Morningstar RELAY DRIVER Manuel D'installation, D'utilisation Et D'entretien page 51

5.1.1 General Channel Schematic
V+
(68Vdc Max)
CH x
A / D
~ 100K
~ 0.6 Ω
Figure 223. General channel schematic
A general schematic representing each of the four channels is shown above in
Figure 23. Each channel has an input resistance of approximately 100k ohms
and is diode isolated from Relay Driver power and ground. A shunt (approx. 0.6
ohms) measures channel current.
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