MD600 Series Compact AC Drive Hardware Guide-EN-B06.PDF - 第75页
Wiring ‑ 74 ‑ ● Sink wiring Figure 6‑9 Sink wiring To use the internal 24 V power supply of the drive, which is the most commonly wiring method, set the DIP switch S4 to 24V (short the OP and 24V terminals), and connect …
Wiring
‑73‑
Figure 6‑7 Wiring of AI terminals
To select the current input mode for AI1, set S3 to ON. In this case, the input resistance is
500 Ω. The wiring is as follows.
Figure 6‑8 Wiring of AI1 in the current input mode
Wiring DI1 to DI5
When the OP terminal is connected to the internal 24 V (DIP switch S4 set to 24V), do not
short the COM and OP terminals. Otherwise, the internal 24 V power supply will be
damaged.
Wiring
‑74‑
● Sink wiring
Figure 6‑9 Sink wiring
To use the internal 24 V power supply of the drive, which is the most commonly wiring
method, set the DIP switch S4 to 24V (short the OP and 24V terminals), and connect
the COM terminal of the 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 6–10 Parallel connection
of DIs of different AC drives in sink wiring mode
"
on page 74
.
Figure 6‑10 Parallel connection of DIs of different AC drives in sink wiring mode
Wiring
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● Source wiring
Figure 6‑11 Source wiring
In the source wiring mode, you can only use the external 24 V power supply. To use
the external power supply, set the DIP switch S4 to NC (OP unconnected), connect the
OP terminal of the AC drive to the 0V terminal of the external controller, and connect
the anode of the 24 V external power supply to the DI through the control contact on
the external controller.
DO wiring
To use the DO terminal to drive a relay, connect a snubber diode to both ends of the relay
coil. Otherwise, it may cause damage to the 24 VDC power supply. Ensure that the driving
capacity does not exceed 50 mA.