ElectricMotorcycleForum.com

Any one encounterd Sevcon CAN Link Down before?

The first time it happend; the bike was charging overnight; So i did not notice it.
Than it happend when I was driving. I suddenly lost power.

Because the Logs showed the SEVCON CAN link was lost; my first tought was that it could be a broken wire.
I checked the wiring; and I could not find any damage. I also tried to see if the CAN Link would go down; if I was fumbling with the CAN wirering. Sadly this is also not the case...

I'm a bit afraid that my SEVCON is dying.... Did anyone have a SEVCON dying in 5 years or after 21.000 km?







the first time it happend to my bike was apperently when it was charging. But only now I am noticing it when i'm driving.
It seems like


03103     01/26/2024 00:28:18   Charging                   PackTemp: h 23C, l 18C, AmbTemp:  6C, PackSOC: 91%, Vpack:112.861V, BattAmps:  -8, Mods: 01, MbbChgEn: Yes, BmsChgEn: No
 03104     01/26/2024 00:38:18   Charging                   PackTemp: h 24C, l 18C, AmbTemp:  6C, PackSOC: 92%, Vpack:113.396V, BattAmps:  -8, Mods: 01, MbbChgEn: Yes, BmsChgEn: No
 03105     01/26/2024 00:42:27   Sevcon CAN Link Down   
 03106     01/26/2024 00:42:29   Sevcon CAN was lost.  Restarting.   
 03107     01/26/2024 00:42:29   Module 00                  vmod: 113.651V, batt curr: 65527A
 03108     01/26/2024 00:42:29   Module 01                  vmod: 0V, batt curr: 0A
 03109     01/26/2024 00:42:29   Sevcon Turned Off   
 03110     01/26/2024 00:42:29   DEBUG: Sevcon Contactor Drive OFF   
 03111     01/26/2024 00:42:29   DEBUG: Sevcon Has Turned Off Contactor Drive   
 03112     01/26/2024 00:42:29   Module 00                  vmod: 113.798V, batt curr: 65527A
 03113     01/26/2024 00:42:29   Module 01                  vmod: 0V, batt curr: 0A
 03114     01/26/2024 00:42:29   DEBUG: Module 00 Contactor is now Open   
 03115     01/26/2024 00:42:29   INFO:  Disabling Calex 720W Charger 0   
 03116     01/26/2024 00:42:29   INFO:  Disabling Calex 1200W Charger 1   
 03117     01/26/2024 00:42:32   Sevcon Turned On   
 03118     01/26/2024 00:42:42   Precharge Timed Out. CapV mc1: 0V CapV mc2: 0V   
 03119     01/26/2024 00:42:42   Module 00                  vmod: 113.355V, batt curr: 0A
 03120     01/26/2024 00:42:42   Module 01                  vmod: 0V, batt curr: 0A
 03121     01/26/2024 00:42:42   Sevcon Turned Off   
 03122     01/26/2024 00:42:45   Sevcon Turned On   
 03123     01/26/2024 00:42:46   Sevcon CAN Link Up   
 03124     01/26/2024 00:42:47   DEBUG: Sevcon Contactor Drive ON.   
 03125     01/26/2024 00:42:47   Module 00                  vmod: 113.346 maxsys: 113.346 minsys: 113.346 diff: 0.000 vcap: 101.75 prechg: 89%
 03126     01/26/2024 00:42:47   DEBUG: Module 00 Contactor is now Closed   
 03127     01/26/2024 00:42:47   INFO:  Enabling Calex 720W Charger 0   
 03128     01/26/2024 00:42:47   INFO:  Enabling Calex 1200W Charger 1   
 03129     01/26/2024 00:48:18   Charging                   PackTemp: h 24C, l 18C, AmbTemp:  6C, PackSOC: 94%, Vpack:113.888V, BattAmps:  -9, Mods: 01, MbbChgEn: Yes, BmsChgEn: No
 03130     01/26/2024 00:58:18   Charging                   PackTemp: h 24C, l 19C, AmbTemp:  6C, PackSOC: 96%, Vpack:114.431V, BattAmps:  -9, Mods: 01, MbbChgEn: Yes, BmsChgEn: No




