Kikusui PMX32-3DU, Руководство пользователя

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74
User’s Manual
PMX_MULTI
Parallel Operation and Series Operation | Overview of Series Operation
Connection for series operation
Connecting the Load
1
Turn the POWER switch off.
2
Connect the load cables
(p.16)
to the CH1 and CH2 output terminals.
3
Connect the load cables of CH1 and CH2 to the load.
Use load cables that have sufficient current capacity. If you are connecting to a relay terminal
block, use wires with the same length and cross-sectional area, and wire them as short as possible
(50 cm or less). If the voltage drop in the load cable is large, the difference in electric potential and
the load regulation become large.
4
Connect the negative terminal of CH1 or the positive terminal of CH2 to the chassis
terminal with a short bar.
Ground the output terminal of only one of the channels. Do not ground the output terminals of both
channels.
Do not connect the positive terminal of CH1 or the negative terminal of CH2 to the chassis terminal.
5
Attach the output terminal cover.
This completes the connections.
WARNING
Risk of electric shock. Turn the POWER switch off before you touch the output termi-
nals. Attach the output terminal cover after you finish wiring the load.
CAUTION
Risk of damage.
• If you are connecting the output terminal to the chassis terminal, connect the negative ter-
minal of CH1 or the positive terminal of CH2 to the chassis terminal.
• The output terminals of CH1 and CH2 will output about half the specified output voltage (at
no load). Connecting in a manner different from the figure below can offset the balance
between the CH1 and CH2 output voltages and may damage the product.
• To prevent oscillation, connect an electrolytic capacitor with a capacitance of a few hun-
dred µF to a few ten thousand µF across the load as necessary. If the wires are long, the
wiring inductance and capacitance can cause phase shifting at a level that can not be
ignored. This may lead to oscillation.
Use an electrolytic capacitor that has a withstand voltage that is at least 120 % of the rated
output voltage.
Load or
relay terminal block
PMX
Output terminal
CH2
Output terminal
CH1
Chassis
terminal
Connect the negative terminal of CH1 or the
positive terminal of CH2 to the chassis terminal.
Load connection for series operation (CH1 and CH2)
Example of connecting the negative terminal of CH1 to the
chassis terminal