Controlling of Blue bird BMS RC servomotor BMS-660MG+HS urgent plz help
12-31-2006, 02:05 AM
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Controlling of Blue bird BMS RC servomotor BMS-660MG+HS urgent plz help
hi...
i have bought a RC servomotor from Blue bird technology,Taiwan. I am a new user of RC servomotor i have not used earlier. I have bought this Servomotor for my Robotics project. I am going to control with Micro controller not with the Receiver and Transmitter. i have tested the motor with the time period as stated with the help of micro controller.there is no change the motor rotates in CW direction not in the CCW. i have given the signal pulse at the frequency of 50HZ. I have asked the manufacturer... they are not giving proper response and they are not mailing back. i have called them and spoke they are saying "We are testing it and give us little time" but i have been asking for past 15 days and there is no reply from them.
My queries are...
1.when a power supply is switched on and off every time,the motor moves to some position automatically with out giving any signal or left as floating. . Is the Rc servomotor will rotate like this?
2.What should be the total time period(Ton+Toff)
3.What should the Ton period for CW
4.What should be the Ton period for CCW.
5.For reversing i have to use reverser circuit?
6.What will be the frequency of the pulse width.
7.BMS660MG+HS is digital or analog..
8.what should be the amplitude of the signal
kindly reply to the queries it is very urgent...so plz kindly reply.
with regards
vaidyanathan
Specification:
Item No: BMS-660MG+HS
Weight: 54 grams / 1.88 oz.
Size: 40.5 x 20 x 42.5 mm / 1.60 x 0.78 x 1.64 in.
Torque At 4.8V: 13.0kg-cm , 181 oz-in
Torque At 6.0V: 14.6kg-cm , 195 oz
Speed At 4.8V: 0.17 sec / 60° at no load
Speed At 6.0V: 0.15 sec / 60° at no load
Ball Bearing: Dual / M9x7
Metal Gears: YES, 3 gears of aluminum, 2 gear of copper, 1 nylon gear
Motor Type: Double magnetic motor
Servo case: Middle Heat Sink case
Operating Voltage Range 4.8V to 6.0V
Operating Temperature Range -20oC to +60oC
Idle Current 5mA at Stopped
Running Current 640mA
Stall Current 1800mA
Dead Band Width 8 micro second
Direction Re-clock wise / pulse traveling 1200 to 1600 micro second
Horn Gear Spline 25 Segments / (Same as Futaba)
Connector Wire Length 300mm (11.81in)
Connector Horsing Universal connector
Wire Info Brown Wire = Battery Negative
Red Wire = Battery Positive
Orange Wire = Signal
i have bought a RC servomotor from Blue bird technology,Taiwan. I am a new user of RC servomotor i have not used earlier. I have bought this Servomotor for my Robotics project. I am going to control with Micro controller not with the Receiver and Transmitter. i have tested the motor with the time period as stated with the help of micro controller.there is no change the motor rotates in CW direction not in the CCW. i have given the signal pulse at the frequency of 50HZ. I have asked the manufacturer... they are not giving proper response and they are not mailing back. i have called them and spoke they are saying "We are testing it and give us little time" but i have been asking for past 15 days and there is no reply from them.
My queries are...
1.when a power supply is switched on and off every time,the motor moves to some position automatically with out giving any signal or left as floating. . Is the Rc servomotor will rotate like this?
2.What should be the total time period(Ton+Toff)
3.What should the Ton period for CW
4.What should be the Ton period for CCW.
5.For reversing i have to use reverser circuit?
6.What will be the frequency of the pulse width.
7.BMS660MG+HS is digital or analog..
8.what should be the amplitude of the signal
kindly reply to the queries it is very urgent...so plz kindly reply.
with regards
vaidyanathan
Specification:
Item No: BMS-660MG+HS
Weight: 54 grams / 1.88 oz.
Size: 40.5 x 20 x 42.5 mm / 1.60 x 0.78 x 1.64 in.
Torque At 4.8V: 13.0kg-cm , 181 oz-in
Torque At 6.0V: 14.6kg-cm , 195 oz
Speed At 4.8V: 0.17 sec / 60° at no load
Speed At 6.0V: 0.15 sec / 60° at no load
Ball Bearing: Dual / M9x7
Metal Gears: YES, 3 gears of aluminum, 2 gear of copper, 1 nylon gear
Motor Type: Double magnetic motor
Servo case: Middle Heat Sink case
Operating Voltage Range 4.8V to 6.0V
Operating Temperature Range -20oC to +60oC
Idle Current 5mA at Stopped
Running Current 640mA
Stall Current 1800mA
Dead Band Width 8 micro second
Direction Re-clock wise / pulse traveling 1200 to 1600 micro second
Horn Gear Spline 25 Segments / (Same as Futaba)
Connector Wire Length 300mm (11.81in)
Connector Horsing Universal connector
Wire Info Brown Wire = Battery Negative
Red Wire = Battery Positive
Orange Wire = Signal
