M21s 58th error

[fooad]

hi , how to fix this error
power input current protecting, current: 16.8a, voltage: 198.0v

[1715062664]

1715062664

[NotFuzzyWarm]

Your powerline voltage is too low - the miner requires at least 208VAC and preferably the voltage should be between 220-240VAC.
Only way to correct that is by using a boost transformer or an industrial-grade voltage regulator (the typical consumer-grade ones suck big time & burn out when tied to large constant loads) to raise the voltage.

[philipma1957]

you could be having a brownout due to summertime ac use in your area.

do you live in usa?

I can link a transformer for you.

what size is your circuit breaker?

20 amp

or 30 amp

I use a Norstar davr 5000 I purchased it from amazon in Jan of 2019

I reviewed it in feb 2019

it still works and is still in use.

it should be just okay for your gear.

I have a m21s. do you use whatsminer 5.0.2. to control it?

I have a thread on the whatsminer software as it is very good to monitor your gear.

my m21s is pretty power hungry.

https://www.amazon.com/gp/product/B07169Z3XX?


my review is there:

Philipma1957

"So I got this on Friday it is Sunday so 48 hours of testing so far. Plug two prong with and adapter for a USA two prong.
Inside is a large toroidal transformer. (Donut shape). My house is in USA AND I HAVE 240 volt lines installed. They can run as high as 243 - 245 volts. So I use this to keep unit at 220 volts. So I am doing 243 to 220 conversion. I will be using 1675 watts on this 24/7/365. I got the 5000 watt unit do to a large constant load.

In the manual the unit has a 22.7 amp rating for continous use. This means the circuit breaker feeding it must be 30 amps as 80% of 30 = 24amps which would mean your circuit breaker would be able to safely feed the unit 22.7 amps. Of 120 or 240 volt power.
It also means the interior wall wire needs to be 10 gauge to run 24 amps 24/7/365.

Here is my one problem with the unit and it is very important pair of safety issues. The cable supplied is a two prong with an adapter which lifts the ground. That is first safety issue. Second safety issue is the cable is 14 gauge not good enough to allow 22.7 amps continuously . I estimate that you should stay under 13amps maybe even 11 amps to be safe if you run it non-stop.

That would be 11 x 110 = 1210 watts if you are feeding 110 volts
Or 11 x 220 = 2410 watts if. You are feeding 220 volts.

On the good side. When I run my gear on this I use 1665 watts on my kill a watt meter. When I bypass this I use 1647 watts on my kill a watt meter. So this is 99%. Efficient or it costs only 1 % extra in power to,run it. My advice is don’t overload it due to a less then specked power cable. I will do more testing but I am sure that the 5000va model will be fine at 1675 watts."

that is my review from amazon.

  I am running an s17pro with it since last year it is still working, but it is on a 30 amp circuit that feeds 228 volts most of the time
It does drop to 190 volts once in a while and the 2600 watt draw from the s17 pro still works okay

[mikeywith]

Your powerline voltage is too low - the miner requires at least 208VAC and preferably the voltage should be between 220-240VAC.

ِAccording to the specs on pangolinminer the M21 uses P21 power supply which needs AC200-240V, will the PSU really trip at 2 volts lower? I ran out of regulated power in one place and I run 1*s17+ and 1 S17pro on two different phases, none of them is above 220v at any given time, one moves around the low 200v to the mid 190v, and to my surprise, this time with these two gears mining operations are going perfectly fine despite the warning from Bitmain to never run them below 200v (Nobody should attempt this).

The funny thing is when I tried this before on the same 17 series, they didn't want to run below 200v for long, is it possible that they reduced the sensitivity on these gears? did they improve them? maybe the firmware or complete coincidence? I am tempted to run M21s on unregulated voltage to see how it does in the mid 190s, sadly for now I can't risk it, I am willing to risk Bitmain gears because I will most likely never buy any form them again anyway, but I need the Microbt gears for testing.

My guess is OP's voltage drops below 198v when the miner is running, I highly doubt 198 is low enough to trigger the PSU protection, but I am willing to hear more from NotFuzzyWarm.

[philipma1957]

it can do over current.  he may have the p20. which is 3300 vs 3600

devide 3300/198 = 16.6667 amps. this is technically overcurrent as the plug and the socket rate for 16 amps continuous power draw.

I have 2 m20s and 1 m21s

I set them all to low power because of this issue .

our volts drop to 177-190   and I have the p21 psu so

3600/190 = 18.9 amps and I go into protect due to over current.

but 3600/228 = 15.7 amps = under 16 amps = good.

so he may have an over current due to low volts.

I do not know which firmware he has but. he can do the low setting.

@op look carefully at this

https://imgur.com/4aQ8hOc

the bottom miner is a m21s set to low   it does 44.7th at 2457 watts. note the firmware.

if you need help upgrading to the firmware let me know.

https://bitcointalk.org/index.php?topic=5257186.0

this thread shows the whatsminer tool app.

[mikeywith]

it can do over current.  he may have the p20. which is 3300 vs 3600

Thanks for the great explanation phill, are you sure the miner does over current protection and not voltage protection? I believe those are two different things.

If the miner doesn't want to go past 16 amps, this means if you could make it run at 25th the total wattage required will be about 60w*25th = 1500w, which means even at 150v you are drawing only 10 amps and the miner will work just fine, but I highly doubt it will run at 150v, where does the math go wrong in this?

[philipma1957]

well in my case i have the newest psu and the newest firmware.

the warnings i get all say current exceeded.

they all show 16.7 amps.

now i am 70 miles away for the farm and do all work remotely.

i go to farm 1-2 months gap.

I have never had a voltage warning. and i know at times the farm drops to 177-190 volts. when we get to 90 f or 32 c air temps the area does do brownouts.

what usually happens varies ,  either we pop a few circuit breakers or some psus go into protect mode.

so i clock a bit lower for the hot weather as getting power regulators for the entire farm is costly.

i run four regulators they track voltage and keep four circuits at 220 volts. i usually put my four best units on them. but i now have a lot of s17pros so i can do much about 17 s17 pros if i have 4 circuits protected i have 13 unprotected s17pros.

if i were the op i would downclock the m21s.