TECHNICAL SPECIFICATIONS ELECTROMEN STEPPER MOTOR CONTROLLERS

Transcription

1 TECHNICL SPECIFICTIONS ELECTROMEN STEPPER MOTOR CONTROLLERS

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3 EM- STEPPER MOTOR CONTROLLER 40V FETURES Bipolar chopper Wide operating voltage range Full and half step operation -settable phase currents uxiliary oscillator cceleration ramp, 3-speed Self recovery fuse Rail mounting base fittable EM- is bipolar-chopper type stepper motor controller. Bipolar operation suits most stepper motors and provides the best torque. Phase current is set to desired level using chopping type current limit. The phase current ( current limit ) can be set in seven different levels using jumpers. wide phase current set range makes it possible to use the device with several different motors. EM-M also utilizes steady state current hold, in other words when the motor is stopped the controller decreases phase current, this feature reduces both the motor and controller thermal loss. Two steady state current hold modes are settable. The controller features an auxiliary oscillator, which has fifteen preprogrammed frequencies. The frequency is set with four control inputs. uxililary oscillator in EM- has also an acceleration ramp feature, which can be used to change frequencies flexibly, so that the motor will start up reliably even at high frequencies. There are three acceleration ramp intervals, that can also be bypassed. The inputs operate with so called negative logic, in other words the inputs are activated with connecting the input to ground, the inputs also work with TTL-logic level control. The power state of EM- has thermal protection for overload, the device has also self recovery fuse that protects the controller from over current and reversed input voltage polarity. TECHNICL DT: EM- BLOCK DIGRM Operating voltage -40Vdc Idle current approx. 40m / (0m shutdown "0") Current set 0.5; 0.3; 0.5; 0.3; 0.5; 0.9; and.0 Steady state I hold approx. 35 or % of current set Voltage loss 3V when Im= Fuse self recovery. ux. osc. freq. 0, 50, 00, 00, 300 Hz 400, 00, 800, 000 Hz.5; ;.5; 3; 3.5; 4 khz Freq. precision typ. % Digital control "off" when Uin 4-30V or open "on" when Uin 0-V Step freq. max. 9kHz Operating temp C Dimensions x5x5mm Weight approx. 00g FULL- / HLF STEP SHUTDOWN DIRECTION STEP UX OSCILLTOR STEP LOGIC PTC FUSE + REGULTION - STEDY STGE CURRENT HOLD CCELERTION RMP POWER STGE CURRENT LIMIT PHSE CURRENT INPUT 5 3 SM 4

4 OPERTING INSTRUCTIONS EM- Supply voltage -40Vdc filtered. Control inputs are activated using switches, or 0-5V voltage signals, or NPN-open collector outputs. 0V gnd full / half direction step input shutdown speed speed speed 3 speed 4 Current, steady state current hold and ramp are set with jumpers STEP: - full step switch on or 0V half step switch off or 5V DIRECTION: - Forward switch on or 0V Backwards switch off or 5V STEP-INPUT: - TTL or 0-5V pulse, trigs with falling edge SHUTDOWN: - switch on or 0V CHOOSING UXILIRY OSCILLTOR FREQUENCIES: - activate with switch on or 0V steady state current hold current set ramp mm mm CURRENT SET Phase current setting map ' B B' stepper motor 59mm 5mm supply 0V supply -4V STEDY STTE CURRENT HOLD When the motor is not run the current set changes to current hold. Steady state current hold is set either to 33% or % 33% % UXILIRY OSCILLTOR The aux. oscillator produces preprogrammed frequencies, the frequencies are set with four digital inputs. The aux. oscillator also features ramp, that can be used to change frequencies flexible, with better motor start up. Small frequencies change directly, but frequencies above 400 Hz change with slope. CUTION! ux. oscillator cannot be used with pulse input at the same time. ramp off ( direct ) fast ( Hz 0.s.) middle ( Hz 0.4s.) slow ( Hz 0.s.) freq./hz stop switches 3 4

