Series operation of ARGOS power supplies enable a higher output voltage, however the total
output voltage should not exceed 300V. Besides it is to be noted that a voltage drop due to the
connecting lines is generated according to the current load. For an accurate regulation the
following configuration is to be respected.
LOAD
ARGOS 1
ARGOS 2
Fig. 6
9.1 Remove Jumpers:
1.1
For ARGOS 1, Jumper between -S and –V
1.2
For ARGOS 2, jumpers between -S and -V, also bS and +V
9.2 Connections
2.1
ARGOS 2 +V load terminal to the plus pole of load (wire with sufficient
cross section>/=5A/mm²)
2.2
ARGOS 1 -V load terminal to minus pole of load (cross section >/=5A/mm²)
2.3
ARGOS 2 -V load terminal to ARGOS 1 +V load terminal
(cross section >/=5A/mm²)
2.4
ARGOS 2 +S to plus pole of load
2.5
ARGOS 2 -S to ARGOS 1 +S
2.6
ARGOS 1-S to minus pole of load
The output voltages are adjusted via the corresponding ‘‘VOLTAGE’’ Pots.. The total output voltage is
the sum of the two adjusted voltages. When the current limit values are not equal, the
higher
value
applies as valid total current limit. When one ARGOS surpasses its current limit it will deliver no
energy anymore and will have a small negative voltage (< 1V) at its load terminal.
Because none of the two ARGOS measures the total voltage, an overvoltage protection function
(OVP) is not possible. In order to obtain an even load distribution it is recommended to adjust the
‘‘VOLTAGE’’ and ‘‘CURRENT’’ control of both ARGOS in such a way that they display an equal
voltage. Devices should be switched on and off simultaneously.
10. Parallel operation
Argos 500
Page
12
von
16
ISSUE
07/05
