DA 20-30-2515 Volz Servo

DA 20-30-2515 Volz Servo 20 mm, 2o-30 volt; this actuator should only be used when high actuating speeds are needed.

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Description

DA 20-30-2515 Volz Servo 20 mm, 20-30 volt; the DA 20-30-2515 Volz Servo / actuator should only be used when high actuating speeds are needed (as in the tail rotor of a helicopter) and never in applications associated with high continuous loads (such as in undercarriages or wing brakes in winged aircraft).

Optional: ISS gear protection system; increased actuator travel up to 330°; analog position feedback.

 

About DA 20 Servos/Actuators

The housings of our DA 20 series are made of CNC-machined aluminum elements with a bottom case part made of fiberglass-reinforced plastic. The aluminum parts are rugged, torsion-resistant and dissipate internal heat. As with all our actuators, the DA 20 also has a steel gear train and is fully programmable using our programming tool (available as an accessory).

 

About Volz Servos

A servo from Volz excels due to the simplicity of its design while simultaneously maximizing positioning force, reliability and durability. Moreover, a variety of electric interfaces makes it possible, for instance, to monitor the operating condition of the servos by reading out the current consumption, the internal temperature and humidity, etc.

Every actuator compromises a DC motor, a gear train and control electronics governed by microprocessors with integrated position feedback. These are electromechanical servo units that precisely position a radial output drive.

Depending on the type of actuator, the maximum travel in the standard configuration varies between 90° and 170°. Versions with larger travel of up to 330° or “Multiturn” versions can be provided on request.

 

About Volz

Founded in 1983, Volz Servos began designing, manufacturing and marketing exclusively electro mechanical actuators/servos worldwide. Volz has developed a product range that meets most customer requirements concerning maximized torque, speed, efficiency, reliability, and durability at minimized volume/weight, component and development costs.  Volz has a reputation for being experts in the market of compact, highly efficient actuators/servos.

Operating Data

Supply Voltage (rated) 28 V DC
Supply Voltage Range 20…30 V DC
Standby Current at rated voltage < 0.01 A
Rated Current at rated voltage 0.3 A
Peak Current at rated voltage 0.6 A
Rated Torque at rated voltage 50 Ncm (71 ozf-in)
Peak Torque at rated voltage 120 Ncm (170 ozf-in)
No Load Speed at rated voltage 520°/s
Rated Speed at rated torque 400°/s
Default Travel Angle ±45° = 90° total travel
Max. Standard Travel Angle ±85° = 170° total travel
Extended Travel Angle (optional) ±165°=330° total travel
Backlash (mechanical) < 0.5°
Position Error under Temperature < ±1.0°
Operating Temperature -30°C … +70°C (-22°F…+158°F)
Storage Temperature -35°C…+80°C (-31°F…+176°F)

 

Command Signal

Signal Voltage Levels TTL-Level HIGH: min. 2.2V; max 5.0V
Signal Voltage Levels TTL-Level LOW: min 0.0V; max 0.8V
Frame Rate 7…20 ms
Valid Pulse Lengths 0.8…2.2 ms
Pulse Length for Position Left/Center/Right 1.0/1.5/2.0 ms
Resolution <1us

 

Material & Protective Features

Case Aluminum Plastic Base
Splash Water Resistance IP 51
Case Surface Treatment not available
Salt Water Resistance not available
EMI / RFI Shielding not available
Motor Brushed DC Motor
Gear Set Hardened Steel
Position Sensor Precision Potentiometer
ISS Gear Protection System Optional
Position Feedback Optional
Extended Travel Angle Optional

 

Dimensions

Case Dimensions 41.6 mm x 46.1 mm x 20.7 mm ±0.2 mm (1.638 in x 1.815 in x 0.815 in ±0.008in)
Weight 88g (3.1 oz) ±10%

 

ELECTRICAL CONNECTION OPTIONS DA 20.__.25__._.X._
Standard Connector Leads length 240mm
Manufacturer
Type Similar to FCI Mini-PV 65039-034LF
Mating Standard PCB-Header 2.54mm (0.1in) Pitch
Pin Assignment
Orange SIG Command Signal
Red +V DC Supply Voltage<
Brown GND Supply Ground / Signal Ground

 

ELECTRICAL CONNECTION OPTIONS DA 20.__.25__._.P._
Standard Connector Leads length 240mm
Manufacturer
Type Similar to FCI Mini-PV 65039-034LF
Mating Standard PCB-Header 2.54mm (0.1in) Pitch
Pin Assignment
Orange SIG Command Signal
Red +V DC Supply Voltage
Brown GND Supply Ground / Signal Ground
Yellow Pos FB Position Feedback