looking back it is really scary that the CAN link goes down while driving

 05589     04/20/2024 15:32:22   Riding                     PackTemp: h 13C, l 12C, PackSOC:100%, Vpack:115.621V, MotAmps:  86, BattAmps:  22, Mods: 01, MotTemp:  26C, CtrlTemp:  13C, AmbTemp:   5C, MotRPM:1013, Odo:21463km
 05590     04/20/2024 15:33:22   Riding                     PackTemp: h 13C, l 12C, PackSOC:100%, Vpack:116.153V, MotAmps: -35, BattAmps:  -8, Mods: 01, MotTemp:  30C, CtrlTemp:  14C, AmbTemp:   4C, MotRPM:1168, Odo:21463km
 05591     04/20/2024 15:33:23   Sevcon CAN Link Down   
 05592     04/20/2024 15:33:23   Sevcon CAN Link Up   
 05593     04/20/2024 15:34:22   Riding                     PackTemp: h 13C, l 12C, PackSOC:100%, Vpack:115.584V, MotAmps: -18, BattAmps:  -1, Mods: 01, MotTemp:  33C, CtrlTemp:  15C, AmbTemp:   4C, MotRPM: 672, Odo:21464km
 05594     04/20/2024 15:35:22   Riding                     PackTemp: h 13C, l 12C, PackSOC: 99%, Vpack:114.819V, MotAmps:  46, BattAmps:  19, Mods: 01, MotTemp:  34C, CtrlTemp:  16C, AmbTemp:   5C, MotRPM:1558, Odo:21465km
 05595     04/20/2024 15:36:22   Riding                     PackTemp: h 13C, l 12C, PackSOC: 99%, Vpack:114.545V, MotAmps:  63, BattAmps:  22, Mods: 01, MotTemp:  35C, CtrlTemp:  17C, AmbTemp:   5C, MotRPM:1225, Odo:21466km
 05596     04/20/2024 15:37:01   Sevcon CAN Link Down   
 05597     04/20/2024 15:37:01   Sevcon CAN Link Up   
 05598     04/20/2024 15:37:22   Riding                     PackTemp: h 13C, l 12C, PackSOC: 98%, Vpack:112.564V, MotAmps: 118, BattAmps:  73, Mods: 01, MotTemp:  37C, CtrlTemp:  17C, AmbTemp:   5C, MotRPM:2418, Odo:21467km
 05599     04/20/2024 15:38:22   Riding                     PackTemp: h 14C, l 12C, PackSOC: 97%, Vpack:111.581V, MotAmps:  91, BattAmps:  75, Mods: 01, MotTemp:  39C, CtrlTemp:  19C, AmbTemp:   5C, MotRPM:3186, Odo:21468km
 05600     04/20/2024 15:39:22   Riding                     PackTemp: h 14C, l 12C, PackSOC: 97%, Vpack:113.934V, MotAmps:   0, BattAmps:   1, Mods: 01, MotTemp:  39C, CtrlTemp:  19C, AmbTemp:   5C, MotRPM:  63, Odo:21469km
 05601     04/20/2024 15:40:05   Sevcon CAN Link Down   
 05602     04/20/2024 15:40:05   Sevcon CAN Link Up   
 05603     04/20/2024 15:40:22   Riding                     PackTemp: h 14C, l 13C, PackSOC: 96%, Vpack:111.141V, MotAmps:  73, BattAmps:  73, Mods: 01, MotTemp:  43C, CtrlTemp:  21C, AmbTemp:   5C, MotRPM:3795, Odo:21470km
 05604     04/20/2024 15:41:22   Riding                     PackTemp: h 15C, l 13C, PackSOC: 95%, Vpack:109.889V, MotAmps: 103, BattAmps: 102, Mods: 01, MotTemp:  43C, CtrlTemp:  20C, AmbTemp:   5C, MotRPM:3794, Odo:21472km
 05605     04/20/2024 15:42:22   Riding                     PackTemp: h 15C, l 13C, PackSOC: 94%, Vpack:111.722V, MotAmps:  44, BattAmps:  31, Mods: 01, MotTemp:  44C, CtrlTemp:  19C, AmbTemp:   5C, MotRPM:2760, Odo:21473km






And in the worse case; the CAN link went down and I lost power while driving on the main road...

