Delta AH500 series, Hardware Operation Manual

Page: 241 / 681

A H 5 0 0 H a r d w a r e a n d O p e r a t i o n M a n u a l
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4.10 Wiring Temperature Measurement Modules
4.10.1 Wiring AH04PT-5A
Shielded c able * 1
1.53 mA
(Ni1 00P t1 00 ,
Re sistor )/
204 .8uA
(Pt1 000 )*3
,
AG
A DC
AG
I NA
A G
CH0
0~3 0 0
Ni 10 0 /Ni 10 0 0
P t10 0 /P t10 0 0
Ω
O 0 +
I0+
I0-
O0 -
FG
2-Wir e
CH1
0 ~3 0 0
N i1 0 0/ Ni1 0 0 0
P t1 0 0/ Pt1 0 0 0
Ω
O 1 +
I 1+
I1-
O1 -
FG
3 -Wir e
CH3
O 3 +
I 3+
I3-
O3 -
FG
4 -Wir e
Ni 1 00 /Ni 1 00 0
P t1 00 /P t1 00 0 *2
Shielded c able * 1
Shielded c able * 1
*1. The cable connected to the input terminal should be the cable or the shielded twisted pair cable which can
be connected to an Ni100/Ni1000/Pt100/Pt1000 sensor, and should be kept separate from other power
cables and cables which generate noise. Please use a three-wire temperature sensor. If users want to use
a two-wire temperature sensor, O
n + and I n + must be short-circuited, and O n - and I n - must be short-
circuited. ( n is in the range of 0 to 3.)
*2. If users want to measure resistance in the range of
0 Ω
to
300 Ω, they can use a two
-wire or three-wire
sensor instead of a four-wire sensor.
*3. Users need to select an appropriate sensor. If an Ni100 temperature sensor, a Pt100 temperature sensor,
or a resistance sensor is used, the internal excitation current is 1.53 mA. If an Ni1000 temperature sensor,
or a Pt1000 temperature sensor is
used, the internal excitation current is 204.8 μA.
◆
Note: use cables with the same length (less than 200 m) and use terminal resistors of less than 20 ohm.