Configured for shaft relative vibration monitoring in AMS 6500 Machinery Health System racks, the Emerson A6110 (A6110 Dual-Channel Vibration Monitoring Card) provides direct physical/electrical execution.
| Parameter | Specification |
| Model | A6110 |
| Brand | Emerson Automation Solutions (EPRO Division) |
| Origin | Germany |
| Weight | 0.45 kg |
| Dimensions | 1-slot, 3U plug-in architecture for standard AMS 6500 chassis |
| Operating Temp | -40 to +70 deg C |
| Power Consumption | 6 W typical (10 W maximum) via AMS 6500 backplane |
| Monitoring Channels | 2 independent channels (shaft relative vibration) |
| Sensor Compatibility | Eddy-current proximity probes (PR6422, PR6423, PR6424, PR6425) |
| Input Signal Range | 0 to -22 VDC differential |
| Input Impedance | Greater than 100 kOhm |
| Galvanic Isolation | 1500 VDC channel-to-channel / 2500 VDC channel-to-backplane |
| Measurement Accuracy | Plus or minus 0.25% of full scale |
The module incorporates full channel-to-channel isolation measured at 1500 VDC to prevent earth ground loops from introducing signal errors into parallel monitoring pathways. Raw differential signals from eddy-current probes are processed internally to drive analog 0/4-20 mA or 0-10 V outputs proportional to peak-to-peak shaft displacement, zero-to-peak amplitude, RMS levels, or Smax orbital calculations. While the standard analog outputs are mapped directly to external DCS parameters or plant indicators, the channel-to-backplane isolation barriers ensure that high-frequency electronic noise does not migrate from the field wiring terminals into the primary processing logic of the AMS 6500 chassis.
Q: Does the A6110 module accommodate live hot-swap insertion and removal within an operational rack?
A: Yes. The chassis backplane interface allows hot-swap card substitution without disrupting adjacent channels or powering down the entire machinery protection rack, provided the software bypass configurations are engaged first to prevent accidental trip execution.
Q: How is the low-frequency boundary configured for specific rotor speed profiles?
A: The internal firmware parameters allow for a user-selectable low-cut frequency limit set at either 1 Hz or 5 Hz, establishing proper calibration bounds based on the turning gear and baseline operational RPM profiles of the monitored machine train.
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