 05686     04/20/2024 16:51:22   Riding                     PackTemp: h 20C, l 18C, PackSOC: 44%, Vpack: 99.172V, MotAmps:  80, BattAmps:  72, Mods: 01, MotTemp:  51C, CtrlTemp:  17C, AmbTemp:   5C, MotRPM:3155, Odo:21547km
 05687     04/20/2024 16:52:22   Riding                     PackTemp: h 20C, l 18C, PackSOC: 43%, Vpack: 98.874V, MotAmps:  88, BattAmps:  84, Mods: 01, MotTemp:  52C, CtrlTemp:  18C, AmbTemp:   5C, MotRPM:3320, Odo:21549km
 05688     04/20/2024 16:53:22   Riding                     PackTemp: h 20C, l 18C, PackSOC: 42%, Vpack: 100.95V, MotAmps: -35, BattAmps: -15, Mods: 01, MotTemp:  51C, CtrlTemp:  17C, AmbTemp:   5C, MotRPM:1845, Odo:21550km
 05689     04/20/2024 16:54:10   Sevcon CAN Link Down   
 05690     04/20/2024 16:54:12   Sevcon CAN was lost.  Restarting.   
 05691     04/20/2024 16:54:12   Module 00                  vmod: 100.744V, batt curr: 1A
 05692     04/20/2024 16:54:12   Module 01                  vmod: 0V, batt curr: 0A
 05693     04/20/2024 16:54:12   Sevcon Turned Off   
 05694     04/20/2024 16:54:12   DEBUG: Sevcon Contactor Drive OFF   
 05695     04/20/2024 16:54:12   DEBUG: Sevcon Has Turned Off Contactor Drive   
 05696     04/20/2024 16:54:13   Module 00                  vmod: 100.764V, batt curr: 0A
 05697     04/20/2024 16:54:13   Module 01                  vmod: 0V, batt curr: 0A
 05698     04/20/2024 16:54:13   Throttle Disabled:         Sevcon Starting Up,     
 05699     04/20/2024 16:54:13   DEBUG: Module 00 Contactor is now Open   
 05700     04/20/2024 16:54:15   Sevcon Turned On   
 05701     04/20/2024 16:54:17   SEVCON CAN EMCY Frame      Error Code: 0x3100, Error Reg: 0x04 Sevcon Error Code: 0x45c5, Data: 0x08 0x07 0x00 0x88 0x01 , Unknown
 05702     04/20/2024 16:54:17   SEVCON CAN EMCY Frame      Error Code: 0x5000, Error Reg: 0x44 Sevcon Error Code: 0x46c3, Data: 0x02 0x01 0x00 0x54 0x01 , Unknown
 05703     04/20/2024 16:54:17   Sevcon CAN Link Up   
 05704     04/20/2024 16:54:17   INFO:  Bmvolts: 100062, Cmvolts: 138812, Amps: 0, RPM: 922   
 05705     04/20/2024 16:54:17   SEVCON CAN EMCY Frame      Error Code: 0x2000, Error Reg: 0x46 Sevcon Error Code: 0x54c1, Data: 0x00 0x00 0x02 0xa0 0x05 , Unknown
 05706     04/20/2024 16:54:17   INFO:  Bmvolts: 100000, Cmvolts: 138750, Amps: 0, RPM: 923   
 05707     04/20/2024 16:54:17   SEVCON CAN EMCY Frame      Error Code: 0x3100, Error Reg: 0x46 Sevcon Error Code: 0x45c8, Data: 0x08 0xac 0x78 0xa0 0x01 , Unknown
 05708     04/20/2024 16:54:17   INFO:  Bmvolts: 100000, Cmvolts: 138687, Amps: 0, RPM: 912   
 05709     04/20/2024 16:54:19   Contactor Welded   
 05710     04/20/2024 16:54:19   Sevcon Turned Off   
 05711     04/20/2024 16:54:22   Sevcon Turned On   
 05712     04/20/2024 16:54:22   Riding                     PackTemp: h 20C, l 18C, PackSOC: 42%, Vpack:100.882V, MotAmps:   0, BattAmps:   0, Mods: 00, MotTemp:-100C, CtrlTemp:5436C, AmbTemp:   5C, MotRPM:   0, Odo:21551km
