－
11
－
VP-420/421 Specifications Rev5.0
7-3. Wiring Method
7-3-1. Wiring Method of VP-420
Connect VP-420 according to the example shown in Fig.7-2 below.
Fig.7-2 Example of Wiring Method about VP-420
Note
(1) Confirm “+” and “–” polarity first. If the polarity is opposite, sensor cannot operate.
(2) Do not supply power voltage more than the specification. It will cause breakdown
on pickup.
(3) Shield wire (Silver) connect on minus side of power supply.
(4) In case of using any receiver such as logger with 1-
5V, connect 250Ω resistance
with it in parallel.
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モ
Fig.7-2 is just an example of wiring. For details on connecting pickup to the receiver
(Logger/PLC/DCS etc.), refer to the instruction manual of the receiver.
Also, check the instruction manual of the receiver for how to connect pickup to the
receiver that supports connection of the 2-wire transmitter.
We cannot provide individual answers regarding how to connect to the receiver.
Power Supply
15
to
30
DC
＋
White
Silver
－
4-
20m
A Logger
－
Black
＋
PLC/DCS etc.
Ex.
1 Case of 4-
20mADC Logger
VP-
420
Power Supply
1
5 to 30Ｖ
DC
White
Silver
1-
5V
Logger
＋
－
Black
＋
－
250Ω
PLC/DCS etc.
Ex.2
Case of 1-
5VDC Logger
