BrainCo Revo 2 FAQ
What is the function of the button on the back of the hand?
- Long press: Restores factory settings.
- Short press: Triggers automatic calibration.
How to switch between CAN FD and Modbus-RTU protocols on the Revo 2 Basic Edition? Where is the DIP switch?
The DIP switch is located beneath the wrist. You will need to remove the wrist cover to access it. Switching it to the CAN FD side enables the CAN FD protocol; switching it to the Modbus-RTU side enables the Modbus-RTU protocol.
Do the Revo 2 Pro and Touch editions support EtherCAT CoE and PDO control?
Yes, they are supported.
Why is the backlight on the Revo 2 Basic Edition flashing slowly in green?
The designated power supply voltage for the Revo 2 Basic Edition is 12-28V. If you encounter this issue, we recommend increasing the supply voltage to 24V.
What is the communication frequency of the Revo 2 dexterous hand?
The communication frequency of the second-generation hands can readily exceed 100 Hz. The maximum communication frequency for RS485/CAN FD can reach 500 Hz, while EtherCAT can reach 1 kHz.
What is the linear measurement range of the capacitive tactile sensor?
Both normal force and tangential force measurements can reach up to 25 N. Within its linear range, the fully saturated force exceeds 25 N, with a linearity error of less than 5%.
When using the parameter calibration function, does it only remove the zero offset or does it also adjust the gain?
Triggering parameter calibration only ensures that the raw values collected by the sensor fall within a usable baseline range. It does not affect the offset or the gain.
Has internal temperature compensation been applied to the force readings?
No, there is currently no internal temperature compensation.
Is the returned force value filtered or averaged in the firmware, or is it the raw sample?
It is the raw, unfiltered sample.
What is the internal sampling rate of the tactile sensor?
The sampling rate is 70 Hz.
What are the current consumption parameters of the Revo 2 dexterous hand?
- Basic Edition (at 24V): Standby current is 65 mA, no-load average current (with all five fingers flexing) is 350 mA, and maximum peak current is 4.6 A.
- Pro/Touch Edition (at 24V): Standby current is 115 mA, no-load average current (with all five fingers flexing) is 390 mA, and maximum peak current is 4.65 A.
What are the units for position, speed, and current?
In physical unit mode:
- Position: 0.1 degrees
- Speed: 1 degree/second
- Current: mA
What type of motor sensor is used? Does one controller drive all six motors?
We use magnetic encoders. Yes, a single integrated controller drives all six motors.
Does the dexterous hand send heartbeat messages?
No, heartbeat messages are not implemented.
RS485 is a half-duplex protocol. Will there be access conflict issues when fetching data?
The RS485 bus operates in half-duplex mode, meaning only one device can transmit data at any given time. Our protocol design fully adheres to standard Modbus-RTU practices using a master-slave architecture. The communication process is exclusively initiated and controlled by the master station, eliminating any risk of access conflicts.