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AB 1747-CP3 0.3 Watts at 5 Volts DC and 0.5 Watts at 2 Volts DC
slot 0 of the SLC 500 chassis
Product information AB 1747-CP3 :
It provides all SLC 500 processors with a digitally converted
thermocouple or millivolt (mV) analog data, received and stored in
its image table. It does not require any external power supply as
it receives 5 Volts DC and 24 Volts DC power from the SLC 500 power
supply through its backplane.
It has two cold-junction compensation (CJC) sensors instead of
offset voltages to retain thermocouple input signal accuracy. Block
transfers are required by this module in a remote I/O
configuration. It interfaces to thermocouple types J, K, T, E, R,
S, B, and N, and accepts direct +/-50 mV and +/-100 mV analog input
signals. The 1746-NT4 module auto calibrates at power-up and
whenever a channel is enabled. It has 5 green LED status
indicators, one for module status and one for each of the four
channels.
The 1746-NT4 module has 4 backplane isolated input channels. It has
a backplane current consumption of 60 mA at 5 Volts DC and 40 mA at
24 Volts DC. It has a backplane power consumption of 0.3 Watts at 5
Volts DC and 0.5 Watts at 2 Volts DC, a 16-bit converter
resolution, and a 12 to 300 millisecond Step response at 95%. It
has a bandwidth of 2.62 - 65.5 Hertz and a 26 millisecond - 1.2
second update period and uses sigma-delta modulation for A/D
conversion. It can be installed in any slot except slot 0 of the
SLC 500 chassis. It uses two wires per terminal with a maximum wire
size of 2.5 millimeters (14 AWG) and 25 ohms maximum cable
impedance. For Thermocouple inputs, use shielded twisted
thermocouple extension wire; for mV inputs, Belden 8761 or
equivalent wire must be used.
The 1746-NT4 is an Allen-Bradley module used with Thermocouple
sensors and mV signals. This module belongs to analog input module
category which belongs to the SLC 500 product family.
It features Eight (8) Thermocouple inputs with each channel
supporting a wide variety of Thermocouple types such as J, K, T, E,
S, R, B and N. Compatible mV signals include +/- 50 mV and +/- 100
mV. Each input channel is built with broken sensor detection may
indicate a shorted or open circuit. There are configurable settings
when an open circuit is detected such as Zero, Upscale and
Downscale. When Zero is configured, the module’s reading is forced
to Zero (0). When set to Downscale, the module’s reading is forced
to the lowest reading while Upscale forces the reading to the
maximum reading. These settings are helpful as it may be used to
quickly diagnose the state of each channel aside from the visible
LED indicators for each channel. The fault reaction settings must
be based on the fail-safe operation of the process.
| IC694MDL230 | 120 VAC Isolated Input (8 Points) |
| IC694MDL231 | 240 VAC Isolated Input (8 Points) |
| IC694MDL240 | 120 VAC Input (16 Points) |
| IC694MDL241 | 24 VAC/VDC Input (16 Points) |
| IC694MDL250 | 120 VAC Isolated Input (16 Points) |
| IC694MDL260 | 120 VAC Input (32 Points)** |
| IC694MDL632 | 125 VDC Input (8 Points) |
| IC694MDL634 | 24 VDC Input, Neg/Pos Logic (8 Points) |
| IC694MDL645 | 24 VDC Input, Neg/Pos Logic (16 Points) |
| IC694MDL646 | 24 VDC Input, Neg/Pos Logic, 1 msec Filter (16 Points) |
| IC694MDL654 | 5/12 VDC (TTL) Input, Neg/Pos Logic, (32 Points) |
| IC694MDL655 | 24 VDC Input, Neg/Pos Logic, 1 ms, (32 Points) |
| IC694MDL660 | 24 VDC Input (32 Points)** |
| IC694ACC300 | Input Simulator Module (8 Points) |
Our brand:
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