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5-5. Connecting Loads
<Precautions>
・
Use crimp-style terminals, etc. to connect loads with the output terminals of the PW-A power
supply unit firmly.
・
Use wires of sufficient current capacity for connection.
・
Be sure to shut off the MAIN OUTPUT key switch of the PW-A unit before connecting or
disconnecting wires. This is important for the safety.
・
The PW-A unit incorporates a capacitor of several hundred microfarads between the COM terminal
and each output terminal and a resistor for discharging this capacitor when the output is turned off.
When the PW-A unit is used to charge a battery, connect a diode in series as shown in Fig.8 below
to prevent electric charge of the load from being discharged to the output of the PW-A unit.
Fig.8 Connecting Load with Energy
COM
PW-A power
supply unit
Load
Connect a diode that meets the following conditions:
・
Must have sufficient reverse voltage resistance against the rated voltage of the PW-A unit.
・
Must have sufficient forward current capacity against the rated current of the PW-A unit.
・
Take proper measures for radiating heat generated by the element.
R
(such as a battery)
※
The above figure shows an example of positive output.
Connect the diode reversely in the case of negative output.