5 EM-38 STEPPER MOTOR DRIVER 3-4V microstepping and presettable function inputs FETURES - Bibolar chopper -, /, /4.../4 steps - Four preset function inputs - PNP or TTL control - Quiet run current control - cceleration / deceleration ramps - DIN-rail base mountable EM-38 is a bipolar-chopper type microstepping steppermotor controller. The bipolar operation principle suits most stepper motors and provides the best torque. The microstepping function also enables great performance at low rpm. The stepping and current regulation has been synchronized, giving a smooth and quiet operation. There are different stepping options to choose from, ranging from full- to /4-step operation. This provides various possibilities for different speed applications. The controller has its own auxiliary oscillator, which can be used for pre-set speed driving. The pre-set speeds can be activated by using 4 digital function inputs. The oscillator features an acceleration ramp function, which allows frequencies to be altered flexibly. The motor will also start up reliably even to higher frequencies and it is possible to shift to the desired velocity with out pace drop. The auxiliary oscillator incorporates an indexing part, which offers the possibility of running presettable operational sequences. These secuences can be activated with the 4 digital inputs. The sequence is a movement with selected speed, direction and distance (as steps). ll the inputs are activated with positive logic commands. So the commands and functions are activated by connecting the input to a positive voltage. Control can also be done with TTL-logic level commands. ll of the controller settings are made digitally, using the separate setting device, EM-3 Interface Unit. With this device the settings are easily copied to an other or even to multiple controllers. EM-38 BLOCK DIGRM Operating voltage Idle current Current settings uxliary oscillator Frequency accuracy Ramp adjust Control level Max. step freq. Operating temp. Dimensions Weight -35Vdc n. 0m ( step 0. ) Hz typ. 0.5% 0.-5s ( 0 to 0000Hz ) "on" when Uin 4-30V "off" when Uin 0-V or open 5kHz 0-50 C 8x.5x5mm 00g 4 3 5V max. 0m DISBLE DIRECTION STOP / RESET STEP IN UXIRY STEP OSCILLTOR 0,5 PTC FUSE STEPPING LOGIC usteps...4 REGULTION POWER STGE PHSE CURRENT SETTING SM 5 B B STRT / STOP RMP CONTROL INPUT CONFIGURTION ll control inputs 4kohm (step in = kohm) 0kohm INDEX COUNTER ND SPEED MEMORY FOR PRE-SET FUNCTIONS SERIL PORT FOR PRMETER SETTING

6 CONNECTIONS Operating voltage -35Vdc, ripple smaller than 0%. The card has no internal fuse. The use of an external fuse is recommended. Incorrect supply polarity can damage the controller. ll control inputs work with positive control 4-30V. Inputs can be controlled with PLC or TTL signals. 5V auxiliary output (terminal ) can source max. 0m. CONTROL -inputs STEP IN is the input for stepping pulses. One steps is done with the positive edge of the input pulse. DIR/STOP/RESET input is normally used to choose the rotational direction. If preset functions are used (terminal 8 to ) this input can act as a stop input, and if preset sequence is used it will also reset the sequence counter. This input is triggered with up going pulse edge. DISBLE will shut down power stage and hold it disabled, this input has the highest priority. But it will not reset a sequence. So it is recommended to stop and reset functions before releasing disable to avoid any possible uncontrolled startup. PRESET IN -4 are presettable function inputs. These are used to activate chosen preset function. Function parameters include speed, direction, and distance in steps. If stepping distance is chosen to be zero, the drive will be continued as long as input is selected or STOP is activated. In other words the function works as preset speed driving. PRMETER SETTING The card settings are made with a EM-3 Interface Unit or Ementool Lite PC soft-ware and EM-8 USB-dongle. EM-3 is connected to a red connector on the card. t first it will display the cards type and program version. nswering yes for LOD and EDIT alternative the cards parameters are retrieved and displayed as a list that can be browsed with the arrow