The Grin Cyclery
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1. 6 of 8 Max Current Set the CA s current limit This value may be further scaled down by the throttle and or the Aux Voltage and or the temperature limit A Gain Feedback gain for the current control loop Generally it should be increased until you start to feel 11 22 2012 11 31 AM The Grin Cyclery 7 of 8 C d http www ebikes ca store store_CAV3 php the current limit being rough or oscillating and then scaled back about 30 Max Power This sets a power limit in watts It has very similar effect as a current limit except that it is independent of the battery voltage W Gain Same story as A Gain above only now applied to the power limiting feedback loop 8 SETUP PAS SENSOR Preview line shows of PAS poles and the state of both the PAS and DIR digital inputs where the up arrow is 5V and the down arrow is OV a b PAS Poles This is the number of pulses which corresponds to one full rotation of the pedal sensor It is 8 for a THUN sensor while the Chinese magnet ring PAS sensors can vary from 5 to 12 Dir Pirty This controls whether 5V on the Dir pin is considered forward or reverse pedaling If the Dir pin is not connected then it should be set to 5V Fwd For a quadrature encoded device you will tell from trial and error if this needs to be set to FWD or REV for your encoder setup Quadrtr This optional mode can be enabled if you have a quadrature encoded PAS sensor such as a THUN It tak2. RX Green i Dir Blue IN _tTy Red 5 _ RPM Yellow Sleeve Trq Green Gnd Black Pad Descriptions The following shows the solder pad locations on the circuit board itself for anyone who is doing their own custom wiring harness directly into the Cycle Analyst enclosure 3 of 8 11 22 2012 11 31 AM The Grin Cyclery Cycle Analyst 3 Rev 2 ebikes ca http www ebikes ca store store_CAV3 php Serial Thermistor Potentiometer Throttle 18 G su POT G_ 5U Thi ep gq Be E e ES E z E O o 3 0z ED gt w w CP Explanation of Top Row Accessory Pads Throttle In Thi This is the input signal for the user throttle It can accept signals in the range of 0 5V When no throttle is attached the signal will be pulled down to OV Temperature Probe NTC This is the input for a temperature signal The pad has a precision pull up resistor to 5V so it can be used with a simple 10K NTC thermistor between the pad and ground Alternately an actively driven signal from 0 5V such as from an LM35 type IC can be fed to this pad and scaled linearly into a temperature reading Auxiliary Input Pot The purpose of this input is to allow on the fly adjustments of one of the CA s limit values ie the current limit speed limit or power limit That can be accomplished either via a potentiometer or for discrete settings with a multi position switch and resistor dividers A
3. Down Ramp This can be used to clamp how fast the throttle output will ramp downwards For safety reasons you would generally leave this at a high value so that the system can shut off promptly but there can be times where a slower disengagement of motor power is preferred 6 SETUP SPEED LIMS Preview Line shows the speed limit of the selected preset a b Max Speed Upper speed limit The CA will roll back it s throttle output voltage if you start to exceed this Strt Speed This is a minimum starting speed that must be reached before the CA will allow an output It is useful for RC drives or systems with sensorless controllers that do not work well from a dead start The rider must pedal the bike up to Strt Speed before power will be applied IntSGain Integral feedback gain for speed PID control loop Lower values give smoother control and less likelihood of hunting but can increase the time it takes for the speed limit to stabilize PSGain Proportional feedback term for speed control loop Displayed in terms of Volts mph or kph So if it is set to 0 5V kph then for each km hr you go above the speed limit the throttle output will immediately drop by 0 5V DSGain Differential feedback term for speed control loop This is used to dampen oscillations from speed limiting Values in the 100 300 range seem to work well 7 SETUP POWER LIMS Preview Line shows the amps limit and watts limit of the selected preset a b
