4890 Controller
Servopulser Control Unit
High-Performance Controller Designed for Ultimate Operator Ease
The 4890 32-bit digital controller incorporates a high-speed DSP, high-resolution A/D converter and high-performance processor. Its features include 2-degree-of-freedom PID control, auto-tuning and realtime gain adjustment developed especially for testing systems. The combination of these features both heighten control precision and dramatically improve ease of use compared with existing controller models. A variety of tests can be easily performed by using the Windows-based GLUON software which offers comprehensive customization wizards.
[Features]
- 2-degree-of-freedom high-precision/high-response control
- Auto-tuning and realtime gain adjustment functions
- Acquisition of high-resolution (20-bit) sampling data simultaneously on 8 channels
- Virtual transducer-based logical operation control
- Automatic sensor recognition and calibration
- Highly accurate measurement control based on rangeless transducer and linearized sensor output
- Easy-to-use Windows-based GLUON software
- Mail notification function
[Specifications]
| Type | 4890 |
| Logical operation resolution | 32 bits |
| Loading waveform | Sine, haversine, triangular, hold rectangular, and combinations of these |
| Special waveforms | Slow start/stop, sweep, arbitrary |
| Frequency | 0.00001 to 500 Hz |
| Ramp speed | 1×10-9 to 100 full scale/sec |
| Hold time | 0.01 to 1×109 sec |
| Cycle counter | 1010 |
| Measurement amplifier type | Test force/displacement (standard accessory)/strain/elongation/voltage inputs * 6 additional optional amplifiers can be added. |
| Measurement amplifier functions | Rangeless, auto-zero function, automatic recognition and calibration functions |
| Measured value display | Instantaneous values or upper/lower limit peaks values are displayed in engineering units |
| Number of control channels | Max. 8 |
| Control functions | 2-degree-of-freedom PID control Auto-tuning function Realtime gain adjustment function Logical operation control functions (virtual transducer) Automatic amplitude/mean-value correction function (AGC) Shockless control switching function Function to prevent overloading during specimen clamping (sub controller function) |
| Alarm functions | Excessive amplitude detection, low amplitude detection, breakage sensitivity, breakage detection hydraulic unit alarm, preset count, external alarm I/O |
| Software | GLUON software package for Windows |
| Size (W × D × H) | 205 × 483 × 466 mm (excluding protrusions) |
| Power requirements | 100 ±10 V 50 Hz/60 Hz, 1.0 kVA single-phase |
* Appearance and specifications are subject to change without notice.
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