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User Manual SCA-SE-30-06

5. Explanation of Terminals, Dip Switches, & Potentiometers

5.1 Terminals

Terminal

Label

Description

XA

Pin 1 & 2 connect to motor.

Pin 3 & 4 connect to power supply.

Pin 5 & 6 input tacho.

Pin 7 & 8 input set value.

Pin 9 voltage 3,9 VDC.

Pin 10 voltage output -3,9 VDC.

Pin 11 output signal

Error out

.

Pin 12 signal GND.

Pin 13 voltage output

V

.

Pin 14 input

Enable In

.

Pin 15 & 16 input encoder A, /A.

Pin 17 & 18 input encoder B, /B.

Pin 19 & 20 input encoder I, /I.

Pin 21 GND.

Pin 22 voltage 5 VDC.

Pin 23 & 24 output tacho.

Pin 25 & 26 connect to power supply.

Pin 27 GND.

Pin 28 voltage input

24V Opt. In

.

ElectroCraft

®

E-Mail: [email protected] www.electrocraft.com May 2009

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Содержание SCA-SE-30-06

Страница 1: ...power supplies Protected against overtemperature and over current MOSFet technology efficiency 95 Continuous current up to 6 A Basic drive description The SCA SE 30 06 servo amplifiers are designed to drive DC brush type motors They require a single DC power supply for operation The drives are to be used with a single motor They have the functionality to operate as an independent speed control or ...

Страница 2: ... Dimensions 31 12 Mounting Din rail adapter 32 Used Symbols Indicates a warning or caution concerning operations that may lead to death or injury to persons or damage to property if not performed correctly In order to use the drive safely always pay attention to these warnings Indicates a clarification of an operation or contains additional explanations or operational requirements for a procedure ...

Страница 3: ...ded Certain applications may involve special requirements Consult Factory Take care that in case of regeneration or in brake operation the energy recovery must be buffered by the power supply and or a braking module Ensure with electronically stabilized power supplies that protection circuit isn t react Don t switch off the power supply while the motor is turning in this case the drive could be de...

Страница 4: ...ptional choke modules are often an economical solution for low inductance or other motors if an overheating situation occurs in regular intervals Contact factory service for details Power terminals The diameter must be suited for the current load The recommendation for the drive is 1 5 mm2 AWG16 the min is 0 14 mm2 AWG26 and the max is 1 5 mm2 AWG16 Strip the wire insulation of the cables on a len...

Страница 5: ... 10 kOhm max 600 kHz Set value Set value Analog 10 10 VDC Resistance 20 kOhm Tacho Tacho Analog 50 50 VDC Resistance 50 kOhm 24V Opt In 24 VDC Resistance 4 7 kOhm 2 5 Outputs Auxiliary Voltage Output Reference 3 9 VDC 20 mA Auxiliary Voltage Output Reference 3 9 VDC 20 mA Auxiliary Voltage Output Enable V 27 kOhm to VCC Auxiliary Voltage Output 5V 5 VDC 100 mA Error out Open Collector 30 VDC max 2...

Страница 6: ...User Manual SCA SE 30 06 3 Drive Overview 3 1 Block Diagram ElectroCraft E Mail info electrocraft com www electrocraft com May 2009 6 ...

Страница 7: ...User Manual SCA SE 30 06 3 2 Input Output Schematics ElectroCraft E Mail info electrocraft com www electrocraft com May 2009 7 ...

Страница 8: ... this mode is limited through the encoder input frequency Remark The modes below are possible with the drive but not advisable Use in this case the SCA SS 30 06 The descriptions and wiring examples for these modes are all described in the manual of the SCA SS 30 06 Voltage Mode In the voltage mode the drive is watching the output voltage as a feedback voltage The drive can not regulate the speed e...

Страница 9: ...a voltage mode with an additional factor to correct the speed under changing the load The factor which is adjusted with the IxR potentiometer is only an approximate value The speed regulation is good but not stable for all load conditions It is a compromise between voltage mode and tacho mode Torque Mode In the torque mode the drive does only control the current in the motor This control loop is v...

