Digital output signals (from the control system)
General
WARNING!
Danger of an electric shock.
This can result in serious injury and damage to property.
▶
The automatic-welder interface ROB 3000 must not be used for controlling any com-
ponents that are directly connected to the mains.
The digital inputs and outputs are galvanically separated
- from one another
- from the LocalNet and the welding potential
- for a maximum voltage difference of 100 V
NOTE!
If the connection between the power source and the automatic-welder interface is
interrupted, all digital output signals at the automatic-welder interface are set
to “0”.
There is a potential-free, switched transistor for each of the digital output signals.
Each transistor is linked up to the following connections:
- Signal voltage supply
- Output for the relevant digital output signal
For outputting a digital output signal:
- Link 24 V from the automatic-welder control system to the “Signal voltage supply”
connection
- Link the output to the relevant input of the automatic-welder control system
Current flow
signal
Terminal 1/7..... Output signal
Terminal 1/8..... Signal voltage supply
The current-flow signal is initialised as soon as a stable arc has been established after
the start of arc-ignition.
Power source
ready
Terminal 2/15..... Output signal
Terminal 2/16..... Signal voltage supply
The “Power source READY” signal remains initialised for as long as the power source is
ready for welding.
As soon as an error message occurs at the power source, or the “Quick stop” signal is
initialised by the automatic-welder control system, the “Power source READY” signal will
cease to be applied.
This means that the “Power source READY” signal can detect both internal powersource
errors and errors in the automatic welder.
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