 05713     04/20/2024 16:54:23   SEVCON CAN EMCY Frame      Error Code: 0x3100, Error Reg: 0x04 Sevcon Error Code: 0x45c5, Data: 0x08 0x07 0x00 0x54 0x01 , Unknown
 05714     04/20/2024 16:54:23   SEVCON CAN EMCY Frame      Error Code: 0x2000, Error Reg: 0x06 Sevcon Error Code: 0x54c1, Data: 0x00 0x00 0x02 0x01 0x05 , Unknown
 05715     04/20/2024 16:54:23   SEVCON CAN EMCY Frame      Error Code: 0x5000, Error Reg: 0x46 Sevcon Error Code: 0x46c3, Data: 0x00 0x00 0x00 0x00 0x01 , Unknown
 05716     04/20/2024 16:54:23   Sevcon CAN Link Up   
 05717     04/20/2024 16:54:23   INFO:  Bmvolts: 100125, Cmvolts: 132125, Amps: 0, RPM: 0   
 05718     04/20/2024 16:54:23   SEVCON CAN EMCY Frame      Error Code: 0x3100, Error Reg: 0x46 Sevcon Error Code: 0x45c8, Data: 0x08 0x45 0x78 0xa0 0x01 , Unknown
 05719     04/20/2024 16:54:23   INFO:  Bmvolts: 100187, Cmvolts: 132000, Amps: 0, RPM: 0   
 05720     04/20/2024 16:54:25   Contactor Welded   
 05721     04/20/2024 16:54:25   Sevcon Turned Off   
 05722     04/20/2024 16:54:28   Sevcon Turned On   
 05723     04/20/2024 16:54:29   SEVCON CAN EMCY Frame      Error Code: 0x3100, Error Reg: 0x04 Sevcon Error Code: 0x45c5, Data: 0x07 0x07 0x00 0x10 0x01 , Unknown
 05724     04/20/2024 16:54:29   Sevcon CAN Link Up   
 05725     04/20/2024 16:54:29   INFO:  Bmvolts: 100187, Cmvolts: 120125, Amps: 0, RPM: 417   
 05726     04/20/2024 16:54:29   DEBUG: Sevcon Contactor Drive ON.   
 05727     04/20/2024 16:54:29   Module 00                  vmod: 100.982 maxsys: 100.982 minsys: 100.982 diff: 0.000 vcap: 120.125 prechg: 118%
 05728     04/20/2024 16:54:29   SEVCON CAN EMCY Frame      Error Code: 0x   0, Error Reg: 0x00 Sevcon Error Code: 0x45c5, Data: 0x00 0x00 0xff 0xa0 0x01 , Unknown
 05729     04/20/2024 16:54:29   INFO:  Bmvolts: 100250, Cmvolts: 113687, Amps: 0, RPM: 438   
 05730     04/20/2024 16:54:31   ERROR: Cannot Connect Module 00! modv=100996mV, maxv=100996mV, minv=100996mV, raw0:100975mV, raw1:0mV, cur0:0A, cur1:0A, diff_allowed: 909mV   
 05731     04/20/2024 16:54:31   Module 00                  vmod: 100.972V, batt curr: 0A
 05732     04/20/2024 16:54:31   BMS0 retry count is now 1   
 05733     04/20/2024 16:54:31   SEVCON CAN EMCY Frame      Error Code: 0x3100, Error Reg: 0x05 Sevcon Error Code: 0x45c9, Data: 0x01 0x31 0x68 0xb0 0x01 , Unknown
 05734     04/20/2024 16:54:32   SEVCON CAN EMCY Frame      Error Code: 0x5000, Error Reg: 0x45 Sevcon Error Code: 0x5101, Data: 0x06 0x02 0x03 0xa0 0x04 , Unknown
 05735     04/20/2024 16:54:32   SEVCON CAN EMCY Frame      Error Code: 0x   0, Error Reg: 0x41 Sevcon Error Code: 0x45c9, Data: 0x01 0x51 0x30 0xb8 0x01 , Unknown
 05736     04/20/2024 16:54:33   ERROR: Cannot Connect Module 00! modv=101021mV, maxv=101021mV, minv=101021mV, raw0:100996mV, raw1:0mV, cur0:0A, cur1:0A, diff_allowed: 909mV   
 05737     04/20/2024 16:54:33   Module 00                  vmod: 101.001V, batt curr: 0A
 05738     04/20/2024 16:54:33   BMS0 retry count is now 2   