keys. djustment is done with +/- keys. The adjusted parameters are saved by pressing the SVE key for about seconds. fter this, a notification will appear that that the new values has been SEND and SVED. By choosing the MONITOR function, you can monitor the cards operation. Status LED codes continuous - power on disable input on - slow blinking temp. limit disable - fast blinking,5mm 4mm status LED -35V 0V gnd ' 5mm 59mm stepper motor dir / reset in step in disable EM B B' preset in preset in preset in 3 preset in 4 5V 0m out EM-3 PRMETER EFFECT.The stepping mode determines how much motor moves when card receives a step pulse. The most precise results are achieved with so called micro-stepping (partial step) setting and the highest possible resolution is /4-motor step agains one incoming step pulse..ramp setting is common for acceleration- and deceleration. Ramp is in use with preset functions. 3.The current drop function limits the current to the set percentace during the rest-stage. This reduces the amount of the heat that motor has to dissipate. Notice. Lower values than 00% can reduce precision in micro-stepping driving. 4. Phase current limiting during the drive. 5. and. are not in use..-. These are to determine preset functions which are activated with PRESET IN # inputs. There are four preset functions available to be determined..-0. Parameters to select the preset direction..-4. Parameters to set the stepping frequency = speed 5.-. Parameters for stepping amount = distance. For example: Par.5 set to 393 and Par. set to 4 will result in 4393 steps total when terminal 8 (preset in ) is activated. Notice. The movement is in ratio to the used stepping mode. With /4 mode the movement is smallest, that is: 4393/4 = /4 full steps MONITORBLE VLUES. last activated preset function. sequence step down counter to zero 3. Step counter. Reset with a new sequence. PRMETERS of EM-38 prog. default values in brackets.. Stepping mode ( 0- ) [) 0 = full step = half step = quarter step 3 = /8 step 4 = / step 5 = /3 step = /4 step. Ramp time 0.-5s ( -50 ) [0] 3. Current s after stop ( -4 ) [4]. 00% ( = normal ). 50% ( reduced ) 3. 5% ( reduced ) 4. 0% ( current disabled ) 4. Phase current 0.-3 ( -30 ) [0] 5. not in use (0-). not in use (0-) Preset run directions. preset. 0=fwd =rev [0] 8. preset. 0=fwd =rev [] 9. preset 3. 0=fwd =rev [0] 0.preset 4. 0=fwd =rev [] Preset run frequencies. preset Hz ( ) [30]. preset Hz ( ) [30] 3. preset Hz ( ) [00] 4. preset Hz ( ) [00] Index run counting values step Setting 0= continuous run 5. preset ( 0-999) [0]. preset x 0³ ( 0-000) [0]. preset ( 0-999) [0] 8. preset x 0³ ( 0-000) [0] 9. preset ( 0-999) [0] 0. preset x 0³ ( 0-000) [0]. preset ( 0-999) [0]. preset x 0³ ( 0-000) [0] 3. min start freq Hz ( ) [0]

7 EM-3 STEPPER MOTOR MICROSTEPPING CONTROLLER UNIT -45V FETURES: Bipolar chopper Wide supply voltage range Full-, half-, quarter-, and /8-step operation 8-programmable phase currents uxiliary oscillator cceleration- and braking ramp Self recovery fuse Very high efficiency Low heat dissipation Rail mounting base available EM-3 is bipolar-chopper type stepper motor controller. Bipolar operation suits most stepper motors and provides the best torque. The microstepping feature gives high performance also at low rpm. The power stage is mosfet-type so it runs with very high efficiency. There are four stepping modes: full, half, quarter and /8. Desired mode is set with two control inputs. The phase current ( current limit ) can be set in eight different levels using dip-switches. wide phase current set range makes it possible to use the device with several different motors. The controller features an auxiliary oscillator, which has preprogrammed frequencies. The frequency is set with three control inputs. uxililary oscillator in EM-3 has also an acceleration ramp feature, which can be used to change frequencies flexibly, so that the motor will start up reliably even at high frequencies. The acceleration ramp time is set with a trim. The inputs operate with so called positive logic, in other words the inputs are activated with connecting the input to positive voltage. The inputs also work with TTL-logic level control. The power state of EM-3 has self recovery fuse that protects the controller from over current and reversed input voltage polarity. TECHNICL DT: Operating voltage -45Vdc Idle current approx. 