110
PWR-01
Parallel/ Series Operation
|
Series operation
Connection
Connecting the Load
Connect the load as shown below.
1
Turn off all the PWR-01s that you want to connect in series.
2
Remove the OUTPUT terminal covers.
3
Connect the output terminal (positive or negative) of unit 1 or unit 2 to
the chassis terminal.
4
Use load cables to connect unit 1 and unit 2 to the load or relay terminal
block.
Use load cables that have sufficient current capacity (
). Wire the load cables so
that they are as short as possible. If the voltage drop in the load cable is large, the dif-
ference in electric potential between power supply units and the load regulation
become large.
5
Connect the cables to the output terminals of unit 1 and unit 2.
6
Attach the OUTPUT terminal cover.
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
To prevent oscillation, connect an electrolytic capacitor with a capacitance of a few hundred
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.
The withstand voltage of the electrolytic capacitor needs to be at least 120 % of the total
rated output voltage of the PWR-01s connected in series.
Load or relay terminal block
Unit 1
Unit 2
Output terminal
Chassis terminal
Output terminal
Chassis terminal
Load connection in series operation
(In this example, the negative terminal of unit 2
is connected to the chassis terminal.)
Summary of Contents for PWR1201H
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Page 113: ...Maintenance This chapter explains how to perform cali bration ...
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Page 135: ...Appendix A Factory Default Settings B Options C Troubleshooting ...
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