Electrical Design
‑62‑
Outline Drawing Terminal Type Terminal
Code
Terminal Function Specifications
Digital input DI1 DI terminal 1 DI1 to DI4 are ordinary DIs. They do
no support for high‑speed pulse
input. Their input frequency is lower
than 100 Hz. Photocoupler isolation
is supported and they are
compatible with bipolar input. The
input impedance is 3.3 kΩ and the
effective level input voltage range is
15 V to 30 V.
DI2 DI terminal 2
DI3 DI terminal 3
DI4 DI terminal 4
Digital input and
output
DIO1 DI/DO terminal 1 DIO1 to DIO4 are general
multifunction input/output
terminals, which can be set by
parameters.
When they are used as DI terminals,
their specifications are consistent
with that of DI1 to DI4.
When they are used as DO
terminals, they provide the common
collector open‑drain output
function and cannot be directly
connected to the power supply. A
pull‑up resistor is required for
connecting them to the power
supply and the impedance is
determined by the load
requirements. The maximum output
capacity is 24 VDC/50 mA.
DIO2 DI/DO terminal 2
DIO3 DI/DO terminal 3
DIO4 DI/DO terminal 4
RS485
communication
terminal
485+ RS485 positive
communication signal
The maximum baud rate is 115200
bps. Up to 128 nodes can be
connected. The Modbus
communication protocol is
supported.
The daisy chain mode is required for
wiring.
485‑ RS485 negative
communication signal
GND Communication signal
ground
Table 3–15 Signal definitions of relay terminals (CN2)
Outline Drawing Terminal Type Terminal
Code
Terminal Function Specifications
Relay output TA Common terminal TA‑TB: NC
TA‑TC: NO
Contact capacity:
30 VDC/3 A
250 VAC/3 A (Cosφ = 0.4)
TB NC terminal
TC NO terminal
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