Kondo Kagaku KRS Series User manual

KRS Series Manual
Thank you for buying our product. Please read this manual carefully to use. This manual describes
common functions of KRS red version series.
[For your safety]
z
Danger
Don’t touch or close your face and hands during the servo motor working.
The device works under strong torque. Severe damage or harm user. Or fire by too much load.
z
Caution
¾Confirm input signal and power voltage. Don’t use power voltage of out of range.
¾Pay attention connector direction to attach your equipment.
¾Keep dry. Don’t use it in wet condition to avoid short circuit.
¾Don’t dismantle and remodel.
[Attention]
zThis product is specialized for robot. It can’t apply radio control car.
zPlease confirm less friction when the product is attached servo hones or brackets.
zThe product doesn’t work in maximum torque if you use a dry cell.
zThe degree of the product is depending on input signal. It is not guaranteed the degree under
any condition.
zThe product widens the range of degree. Minimum pulse period is 700μsec. Maximum pulse
period is 2300μsec (maximum degree). It can set limit value to avoid noise and miss-setting.
Software on PC can set the function. (It requires exclusive equipment. Software can be
downloaded from http://www.kondo-robot.com The site is only Japanese.)
[Specification]
Power supply DC6V
Maximum degree 180 degree (KRS-949 is 120 degree)
[Special functions]
The product can connect with PC to set up the characteristics.
zPulse stretch: Setting of servo motor mode. It is digital servo motor, but it can use like a analog
servo motor.
zSpeed: It can set maximum speed of servo motor.
zPunch: It can set initial response of servo motor.
zDead band: Setting of neutral band
zDumping: Setting of servo motor stop characteristics. Breaking before stopping point or
overshoot.
zPulse operation timer: Setting of time to release control when there is no input pulse.
zProtection timer: Setting of start time to begin protection action. Protection function guards
servo motor from lock by 25% power down during setting time.
zLimit: Setting of maximum degree. It can set left and right respectively or same.
zReverse: Reverse rotate direction depending on the pulse width.
This function requires exclusive equipment to connect PC. (ICS PC interface No.01018)
The software can be downloaded from http://www.kondo-robot.com/

[Control Signal]
General signal period is the same of radio control car signal. (Neutral 1.5msec, Period 8-20 msec)
Adding to this function, the product has position capture function.
1. Characteristic change function
In general, radio control car servo motor has input period about 0.7 – 2.3msec to control position.
Adding to this function, the product can change 3 modes by input short pulse period. It can change 3
mode of each pulse stretch and speed.
Input 100μsec => parameter 1
Input 150μsec => parameter 2
Input 200μsec => parameter 3
2. Power reduction (Motor off)
In the case of input 50μsec, the motor is turned off until next signal(700-2300μsec) coming.
(Output axis is free.) If next signal is characteristic change, the product keeps status of the function.
It means the motor is still power reduction mode. And also, the product keeps power reduction mode
if there is no signal which is set up by pulse operation timer.
3. Position capture
When characteristic change pulse or power reduction pulse is input, servo motor changes the signal
line mode from input to output within 100μsec. In this case, output value is pulse period of
according to the current degree. To measure of width of this pulse, position can be captured. After
100μsec from pulse output, servo signal line is back to input mode. During the sequence of this
function, servo motor output keeps previous status of setting.
Input
Servo Signal Line Input Output Input Output Input
Action Normal Keep status Power reduction Normal
If you make control board by yourself, please put pull up resister to CPU.And also, CPU board must
handle input/output mode change which is attached the servo signal line.
[Repair Information]
Please inform us details of problem.
zDescription of trouble
zDetails of application or hardware which the product was applied.
zPacking list (number of products and parts name)
zAddress, Telephone number and name to deliver and e-mail address
[Contact us]
Product by
Service division of Kondo Kagaku Co. Ltd,
4-17-7 Higashinippori, Arakawa-ku 116-0014, Tokyo, Japan
TEL: [phone] (Japanese only)
Export and Translated by
iXs Research Corporation
5-14-10 Komaoka, Tsurumi-ku, Yokohama 230-0071, Kanagawa, Japan
E-mail: [email protected]
100~200μsec 50μsec 700~2300μsec