This is the description characteristics for the TM5SEAISG electronic module. See also Environmental Characteristics
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FIRE HAZARD |
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Use only the correct wire sizes for the maximum current capacity of the I/O channels and power supplies. |
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Failure to follow these instructions will result in death or serious injury. |
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UNINTENDED EQUIPMENT OPERATION |
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Do not exceed any of the rated values specified in the environmental and electrical characteristics tables. |
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Failure to follow these instructions can result in death, serious injury, or equipment damage. |
The table below describes the general characteristics of the TM5SEAISG electronic module:
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General Characteristics |
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Rated power supply voltage Power supply source |
24 Vdc Connected to the 24 Vdc I/O power segment |
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Power supply range |
20.4...28.8 Vdc |
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24 Vdc I/O segment current draw |
52 mA |
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TM5 Bus 5 Vdc current draw |
2 mA |
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Power dissipation |
1.25 W max. |
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Weight |
25 g (0.9 oz) |
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ID code for firmware update |
7390 dec |
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Input Characteristics of Analog Channels
The table describes the input characteristics of analog channels of the TM5SEAISG electronic module:
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Input Characteristics |
Full-bridge Strain Gauge |
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Number of inputs |
1 |
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Bridge factor |
+/- 2...+/- 256 mV/Vdc configurable using ConfigOutput00 ADC configuration register. Refer to Expansion Bus I/O Mapping Tab. |
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Input type |
Differential |
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Input current |
690 nA |
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Sensor operating range |
85...5000 Ω |
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Conversion time |
Depends on the data output rate |
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Data output rate |
2.5...7500 samples per second, configured by software |
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Conversion mode |
Sigma delta type |
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Input filter |
Third order / attenuation 60 dB / cut-off frequency 5 kHz |
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Input tolerance - temperature drift |
10 ppm |
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Digital resolution |
24 bits |
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Resolution |
Refer to effective resolution of the strain gauge value in bits |
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Wire |
Shielded, twisted pair cable length < 30 m (98.42 ft)1 |
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Input protection |
Protection against wiring with 24 Vdc supply voltage |
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(1) The shielded, twisted pair cable should be as short as possible and run separately to the sensor (isolated from load circuit) without intermediate terminals. |
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Full-bridge Strain Gauge Supply Characteristics
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Full-bridge Supply Characteristics |
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Number of full-bridge |
4 max. |
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Wiring type |
4 or 6 wires |
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Supply voltage |
5.5 Vdc |
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Supply current |
65 mA max. |
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Voltage drop |
0.2 Vdc max. at 65 mA |
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Supply protection |
Overload short-circuit |
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Isolation |
Between input and internal bus |
See note 1 |
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Between supply and internal bus |
See note 1 |
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1 The isolation of the electronic module is 500 Vac RMS between the electronics powered by the TM5 bus and those powered by 24 Vdc I/O power segment connected to the module. In practice, the TM5 electronic module is installed in the bus base, and there is a bridge between the TM5 power bus and the 24 Vdc I/O power segment. The two power circuits reference the same functional ground (FE) through specific components designed to reduce effects of electromagnetic interference. These components are rated at 30 Vdc or 60 Vdc. This effectively reduces isolation of the entire system from the 500 Vac RMS.
