Absolute Process Instruments API APD 7580 D _ Field Ranged Frequency to Analog Process Signal Isolated Transmitter, 4-20 mA Input, 9-30 VDC Power
Cecomp Electronics, APD 7580 D, Frequency to DC Isolated Signal Conditioner, 16 Configurable Outputs, 9-30 VDC, 10-32 VAC Power
Features:
- 1 Minute Setup for 30 Input & 18 Output Ranges
- External Switches & Tables for Range Selection
- Zero and Span Output Calibration Potentiometers
- Full 1200 V Input/Output/Power Isolation
- Input and Output LoopTracker® LEDs
- Output Test Button
- Built-In Loop Power Supply for Sink/Source Output
Applications:
- Monitor and Control Motor or Line Speed
- Convert Speed and Frequency Signals
The APD 7580 D accepts a frequency input and provides an optically isolated DC voltage or current output that is linearly related to the input.
Common applications include frequency to DC conversions from frequency output type devices such as rotary encoders, magnetic pick-ups, proximity sensors, variable speed drives, and flow meters. For PLCs that do not have analog outputs, often the pulse rate of a discreet output can be programmed to vary. By connecting the APD 7580 D to this output, a proportional analog signal can be generated. A 15 VDC power supply is provided to power the sensor input, if required.
Full 3-way isolation (input, output, power) makes this module useful for ground loop elimination, common mode signal rejection or noise pickup reduction.
The APD 7580 D input and output can be field-configured via external rotary and slide switches. Common ranges are on the module label. Many additional combinations are possible. Consult the factory for assistance with special ranges.
Sink/Source Versatility
For maximum versatility the output can be selectively wired for sinking (unpowered) or sourcing (powered) milliamp output. The 20 VDC loop excitation supply can be used to power a milliamp current loop if required. The output can also be wired for an externally powered loop.
LoopTracker
API exclusive features include two LoopTracker LEDs (green for input, red for output) that vary in intensity with changes in the process input and output signals. These provide a quick visual picture of your process loop at all times and can greatly aid in saving time during initial startup and/or troubleshooting.
Output Test
An API exclusive feature includes the test button to provide a fixed output (independent of the input) when held depressed. The test output level is potentiometer adjustable from 0 to 100% of output span. The output test button greatly aids in saving time during initial startup and/or troubleshooting.
Specifications Table:
| Input | Field configurable 0-100 Hz to 0-30 kHz |
| Outputs | Field configurable voltage or milliamp ranges (0-1 V to 0-10 VDC, ±5 VDC, ±10 VDC, 0-2 mA to 20 mADC) |
| Frequency Input Ranges |
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| Input Impedance |
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| Input Sensitivity/Hysteresis | Multi-turn potentiometer for sensitivity adjustment
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| Input Amplitude Range |
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| Input Power Supply |
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| DC Output Ranges | Switch selectable, field rangeable
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| Output Calibration | Multi-turn zero and span potentiometers
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| Output Loop Power Supply |
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| Output Test | Front momentary button sets output to test level. Potentiometer adjustable 0-100% of span |
| Output Ripple and Noise | Less than 10 mVRMS ripple and noise |
| Linearity | Better than ±0.8% of span |
| Ambient Temperature Range and Stability |
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| Isolation |
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| Installation Environment |
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| Connectors | Four 4-terminal removable connectors, 14 AWG max wire size |
| Power | 9-30 VDC or 10-32 VAC 50/60 Hz, 2 W maximum |
