6-3 PARALLEL OPERATION
(1) When a current capacity larger than a single unit is required, a couple of the units may be
used in a parallel connection.
In a parallel operation,a unit becomes the main unit and other becomes the sub-unit.
Setting of the voltage and current should be made of the main unit.
(2) Connection
Make the connection while the power off.
- GND +
- GND +
(main)
(sub)
For parallel operatio,.make the connection in the sequence of the (+) terminal of the main unit,(+)
terminal of the sub-unit,(-) terminal of the main unit,and(-) terminal of the sub-unit.
Then connect the wires between the Parallel terminal (main unit) and the Parallel terminal (sub unit)
Use thick wires for all the connections.
(a) Turn the voltage knob (5),(4) and the current knob(3) of the sub unit full clockwise.
(b) The voltage and current are variable by the main unit.
The output current limit can be selected within a range of about 10 to 100% of the
double of the maximum rating current.
In this case,as the load current increase, the ampere meters of both main and sub units
swing,and the load current is indicated as the sum of both amperemeters.
NOTES : Other type of regulated DC Power supply can be connected for parallel operation.
The maximum number of units for parallel operation is limited to 2 units.
7. NOTES ON ENVIRONMENTAL CONDITION
7-1. Avoid using the unit in such a place where the ambient temperature exceeds 40℃ or under
the direct sum shines.
Limit the maximum output current when the unit is used in such a place where ventilation is
interrupted or a radiation exists other equipments.
7-2. Use the instrument whitin 10% tolerance of the specified frrom the power source.
Fig.6-4
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