PD2-6210
Helios Large Display Analog Input Batch Controller Instruction Manual
15
Signal Connections
Signal connections are made to a six-terminal connector labeled SIGNAL on Figure 7. The COM
(common) terminal is the return for the 4-20 mA and the
10 V input signals.
Current and Voltage Connections
The following figures show examples of current and voltage connections.
There are no switches or jumpers to set up for current and voltage inputs. Setup and programming is
performed through the front panel buttons.
Figure 9. Transmitters Powered by Internal Supply
Figure 10. Transmitter Powered by Ext. Supply or Self-Powered
The current input is protected against current overload by a resettable fuse. The display may or may not
show a fault condition depending on the nature of the overload.
The fuse limits the current to a safe level when it detects a fault condition, and automatically resets itself
when the fault condition is removed.
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