Delta AH02HC-5A, Hardware Manual

Page: 147 / 229

Chapter 5
OOWiring
5.7 Wiring Temperature Measurement Modules
5.7.1 Wiring AH04PT-5A
1.53 mA (a Ni100
sensor Pt100
sensor, and a
resistor)/204.8uA
(Pt1000)*3
,
Shielded cable*1
0~300
Ni100/Ni1000
Pt100/Pt1000
Ω
0~300
Ni100/Ni1000
Pt100/Pt1000
Ω
Shielded cable*1
Shielded cable*1
2-wire
3-wire
4-wire
AG
ADC
AG
INA
AG
CH0
O0+
I0+
I0-
O0-
FG
CH1
O1+
I1+
I1-
O1-
FG
CH3
O3+
I3+
I3-
O3-
FG
*1. The cables or the shielded twisted pair cables for Ni100/Ni1000/Pt100/Pt1000 temperature
sensors are used, 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
+ have to be short-circuited, and O
n
- and I
n
- have to be
short-circuited. (
n
is within the range between 0 and 3.)
*2. If users want to measure the resistance within the range between 0
Ω
and 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 a Ni100 temperature sensor, a Pt100 sensor, and
a resistance sensor are used, the internal excitation current is 1.53 mA. If a Ni1000 temperature
sensor, and a Pt1000 temperature sensor are used, the internal excitation current is 204.8
μ
A.
5-34