Basler Electric DGC-2020 - Manual (Page 315)

Figure 7-29. Settings Explorer, Programmable Outputs, Contact Outputs Screen
Each output can be programmed with a text label describing its use; this label appears in BESTlogicPlus
Programmable Logic where the output is used to aid in program clarity and ease of programming.
Run Relay, Pre-Start Relay, and Start Relay
Front Panel Navigation Path: SETTINGS > SYSTEM PARAMS > RELAY CONTROL
In some systems, it may be beneficial to modify the standard functionality implemented by the DGC-2020
for the Run, Pre-Start, or Start relays. If your generator does not require a pre-start function, it may be
desired to use the 30A relay assigned to it for other purposes. These relays can be configured in one of
two ways. The first is to operate under their predefined functionality, making them a dedicated output. The
second way is to select them to be programmable, in which case they become available to BESTlogicPlus
Programmable Logic to be used in the same manner as the programmable relay outputs.
Figure 7-30 shows the Relay Control screen used to set the operation of these relays to predefined or
programmable operation.
Figure 7-30. Settings Explorer, System Parameters, Relay Control Screen
For each relay (Start, Run, and Pre-Start), select whether it should use its predefined functionality or be
made programmable.
When Programmable is selected for a relay, it becomes available to BESTlogicPlus Programmable Logic
as a logic element. The elements are titled Start Output, PreStart Out, and Run Output. The predefined
functionality is available as an input to the logic. If Programmable is selected as the relay control mode,
connect the corresponding predefined input function to the relay and it functions as if Predefined were
selected as its relay control type. However, other logic can be combined with it to create operation that is
more versatile. If Programmable is selected for a relay, but it is not used in the logic, that relay will never
close.
A logic example connecting the predefined inputs directly to the “programmable” relay outputs for all three
relays is shown in Figure 7-31.
9400200990 Rev X DGC-2020 Setup 7-27