3-12 Names and Functions of Parts PLZ-U
[1] DC INPUT (load input terminal on the rear panel)
Terminals used to connect the equipment under test to the PLZ-U. The terminal is
connected in parallel with the load input terminal on the front panel.
• For the connection procedure, see section 2.7.2, “Connection to the Load Input
Terminal on the Rear Panel.”
[2] +S and –S (remote sensing terminals on the rear panel)
Terminals used to connect the sensing wires when correcting the voltage drop
caused by the resistance of the load wire. The remote sensing terminals are located
on the front and rear panels, and they are connected in parallel inside the PLZ-U.
[3] Air outlet
Exhausts the internal air using the cooling fan to cool the inside of the PLZ-U. The
speed of the cooling fan increases according to the internal temperature.
[4] Manufacturing number (serial No.)
Manufacturing number of the frame.
[5] AC INPUT
Connector used to connect the power cord.
[6] GPIB
A connector used to connect the GPIB cable when controlling the PLZ-U via GPIB.
[7] RS-232C
A connector used to connect the RS-232C cable when controlling the PLZ-U via the
RS-232C.
[8] FRAME CONT1 and 2
Connectors used to externally control the load on/off, memory recall, and other
functions simultaneously on all channels.
[9] CH CONT1, 2, 3 (4, 5)
Connectors used to externally control the load on/off and perform external control
using external voltage reference on each channel. The connector also provides cur-
rent monitor output and power supply output for the controller.
[10] Strip gauge
Strip gauge for the screwless terminals used on the CH CONT connectors and sens-
ing terminals on the front panel.
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