COTRUST CTH200 Series User Manual

Technical Specifications
80
Input impedance
Voltage input>10MΩ; Current input=250Ω; NTC input>10MΩ
Max. Input voltage
30VDC(detect), 5VDC(source)
Input Filter attenuation
-3dB@21kHz
Basic error
0.1％FS(resistance)
Repeatability
0.05％FS
Addressing method
AIW
Application Environment
■ Temperature: horizontal installation 0-55℃, vertical installation 0-45℃
■ Humidity: 95% Non - Condensing
Usage
SM231 NTC can be used for expanding CTH200 CPU analog measurement, connecting with
CPU by Bus interface.
Table 4-5-14 SM231-7ND module configuration
Input type
SW1
SW2
SW3
SW4
SW5
Valid for channel 1 and 2
Valid for channel 3 and 4
100ΩPT0.003850(default)
0
0
0
－
－
100ΩPT0.003920
0
0
1
－
－
100ΩPT0.00385055
0
1
0
－
－
100ΩPT0.003916
0
1
1
－
－
100ΩPT0.003902
1
0
0
－
－
NTC: R25=10kΩ, B=3950K
1
0
1
－
－
NTC :R25=10kΩ, B=3435K
1
1
0
－
－
Forbidden
1
1
1
－
－
0－5V
－
－
－
0
0
0－20mA
－
－
－
0
0
0－10V
－
－
－
0
1
-10V－10V
－
－
－
1
0
-5V－5V
－
－
－
1
1
Table 4-5-14 SM231-7ND module configuration
SW6
Calibration direction
SW7
Scale Unit
SW8
Wiring scheme
0
Positive (+3276.7°)
0
Celsius (℃)
0
3-wire
1
Negative (-3276.8°)
1
Fahrenheit (℉)
1
2-wire or 4-wire
【Startup Steps】
1) Wiring the L+ and M terminals with 24VDC power supply.
2) Connect the module to CPU via the I/O expansion bus.
3) Connect the CPU power supply and communication port.
4) Connect the input signals according to wiring diagram, leave terminals of unused channel
dangling, ground the EARTH terminal according to Grounding specification (single-point ground).

COTRUST CTH200 Series Specifications

General

Brand	COTRUST
Model	CTH200 Series
Category	Controller
Language	English