Sumitomo HF-520 Series - Main Frequency Reference

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3.6 I/O Connections
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Transistor Input Signal Using +24 V Common/Source Mode
When controlling digital inputs by PNP transistors (+24 V common/sourcing mode), set
the DIP switch S3 to SOURCE and use an external 24 V power supply.
Forward run / stop
Reverse run / stop
External fault N.O.
Fault rest
Multi-step speed 1
Multi-step speed 2
Jog frequency
External
power supply
Shielded cable
Drive
Multi-function input
S1
S2
S3
+24V
S4
S5
S6
S7
SC
S3
SINK
SOURCE
+24 V
SINK
SOURCE
Figure 3.21 Source Mode: Sequence from PNP Transistor (+24 V Common)