Страница 10: ...onnect the shield to the controller A separate cable has to be used Analog Signals Set value Set value Tacho Tacho Tacho out Tacho out In most cases no shielding required This may be different for low level signals or in an environment with strong magnetic interference Connect the shield on either end of the cable For 50 60 Hz interference remove the shield on one side Digital Signals Enable In Er...

Страница 11: ...User Manual SCA SE 30 06 4 1 Wiring Example I Encoder Mode ElectroCraft E Mail info electrocraft com www electrocraft com May 2009 11 ...

Страница 12: ...ajor importance that this value is lower than the maximum admissible constant current see motor data sheet To measure the motor current use a current probe in one of the motor cables with an oscilloscope or a multimeter or the Monitor I output 5 Slowly raise the value of the Gain potentiometer If the motor begins to work unsteadily to vibrate or to cause excessive noise carefully lower the gain fa...

Страница 13: ...tput 3 9 VDC Pin 10 voltage output 3 9 VDC Pin 11 output signal Error out Pin 12 signal GND Pin 13 voltage output Enable V Pin 14 input Enable In Pin 15 16 input encoder A A Pin 17 18 input encoder B B Pin 19 20 input encoder I I Pin 21 GND Pin 22 voltage output 5 VDC Pin 23 24 output tacho Pin 25 26 connect to power supply Pin 27 GND Pin 28 voltage input 24V Opt In ElectroCraft E Mail info electr...

Страница 14: ...tor raised n max Definition of max number of revolutions Value is decreased Value is increased I max Set value for max current Upper limit lowered Upper limit raised IxR IxR offset compensation Low compensation High compensation Offset Zero Offset motor stands still Motor rotates counterclockwise Clockwise rotation Potentiometer setting for start up Gain n max I max IxR Offset Left stop Middle Mid...

Страница 15: ... Open Set 30 kHz Open Open Set Open Open Set 15 kHz Set Open Set Set Open Set 7 5 kHz Set Set Set Open Set Set 6 kHz Set Open Set Open Set Set 1 5 kHz Refer chapter 7 1 Remark J12 is responsible for the filtering of the output signal If it is set the quality of the Tacho out signal is improved but the dynamic behaviour is reduced due to the lowpass response ElectroCraft E Mail info electrocraft co...

Страница 16: ...d Control by Tacho J5 J6 Methods of entering the set value refer chapter 7 3 Open Open External selection using a voltage 0 to 10 VDC between XA 7 and XA 8 Set Open External potentiometer is used 0 to 4 VDC Set Set The internal Offset potentiometer is used Remark Do not connect Set value and Set value in this case ElectroCraft E Mail info electrocraft com www electrocraft com May 2009 16 ...

Страница 17: ...re not to exceed meaningful limits An exaggerated value may entail problems for the control of the servo amplifier making it impossible e g to line up the system in speed control operation under load Gain The dynamical behaviour of the servo amplifier must be compatible to the particular connected motor The adjusting procedure is performed using the Gain potentiometer A bad adaptation i e if the G...

Страница 18: ... or without differential outputs Connect only the existing signals of the encoder IxR This potentiometer is helpful to stabilize the speed in a certain range after a change of the load First detect the number of revolutions at the lower level then raise the load and adapt the speed using the IxR potentiometer An optimum precision of the compensation however is not realistic because the behaviour o...

Страница 19: ...ptimum motor torque In brush type motors commutation is done electromechanically via the brushes and commutator In brushless motors commutation is done by the switching electronics using rotor position information obtained by Hall sensors Analog Position Mode The analog position mode is using a voltage feedback generated by a potentiometer which is mounted e g on the motor axis Back EMF The voltag...

Страница 20: ...f torque at zero speed which a motor can continuously deliver without exceeding its thermal rating To determined by applying DC current through two windings with locked rotor while monitoring temperature It s specified with motor windings at maximum rated temperature and 25 C ambient temperature motor mounted to a heat sink Refer to individual specs for heat sink size Controller A term describing ...

