Micro- pace step-servo motor driver of DF3 serial in GSK. Vector subdivision grade µ step GUANGZHOU NUMERICAL CONTROL EQUIPMENT WORKS

Transcription

1 Micro- pace step-servo motor driver of DF serial in GSK Vector subdivision grade µ step GUANGZHOU NUMERICAL CONTROL EQUIPMENT WORKS

2 CONTENTS Ι Type description... П Performance and features... Ш Echnical data... Ⅳ Interface and dial switch (DIP). Indicator-lamp....ables of interfaces.... Setting of dial switch:.... Indicator-lamp... Ⅴ Introduction of principle... Ⅵ Schematic diagram of interfaces... Ⅶ Installation.... Open and check.... Installation... Ⅷ Fault detection... Ⅸ Parameter list of three-phase reactive step motor... Ⅹ Circuit of DF power board... Ⅺ Circuit of DF power amplification boar.. Ⅻ Structure and installation dimension of DFA driver... ⅫⅠ Structure and installation dimension of DFC diver.0

3 Note: please read the instruction book carefully before installing the driver Ι Type description D F C 0L Input power grade: default value 0V, L for 0V Output of nominal phase current:0=a, 0=A,0=0A Mark of design sequence, A for the first version, and the following is B.Z Three-phase motor F is reactive step motor Product label, D for the driver type П Performance and features Micro-pace control: step motor can be operated and located for /,/0,/0 origin step angle, so the control accuracy is increased and the defect of rough running and easy to out-of-step operation in low speed is overcome. Smooth-subdivision control: minimum positioning accuracy is still the origin step angle of motor, but smooth-subdivision transition is used between steps to overcome the defect of rough running and easy to out-of-step operation in low speed. High speed and high torque: the slaving voltage of power amplifier is DC0V, so high-torque output is obtained in high speed. New technique: control core consists of Single Chip Microcomputer and programmable array, good control performance; large power MOSFET amplifier tube made by IR Co. in USA, strong overload and overheat ability, hard to burnout. High reliability: high integrated level of control circuit, few connecting lines, dust-proof structure, protection of over temperature, over current and under voltage. Ш Echnical data power input: AC0/0Hz,DFX-XX:0V+0%,-%;DFX-XXL:0V+0%-%,A(MAX) Adapted motor: three-phase reactive step motor Step angle subdivision: :(smooth subdivision), :.,:0,:0,set by the third and the fourth bit of DIP switch. Mode of distribution: phase and clap, phase and 0 clap, phase and 0 clap, phase and 0 clap, constant drive current. Input signal: impulse (CP)+direction (DIR) or clockwise rotation pulse (CW)+ counterclockwise rotation pulse (CCW), enable (FREE)

4 Signal level:v,~ma, K resistance series in V, K resistance series in V Maximum input pulse frequency: 0K Minimum input pulse width: us Alarm signal output: When over temperature or over current, drive NPN tube integrated electrode to open circuit, conduct when driver is normal Ⅳ Interface and dial switch (DIP). Indicator-lamp.Ables of interfaces Signal interface table PIN Terminal name Description CP/CW Pulse (+)/Clockwise pulse (+) Input CP/CW Pulse (-)/Clockwise pulse (-) Input DIR/CCW Direction (+)/Counterclockwise pulse (+) Input DIR/CCW Direction (-)/Counterclockwise pulse (-) Input FREE Enable (-) Input ALM Alarm output, conduct with COM when normal, break when alarm FREE Enable (+) Input COM Common terminal motor interface table: Terminal Description name A+ head of phase A B+ head of phase B C+ head of phase C C- ending of phase C B- ending of phase B A- ending of phase A power interface table: Terminal name Description AC0V IN power input AC0V IN power input AC0V OUT power output AC0V OUT power output PE power earth Note: interface name of DFA is marked in the shell, no shell in DFC, and the interface can be found from part numbers of circuit board. Signal interface: J DB9 in control board Motor interface: J P in power amplifier board Power interface: J P in power board. Setting of dial switch st bit: define input pulse mode, ON for CW+CCW, and OFF for CP+DIR nd bit: change-running direction, ON for clockwise rotation, OFF for counterclockwise rotation The following table is the pace subdivision setting decided by the third and the fourth bit of step motor: rd bit OFF ON OFF ON th bit OFF OFF ON ON

5 Subdivision number 0 0 Note: The power must be off when change setting of the third and the fourth bit of the switch. Definition of DIP switch bit: from left to right is,, and bit in turn in front view Definition of DIP switch (ON/OFF): in front view downward grip for ON, upward grip for OFF. Indicator-lamp Five LED are arranged in turn, the first, second and third are green, reflecting On or Off of three-phase motor current, light for On, extinguish for Off. The fourth is green; the lamp is bright when high voltage of the driver is ready. If no fault, the lamp lights in ~ seconds when the driver power is on. The fifth is red, the lamp lights when the driver is over temperature, over current and under voltage, but it is normal that the lamp lights in ~ seconds when the driver power is on, this indicates that the high voltage is not ready. Ⅴ Introduction of principle The driver consists of power board, power amplification board and control board. The function of power board is to turn 0V AC power supply into one channel DC high voltage (0V, no constant voltage) used by power amplification board, two channel DC low voltage (V and V, constant voltage) used by control board, one channel 0V AC returned outside used by coolant fan. The function of control board is to supply power amplification board current control signal, output alarm signal outside, and supply indicator lamps of phase current, high voltage and alarm according to setting of switch and condition of input control signal. The function of power amplification board is to amplify V control signal from control board to 0V high voltages, maximum for 0A pulse power to drive the step motor.

