-
-
395
200
-
-
469
250
-
-
556
325
-
-
650
* Excerpt from Japanese laws related to electrical equipment.
Connecting to the load input terminals on the
rear panel
WARNING
Risk of electric shock.
• Do not touch load input terminals when the output is
turned on.
• The load input terminals on the front panel are con-
nected internally to the load input terminals on the rear
panel. The voltage applied to the terminal on one side is
transmitted directly to the terminal on the other side.
• Be sure to use the load input terminal cover.
CAUTION
To avoid damaging the product, observe the following precau-
tions.
• Do not connect the DUT to the load input terminals while the
PLZ-5W’s load is turned on.
• Do not connect electronic loads to the load input terminals on
the front panel and those on the rear panel at the same time.
• Do not invert the polarity when connecting. An overcurrent
might flow when the load is turned on.
To avoid overheating, observe the following precaution.
• Attach crimping terminals to the cables, and use the supplied
screws to connect the cables.
Connecting to the Device Under Test