4. This is the capacity of the battery pack in amp hours For lithium and nickel chemistries the nominal advertised Ah is generally correct With SLA you should take the Peukert effect into account and scale the rated Ah down by 30 35 So for instance a 12Ah SLA has a useful capacity closer to 8Ah e Vit Cutoff This is the low voltage rollback When the CA detects the battery voltage falling below VIt Cutoff it will scale back the power draw to keep the voltage from dropping any lower f V Gain This is the feedback gain setting for the low voltage rollback A higher number will result in the power scaling back more abruptly when voltage falls below the cutoff g TotCyc This is the total number of charge cycles on the battery pack assuming that the CA was reset after each full recharge 5 of 8 11 22 2012 11 31 AM The Grin Cyclery h http www ebikes ca store store_CAV3 php TotAhrs This is the total life cycle amp hours that have been pulled from the battery to date 4 SETUP THROT IN Preview line shows measured voltage of throttle input the equivalent throttle that this voltage corresponds to and the throttle mode amps speed pass thru etc a b Cntri Mode Allows you to select the function of the users input throttle i Pass Thru User throttle is linearly remapped from the input throttle range to the output throttle range and then passed on to the output ii Current A User throttle controls the battery
5. 0 5V signal range is allowed and it defaults to 5V if left disconnected Digital Ebrake EBK This input has an onboard pull up to 5V to be used with an ebrake cutoff switch When the signal is shorted to ground the CA thinks that your brake levers are depressed and forces the CA s throttle output to OV 10V This is an output pad specifically for supplying power to the THUN torque sensing bottom bracket It can potentially be used as a low current power source by other PAS sensors too however care must be taken as this supply is not fused or protected and a short to ground will damage the CA Current draw from this line should be limited to 15mA max and only with 48V or lower batteries Pedal Sensor Input RPM This is a digital input for a pedal cadence sensor It has an onboard pull up resistor so it can work with an active hall effect device or a simple magnet and reed switch pickup Pedal Direction Input Dir This is used to distinguish between forwards and reverse pedal rotation for PAS sensors that provide this signal It can Support both a pure direction signal eg 5V fwd OV reverse ora quadrature type encoder such as on the THUN sensors Torque Sensor Trq This is a 0 5V input for a torque signal The human pedal torque can be measured either via a torque sensing bottom bracket THUN FAG or via a DIY tension meter on the bike chain itself The torque Signal here is multiplied by the calculated pedal RPM signal to derive the
6. Allows you to choose between 3 different battery packs 3 SETUP BATTERY Preview line shows nominal voltage and chemistry of selected battery pack a A B C Lets you choose the current battery preset provided that that you ve enabled either 2 or 3 battery packs All values following will be linked accordingly to battery A B or C including the cycles and total Ah Statistics b Chemistry Select the cell chemistry of your pack i LiMn Lithium Manganese most common 18650 style cell rechargeable lithium chemistry somewhat steady drop from 4 2V down to 3 6V and then a more rapid fall off to 3 0V ii LiPo Lithium Polymer lightweight pouch style cell has an almost linear voltage drop from 4 2V to 2 9 V cell iii LiFe Lithium Iron Phosphate Heaviest lithium chemistry full charge is 3 6V cell but then sits almost completely flat at 3 3V cell until the very end of discharge iv SLA Sealed Lead Acid heavy old standby v NiMH Nickel Metal Hydride once a very common rechargeable battery now largely displaced by lithium NiCad packs can also use this option as the voltage discharge profiles are nearly identical c String Number of cells strung together in series to make the battery pack For LiMn and LiPo 36V is 10S 48V is 13S For LiFe 36V is 12S while 48V can be either 15S or 16S For SLA each 12V lead acid brick is made up of 6 cells so multiply the number of 12V packs by 6 to get the total cell count d Capacity
