OM5-DT
General Purpose Input Modules, with DC Excitation
FEATURES
●INTERFACES TO DC DISPLACEMENT TRANSDUCERS AND OTHER DEVICES REQUIRING A STABLE DC SUPPLY
●HIGH LEVEL VOLTAGE OUTPUTS
●1500Vrms TRANSFORMER ISOLATION
●ANSI/IEEE
●INPUT PROTECTED TO 240VAC CONTINUOUS
●FULLY ISOLATED EXCITATION SUPPLY
●100dB CMR
●1KHz SIGNAL BANDWIDTH
●±0.10% ACCURACY
●±0.02% LINEARITY
●±20∝V/°C DRIFT
●CSA CERTIFIED, FM APPROVED, CE COMPLIANT
●MIX AND MATCH OM5 TYPES ON BACKPANEL
DESCRIPTION
Each
controlled, which allows these modules to share a common analog bus without the requirement of external multiplexers.
The modules are designed with a completely isolated computer side circuit which can be floated to ±50V from Power Common, pin 16. This complete isolation means that no connection is required between I/O Common and Power Common for proper operation of the output switch. If desired, the output switch can be turned on continuously by simply connecting pin 22, the
The
Transducer excitation is provided from the module by a very stable 10V source. The excitation supply is fully isolated, allowing the amplifier inputs to operate over the full range of the excitation voltage. This feature offers significant flexibility in real world applications. Eight full scale input ranges are provided, from ±1V to ±10V, producing ±5V full scale output.
The input signal is processed through a
Special input circuits provide protection of the signal inputs and the isolated excitation supply up to 240VAC.
| +EXC |
| 4 |
| LPF | Isochopper™ |
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| 20 | ||
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| 4 |
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| LPF | ||
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| +In | 6 | Surge |
| Amplifier |
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DC LVDT |
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| 3 |
| Suppression |
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or Other |
| 5 | and |
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| 19 | |
Transducer |
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| Protection |
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| +V | I/O Common | ||||
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| 2 |
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| Isolated |
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| 3 |
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| Excitation | Isolated | 22 | ||
| 1 |
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| Source | RD EN\ | |||
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| Power |
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| Term Block |
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| 1 |
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| NC |
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| 2 |
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| NC |
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| 17 |
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| +V |
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| Isolated |
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| +5V | |
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| Power |
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| Oscillator |
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| Power |
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| 16 | |
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| Power |
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| Common |
FIGURE 1. OM5-DT Block Diagram.
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