ORIGINAL: FSFLYER I just installed 2 new HS-5645 digital servos in one of my aircraft. I'm dissappointed with the poor centering accuracy. Does anyone know what the typical factory default deadband setting is? I don't want to spend money on a programmer if the deadband is already optimized. Not sure if the issue is deadband or slop in the gear train.
Servocity - HS-5645 Specifications:
Control System: +Pulse Width Control 1500usec Neutral
Required Pulse: 3-5 Volt Peak to Peak Square Wave
Operating Voltage: 4.8-6.0 Volts
Operating Temperature Range: -20 to +60 Degree C
Operating Speed (4.8V): 0.23sec/60° at no load
Operating Speed (6.0V): 0.18sec/60° at no load
Stall Torque (4.8V): 143oz/in. (10.3kg.cm)
Stall Torque (6.0V): 168 oz/in. (12.1kg.cm)
Operating Angle: 45 Deg. one side pulse traveling 400usec
360 Modifiable: Yes
Direction: Clockwise/Pulse Traveling 1500 to 1900usec
Current Drain (4.8V): 8.8mA/idle and 400mA no load operating
Current Drain (6.0V): 9.1mA/idle and 500mA no load operating
Dead Band Width: 8usec
Motor Type: 3 Pole Ferrite
Potentiometer Drive: Indirect Drive
Bearing Type: Dual Ball Bearing
Gear Type: 3 Metal Gears and 1 Resin Metal Gear
Connector Wire Length: 11.81" (300mm)
Dimensions: 1.59" x 0.77"x 1.48" (40.6 x 19.8 x 37.8mm)
Weight: 2.1oz. (60g)
Following may assist:
<dt>Digital Servo - Digital vs Analogue Hz, Deadband & Torque effects explained - Servomances.</dt><dt>Digital Servo Instruction Videos - Programming with HFP-10</dt><dt>Digital Servo Programming FAQ - Center & End Point - Adjust to Match TX</dt><dt>Digital Servo Programming FAQ - Center Point May Vary - Why & Correction</dt><dt>Digital Servo Programming FAQ - Programmer is Preferable to using EPA & Trims on TX</dt><dt>Digital Servo - Burnout. Cause & Prevention</dt><dt>Digital Servo - Delayed or Slow Centering at Start up #01</dt><dt>Digital Servo - High Resolution & Jitter - Why & DIY Cure #02</dt><dt>Digital Servo - HSR (Robotic) Servo. Do Not Use for Acro or Standard Purposes.</dt><dt>Digital Servo - Stop the Jitter of High Resolution Servo at center</dt><dt>Digital Servo - "Y" together without problem / jitter
more under sub section
"Servo - Digital & Brushless Servo, Programmers and Software"
below
"Radio Systems, Accessories, Alterations and FAQ" at
Alan's Hobby, Model & RC FAQ Web Links
Alan T.</dt>