7. current from OA up to the value in Max Current If using this mode it makes sense to have your CA s Max Current equal to or lower than the controller s current limit otherwise only part of the range will be mapped iii Speed kph User throttle directly controls the speed of the bike from O up to the value in Max Speed iv Power W User throttle controls the power to the motor controller from 0 up to the value in Max Power In this mode you should not have your Max Power set much higher than your battery voltage times the controller current limit v Off CAUTN User throttle is ignored CA s output will default to Max Throttle until one of the limits is exceeded This is included for legacy support for people using a V3 CA on a controller designed for V2 CA DP connector which have a separate throttle feeding the controller and the CA can only pull that signal down If this mode is selected with the CA s output going directly to the throttle input of a controller then it will cause the bike to take off on power up Min Input This is the voltage threshold for the lower bounds of the input throttle When the throttle signal is less than this then it is assumed the throttle is off It should be set at least 0 2V higher than the voltage present on the throttle when the throttle is off Max Input This sets the upper bound that is considered the full throttle voltage It is possible to play with this value to adjust your throttle rang
8. that is proportional to the amount of human pedal torque enabling proportional assist 9 SETUP TRQ SENSOR Preview line shows the measured voltage from the torque sensor pad as well as the corresponding N m of torque that this correlates to if the torque sensor is enabled a Sensr Type i Disbled Torque sensor signal is ignored and will be read as 0 N m ii Thun BB This will preload the settings for the Thun torque sensing bottom bracket iii Custom Lets you input a custom torque sensor with an offset and scaling factor from V to Nm Trq Scale This only shows up if you have Custom torque sensor selected and it sets the scaling factor for converting voltage from the torque sensor into Newton meters For devices that sense torque on only one side of the crank it should be doubled in order to simulate the net left and right pedal torques The value can be set either positive or negative Trq Offset This also only displays if you have a torque sensor enabled and it sets the current voltage reading on the torque sensor to the O torque value The number on the left shows the torque offset stored in memory while the number on the right is real time voltage reading from the sensor Holding the button will shift the real time reading into the new offset value Note that magnetostrictive torque sensors like THUN and FAG don t return to the same zero point very well after high torque excursions Asst Level This sets the amount of p
9. The Grin Cyclery http www ebikes ca store store_CAV3 php Thinking Outside the Four Wheeled Box ebikes ca Home Store FAQ Simulator Spoke Calculator Cycle Analyst Info Lights Info Torque Arm Info Troubleshootin Projects Events Contact Us e Purchasing amp Shipping Info e Conversion Kits e Parts o Batteries o Controllers amp Throttles o Cycle Analysts o Lights o Motors o Misc Parts amp Connectors e Unicycles e View Cart O Search Temporary CA V3 purchase page This is a purchasing and info page for Beta Models of the V3 Cycle Analyst as well as the compatible THUN torque sensing bottom brackets The story of this project is largely covered in the Endless Sphere thread beta announcement here http endless sphere com forums viewtopic php f 4 amp t 37964 In a nutshell the V3 device may interest you if you want to add a torque sensing bottom bracket to your bike if you have a motor that can make use of temperature monitoring and thermal rollback or if you have a powerful setup that can benefit from advanced throttle controls or if you just like to play with handy gadgets If these features are not required then the recently upgraded and less expensive V2 3 Cycle Analyst would be more suitable Beta Product The V3 Cycle Analyst is currently in its very last beta state and all of the planned software functionality has largely been finalized with the B20 code Even so please be aware of the following points e Yo
