Real-time measurement of angle and speed by branching resolver signal lines in a state-controlled motor systems.
It is now possible to branch resolver signals during driving control states to measure motor angle and speed. These signals can also be utilized as reference signals for various analyses. Simultaneously measure and analyze the correlation with noise and vibrations. Utilize for verification of control sequences and control mapping. Enable in-depth benchmarking of driving control.• Branches resolver signals during control to simultaneously output ABZ pulses and analog signals proportional to angle and speed. • Monitors and outputs excitation, sin, and cos signals. • Supports resolver gear ratios from 1time to 20 times. • Accommodates rotational speeds from 0 to 60,000 rpm. 
Branch detection of resolver signals Typical resolver signals are floating signals, so simply branching them with passive probes or clips may cause insufficient excitation current due to an increase in current paths, and noise inflow due to the GND connection of another device, etc. Thus, it will affect the signals and measurement of the existing measuring system and result in the impossibility of measurement. This device with a high impedance detection section will make it possible to branch and measure resolver signals without affecting the existing system.
Branch detection of resolver signals Typical resolver signals are floating signals, so simply branching them with passive probes or clips may cause insufficient excitation current due to an increase in current paths, and noise inflow due to the GND connection of another device, etc. Thus, it will affect the signals and measurement of the existing measuring system and result in the impossibility of measurement. This device with a high impedance detection section will make it possible to branch and measure resolver signals without affecting the existing system.| Resolver | ||
| Type | Amplitude Modulation Type | |
| Multiplication Factor | x1 ~ x20 (arbitrarily settable) | |
| Resolver Signal Input | ||
| Signal Type | Differential or Single-ended | |
| Signal Types | Excitation signal (sine wave), sine modulated excitation signal, cosine modulated signal | |
| Excitation Signal Frequency | 10kHz ~ 20kHz (pulses degrade below 10kHz) | |
| Input Impedance | 200GΩ (max) | |
| Voltage Limit | Excitation Signal | Differential max 40Vp-p |
| Sin, Cos Signal | Differential max 16Vp-p | |
| Resolver Measurement | ||
| Rotation Speed Range (Electrical Angle) | 0 ~ 60000rpm | |
| Angle Resolution (Electrical Angle) | 12bit | |
| Time Delay | 8 ~ 12μs | |
| Filter | 50kHz Low-pass Filter | |
| Input Signal | ||
| Trigger Input (Rising) | Voltage Range | ±10V |
| Threshold | Selectable from ±9.9V | |
| Digital Output | ||
| ABZ Phase Signal | Voltage | 0 ~ 5V |
| Pulse Rate | 12bit/rev (1024 pulses/rev) relative to electrical angle | |
| Analog Output | ||
| Output Update Time | Approx. 10μs | |
| Output Resolution | 16bit | |
| Angle Voltage | Output Voltage | 0 ~ 5V or 0-10V or ±5V or ±10V |
| Angle Scale | 0-360° or ±180° | |
| Speed Voltage | Output Voltage | ±5V or ±10V |
| Speed Scale | 1 ~ 100000 rpm | |
| Monitor Signal | Voltage Range | 0 ~ 5V |
| Output Signal | Excitation, Sin, Cos | |
| General Specifications | ||
| PC Communication | USB (USB-Serial Bridge) | |
| Insulation Specifications | Supply Power-Ground-Analog/Digital Output GND-Resolver GND | |
| Supply Power | DC12V (10 ~ 18V) | |
| Case | EMC-treated Aluminum Case | |
| External Dimensions | W151 × D157 × H98 (including protrusions) | |
| Weight | Approx. 1.1kg | |
| Operating Temperature Range | 0 ~ 40℃ (no condensation) | |
