20
(0
≦
V
2
≦
10V)
I
0
[A] : Output current
I
max
[A] : Maximum rated current
V
2
[V] : External signal voltage
Note : The external signal voltage should be 0 to 10V. The input impedance across
⑨
and
⑪
is approximately 10k ohms. Use a two-core shield cable and connect the
shield line to
⑪
.
7-5. Series/Parallel Connection Operation
With some units connected in series or in parallel, it is possible to control all units with one
unit taken as the master and the other as slaves.
7-5-1. Series connection
The output voltage is the sum of the output voltages of the units. The output voltage and
current of each slave unit are controllable with the constant-voltage and constant-current
controls of the master unit.
1) Turn off power.
2) Remove the short bar
③－④
of each slave unit.
3) Connect external resistor R as shown Fig. 12.
4) Ground the GND terminal either of the master unit if the positive line is grounded or of
the last slave unit if the negative line is grounded. (The output connection diagram shown
the negative line grounded.)