Страница 21: ...l outputs Efficiency The ratio of power output to power input Feedback It is a signal which is transferred from the output back to the input for use in a closed loop system Four quadrants Refers to a motion system which can operate in all four quadrants i e velocity in either direction and torque in either direction This means that the motor can accelerate run and decelerate in either direction In...

Страница 22: ...y improved efficiency compared to linear techniques Ramp The ramp time defines the increasing time to reach the scheduled value The ramp is active after the drive is enabled also after changing the Set value Regeneration The action during motor braking in which the motor acts as a generator and takes kinetic energy from the load converts it to electrical energy and returns it to the amplifier Reso...

Страница 23: ...rive in an over temperature condition Torque Is a measure of angular force which produces rotational motion This force is defined by a linear force multiplied by a radius e g lb in or Nm Torque is an important parameter of any motion control system Two Quadrants Refers to a motion system which can operate in two quadrants by changing the direction of the motor speed ore in one quadrant with active...

Страница 24: ...nable disabled open or connected to GND Note The voltage output Enable V can be used as source for the Enable In input Encoder A A B B I I Encoder Feedback of the Motor The encoder inputs XB 15 to XB 20 are connected to the incremental encoder outputs of the motor The supply voltage is given by the 5V output at XB 22 to GND The drive needs the signals to control the speed Additional information ab...

Страница 25: ...any control 7 2 Digital Outputs Error Out Monitoring Output Whenever a system failure occurs i e overtemperature the Error Out output responds LO position and the green LED on the front panel is switch to red The drive output stage is switched off and will be switch on after the failure is drop The output is an open collector output and via an external pull up resistor adaptable to the most indust...

Страница 26: ...e of Input Voltage 10 V to 10 V Input Impedance 100 kOhm Permanent Input Protection 15 V to 15 V Remark To use the internal Offset potentiometer as Set value source set jumper J5 and jumper J6 Refer chapter 5 3 As an alternative the set value can be entered using an external potentiometer 10 kOhm For this purpose set jumper J5 connect the slide resistance to Set value the left stop to Reference an...

Страница 27: ...mum speed without any control The value of the input protection depends on the setting of n max potentiometer 7 4 Analog Outputs Tacho out Tacho out Analog Encoder Output for Tachometer Feed Back The Tacho out XB 23and Tacho out XB 24 outputs are transmit an analog set value for the number of revolutions generated by a frequency to voltage converter from the digital encoder signals These output ha...

Страница 28: ...r of the tacho is permuted Check the encoder wiring No load at torque mode Reduce the maximal speed with pot n max Motor noise Reduce gain with gain pot Use additional choke in the motor Motor has no torque Increase the admissible current with I max pot Motor drifts at standstill Adjust the offset with the offset pot The input value for the set value isn t stable Motor is going hot at standstill U...

Страница 29: ...ries Reset the amplifier Note Beware that the maximal working temperature of 80 C in the driver is not reached otherwise the drive will be switched off 9 Accessories Options Mounting adaptor for Din rail ASX RM 01 01 Choke modules IA2100 with 2 x 50 µH and IA2101 with 2 x 100 µH Braking module ASO BM 70 30 ElectroCraft E Mail info electrocraft com www electrocraft com May 2009 29 ...

Страница 30: ...arranted for a period of 18 months from date of shipment to be free from defects in materials workmanship and to conform to the specifications Liability under this warranty shall be limited to the repair or replacement but not to the installation of any defective product at Seller s option Products will be repaired or replaced at the Seller s option Under no circumstance shall the user repair or m...

Страница 31: ...User Manual SCA SE 30 06 ElectroCraft E Mail info electrocraft com www electrocraft com May 2009 31 11 Dimensions 92 12 4 x 4 5 121 90 40 82 100 3 0 1 5 15 28 14 1 All dimensions in mm ...

Страница 32: ...User Manual SCA SE 30 06 ElectroCraft E Mail info electrocraft com www electrocraft com May 2009 32 12 Mounting Din rail adapter 4 x M4x6 SCA SE 30 06_E09 Subject to change without prior notice ...

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