5m (enable "0") Current set 0.5;,0;.5;.0;.5; 3.0; 3,5 and 4.0 Voltage loss V when Im= Fuse 4 self recovery. ux. osc. freq. 00, 500, 000, 000 Hz 3000, 5000, 8000 Hz Ramp speed 0,...3s ( Hz) ux. freq. precision better than 0,5% Digital control "on" when Uin 4-30V "off" when Uin 0-V Step freq. max. 5 khz Operating temp C Dimensions 8x3x35mm Weight approx. 90g V ENBLE STEP MODE STEP MODE DIRECTION STEPPING UX. OSCILLTOR EM-3 BLOCK DIGRM STEPPING LOGIC REGULTION CCELERTION RMP 4 PTC FUSE SELECT POWER STGE CURRENT SET PHSE CURRENT INPUT B SM

8 EM-3 WIRING ND INSTLLTION Supply voltage -45Vdc, ripple less than 0% Make sure that the current feed capability of the voltage source is adequate for the application. The undervoltage situation can cause undesired effects for the function. The phase current is set with PHSE CURRENT switch ( see the table below ). Notice that the motor do not always need the nominal phase current. Often the motor works better with lower than the nominal current. Find the best current for your application, but do not exceed the nominal current of the motor. Control inputs are activated using switches or voltage signal. Driver has a positive control logic V = "on", 0-V or OPEN = "off" There are four stepping modes : full, half, /4 and /8. The full-step is good for higher speeds. The /8-step gives best resolution on positioning use, and also the smoothest run on low speeds. Stepping mode is selected with STEP MODE inputs & B ( look at table below ). If used with external stepping frequency source, connect frequency signal to STEP PULSE input. Incoming pulse level should be 4-30V, frequency max.5khz and minimum pulse lenght 5us. Internal stepping source (aux. oscillator) is set with UX. OSC. inputs, and 3 ( see the table ). ux. oscillator includes also the acceleration RMP. It gives a smooth start towards the selected frequency. The ramp time can be adjusted from 0. to 3sec. The UX. OSC. frequencies and the RMP time are based on 0MHz crystal frecuency. The chrystal can be changed to be anything between 4...0MHz. The UX. OSC. frequencies and ramp time are changed in the same proportion. ENBLE has the highest priority. NOTE. If ENBLE input is "off" the output stage is turned off, (output current is off) and also the UX. OSC is reset. So every time when the ENBLE input is turned "on" the UX. OSC. starts with the acceleration ramp. DIRECTION input is used to change the rotating direction. Direction change does not include the RMP function in it self. But if it is used with the ENBLE input the ramp and the smooth direction change can be achieved. gnd (0V) aux. osc in aux. osc in aux. osc in 3 step mode in B step mode in direction step pulse in enable 5V max 0m STEP MODE SET aux. oscillator acceleration ramp set: from 0, to 3seconds. crystal 0MHz phase current set full step: input and B "off" half step: input "on", B "off" /4 step: input "off", B"on" /8 step: input and B "on" FUSE supply link on...3v link off...45v "on" "off" 4 mm mm PHSE CURRENT SET 0.5 all "off".0 and 4 "on", others "off".5 and 5 "on", others "off".0,,4,5 "on", others "off".5 3 and "on", others "off" 3.0,3,4, "on", others "off" 3.5,3,5, "on", others "off" 4.0 all "on" supply -3V supply 0V ' B B' stepper motor 80 mm 8 mm UX. OSCILLTOR FREQ. (with 0MHz crystal) stop all aux. osc. input "off" 00Hz in "on", others "off" 500Hz in "on", others "off" 000Hz in, "on", others "off" 000Hz in3 "on", others "off" 3000Hz in,3 "on", others "off" 5000Hz in,3 "on", others "off" 8000Hz all aux. osc. input "on"

