Omicron CIBANO 500 PTM - 4.2 Current Operating Mode

OMICRON 27
Functional scheme
In comparison to the current operating mode (see 4.2 "Current operating mode" later in this chapter) in
which you can select three individual amplifiers the voltage operating mode provides only one single
amplifier composed of six amplifiers. Consequently, you cannot apply two different voltages at the same
time but only sequentially. In the voltage operating mode, two modes are available: the high-range
voltage mode and the low-range voltage mode. For the output data of the voltage operating mode, see
21.2 "CIBANO 500 specifications" on page 301.
The current measurement is performed in series to each IGBT. The voltage is measured for each output
individually.
4.2 Current operating mode
The following figure explains the CIBANO 500 current operating mode.
Figure 4-4: The CIBANO 500 current operating mode
Figure 4-4: "The CIBANO 500 current operating mode" shows the switching of the internal amplifiers in
the current operating mode. In this case three independent current channels are available: A1, A2 and
A3. These channels are driven by the amplifiers Amp X, Amp Y and Amp Z. The sockets B1, B2 and B3
are connected to the same potential, in this case to the neutral potential of the channels A1, A2 and A3.
In the current operating mode, two modes are available: the high-range current mode and the low-range
current mode. Each channel is equipped with two amplifiers giving a total of six amplifiers which can
either be switched in parallel (high-current mode) or in series (low-current mode). For the output data of
the current operating mode, see 21.2 "CIBANO 500 specifications" on page 301.
High-range
current
mode
Low-range
current
mode
Half voltage
double
current
Double
voltage half
current