Futaba S9254 Heli Digital High Torque/Speed Servo
This is the Futaba S9254 Digital Coreless High Torque, High Speed Helicopter Gyro Servo with J Connector.
This servo can produce high-current draw from your batteries. If using NiMH or LiPo batteries, make sure they are capable of delivering sufficient amps.
Features:
Coreless motor for reduced weight and high-speed response
Digitally enhanced microprocessors cut in half the response time from transmitter input to servo reaction
Dual ball bearing gear train
Dust and water resistant-not water proof
Nylon gears
Black plastic case
Specification:
Control System: +Pulse Width Control 1520usec Neutral
Required Pulse: 3-5 Volt Peak to Peak Square Wave
Operating Voltage: 4.8 Volts Only
Operating Temperature Range: -20 to +60 Degree C
Operating Speed (4.8V): 0.08sec/60 degrees at no load
Stall Torque (4.8V): 28 oz/in. (2.0kg.cm)
Operating Angle: 45 Deg. one side pulse traveling 400usec
360 Modifiable: Yes
Direction: Counter Clockwise/Pulse Traveling 1520-1900usec
Motor Type: Coreless Motor
Potentiometer Drive: Indirect Drive
Bearing Type: Dual Ball Bearing
Gear Type: All Nylon Gears
Connector Wire Length: 12"
Dimensions: 1.6" x 0.8"x 1.4" (41 x 20 x 37mm)
Weight: 1.7oz. (49g)
COMMENTS: S9254 Digital Servo Precautions:
-It is best to avoid long leads and Y-harnesses especially with standard grade wires. If problems are encountered, consider using heavy duty wire such as Futaba's Heavy Duty Series or Hobbico's Pro Series,minimizing lead lengths, and/or removing Y-harnesses.
-Current Drain: This digital servo is specially designed for high-torque or high-speed, therefore very high current drain is normal at startup. For ultimate performance when using this servo please review the following points.
1. Radio systems with the Battery Fail Safe function have a higher cut-off voltage setting which will cause shorter operation time.
2. When installing the servo, please check pushrod linkage to make sure there is no binding in order to prevent excessive power consumption and decrease the life of the motor and battery.
A note on Coreless motors. A conventional servo motor has a steel core armature wrapped with wire that spins inside the magnets. In a Coreless design, the armature uses a thin wire mesh that forms a cup that spins around the outside of the magnet eliminating the heavy steel core. This design results in smoother operation and faster response time.
This servo is rated as high-torque for helicopter gyro applications, the rating would not be considered high-torque for airplane control surface or monster truck steering applications.
This digital servo cannot be used with the following * AM * transmitters as the servo neutral signal is: 1310us. CONQUEST AM, FG Series (T4FG, T5FGK,T6FG, T6FGK, T7FGK), New Terratop, T3EGX, T3PGE, T2NL, T2LGX, T2FR, T2PK series.
***** Otherwise they will work fine with current AM systems *****
***** Replacement servo hrons are FUTM3551 ***** The gear set for this servo is FUTM3445 (gear set S9253)***** The servo case is FUTM3057.
Stock/Manufacturer #FUTM0224
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