6 Ⅵ Schematic diagram of interfaces CNC interface DF DF electric electric engine engine interface Earth (PE) - V + Signal interface CP/CW 00 AC0V output Axial flow fan Axial flow fan CP/CW DIR/CCW 00.A AC0V input Insulating transformer DIR/CCW FREE K power interface FREE ALM + - V COM 9 RReactive step motor step motor Grounding Ⅶ Installation. Open and check DF driver is enclosed with single (axial) or double (axial), please open the box and check the packing list. If not coincidental, please contact us for settlement immediately.. Installation The protection grade of DF is IP0. Customers must take waterproof method. Independently install or assemble with CNC controller of our GSK series. The protection grade of DF is IP00(no protection). Now, only integrated assemblage is done. If consumers require independent installation, dustproof, waterproof and shockproof must be done. (Figure ), (Figure ) are structure and installation dimension of DFA, DFC respectively. Please install according to recommended space length. The driver should be installed in well-ventilated and protected electric box.. Wiring Please connect wires according to interfere table and schematic diagram of interfaces. The sectional area of power wire and motor wire should be greater than square millimeter. Make sure that wiring joint is firm. Prevent joint from heating to destroy parts and cause driver work abnormally, and attention good ground connection. Ⅷ Fault detection When the system has fault, how do we confirm that it aroused by the driver or not? Substitution method can do it. This means that a new driver substitutes a bad one. After the substitution, if the system returns to normal condition, it is identified that the driver is bad. Otherwise, other parts but the driver should be checked. But, the

7 following cases are not caused by bad driver, please note: Fault case No power amplification (the motor can be locked) Fault cause No FREE signal input or its polarity reverse Having power amplification, But the electromotor can t run Electromotor can only run to one way The electromotor can work normally, but it may lose steps. No power amplification, alarm lamp is lighting No CP, CW, CCW signal input; having CCW input signal, but the st bit of DIP is set on OFF Wrong DIP set: setting is ON when input is CP+DIR, OFF when CW+CCW () The controller control rise and drop is too fast. () Mechanical system is not smooth or overloaded () Electromotor resonate () Electromotor or connecting circuit has phenomenon of leakage or poor contact () Power voltage is too low or the fluctuation is too great or power line connection is poor, or power switch is poor etc. () After turning off power, the interval time of power on is less than second () Electromotor and its connected circuit leakage, short circuit () driver is over temperature Note: As to lose step because of resonance, adjusting the damping disk in back cover of the electromotor can solve it. If the driver is damaged, please contact manufacturer for repair Ⅸ Parameter list of three-phase reactive step motor Motor type Phase maintai n torque Nm Half step angle static current (A) no-load running frequency no-load initial frequency running torque-frequency character (Nz) Hz Hz Hz Hz Hz 000 0Hz 0BC0A BC0B BC0C BC00A BC00B BC00C BC00D BC00E BC00F Note: The table refers to materials from the motor maker of Huazhong technical university in Wuhan, for indication only.

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9 十 Ⅹ. Circuit Circuit of DF of power DF board power board J P F PE C 0 A R K R W R K R W0K 0Vu C KV D FR0 C UA 9 R K ZR C 00V C KV0 R0 K R9 K T AZL Q 0 R MZ-0 RT 0 RX *K C KV C KV C 0 C D D FR FR D UB 9 R 0K T IRMB0 R K uh D R U A00V R W C 0 FR W0K R 0 C 00 C0 00V0 D.V C0 R.K 0 R W0K J P J P J J P P 0 C KV Q BUX R. 9 0 Q 09 C 00V0 C C B B A A R R 0 R 00 R 00 C C 0V0 R 0K V 0 D 0 V 0 R D C9 0 C0 0 R 0K C W00K D D R 00 C 00V0 R 00 R 0K V 0 RA 0.0 V 0 T.V R9 0 R 0K 0 C 0V0 D 0 R 00 R9 00 B C 0 C KV Ⅺ 十一. Circuit of of DF DF power power amplification amplification boar boar U C 0 PE N C 0V0 R 0K V 0 R 0K C 0V0 R 00 R0 00 V 0 R 0K C 0V0 D 0 R0 00 R 00 C 0V0 V9 0 R 0K R 00 R 00 V 0 R0 0K D 0 RB 0.0 D 0 RC 0.0 V 0 U R B R0 0 C9 0 C 0 R.K R9 0K V 0 R.K C 0 C 0 A R 0K V0 0 C V0 U A C 0 A+ V 0 R 0K J P D 0 J P A A A B B B C C C B+ C+ C- B- A- J P 9

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