 05739     04/20/2024 16:54:33   Module 00                  vmod: 101.023 maxsys: 101.023 minsys: 101.023 diff: 0.000 vcap: 13.75 prechg: 13%
 05740     04/20/2024 16:54:34   DEBUG: Sevcon Contactor Drive OFF   
 05741     04/20/2024 16:54:35   Precharge Lost. CapV: 5V 0V   
 05742     04/20/2024 16:54:35   Module 00                  vmod: 101.018V, batt curr: 0A
 05743     04/20/2024 16:54:35   Module 01                  vmod: 0V, batt curr: 0A
 05744     04/20/2024 16:54:35   Sevcon Turned Off   
 05745     04/20/2024 16:54:38   Sevcon Turned On   
 05746     04/20/2024 16:54:39   Sevcon CAN Link Up   
 05747     04/20/2024 16:54:39   DEBUG: Sevcon Contactor Drive ON.   
 05748     04/20/2024 16:54:39   Module 00                  vmod: 101.083 maxsys: 101.083 minsys: 101.083 diff: 0.000 vcap: 89.75 prechg: 88%
 05749     04/20/2024 16:54:40   DEBUG: Module 00 Contactor is now Closed   
 05750     04/20/2024 16:54:47   Throttle Disabled:         Kickstand Sw,     
 05751     04/20/2024 16:54:47   DEBUG: Module scheme changed from Running mode to Stopped mode   
 05752     04/20/2024 16:54:47   DEBUG: Module mode Change Does Not Require Disconnect   
 05753     04/20/2024 16:54:52   DEBUG: Module scheme changed from Stopped mode to Running mode   
 05754     04/20/2024 16:54:52   DEBUG: Module mode Change Does Not Require Disconnect   
 05755     04/20/2024 16:55:22   Riding                     PackTemp: h 20C, l 18C, PackSOC: 43%, Vpack:101.358V, MotAmps: -35, BattAmps: -17, Mods: 01, MotTemp:  48C, CtrlTemp:  17C, AmbTemp:   5C, MotRPM:2120, Odo:21551km
 05756     04/20/2024 16:56:22   Riding                     PackTemp: h 20C, l 18C, PackSOC: 42%, Vpack: 99.872V, MotAmps:  71, BattAmps:  52, Mods: 01, MotTemp:  48C, CtrlTemp:  17C, AmbTemp:   5C, MotRPM:2535, Odo:21552km
 05757     04/20/2024 16:57:22   Riding                     PackTemp: h 20C, l 18C, PackSOC: 42%, Vpack:  99.68V, MotAmps:  71, BattAmps:  52, Mods: 01, MotTemp:  47C, CtrlTemp:  17C, AmbTemp:   4C, MotRPM:2570, Odo:21553km
 05758     04/20/2024 16:58:22   Riding                     PackTemp: h 20C, l 18C, PackSOC: 41%, Vpack:100.074V, MotAmps:  45, BattAmps:  32, Mods: 01, MotTemp:  47C, CtrlTemp:  17C, AmbTemp:   5C, MotRPM:2533, Odo:21554km
 05759     04/20/2024 16:59:22   Riding                     PackTemp: h 20C, l 18C, PackSOC: 41%, Vpack:101.028V, MotAmps: -35, BattAmps:  -8, Mods: 01, MotTemp:  46C, CtrlTemp:  16C, AmbTemp:   4C, MotRPM:1156, Odo:21555km
 05760     04/20/2024 17:00:22   Riding                     PackTemp: h 20C, l 18C, PackSOC: 40%, Vpack:  98.78V, MotAmps:  81, BattAmps:  73, Mods: 01, MotTemp:  48C, CtrlTemp:  17C, AmbTemp:   4C, MotRPM:3104, Odo:21556km
 05761     04/20/2024 17:01:22   Riding                     PackTemp: h 20C, l 18C, PackSOC: 39%, Vpack: 98.893V, MotAmps:  70, BattAmps:  64, Mods: 01, MotTemp:  49C, CtrlTemp:  18C, AmbTemp:   4C, MotRPM:3195, Odo:21557km

