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Appendix A: Technical Details

A stepper motor can be used with different step resolutions, which are described in the first
part of this chapter. You’ll find the Boost and Current delay time functions in the second
part.

A1 Full Step / Half Step / Ministep

Full Step (FS)

The FULL STEP mode is the operating mode in which a 200 step motor, for example,
drives 200 steps per revolution. In the full step mode, both stepper motor phases are
permanently energized.

Fig. 18:

Phase current curves

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Summary of Contents for 10010115

Page 1: ...Manual 2112 A002 GB CLD Linear Power Stage For Stepper Motor with Plain Text Display...

Page 2: ......

Page 3: ...phytron 04 2009 Manual MA 2112 A002 GB CLD Linear Power Stage for Stepper Motor with Plain Text Display TRANSLATION OF THE GERMAN ORIGINAL MANUAL...

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: ...r 21 6 2 Wiring Schemes 22 6 3 Motor Cables 23 7 Input and Output Connectors 24 7 1 Signal Connector 24 7 2 Inputs 25 7 2 1 Push Pull or Open Collector Controlling 26 7 2 2 Logic Level 24 V or 5 V 26...

Page 6: ...rs which deliver load independent output currents The CLD is the preferred solution power stage for extreme applications e g measuring applications in which sensitive measures could be impaired by noi...

Page 7: ...riven set up of current values step resolution and other parameters Display of actual parameters test mode Display of currents voltage and temperature Diagnostics Low voltage or over temperature monit...

Page 8: ...10010118 input level 24 V Accessories CLD manual Phytron CD with ServiceBus Comm software ServiceBus Comm manual ServiceBus instruction set manual Supplementary parts are available Fan type Papst 614...

Page 9: ...and all settings are made by ServiceBus The parameter values are shown in the CLD display during the operation It is not possible to change parameters with the input keys acknowledged by S BUS ENABLE...

Page 10: ...Manual CLD 1 4 Schematic Diagram Fig 3 Schematic diagram CLD MA 2112 A002 GB 8...

Page 11: ...NONE DISP 2 NONE Password protection off Display OK S BUS DISABLED Stepper motor 2 phase stepper motors in 4 6 or 8 lead design with 0 5 to 2 APeak phase current Winding resistance 10 Ohm Winding ind...

Page 12: ...g are short circuit proofed In case of a short circuit no deactivation of the power stage and no error message occurs F1 Fuse 4 A slow Suitability of the device The device is used for mounting in the...

Page 13: ...wires Inputs Inputs are opto decoupled Triggering by push pull drivers or open collector Input level 5 V or 24 V depends on CLD version Signal level 5 V 24 V High 3 5 5 V 20 30 V Low 0 4 V 3 V Necess...

Page 14: ...tting of all error messages Waiting time after cut off the Reset signal about 500 msec Outputs Opto decoupled type Open Collector Darlington Imax 20 mA Umax 30 V UCE sat at 20 mA 1 V Ready The CLD is...

Page 15: ...fety Instructions 1 Please observe the earthing instructions chap 6 3 2 In case of supply voltages 24 V The CLD must only be operated if CLD housing and motor housing are connected to protective earth...

Page 16: ...X3 X4 connectors should be safely separated from mains The maximum voltage against protective earth must not exceed 60 VDC 9 Clearing the DEACTIVATION input or deselection with the DESELECT input or R...

Page 17: ...e supplied voltage The housing of the CLD must be grounded the motor can be grounded see Fig 4 Fig 4 PELV with SELV Supply Protective measure PELV for application of the UB should not exceed 50 VDC at...

Page 18: ...t is about 1 1 kg Use the mounting kit delivered with the device for rail mounting or wall mounting You may also use the mounting threads in the device s back plate for individual mounting solutions T...

Page 19: ...phytron Fig 5 Mountaing kits 17 MA 2112 A002 GB...

Page 20: ...epends on the phase current and cooling air flow follows from the de rating diagram see below The CLD can be operated without an external fan with motor currents up to about 0 4 Amps even at an ambien...

Page 21: ...train relief clamps 5 2 Accessories PS 10 24 Power Supply Unit The power supply unit PS 10 24 provide 10 A 24 VDC for the supply of the CLD Depended on the load the power supply unit is able to provid...

Page 22: ...200 F 50V capacitor for a sufficient buffer action of the supply voltage The DC supply voltage UB must not be grounded because the compensating choke in the CLD would be bypassed In this case the main...

Page 23: ...40 Vr m s or 57 V basic isolation design voltage acc to VDE0160 or EN50178 Stepper motors with 8 leads can be connected with the windings wired in parallel 1 or serial 2 The wiring scheme 3 with seri...

Page 24: ...Manual CLD 6 2 Wiring Schemes Fig 9 Connection diagrams for 4 6 and 8 wire stepper motors MA 2112 A002 GB 22...

