
5.Power Mate-D/F/H CONNECTION B-62714EN/04
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(3) Selecting common lines
For DC input signals B, you can choose from two types of
common lines. One is of fixed source type (0 V common). The
other is a source type (0 V common) or sink type (24 V
common), which are selectable by wiring on the machine side, as
shown below.
Machine
Receiver output
DC input signal
Filter and level
conversion circuit
Receiver circuit
Fig. 5.4(e) Common line connection
(a) When the sink type is used
Connect (A)-(B), and connect (C)-(D). Logic is 0 when the
contact is open, and logic is 1 when the contact is closed.
(b) When the source type is used
Connect (A)-(D), and connect (B)-(C). Logic is 1 when the
contact is open, and logic is 0 when the contact is closed.
NOTE
The safety standard requires the use of the sink
type.