Kikusui PBZ20-20, Руководство пользователя

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PBZ
Remote Sensing
Remote sensing is a feature that is used to switch the voltage measurement point of CV/CC
mode and the voltage feedback point of CV mode.
When remote sensing is enabled, the voltage measurement point of CV/CC mode and the
voltage feedback point of CV mode are switched from the rear panel OUTPUT terminals to
the contact points of the sensing terminals. Connecting the sensing terminals to the load (1)
reduces the influence of the voltage drop caused by the resistive component of the load wires
and by the load current and (2) allows measurement and compensation of the output voltage
across the load. The compensation of the output voltage is effective to the voltage drop that is
1.8 V or less for a single line.
Remote sensing of CV mode has a protection feature. Even if the remote sensing wires are
connected in reverse, shorted, or disconnected, the output voltage in CV mode is limited
within the specified voltage ± approximately 3.6 V. When the connection is fixed, the
protection feature automatically recovers.
p. 86
Use to enable remote sensing.
Connecting the Sensing Terminals
Cable type and stripping the coating off of the end of the cable
Use AWG24 to AWG16 (0.2 mm
2
to 1.25 mm
2
) cables when connecting to the sensing
terminals. Strip approximately 11 mm of coating from the end of the cable.
See
CONFIG
WARNING
To avoid electric shock and damage to the PBZ’s internal circuits, observe the
following precautions.
• Never wire the sensing terminals while the POWER switch is turned on.
• For sensing cables, use cables whose rated voltage is higher than the PBZ’s
isolation voltage (500 Vdc). Protect the uncovered sections of the shielded cable by
using insulation tubes whose withstand voltage is greater than the PBZ’s isolation
voltage.
• Insert the cables so that the wire strands do not touch the chassis when they stick
out of the sensing terminal. Also, insert the cables so that the stripped wires do not
stick out of the terminal.
11 mm
Strip gauge
While pressing here with a
screwdriver, insert the wire.
Correct Incorrect Incorrect
The stripped wire is
touching the chassis. The wire strands are
touching the chassis.