4.3 Functional Description
16
Parallel Operation
By operating the device in parallel mode the output current of the ERS can be doubled. For this the
two output units of the ERS are wired parallel and, in the menu “Unit Parameters” (see
section 6.4.9,
p. 57
), the channel wiring has to be set to “Parallel”.
For serial operation only one isolation monitor may be active.
Below you will find an overview of the possible current combinations, depending on the device type.
Table 13 Specifications parallel mode
Device type
1200-1200/160
Voltage
1 Channel 600
V
Current
1 Channel 1200
A
Power
1 Channel 160
kW
~
=
Ma
in
s
3
P
/
4
0
0
V
~
5
0
H
z
control
system
communication
GUI
measurement
isolation
transformer
AFE
active front end
MPC
multi parallel converter
600 V
±1200 A
1 channel
~
=
=
=
=
=
Fig. 5 Block diagram of parallel wiring of the ERS output channels
Fig. 6 Connecting a ERS BIC for parallel operation
+
+
-
-
DUT 1
+
-
-
X11
-
X12
Connect sense for
Channel 2
Connect sense for
Channel 1
Connection of CH 1 (+) with CH 2 (+) and CH 1 (-) with
CH
2 (-) (connecting cables included in delivery)
DC-Channel 2
DC-Channel 1