2787-2147 (/0000-00x0)
Notes on Operation
Product manual | Version: 1.2.2
65
Power Supply Pro 2
11.6 Short-Circuit and Overload Behavior
The product’s output is electronically protected against overload and short circuits.
The following values apply to the description below:
• U
OUT
: output voltage
• I
OUT
: output current
• I
N
: nominal output current
• I
ECB
: trip current of the electronic circuit breaker
• t
ECB
: trip delay of the electronic circuit breaker
You can find more information on the individual values in section Technical Data.
11.6.1 “Constant Current” Mode
In this mode, the load current on the output is limited if the nominal output current is ex-
ceeded by a significant amount. The load current is limited to about 110 % of the nominal
output current. This occurs for 20 seconds.
If the overload lasts longer, a 15-second pause occurs, during which the output voltage is
switched off. The output voltage is then switched back on. If the overload is still present,
the process starts again.
This mode is set by default.
I
OUT
/ I
N
t
20s
15s
15s
>110%
100%
20s
Figure 39: “Constant Current” Mode
11.6.2 “Constant Current with Latching Shutdown” Mode
In this mode, the load current on the output is limited if the nominal output current is ex-
ceeded by a significant amount. The load current is limited to about 110 % of the nominal
output current. This occurs for 20 seconds.
If the overload lasts longer, the output is switched off. To switch the output back on, man-
ual intervention is necessary. The following options are available for this:
• Communication interface
• Buttons
• Digital input