9 EM-8- STEPPER MOTOR MICROSTEPPING CONTROLLER UNIT 0-80V FETURES: Bipolar chopper Wide supply voltage range Full-, half-, quarter-, and /8-step operation 8-programmable phase currents uxiliary oscillator cceleration- and braking ramp Power reduction Very high efficiency Low heat dissipation Rail mounting base available EM-8- is bipolar-chopper type stepper motor controller. Bipolar operation suits most stepper motors and provides the best torque. The microstepping feature gives high performance also at low rpm. The power stage is mosfet-type so it runs with very high efficiency. There are four stepping modes: full, half, quarter and eighth. Desired mode is set with two control inputs. The phase current ( current limit ) can be set in eight different levels using dip-switches. wide phase current set range makes it possible to use the device with several different motors. utomatic power reduction will drop phase current when stepping pulses stop coming. The controller features an auxiliary oscillator, which has preprogrammed frequencies. The frequency is set with three control inputs. uxililary oscillator in EM-8- has also an acceleration ramp feature, which can be used to change frequencies flexibly, so that the motor will start up reliably even at high frequencies. The acceleration ramp time is set with a trim. The inputs operate with so called positive logic, in other words the inputs are activated with connecting the input to positive voltage. The inputs also work with TTL-logic level control. TECHNICL DT: EM-8 BLOCK DIGRM Operating voltage 0-80Vdc Idle current approx. 5m (enable "0") Current set 0,8;,4; ;, 3,; 3,8; 4,4; 5,0 Voltage loss V when Im= ux. osc. freq. 00, 500, 000, 000 Hz 3000, 5000, 8000 Hz Ramp speed 0,...3s ( Hz) ux. freq. precision better than 0,5% Digital control "on" when Uin 4-30V "off" when Uin 0-V or open Stepping options,/,/4,/8 step Power reduction -0% Power reduction delay 00ms from last pulse Step freq. max. 5 khz Operating temp C Dimensions 90x0x30mm Weight approx. 80g RUN/STOP STEP MODE STEP MODE DIRECTION STEPPING UX OSCILLTOR CONTROL GND REG STEPPING LOGIC POWER REDUCTION POWER STGE CURRENT SET PHSE CURRENT CCELERTION RMP B SM

10 EM-8- WIRING ND INSTLLTION Supply voltage 0-80Vdc, ripple less than 0% Make sure that the current feed capability of the voltage source is adequate for the application. The undervoltage situation can cause undesired effects for the function. The phase current is set with PHSE CURRENT switch ( see the table below ). Notice that the motor do not always need the nominal phase current. Often the motor works better with lower than the nominal current. Find the best current for your application, but do not exceed the nominal current of the motor. Control inputs are activated using switches or voltage signal. Driver has a positive control logic V = "on", 0-V or OPEN = "off" There are four stepping modes : full, half, /4 and /8. The full-step is good for higher speeds. The /8-step gives best resolution on positioning use, and also the smoothest run on low speeds. Stepping mode is selected with STEP MODE inputs & B ( look at table below ). If used with external stepping frequency source, connect frequency signal to STEP PULSE input. Incoming pulse level should be 4-30V, frequency max.5khz and minimum pulse lenght 5us. Internal stepping source (aux. oscillator) is set with UX. OSC. inputs, and 3 ( see the table ). ux. oscillator includes also the acceleration RMP. It gives a smooth start towards the selected frequency. The ramp time can be adjusted from 0. to 3sec. The UX. OSC. frequencies and the RMP time are based on 0MHz crystal frecuency. The chrystal can be changed to be anything between 4...0MHz. The UX. OSC. frequencies and ramp time are changed in the same proportion. ENBLE has the highest priority. NOTE. If ENBLE input is "off" the output stage is turned off, (output current is off) and also the UX. OSC is reset. So every time when the ENBLE input is turned "on" the UX. OSC. starts with the acceleration ramp. DIRECTION input is used to change the rotating direction. Direction change does