10. e and sensitivity but normally it would be set about 0 2V lower than your actual full throttle voltage Fault Volt This sets a fault detection threshold If the throttle signal input is higher than Fault Volt the CA will assume there is a fault and not treat it as a full throttle This situation can happen for instance if the throttle s ground wire gets disconnected while the 5V and Signal lines are still attached 5 SETUP THROT OUT Preview line shows the current output throttle range and whether it is in Volts or mS pulse width a b Output Mode Lets you select between a steady voltage output from the CA s Throttle Output line or a RC servo style pulse output Min Output This is the lower output throttle range You can use the pass thru throttle mode to see at exactly what voltage your controller starts to respond to a throttle signal and then set Min Output about 0 2V less than this For RC speed controllers it would normally be 0 9 1 0 mS Max Output This is the maximum voltage or pulse width that the CA will send to the controller Many controllers have an overvoltage throttle fault so you want to make sure the CA s throttle output does not exceed this Up Ramp This sets a firm maximum ramp up rate for the throttle output signal and can be used to smooth out harsh kick on powerful systems A lower value means a longer ramp up time 500 will go O to full in about 150 mS while a value of 50 will take 1 5 seconds
11. eed control it can be advantageous to put several magnets on d TotDist Lets you pre load the odometer 2 SETUP PRESETS Preview line shows number of mode presets 1 2 or 3 and number of batteries also 1 2 or 3 which are enabled a Preset Cnt i Only 1 Effectively disables mode presets ii 1 amp 2 Enabled Allows you to easily toggle between two distinct sets of CA limit settings iii 1 2 amp 3 Enabled Allows you to setup and toggle between 3 distinct CA limit settings b Preset 1 Name Lets you select a name for the 1st CA preset There are currently seven names to choose from ex Economy OffRoad Assist etc and suggestions for more are welcome Assigning a name does NOT preload any particular set of limit values so you will still need to manually input the various current speed power limits throttle and PAS mappings that you want for each preset c Preset 2 Name Lets you select a name for the 2nd CA preset ex Economy OffRoad Assist etc This option only shows up if you have at least two mode presets enabled d Preset 3 Name Lets you select a name for the 3rd CA preset ex Economy OffRoad Assist etc This option only shows up if you have all 3 mode presets enabled e Crnt Prset Select which of the 3 possible presets is currently active f Batteries i Batt A only Only one battery pack setup ii Batts A amp B Allows you to easily toggle between two different battery packs iii Batts A B C
12. er to the device and it is waiting for the Cycle Analyst to be turned on Or if the CA is already powered up then it is waiting for you to turn it off and then on again You have 30 seconds in which to turn on the device and once that happens the Cycle Analyst will be detected and you will see a message showing the firmware upload progress followed by a verify process and finally an Upload Complete The current firmware release is Beta20 which is also bundled in the updater utility download This will work fine for any devices currently programmed with Beta16 or later firmware If you have a way old unit with Beta15 then you will first need to program with the CA3B19 file below and then after that with the B20 e CA3 Beta20 Hex File e CA3B19 Hex File Connector Pinout The V3 CA device has a cable bundle bringing out all the signal wires into suitably terminated JST SM plugs The following shows the standard CA V3 wiring harness connector details for all cables coming out of the V3 CA Thermistor 4 Gnd Black N Red ee SS NTC Yellow CA DP Plug 1 Gna rac SV Red es S Blue i a S White Throttle Input i Gnd Black 6 gt Sp Yellow Thi Green ThO Green Output Power Jack _ 5V_ Red i Auxiliary Pot 1 Gnd Black Es Pot White ON Se Vbatt Red Ehrake Cutoff Gnd Black Gnd Black 4 EBK Blue Communication Cable _ 10V White Torque PAS 4 Gnd abies ile ae nee
13. es advantage of the changing edge on the Dir pad to enable faster detection of a stop in pedal rotation It also prevents back and forth rocking of the pedals to give a false PAS signal Strt Delay x18mS This number determines the minimum amount of time in 18mS increments between PAS pulse intervals before the CA assumes that you are pedaling The smaller the number the faster you need to be pedaling at take off before the CA s PAS mode will kick in Stop Delay This is the amount of time again in 18mS increments that needs to elapse between PAS pulses for the CA to assume that you have stopped pedaling Too long of a number will result in a delay from when you stop pedaling to motor power cutting out while too small of a