"an entierly unque feature to zero motor cycles" Not sure what that means.

Not sure how it works on energicas; but do you have to start your bike with the kill switch in off posiiton?



But i actually do really like the fact that we live in a time where you get more functions simply because of a software update.
I don see a park mode aparing on my ICE bike which did not have it before

See link:

https://prismic-io.s3.amazonaws.com/zero-cms-disco/6d9c5f82-1947-4c3b-b101-664763627a78_OM-FST-MY22.pdf

intresting points to me:

• Extended range charing.
• Cypher store overview
• Yellow Key
• Parking Mode operation
• On-board Charing Rating
• Nominal Capacity, Premium SR/R 13.7 kWh - Maximum 15.6 kWh

* estimated powerpack life also chagnes; so looking at this they are really using different or more cells
[/list]

Hey all,

what are your toughs?

So,,, I find the side case rack of zero a bit... meh, because of:

• the 11 pounds at each side.
• the fact that it takes a while to remove the rack
• the new position of the turn light indicators

I went for the DIY version,, but now I am a bit stuck... Or, I'm not sure how to proceed.
The first start of the frame is in the pictures below. It is not finished yet, since I need to make the same parts at the other side. And at the back of the frame there will be a bar from left to right of the motorcycle (Red hand drawing). This to ensure the frame would not touch the the tire.

I'm not sure if I need to add another bar (the one in green) to ensure the case will not touch my rear break.

I'm also not sure which side case I want to use yet. Probably something like the image below since I have a Top case which is also in the same style.



Do you guys have any tips and tricks?
Things to look out for?

I'm mostly concerned about the width of the boxes. Anyway to ensure my side case will not hit the road when I'm in a turn?

Heey all,

If you are like me and you want to your bike to fight the wind for you  you might want to add an Commuter screen and Handguards to your motorcycle.
I have to say it makes commuting a lot more comfortable. Your hands will feel less cold.

While the Communter screen fits perfectly on the Zero S, the Handguards have a bit more trouble.

Since the commuter screens aluminium bars are in the way of the handguards mount there is need for some synergy (See the first image) . Some duct tape, bolts, nuts and a 3D printed part makes this synergy easy (See the second image).
Take note. At this point I am not sure how much of a hand guard, your handguards are. If you are crashing, the 3D printed will probably not hold back a lot of force. It will protect your hands a bit,, but don’t expect it to save your hands. If you do some math, you can determine how much you hands are protected. But I leave that up to yourself.

Hi all.



I am new here and since a few month the owner of a new Zero S 14.4 21kW from 2019.

I was wondering what your experiences are with driving 142 km. I manage to overcome it with 80km/h and about 11% left on the battery.
The specification state... that it should be possible to drive 145 km while driving 113km/h....

According to the manual the range depends on

• Speed - 80km/h
• Number of stops -  none,
• flattnes of the land -  It is the Netherlands... over 145 there was a climb of 50m or so
• smoothness of the pavement -  I guess the Netherlands have good pavements
• riding style -  Really drove 80km/h for about 95% of the way
• being streamlined -  I have a commute screen. and i myself am only 1,75m. I usually lean a bit forward.. not entiererly tucking behind the screen but most of the wind wil only reach my helmet
• reduced cargo -  I am about 90 kg including my jacket and all
• weather temperature -  about 1 - 5 degrees Celcius
• amount of wind -  marginable
• Dryness of the roads -  It had rained. When i drove it was not
• tire pressure -  Have not checked that in a while. However I am able to ride comfortably
• belt tension -  I have tensioned it about 300km ago
• battery balancing -  I have left the charger in over night.

This was done 2 times over 2 days. The first time I had 11% of battery left. The second time about 14%.

• What I noticed is that the battery percentage is decreasing quite fast at the start of the trip, and than slows down. Is anyone else noticing this? Does anyone know what the battery percentage indicates? Is it the battery voltage? or the Power capacity that is left?
• Does anyone have experience with the range of the motorcyle when driving 113km/h? I don't think I will make it 141km when driving 113km/h....
• With what speed do you think I could travel 142 km?  - with the Zero S 14.4kW without powertank ofcourse

I look forward to your reactions.
And advice on how I can find out how fast I can travel 142 km.

With kind regards,
And have a nice christmas eve.



Edit. I have the answer!
It of course depends on the speed with which you drive and the ambient temperature as a quite significant influence.
In the Winter: 107 minutes at 80km/h
In the summer: 95 minutes at 90km/h

See post below for explenations