6247G/6247C DC Voltage Current Source/Monitor Operation Manual
5.2.11 Operating Multiple 6247G/6247C
5-62
5.2.11.2
Serial Connection
Two 6247G/6247C units serially connected can generate up to - 30 V to +500 V/
320 mA.
The following figure shows a connection diagram in which two units are serially connected using a 4-wire
connection. The SENSE connection is not required for a 2-wire connection.
In ISVM serial connection, when the load voltage is less than 250 V against the setting current source value
of No.1, set the constant voltage source value of No.2 to 0 V.
When the load voltage is 250 V or higher, set the source value as follows:
No.1 setting voltage (250 V) + No. 2 setting voltage > Load voltage
Figure 5-16 Serial Connection
CAUTION:
1.
If the load is short-circuited, the two 6247G/6247C units apply reverse polarity voltage to each other.
Depending on the settings, an overload may be generated when a short circuit occurs.
2.
Only two units can be connected serially. Do not connect three or more units serially.
If the load is short-circuited, the maximum applicable voltage will be exceeded, and the 6247G/6247C may be
damaged.
3.
When using constant current, the smaller setting current of No.1 and No.2 becomes constant current as in
Figure 5-16. The other one becomes the constant voltage.
4.
Always set the source response of the serially-connected units to the same.
6247G/6247C No.1
6247G/6247C No.2
Output voltage
= No. 1 output v No. 2 output voltage
(for constant voltage)
Output current
= The smaller setting currents of No.1 and No.2
(for constant current)