number can result in PAS assist dropping out just because your pedal cadence has slowed down PAS Mode Select which pedal assist PAS mode is used i PAS Off With this setting pedal rotation or pedal torque does not drive the throttle output of the CA You can still see and log your cadence RPM and human watts but you must use a throttle to regulate the motor power ii RPM Cntrl With this setting if the user throttle is off but the CA detects that you are pedaling it will drive the controller with a full throttle output until one of the limit terms is reached iii Trq Cntrl With this setting if the user throttle is off but the CA detects that you are pedaling it will drive the controller with a current limit
14. human power on the CA and to provide proportional torque assist External Voltage Sense Vex The purpose of this pad is to allow for sensing high voltage batteries without the danger of bringing a high voltage line up to the Cycle Analyst The external battery must be scaled down to a 0 5V range and this will allow up to a 500V voltage display range on the CA as determined by the V V VSense value in calibration Serial Receive Rx This is a 0 5V TTL input signal for serial data communication into the CA used for reflashing the firmware Serial Transmit Tx This is the 0 5V TTL serial data transmission line It outputs a steady stream of info 9600 baud 8 bit for datalogging purposes and is also used by the bootloader to verify flash updates Explanation Standard CA DP Pads Negative Shunt Sense Lead S Connects to battery side of shunt must be within 0 5V of Gnd e Positive Shunt Sense Lead S Connects to controller side of shunt must be within 0 5V of Gnd e Throttle Over ride Output Thd This is the same as the Throttle output ThO after passing through a diode 4 of 8 It is used for legacy V2 style CA connections where the CA is only used to pull down a separate throttle signal Throttle Output ThO This is the direct throttle signal from the CA which can be connected directly to a controller throttle input line Speedo Pulse Input Sp Can be wired up with a reed switch and magnet speedometer sensor or connected d
15. irectly to one of the hall signals in a direct drive motor Battery Power V This is the V supply of the battery pack used both to power the CA and also to sense the battery voltage The maximum supply voltage with no accessories is 150V but this must be derated if there are 11 22 2012 11 31 AM The Grin Cyclery http www ebikes ca store store_CAV3 php other devices Torque Sensor Input Throttle etc also drawing power from the CA Setup Menu Details for Beta20 Firmware The setup menu is accessed by pressing and holding the eft button for several seconds or by holding the right button down while the CA is powered up It is a 2 level deep menu list organized into 13 high level categories to let you adjust over 60 different settings 1 SETUP SPDOMETER Preview line shows current units mi km current wheel size in inches Poles and the state of the speed sensor input up arrow 5V down arrow OV a Units Select between using units of kilometers or miles Notice that changing this will not rescale odometer speed limits etc b Circuf Exact wheel circumference in mm c Poles This is the number of pulses on the Sp pad that is considered one full wheel revolution For direct drive hub motors with a CA DP model it would be the number of magnet pole pairs in your hub usually between 8 to 23 If you have a CA DPS with external speed sensor it would be the number of magnets on your wheel usually 1 but for better low sp
16. ll both find the correct driver automatically if you enable it to search windows update otherwise you can download and install the VCP virtual com port drivers from FTDI http www ftdichip com Drivers VCP htm In order for the bootloader to work the Cycle Analyst must be externally powered up it won t get power just from the programming cable alone So either bring a laptop nearby to your ebike or have a battery or other source at hand to turn on the CA To update the firmware select the hex file you want to load select the serial COM port on your machine that is connected to the CA and then hit the button Update Firmware 2 of 8 11 22 2012 11 31 AM The Grin Cyclery http www ebikes ca store store_CAV3 php E Cycle Analyst Firmware Update Tool V1 1 Select Firmware Select Serial Port 2 Dropbox Manufacturing Cycle Analyst i Firmware CA3 B20 _NoCal hex w COMES w Update Firmware l Status Please cycle power to the device a Sy L __ W Cycle Analyst Firmware Update Tool 1 1 Select Firmware Select Serial Port 2 Dropbox Manufacturing Cycle Gnalyst Firmvwarell43 620 _NoCal hex wt coma ka Status Upload Progress 38 Now Flashing with 2 Dropbox ManuFacturing Cycle 4nalyst Firrnware C43 B20 NocCal hex Cycle Analyst 3 detected with bootloader version 0202 Please cycle power bo the device gt At that point the program will say Please cycle pow
