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7.1.1  Push-Pull- or OC-Controlling 

We recommend to control the MCD inputs by push-pull drivers. This confers optimum 
suppression of disturbances.  

 

Fig. 23: 

Push-pull controlling 

Alternatively a controlling via open-collector is possible.  

 

Fig. 24: 

Open Collector Controlling 

 

7.1.2  Logic Level 24 V or 5 V 

MCD power stages can be driven by input level 5 V or 24 V. 

The different values depend on the input level: 

Signal level 

5 V 

24 V 

High 

2.5 – 5.5 V 

20 – 30 V 

Low 

< 0.4 V 

< 3 V 

Necessary driver current 

10 mA minimum 

 

Attention:

 

 

Please check the input level applied to the MCD:  5 V or 24 V 
and connect the signals to the equivalent pins (see fig. 25)! 
Do not connect a 5 V input to 24 V voltage!  Danger of damages! 

 
 

27  

MA 2102-A005 GB 

Summary of Contents for MCD+

Page 1: ...Manual 2102 A005 GB MCD Compact Stepper Motor Power Stage for Wall Mounting...

Page 2: ......

Page 3: ...phytron 03 2008 Manual MA 2102 A005 GB MCD 93 70 Compact Stepper Motor Power Stage for Wall Mounting...

Page 4: ...ained in this manual is correct to the best of our knowledge and belief but cannot be guaranteed Furthermore we reserve the right to make improvements and enhancements to the manual and or the devices...

Page 5: ...or 23 6 2 Shielding 23 6 3 Wiring Schemes 24 6 4 Motor Cables 25 7 Inputs and Error Output 26 7 1 Inputs 26 7 1 1 Push Pull or OC Controlling 27 7 1 2 Logic Level 24 V or 5 V 27 7 1 3 Control Pulse In...

Page 6: ...d 4 quadrant chopper type current control The operating parameters run and stop current step resolution current delay time and preferential motor direction can be set either by rotary switches or by S...

Page 7: ...be connected to the supply voltage connector Inputs Two possibilities of input level The MCD power stage can be controlled with 5 V or 24 V depending on the wiring The inputs Control pulse Motor dire...

Page 8: ...tage with the phytron USB Converter a cable 20 cm included for wall mounting with mating connectors 10006861 MCD Power stage with the phytron USB Converter a cable 20 cm included for rail mounting wit...

Page 9: ...5 17 ST 3 5 10006319 1 3 Signal Connector X3 The power stage is adapted for 5 V or 24 V input voltage There are different pin assignments for both input voltages Fig 2 17 pole Phoenix Combicon connec...

Page 10: ...s at the front panel Fig 5 16 step setting switch setting 0 F Operating mode Setting switch mode Phase currents Step resolution preferential motor direction and device address are set by the rotary sw...

Page 11: ...switch adjustments are only accepted after a Reset signal Settings in the power stage also can be changed in setting switch mode by ServiceBus Comm After Reset and then only the settings of the rotary...

Page 12: ...ositions may be changed while the MCD is powered off or the power stage is deactivated However after changing the switch position the power stage should be reset by the input Reset 1 5 2 ServiceBus Mo...

Page 13: ...rmed by Reset 1 5 3 Bus Mode Exclusive The Bus mode exclusive ensures safe operation in ServiceBus mode If the power stage is set to Bus mode exclusive in ServiceBus mode by ServiceBus Comm all rotary...

Page 14: ...urrent can be changed between 2 ranges by the rotary switch CURRENT RANGE SETTING I and II Factory settings Rotary switch I low range All rotary switches 0 Rotary switch position Range I Range II Run...

Page 15: ...enix Mini Combicon connector type MC 1 5 17 ST 3 5 Connector at X4 IN 4 pole ServiceBus connector type DIN IEC 61076 3 107 Connector at X5 OUT 4 pole ServiceBus connector type DIN IEC 61076 3 107 Inpu...

Page 16: ...to 40 C Storage 25 to 55 C Transport 25 to 85 C We recommend an additional cooling in case of higher operation temperatures Ambient standards EN 50178 Electronic equipment for use in power installati...

Page 17: ...hap 3 3 2 The connector power supply X1 should be locked with the fixing screws 3 The transformer must be constructed with reinforced or double insulation to avoid dangerous touch voltages 50 VAC and...

Page 18: ...reinforced or double insulation 10 The surface of the MCD may reach temperatures of more than 85 C during operation Danger of injury if touching the surface 3 3 Protective Measure Options for the Oper...

