MD600 Series Compact AC Drive Hardware Guide-EN-B06.PDF - 第73页
Wiring ‑ 72 ‑ Table 6–4 DIP switch definitions Name Function S1 ON: Termination resistor connected for RS485/CAN communication OFF: Termination resistor disconnected for RS485/CAN communication S2 ON: Termination resisto…
Wiring
‑71‑
External
terminal
Terminal
type
Transmission
information
type
Terminal
mark
Terminal name Function
CN4 12-pin
terminal
block
DI/DO/AI/AO/
RS485
485- RS485
communication
signal -
(RS485 model)
Negative RS485 communication signal
DI5 DI5
(CAN model)
Isolated sink/source programmable DI; input
frequency: < 100 Hz
The operating voltage ranges from 15 V to 30
V. The voltage lower than 5 V is invalid and
the voltage higher than 15 V is valid. The
input impedance is 3.61 kΩ.
DI1 DI1 See DI5 above.
DI2 DI2
DI3 DI3
CN4 12-pin
terminal
block
DI/DO/AI/AO/
RS485
DI4 DI4 High-speed pulse input terminal (HDI);
maximum input frequency: 20 kHz
The working voltage ranges from 15 V to 30
V. The voltage lower than 5 V is invalid and
the voltage higher than 15 V is valid.
Input impedance: 3.61 kΩ
OP Digital input
power supply
common terminal
It is connected to 24V by default. When DI1 to
DI5 are driven by external signals, connect
OP to COM or the external 24 V power supply,
and disconnect OP from the internal 24V
terminal by setting the S4 DIP switch to ON.
COM Reference ground
of 24 V power
supply
Internally isolated from GND
S - - S1 DIP switch for
termination
resistor for 485+/
CANH
communication
The DIP switch is disconnected by default.
For details, see "
Table 6–4
"
on page 72
S2 DIP switch for
termination
resistor for 485-/
CANL
communication
The DIP switch is disconnected by default.
For details, see "
Table 6–4
"
on page 72
S3 Voltage/current
mode switch for AI
The voltage mode is used by default. For
details, see "
Table 6–4
"
on page 72
S4 24 V power
supply/external
power supply
switch
The 24 V power supply is connected to OP by
default. For details, see "
Table 6–4
"
on page
72
The following table describes DIP switches.
Wiring
‑72‑
Table 6–4 DIP switch definitions
Name Function
S1 ON: Termination resistor connected for RS485/CAN communication
OFF: Termination resistor disconnected for RS485/CAN communication
S2 ON: Termination resistor connected for RS485/CAN communication
OFF: Termination resistor disconnected for RS485/CAN communication
S3 ON: AI1 supports the current input mode (impedance: 500 Ω).
OFF: AI1 supports the voltage input mode.
S4 NC: OP unconnected
24: OP is connected to the internal 24 V power supply.
Note
● By default, the DIP switch is in the OFF position.
● To connect the termination resistor, S1 and S2 must be set to ON at the same
time.
6.3.2 Wiring Descriptions of Control Circuit Terminals
Precautions
I/O signals include analog input (AI), analog output (AO), digital input (DI), digital output
(DO) and relay output signals. To avoid interference to the I/O signals, separate the I/O
signal cables at least 20 cm away from the main circuit cables (R/S/T cables and U/V/W
cables) and other power cables or power supply cables.
Wiring AI1
Weak analog signals are easy to suffer external interference. Therefore, route the analog
cable away from the interference source and keep the cable length as short as possible
(no longer than 20 m). In applications where the analog signal suffers severe
interference, install a filter capacitor or ferrite core at the analog signal source, as shown
in
"Figure 6–7 Wiring of AI terminals
"
on page 73
.
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.