17. o order CA3_Torquekit Stand Alone Shunt and CA USB Cable for adding pe In Stock 40 00 USD FRE Molded 1mOhm shunt with pass thru of throttle and 1 add to order Shunt CA3 l speedo wires for 3rd party controller integration In Stock m ill 195 00 USD ee a 4 e UNOR Thun X CELL RT Torque Sensor 120K 116mm 14 add to order z Spindle with connector cable to V3 CA In Stock 12 8 195 00 USD Ca en 4 e eer Thun X CELL RT Torque Sensor 120L 119mm 1 add to order 2 Spindle with connector cable to V3 CA In Stock 68 a 195 00 USD dd ao THUN 136L Thun X CELL RT Torque Sensor 136 mm Spindle 1 add to order T with connector cable to V3 CA InStock 7 8 For those wanting to use the proportional pedal assist functionality and or look at human power watts and pedal cadence we have the THUN torque sensors left in the 3 different spindle lengths above They work with 68mm threaded bottom bracket shells and are only available for square taper cranks For dimensional diagrams see the Thun cartridge length specifications Firmware Programming The CA firmware is updated via the communications port You will need to download and uncompress the following uploader program and launch the file CAFirmareUpdateTool exe Download CA V3 Update Tool V1 1 As well you will need the programming cable to be recognized as a COM port on your computer Windows XP and Windows 7 wi
18. r Type is selected This sets the scaling factor for converting the sensor voltage into degrees in units of Deg V d Thrsh Temp This is the temperature at which thermal rollback of the CA s current limit begins to kick in e Max Temp This is the temperature at which the thermal rollback will have brought the CA s current limit right down to 0 amps The current limit is scaled linearly down from Max Amps to zero amps as the temperature increases from Thrsh Temp to Max Temp 11 SETUP AUX POT Preview line shows measured voltage of auxiliary potentiometer input the equivalent full scale limit that this voltage corresponds to and the limit value that is being scaled amps speed watts etc a Aux Funct This determines the function of the auxiliary potentiometer input i Off Voltage on the POT pin is ignored ii Amps Lim Voltage on the POT pin linearly scales the current limit from 0 to Max Amps iii Speed Lim Voltage on the POT pin linearly scales the speed limit from O to Max Speed iv Power Lim Voltage on the POT pin linearly scales the power limit from 0 to Max Watts v PAS Level Voltage on the POT pin linearly scales the proportional PAS assist level from O to Asst Level b Min Aux In This sets the lower range of the auxiliary potentiometer input Any voltages less than this will be treated as zero c Max Aux In This sets the upper range of the auxiliary potentiometer input voltages higher than this will be
19. roportional assistance that is provided to your pedal input in units of mA of current per Newton meter of pedal torque For instance with the default 500mA Nm a pedal torque of 20 Newtons meters will result in 10A of current from the controller 50 Nm will draw 25A etc Asst Offset Enables you to set an offset torque at which point the proportional torque assist will kick in Positive values will mean that the rider must achieve that level of torque on the pedals before getting assist while negative values will produce a baseline motor power just from pedaling even with no torque and then additional pedal torque boosts this power further 10 SETUP TEMP SENSR Preview line shows the measured voltage from the temperature sensor pad as well as the corresponding temperature in degrees if a temperature scaling is enabled a Sensor Select which type if any of temperature sensor is connected to the NTC pin i Disabled Voltage on the NTC pin is ignored ii 10K Thrmstr Voltage on the NTC pin is scaled into degrees Celsius assuming a 10K NTC thermistor with a beta constant of 3900 iii Linear Type Voltage on the NTC pin is scaled linearly into a temperature reading based on a custom scale and offset 11 22 2012 11 31 AM The Grin Cyclery http www ebikes ca store store_CAV3 php b O Deg Only present if Linear Type is selected This represents the sensor voltage that is treated zero degrees c TScale Also only present if Linea