not include the RMP function in it self. But if it is used with the ENBLE input the ramp and the smooth direction change can be achieved. gnd (0V) aux. osc in aux. osc in aux. osc in 3 step mode in B step mode in direction step pulse in enable 5V max 0m STEP MODE SET aux. oscillator acceleration ramp set: from 0, to 3seconds. crystal 0MHz phase current set full step: input and B "off" half step: input "on", B "off" /4 step: input "off", B"on" /8 step: input and B "on" off power reduction on "on" "off" 0 mm 0 mm PHSE CURRENT SET 0.8 all "off".4 and 4 "on", others "off".0 and 5 "on", others "off".,,4,5 "on", others "off" 3. 3 and "on", others "off" 3.8,3,4, "on", others "off" 4.,3,5, "on", others "off" 5.0 all "on" supply 0-80V supply 0V ' B B' stepper motor 85 mm 90 mm UX. OSCILLTOR FREQ. (with 0MHz crystal) stop all aux. osc. input "off" 00Hz in "on", others "off" 500Hz in "on", others "off" 000Hz in, "on", others "off" 000Hz in3 "on", others "off" 3000Hz in,3 "on", others "off" 5000Hz in,3 "on", others "off" 8000Hz all aux. osc. input "on"

11 EM-34 STEPPER MOTOR DRIVER -4V microstepping and presettable function inputs FETURES - Bibolar chopper -, /, /4.../4 steps - Four preset function inputs - PNP or TTL control - Quiet run current control - cceleration / deceleration ramps - DIN-rail base mountable EM-34 is a bipolar-chopper type microstepping steppermotor controller. The bipolar operation principle suits most stepper motors and provides the best torque. The microstepping function also enables great performance at low rpm. The stepping and current regulation has been synchronized, giving a smooth and quiet operation. There are different stepping options to choose from, ranging from full- to /4-step operation. This provides various possibilities for different speed applications. The controller has its own auxiliary oscillator, which can be used for pre-set speed driving. The pre-set speeds can be activated by using 4 digital function inputs. The oscillator features an acceleration ramp function, which allows frequencies to be altered flexibly. The motor will also start up reliably even to higher frequencies and it is possible to shift to the desired velocity with out pace drop. The auxiliary oscillator incorporates an indexing part, which offers the possibility of running presettable operational sequences. These secuences can be activated with the 4 digital inputs. The sequence is a movement with selected speed, direction and distance (as steps). ll the inputs are activated with positive logic commands. So the commands and functions are activated by connecting the input to a positive voltage. Control can also be done with TTL-logic level commands. ll of the controller settings are made digitally, using the separate setting device, EM-3 Interface Unit. With this device the settings are easily copied to an other or even to multiple controllers. EM-34 BLOCK DIGRM Operating voltage Idle current Current settings uxliary oscillator Frequency accuracy Ramp adjust Control level Max. step freq. Operating temp. Dimensions Weight -35Vdc n. 0m 0. - ( step 0. ) Hz typ. 0.5% 0.-5s ( 0 to 0000Hz ) "on" when Uin 4-30V "off" when Uin 0-V or open 5kHz 0-50 C 8x.5x5mm 00g 4 3 5V max. 0m DISBLE DIRECTION STOP / RESET STEP IN UXIRY STEP OSCILLTOR 0,5 PTC FUSE STEPPING LOGIC usteps...4 REGULTION POWER STGE PHSE CURRENT SETTING SM 5 B B STRT / STOP RMP CONTROL INPUT CONFIGURTION ll control inputs 4kohm (step in = kohm) 0kohm INDEX COUNTER ND SPEED MEMORY FOR PRE-SET FUNCTIONS SERIL PORT FOR PRMETER SETTING

