2787-2154
Notes on Operation
Product manual | Version: 1.0.2
63
Power Supply Pro 2
Use external rail-mount terminal blocks when connecting in parallel. A parallel connection
directly on the connectors on the secondary side of the product is not allowed.
For decoupling the outputs in parallel mode, use of diodes in the positive path is recom-
mended. These diodes must be designed for the product’s maximum output current.
For active load distribution, the “Active Droop” setting is enabled by default. This reduces
the output voltage in the event of a load (by 300 mV from 0 A up to the nominal current).
This smooth characteristic curve ensures better current sharing for parallel operation of
power supplies. This setting can be enabled in the Dialog: Settings dialog in the “DC Out-
put” section of the WAGO Interface Configuration software.
11.5 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.
11.5.1 “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
