IDEC SmartAXIS FT9Z-1A01, Руководство пользователя

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S
MART
AXIS P
RO
/ L
ITE
U
SER
'
S
M
ANUAL
FT9Y-B1378 3-7
3: I
NSTALLATION AND
W
IRING
Input/Output Wiring
This section describes SmartAXIS input/output device wiring.
Precautions for I/O Device Wiring
Input Terminal Wiring
When wiring input devices, separate wiring from power, output, and motor lines.
When using duct for wiring, ground piping using a D-type (type 3) ground.
When wiring DC power type models, keep wiring away from AC power lines.
When using shielded cable for wiring, ground the shield on the SmartAXIS side using a D-type (type 3) ground.
Wire input devices you want to connect to the SmartAXIS according to type as shown below.
DC Power Type
Digital Input – Sink Input
• Contact Output
External Power
Input Terminal (I*)
SmartAXIS
SmartAXIS
0V Power Supply
Terminal (-)
0V Power Supply
Terminal (-)
• PNP Output
External Power
Input Terminal (I*)
Output
Sensor Output
- +
- +
Internal Circuit
External Power
Input Terminal (I*)
SmartAXIS
0V Power Supply
Terminal (-)
Output
+
Internal Circuit
• NPN Output
-
External resistance
The above diagram (NPN output) is a reference wiring diagram for connecting an input device with NPN
output to the SmartAXIS sink input. By installing an external resistor, an input device with NPN output can be
connected. When installing an external resistor, note the following points when wiring and checking the
operation.

When the external power supply voltage is 24V DC, an external resistor with a resistance value of 1kΩ and a rated voltage
of 2W or more (safety factor more than 3 times) is recommended. In this case, the current flowing through the external
resistor is as follows.

When NPN output of the input device is off: Approximately 3.8 mA

When the NPN output of the input device is on: Approximately 24.0 mA
For the digital input internal circuit (sink input), see "Digital Input Internal Circuits" on page 2-12.

The on/off operation of the NPN output of the input device and the sink input of SmartAXIS is reversed.

When the NPN output of the input device is off, the sink input of SmartAXIS is on.

When the NPN output of the input device is on, the sink input of SmartAXIS is off.
When the external power supply of the input device is off, the
sink input of SmartAXIS
is on.
Caution