4601 I-V Meter Operation Manual
5.6.3 Series Connection
5-40
5.6.3
Series Connection
Two 4601 units connected in series are capable of sink operation up to +600 V/-1 A.
The output voltage is the total of No.1 output voltage (HI side) and No2. output voltage (LO side).
Set the current limit values under the following conditions:
No.1 current limit value < No.2 current limit value
When setting the limit values to 10 A, set as follows:
No.1 limit value = 10 A
No.2 limit value = 10.2 A
When the PV output voltage exceeds 300 V, set the output status to Operate or Suspend according to the
following procedure.
If this procedure is not followed, an overvoltage alarm may occur.
<Operate procedure>
No.2 setting voltage
PV output voltage - 300 V
No.1 setting voltage = 0 V
Set No.2 to Operate.
Set No.1 to Operate.
No.2 setting voltage = 0 V
Set the source voltage.
•
When setting the output voltage to 300 V or less, set the No.2 output voltage.
•
When setting the output voltage to higher than 300 V, set the No.2 output voltage to 300 V and
set the No.1 output voltage as desired.
<Standby procedure>
No.1 setting voltage = 0 V
No.2 setting voltage
PV output voltage - 300 V
Set No.1 to Standby.
Set No.2 to Standby.
As for series connection, select LoZ when using Suspend.
Use the No.1 measured value (HI side) as current measured value.
Figure 5-13 shows two units connected in series in 4-wire connection.
1
2
3
4
5
6
1
2
3
4