Page 25: ...les is nearly neglectable For best electromagnetic compatibility EMC you must connect the shielding mesh to the CLD housing Use the cable clamps at the front side Free cable ends must be as free as po...

Page 26: ...and X4 I O connectors are used to connect the CLD with digital process control signals Warning Please check the input level of the CLD 5 V or 24 V corresponding to the controller 7 1 Signal Connector...

Page 27: ...on between control and power circuit The signals are active when current flows through the optocoupler The controlling via push pull driver confers optimum suppression of disturbances because always t...

Page 28: ...ntrolling via open collector is possible Fig 13 Open Collector controlling 7 2 2 Logic Level 24 V or 5 V CLD power stages are available in two versions with input level 5 V or 24 V The input level can...

Page 29: ...put is energized the motor current will always be the Boost current Although no control pulses arrive the stop current is not activated 7 2 4 Direction If the input optocoupler is powered the selected...

Page 30: ...t is not on conformance with the professional emergency stop circuit requirements 7 2 7 Deselect If the input optocoupler is energized the pulse inhibit is active If the input is not connected the CLD...

Page 31: ...powered off See also chap 7 2 6 7 3 2 Error This output opens at the error messages under voltage over current short circuit over temperature At the same time the drive system is deactivated to avoid...

Page 32: ...ly voltage drops under 20 V This error message can also occur if an external supply voltage of 24 V breaks down under load for a short time Over temperature Power Stage The temperature at the heat sin...

Page 33: ...phytron 8 The Menu Fig 15 Structogram of the menu 31 MA 2112 A002 GB...

Page 34: ...in the LCD display PHYTRON CLD With the button and of the menu all items of the upper menu level can be selected Status display Setup Test customer specific status displays Changes of parameters duri...

Page 35: ...x x A Setting of run stop and boost current in Ar m s IDELAY Current delay time in msec It is a proved method to keep to the run current level for a short time after the last step pulse arrived and a...

Page 36: ...temperature TE motor temperature TM Enter OK to confirm the input The selected parameters for example motor current and power stage temperature can be displayed permanently on the main menu NOSENS the...

Page 37: ...deactivated by the PX instruction code DISABLED ServiceBus off The operating parameters are configured by the menu driven input SW V The actual version number is shown RETURN The last menu item in the...

Page 38: ...he button e E By pressing the button the next letter can be selected If you confirm with OK the changes are saved TESTINPuts Input status display e g A b S d r A power stage activated b no Boost S pow...

Page 39: ...r message appears if you try to change parameters during the motor runs PASSWO FALSE The access on this menu item is inhibited If there are several errors at the same time the error message with the h...

Page 40: ...em LCDCTR Problem Display dark Eventually the temperature in the switching cabinet is too high Problem Error message over temperature Check the ventilation see chap 4 2 and current setups see chap 5 4...

Page 41: ...viceBus S BUS LOCKED The power stage is set to bus mode exclusive by ServiceBus Comm All settings with the menu buttons are ignored and only possible by ServiceBus Leaving this mode is only possible b...

Page 42: ...Select the exe program which goes with your system software and start it by double click The following window is shown on desktop after a successful installation Connect the CLD directly or via USB c...

Page 43: ...You ll find the Boost and Current delay time functions in the second part A1 Full Step Half Step Ministep Full Step FS The FULL STEP mode is the operating mode in which a 200 step motor for example dr...

Page 44: ...vered is almost the same Most of the resonance is suppressed The following diagram shows extent and direction of the holding torques of a 4 step motor during one revolution without and with torque com...

Page 45: ...2 Various advantages are obtained by the ministep mode The torque undulation drops when the number of ministeps is increased Resonance and overshoot phenomenae are greatly reduced the motor operation...

Page 46: ...uous operation and results in motor overheating However a lower phase current results in too flat acceleration and deceleration ramps Therefore different phase currents should be used Continuous opera...

Page 47: ...to 40 msec In ServiceBus mode the delay time can be programmed from 1 to 1000 msec in 15 steps Automatic change from run to stop current The ratio between both phase currents remains equal in the res...

Page 48: ...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 49: ...phytron Appendix C Declarations of Conformity 47 MA 2112 A002 GB...

Page 50: ...Manual CLD MA 2112 A002 GB 48...

Page 51: ...4 E Electromagnetic compatibility 23 Error 12 Error message 37 ESD protective measures 46 F Full step 41 Fuse 10 H Half step 42 I Inductivity 21 Input level 24 26 Input wiring diagram 25 Inputs 11 25...

Page 52: ...Bus Comm 6 Setup 33 Shielding mesh 23 Short circuit proof 10 Signal level 11 Site of operation 10 Start Stop frequency 27 Status display 32 Step resolution 9 41 Stepper motor 9 21 Strain relief 19 Sup...

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Page 56: ...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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