Page 19: ...nto Service 3 4 1 For Rotary Switch Mode Please follow the described order when you put into service the MCD power stage 1 Connect the MCD acc to protective measure in chap 3 3 2 Wire the 17 pole Ph n...

Page 20: ...Please follow the described order when you put into service the MCD power stage 1 to 3 see chap 3 4 1 4 Rotary switch setting for ServiceBus mode Set the rotary switches S2 S3 and S4 to position 0 Set...

Page 21: ...m Required free space for cables and connectors about 30 mm at the MCD front panel Wall mounting The MCD has been designed to be mounted in different mounting positions The power stage can be fixed at...

Page 22: ...85 V the MCD detects undervoltage Fig 16 Mains supply unit For calculation and connection of the supply unit the following instructions must be followed The transformer must be constructed with reinf...

Page 23: ...the requirements of a basic insulation for non mains circuits for voltages up to 141 V acc to EN 50178 The device has been designed for degree of pollution 2 acc to EN 50178 The IO signals on connect...

Page 24: ...wiring scheme 3 or 4 cannot be used because of the motor construction the motor may be operated with only two of the four windings energized according to wiring scheme 5 Warning 5 lead stepper motors...

Page 25: ...Attention Do not unplug the motor connector while powered Danger of electric arcing 6 2 Shielding To avoid disturbances affecting the wires and instruments installed close to the drive system we reco...

Page 26: ...Manual MCD 6 3 Wiring Schemes Fig 21 Connection diagrams for 4 6 and 8 wire stepper motors MA 2102 A005 GB 24...

Page 27: ...ide of the MCD The shielding mesh should also be connected on a large surface to the motor housing Use EMC type conduit fittings All parts of the motor should be conductively connected with each other...

Page 28: ...HIGH active or LOW active The input logic of Reset remains unchanged always HIGH active 7 1 Inputs There are 3 pins for every input signal Control pulses Boost Motor direction Reset Activation Theref...

Page 29: ...tor Controlling 7 1 2 Logic Level 24 V or 5 V MCD power stages can be driven by input level 5 V or 24 V The different values depend on the input level Signal level 5 V 24 V High 2 5 5 5 V 20 30 V Low...

Page 30: ...ep Typical values for the start stop frequency are 200 to 2000 Hz The exact value depends on the load torque and the load inertia of the motor shaft If the motor is to be operated above the start stop...

Page 31: ...es to Boost current The power stage increases the run and stop current by 30 in Rotary switch mode As long as the Boost input is energized the run and stop current will always be 30 higher The boost c...

Page 32: ...l after approximately 500 ms 7 2 Error Output Open Collector Darlington output insulated by means of optocoupler Imax 20 mA Umax 30 V Ptotal 300 mW UCE sat at 20 mA 1 V Fig 27 Output wiring diagram Re...

Page 33: ...r message overvoltage is caused off by operation with maximum power supply 70 V by motor mass ineratia 1 3 x 10 4 kgm2 and high revolutions per minute 20 rev s Overcurrent Short circuit The red LED sh...

Page 34: ...nt Ar m s without Boost IRun IStop Step resolution pref motor direction s appendix A1 Current range setting 0 ServiceBus mode activated 1 0 2 0 6 Full Step 2 0 3 0 9 Half Step 3 0 4 1 3 1 4 4 0 5 1 6...

Page 35: ...range II 5 A x 2 x 1 3 9 A Important The run and stop current values which are set by the rotary switches depend on the selected current rage that means Run current without Boost Stop current without...

Page 36: ...et all to 0 The rotary switch S1 is used for device address setting 0 F Therefore up to 16 MCD power stages can be connected by the connectors X4 and X5 and addressed Two possibilities for MCD connect...

Page 37: ...is addressed by 0 to which the USB RS485 converter is screwed All other power stages are addressed continuously fig 30 Fig 30 Power stage MCD with phytron USB RS485 converter Important When the MCD i...

Page 38: ...Important Use a USB cable with a maximum length of 2 m For checking the correct USB driver installation continue as follows Start the device manager by clicking Start Settings System control and doub...

Page 39: ...f optocoupler A well defined protocol should be followed to assure a safe data exchange Asynchronous transmission 8 bits byte 1 stop bit 1 parity bit Transmission rate 57600 Baud Permanent telegram fo...

