Description, device design, dimension drawing
2.5 Change-over switch
SITOP PSU8200 3ph
14
Manual, 11.2014, C98130-A7638-A1-2-7629
2.5
Change-over switch
Figure 2-6
Selector switch
The two switches A and B are used to influence the output characteristic curve:
Switch
ON
OFF
A
influences the output
characteristic in the
load range
Parallel operation:
"Soft" characteristic curve (see Figure 6-5 Output
characteristic curve 6EP3436-8SB00-0AY0 parallel
operation (Page 32) and Figure 6-6 6EP1437-3BA10
parallel operation output characteristic curve
(Page 33)) for the parallel operation of two or more
devices: The output voltage falls with increasing out-
put current (namely, also for the overcurrent pulse!).
This means that for full output current the highest
output voltage can normally no longer be attained.
Single operation:
Delivery state
"Hard" characteristic curve (see Figure 6-
3 Output characteristic curve 6EP3436-
8SB00-0AY0 single operation (Page 32)
and Figure 6-4 6EP1437-3BA10 single
operation output characteristic curve
(Page 32)) for normal operation (single
operation): The output voltage is inde-
pendent of the output current.
B
influences the output
characteristic in the
overload range
Latching shutdown:
If the output current rises above the rated value and
above the current limit, the device reduces the output
voltage (see Figure 6-7 Output characteristic curve
6EP3436-8SB00-0AY0 latching shutdown (Page 33)
and Figure 6-8 6EP1437-3BA10 latching shutdown
output characteristic curve (Page 33)). If the output
voltage falls below 20 V, the device shuts down latch-
ing, the red LED lights up. This limit voltage of 20 V is
independent of the set output voltage. The 'Short-time
overload current' feature is not available in this oper-
ating mode. In order to also be able to charge large
capacitances in this operating mode at the output,
non-latching shutdown is performed during the first
ten seconds after power on. During these first 10 s,
the device responds for overload as if the switch is
OFF.
Constant current:
Delivery state
If the output current rises above the rated
value and above the current limit, the
device reduces the output voltage. The
yellow LED lights up if the output voltage
falls below 20 V.
Delivery state: A-OFF; B-OFF
Note
Selector switches may only be activated when the device is switched off.