Change-Over Switch - Siemens SITOP series Operating Instructions Manual

Description, device design, dimension drawing

2.5 Change-over switch

2.5 Change-over switch
Figure 2-7
The two switches A and B are used to influence the output characteristic curve:
Switch
A
influences the output
characteristic in the
load range
B
influences the output
characteristic in the
overload range
Delivery state: A - OFF; B - OFF
14
A/B selector switch
ON
Parallel operation:
'Soft' characteristic curve (see, e.g. Figure 6-10
6EP1333-3BA10 parallel operation output
characteristic (Page 43)) for the parallel
operation of two or more devices: The output
voltage falls with increasing output current
(namely, also for the overcurrent pulse!).
This means that for full output current the
highest output voltage can normally no longer
be attained.
Latching shutdown:
If the output current rises above the rated value
and above the current limit, the device reduces
the output voltage (see, e.g. Figure 6-14
6EP1333-3BA10 latching shutdown output
characteristic (Page 44)). If the output voltage
falls below 20 V, the device shuts down
latching, 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 operating mode.
To also permit the uploading of large
capacitances in this operating mode at the
output, a shutdown is performed during the first
10 s after power on or remote on in conjunction
with the non-latching signaling module. During
these first 10 s, the device responds for
overload as if the switch is OFF.
OFF
Single operation:
Delivery state
'Hard' characteristic curve (see, e.g. Figure 6-3
6EP1333-3BA10 single operation output
characteristic (Page 41)) for normal operation
(single operation): The output voltage is
independent of the output current.
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.
Operating Instructions, 06.2014, C98130-A7548-A1-3-7629
SITOP modular 1ph/2ph