Electrical Design
‑75‑
Wiring DI1 to DI7
● Sink wiring mode
Figure 3‑17 Sink wiring mode
To use the internal 24 V power supply, which is the most commonly used method,
short OP and 24V of the jumper terminal J35‑CN4 on the AC drive control board,
and connect the COM terminal of the AC drive to the 0V terminal of the external
controller.
In the mode, the DIs of different AC drives cannot be connected in parallel.
Otherwise, the DI may malfunction. If DIs of different AC drives must be connected
in parallel, connect the anode of a diode to the DI in series and the diode needs to
satisfy the requirement: IF > 40 mA and VR > 40 V, as shown in "
Figure 3–18 Parallel
connection of DI terminals of different AC drives in sink wiring mode
"
on page 76
.
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