20. splay screen shows amps or watts on the lower left corner b Averaging This controls the time period for display averaging of the voltage and power readings The default of duration of 5 corresponds to a 300mS refresh rate while 6 would be 600mS 4 would be 150mS etc c RS232 Allows you to select between a 1Hz or 5Hz data output rate for data logging The 5Hz rate can show more interesting vehicle dynamics but the file size on long trips can become quite large d Vshutdown This is the threshold voltage at which the display shuts down and the CA powers off to save data It should not be set lower than 10V or else data may not save correctly Do not confuse this with the Vit Cutoff for low voltage pack protection e Stop Scrns This allows you to customize which of the 11 display screens shows up on the CA when the vehicle is stopped Each screen is listed in sequence with a 1 indicating that it shows up while a 0 means that it will be skipped f Movn Scrns This allows for an even smaller subset of screens to show up when you scroll through the CA s display when the vehicle is in motion Last Updated Nov 2012 CA V3 Purchase Page new store items and updated direct drive kits Ebikes ca 2012 Powered by Maian Cart v1 1 2006 2012 Maian Script World 8 of 8 11 22 2012 11 31 AM
21. treated as 100 12 SETUP CALIBRTION a Range Low range is for shunts that are in the 1 9mOhm range High range is selected for shunts that are 0 1 0 9 mOhm In high range mode all power units are shown in kW and current is displayed to 0 1A rather than 0 01A As well all of the current and power feedback calculations are also affected by the chosen range mode so an AGain of 50 in low range mode would be equivalent to 500 in the high range b RShunt The calibration for the current sense shunt resistor It is essential that this value match the shunt resistor that is used by the CA to sense current flow Most controllers with direct plug in CA connectors have resistances in the 1 5 6 mOhm range For high current shunts used in larger EV s they will typically not rate the shunt resistance but instead show the current draw that causes a specific voltage drop So a 200A 50mV shunt has a resistance of 5 0mV 200A 0 25mOhm c VScale This is used to calibrate the voltage display The factory calibration is about 31V V If you use an external voltage divider you would set this to match the voltage scaling ratio d Zero Amps Pressing the button here will take the current amperage readings as the zero amps reference After holding the button you will see two voltages on the screen which are the outputs of the two current amplifiers They should both be around 2 5V 13 SETUP PREFERENCS a Main Disp Here you can choose if the primary di
22. u will want to have the ability to reflash the firmware as new updates or possible bug fixes are released Any serial port adapter with a 0 5V TTL output will work if you are familiar with that stuff We also offer a USB gt TTL adapter cable with the correct terminals which you can also get direct from FTDI e Though there are no known issues in the current code it is possible for as yet undetected bugs in the code to cause the CA to freeze in a state where the throttle output is driven high If you are using the CA as your controller throttle input be sure to have a user accessible kill switch to cut power in this scenario e There is no supporting documentation other than what is on this page and the previously listed endless sphere thread A full fledged user manual will still take quite a while for us to produce V3 CA Device and Accessories Store Serial Description Price Click for p cap I usp details 150 00 USD 1 add to order l CA3 DP Version 3 Direct Plug Cycle Analyst fa endl 155 00 USD CA3 DPS Version 3 Direct Plug Cycle Analyst with separate 1 add to order Speedo Cable for geared or mid drive motors In Stock 22 00 USD add to order In Stock TTL gt USB cable for flash firmware reprogramming nae and data logging ipa 1 of 8 11 22 2012 11 31 AM The Grin Cyclery http www ebikes ca store store_CAV3 php 375 00 USD Package of THUN torque sensor CA V3 DPS CA3 1 add t
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