12 CONNECTIONS Operating voltage -35Vdc, ripple smaller than 0%. The card has no internal fuse. The use of an external fuse is recommended. Incorrect supply polarity can damage the controller. ll control inputs work with positive control 4-30V. Inputs can be controlled with PLC or TTL signals. 5V auxiliary output (terminal ) can source max. 0m. CONTROL -inputs STEP IN is the input for stepping pulses. One steps is done with the positive edge of the input pulse. DIR/STOP/RESET input is normally used to choose the rotational direction. If preset functions are used (terminal 8 to ) this input can act as a stop input, and if preset sequence is used it will also reset the sequence counter. This input is triggered with up going pulse edge. DISBLE will shut down power stage and hold it disabled, this input has the highest priority. But it will not reset a sequence. So it is recommended to stop and reset functions before releasing disable to avoid any possible uncontrolled startup. PRESET IN -4 are presettable function inputs. These are used to activate chosen preset function. Function parameters include speed, direction, and distance in steps. If stepping distance is chosen to be zero, the drive will be continued as long as input is selected or STOP is activated. In other words the function works as preset speed driving. PRMETER SETTING The card settings are made with a EM-3 Interface Unit or Ementool Lite PC soft-ware and EM-8 USB-dongle. EM-3 is connected to a red connector on the card. t first it will display the cards type and program version. nswering yes for LOD and EDIT alternative the cards parameters are retrieved and displayed as a list that can be browsed with the arrow keys. djustment is done with +/- keys. The adjusted parameters are saved by pressing the SVE key for about seconds. fter this, a notification will appear that that the new values has been SEND and SVED. By choosing the MONITOR function, you can monitor the cards operation. Status LED codes continuous - power on disable input on - slow blinking temp. limit disable - fast blinking,5mm 4mm -35V V EM-34 ' stepper motor B B' 8mm 8mm 8 5V 0m out preset in preset in preset in 3 preset in 4 dir / reset in step in disable EM-3 gnd status LED PRMETER EFFECT.The stepping mode determines how much motor moves when card receives a step pulse. The most precise results are achieved with so called micro-stepping (partial step) setting and the highest possible resolution is /4-motor step agains one incoming step pulse..ramp setting is common for acceleration- and deceleration. Ramp is in use with preset functions. 3.The current drop function limits the current to the set percentace during the rest-stage. This reduces the amount of the heat that motor has to dissipate. Notice. Lower values than 00% can reduce precision in micro-stepping driving. 4. Phase current limiting during the drive. 5. and. are not in use..-. These are to determine preset functions which are activated with PRESET IN # inputs. There are four preset functions available to be determined..-0. Parameters to select the preset direction..-4. Parameters to set the stepping frequency = speed 5.-. Parameters for stepping amount = distance. For example: Par.5 set to 393 and Par. set to 4 will result in 4393 steps total when terminal 8 (preset in ) is activated. Notice. The movement is in ratio to the used stepping mode. With /4 mode the movement is smallest, that is: 4393/4 = /4 full steps MONITORBLE VLUES. last activated preset function. sequence step down counter to zero 3. Step counter. Reset with a new sequence. PRMETERS of EM-34 prog. default values in brackets.. Stepping mode ( 0- ) [] 0 = full step = half step = quarter step 3 = /8 step 4 = / step 5 = /3 step = /4 step. Ramp time 0.-5s ( -50 ) [0] 3. Current s after stop ( -4 ) [4]. 00% ( = normal ). 50% ( reduced ) 3. 5% ( reduced ) 4. 0% ( current disabled ) 4. Phase current 0.- ( -0 ) [0] 5. not in use ( 0-). not in use ( 0- ) Preset run directions. preset. 0=fwd =rev [0] 8. preset. 0=fwd =rev [] 9. preset 3. 0=fwd =rev [0] 0.preset 4. 0=fwd =rev [] Preset run frequencies. preset Hz ( ) [30]. preset Hz ( ) [30] 3. preset Hz ( ) [00] 4. preset Hz ( ) [00] Index run counting values step Setting 0= continuous run 5. preset ( 0-999) [0]. preset x 0³ ( 0-000) [0]. preset ( 0-999) [0] 8. preset x 0³ ( 0-000) [0] 9. preset ( 0-999) [0] 0. preset x 0³ ( 0-000) [0]. preset ( 0-999) [0]. preset x 0³ ( 0-000) [0] 3. min start freq Hz ( ) [0]