COTRUST CTH200 Series User Manual

CTH200 Series PLC User Manual
85
【Usage specifications】
 Insulation thermocouple should be used to achieve good immunity from interference
 Use Shielded wire, grounded, as signal line.
 GND terminal must be connect to the ground.
 Short unused channels to eliminate the Break line fault alarm
Table 4-6-2 SM231-7TD/7TF thermocouple PID module specifications
Modules
SM231 4AI×TC PID
SM231 8AI×TC PID
Order No.
CTH2 231-7TD32
CTH2 231-7TF32
Features
Dimension (W×H×D)
71.3 × 96 × 62mm
LED indicator
24VDC indicator: ON=No fault, OFF=no 24VDC power
SF Indicator: ON=Module fault, Flash=Out range or
disconnect, OFF=No fault
Power supply
+5VDC current
87mA
L+
34mA
39mA
L+ coil voltage range
20.4~28.8VDC
Power
1.8W
Input
Type
Float TC
Range
K-type TC
Counts
4
8
Isolation
Field to Logic
500VAC
Field to 24VDC
500VAC
24VDC to Logic
500VAC
Common mode input
range (input channel to
input channel)
120VAC
Common mode
rejection
>120dB@120VAC
Sampling features
Temperature resolution
0.1℃/0.1℉
Voltage resolution
15bits + sign bit
Transfer principle
Σ-Δ
Module update time: All
channels
405ms
825ms
Wire length to sensor
Max 100m
Conductor loop
resistance
Max 100Ω
Suppression of
interference
85dB@ 50Hz/60Hz/400Hz
Data word format
Voltage: -27648~+27648
Input impedance
>1MΩ
Max. Input voltage
30VDC

COTRUST CTH200 Series Specifications

General

Brand	COTRUST
Model	CTH200 Series
Category	Controller
Language	English