Page 40: ...Instead of the checksum bytes two X characters will be accepted by the power stage As well telegrams without checksum and also without separator will be accepted e g Example STX 1 R 4 0 X X ETX or Exa...

Page 41: ...rrent lowest value r1 S Scale of current or temperature values 1 1 1 10 1 10 SS Read scale value of the stop current s10 E Unit of current and time values A mA ms s SE Read unit of the stop current eA...

Page 42: ...ription 0001 1 0 Error under overvoltage 0002 2 1 Error overtemperature short circuit 0020 32 5 Power stage is in basic position 0040 64 6 Error checksum 0080 128 7 Reset in MCD G Pref direction R W 0...

Page 43: ...parameters to define security functions See chap 9 2 1 Q Error inquiry R 0 to 3 0 no error 1 undervoltage overvoltage 2 overtemperature 3 overcurrent R Run current R W 0 to 63 Run current values from...

Page 44: ...ues PB Operation mode R W 0 or 1 Set operation mode 0 Bus 1 Stand alone 1 PC Current Shaping R W 0 or 1 Define Current Shaping CS 0 On 1 Off 0 PH Overdrive upper switching frequency R W 225 to 225 000...

Page 45: ...sic position j1 LB LT0 or LT1 Read input logic level Boost Set input logic level Control Pulse lb0 or lb1 lt0 or lt1 M0 M12 M Set step width Read step width M0 m12 m0 m12 O O0 or O1 Read output logic...

Page 46: ...px1 px0 or px1 Q Error inquiry q0 q3 R R150 Read run current Set run current to 1 5 Ar m s e g r18 1 8 Ar m s r15 S S240 Read stop current Set stop current to 2 4 Ar m s e g s18 1 8 A r m s s24 T T10...

Page 47: ...plied by 2 by alternately energizing the stepper motor s phases 1 1 2 2 etc This is the HALF STEP mode The torque however is reduced in the half step mode compared to the full step mode To compensate...

Page 48: ...he step resolution by a factor 2 4 5 8 10 or 20 of a full step MINISTEP MODE In ServiceBus mode the step resolution can be increased by a factor 2 4 5 8 10 16 20 32 64 128 256 or 512 of a full step MI...

Page 49: ...n ramps Therefore different phase currents should be used Continuous operation run current During acceleration and deceleration Boost current The Boost signal is activated by the superior controller W...

Page 50: ...sates the decrease of current and torque The phase current is increased by about 20 in Overdrive function The switching frequency based on FS can be selected from 225 Hz to 225 kHz This switching freq...

Page 51: ...128 kHz 115 kHz 1 kHz 1 256 256 kHz 230 kHz 1 kHz 1 512 512 kHz 460 kHz 1 kHz Example for 500 Hz switching frequency during VS operation Step resolution Input control pulse frequency PH ServiceBus pa...

Page 52: ...set to 40 ms In ServiceBus mode the delay time can be programmed from 1 to 1000 ms in 15 steps Automatic change from run to stop current The ratio between both phase currents remains equal in the res...

Page 53: ...ves They are caused by the stepper motor inductance and the generator feedback which increases with the motor speed The resulting current queue makes precise current regulation possible by Current Sha...

Page 54: ...ghts of third parties Some product names used herein are for instance ServiceBus Comm is a trade mark of the Phytron Elektronik GmbH Microsoft is a registered trade mark and WINDOWS is a trade mark of...

Page 55: ...phytron Appendix C Declarations of Conformity 53 MA 2102 A005 GB...

Page 56: ...Manual MCD MA 2102 A005 GB 54...

Page 57: ...agramm 26 Inputs 13 Installation 15 Instruction code 39 Insulation 16 21 L Lead cross section 12 25 LED 11 31 Line filter 14 M Mating connector 6 Minimum free space 19 Ministep 46 Motor cable 25 Motor...

Page 58: ...mode 8 Shielding 23 Short circuit 31 33 Signal level 13 Start Stop frequency 28 Step resolution 12 45 Stepper motor 12 22 Supply voltage 12 T Technical Data 12 Touch voltage 17 Trade marks 52 U Unter...

Page 59: ......

Page 60: ...194 Gr benzell Germany Tel 49 0 8142 503 0 Fax 49 0 8142 503 190 E Mail info phytron de www phytron de Phytron Inc 600 Blair Park Road Suite 220 Williston VT 05495 USA Tel 1 802 872 1600 Fax 1 802 872...

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