Smart Robot Servo
SRS Basics
The REV Robotics Smart Robot Servo (SRS) (REV-41-1097) is a configurable metal-geared servo that takes the guesswork out of aligning and adjusting servo based mechanisms. One SRS can be used as a standard angular servo, a custom angular servo, and a continuous rotation servo by simply changing its settings.
Product Specifications
The REV Robotics Smart Robot Servo includes the following features:
Default operation
270° motion over full input pulse range
Metal gears
Smart features
Programmable with REV SRS Programmer (REV-31-1108)
Servo Limit Mode
Set right and left angular limits
SRS will not move past limits
Continuous Mode
SRS spins continuously
Speed and direction set by input pulse
Mechanical Specifications
Stall torque (at 6V) | 13.5 kg-cm / 187.8 oz-in |
Speed (at 6V) | 0.13s/60º |
Maximum angular range | 270º |
Gear Material | Brass |
Spline Type | 25T |
Dimensions | 40.2mm x 20.0mm x 38.0mm |
Weight | 2.05oz. |
Electrical Specifications
Min | Nominal | Max | |
Voltage Rating | 4.8V | 6.0V | 7.4V |
Stall Current (at 6V) | 2.0A |
Input Pulse:
Min: 500μs
Center: 1500μs
Max: 2500μs
Kit Contents
The REV Robotics SRS comes with the following:
REV Smart Robot Servo
Servo horn (arm) assortment
Servo horn mounting hardware
Is a servo the right actuator for your mechanism? See the Choosing an Actuator section to learn more.
Operating Modes
Out of the box, the SRS operates as a 270° servo. However, the REV SRS Programmer can reconfigure the SRS to set angular limits or switch it into a continuous rotation mode.
For more information on how to use the SRS programmer to change the servo modes see the SRS Programmer section
Default Operation
The default range for the SRS is 270°. This range is mapped to an input pulse range of 500μs to 2500μs with 1500μs as the center point. The image below describes the pulse-to-angle relationship.
Continuous Rotation
The SRS can be configured with the SRS Programmer to operate in a continuous rotation mode. In this mode, the same input pulse range is mapped to direction and speed. The table below lists the pulse mapping for direction and speed.
Angular Limits
The SRS can be easily configured with the SRS Programmer to limit right and left motion at two user-defined angles. Input pulses that occur past the limits will be ignored and the SRS will hold the limit angle. Any two angles can be set as limits as long as the left limit is left of the center dead band and the right limit is to the right of the center dead band. The table below shows the valid regions for left and right limits.
Once valid limits are programmed, the SRS will ignore any pulses that exceed the limits and hold the limit angle. For example, the image below exhibits what would happen if a left limit of -30° and a right limit of +60° was set.
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