zappi 2 - Firmware Version 3.142

Released 02/09/2021 - Previous version 3.123

Before upgrading the zappi please ensure that your hub also has version 3.051 firmware or above installed

Instructions on how to update the firmware on your zappi and other myenergi devices can be found
-> here <-

This firmware release deals with a number of minor bugs and issues. There are no major feature changes.

Improvements

Cloud IP address displayed on information screen page 5
Firmware download option is now available in the “Other Settings” menu, allowing the firmware to be updated even if the zappi Advanced Menus are blocked with a PIN

Bug Fixes

Preconditioning settings were not set correctly after a firmware update from firmware <3.112
Corrected fault messages – “PECT Self Test Fail” may have been reported as “RCD Tripped Type A”
Improved stability of PWM control if Compatibility Mode set to 1.00. This is necessary if the minimum PWM needs to be fixed at a value >10%
Minor improvements to phase switching logic on three phase units
Welded Delay” could have been bypassed when entering STOP mode when 3ph charging, triggering “Contactor Fault!”

Please note – an upgrade of the hub firmware to v3.051 or above is recommended before upgrading your zappi.

Instructions on how to update the firmware on your zappi and other myenergi devices can be found at: https://myenergi.com/updating-your-firmware/

Comments

3 comments

Erik Geurts

11 September 2021 15:45
It might be helpful to the uninitiated to explain what "PWM" and "Compatibility Mode" mean, or to link to some articles that explain these concepts.
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Dr Chris Horne CEng FIET

11 September 2021 17:01
Good point Erik - we'll put something together.
For the time being:
- PWM "Pulse Width Modulation" is the way that zappi tells the EV how much current it can use to charge the battery. According to the standard the lowest value is 6A (10% PWM) and the highest value is 32A (53% PWM)
  Here's the obligatory link to Wikipedia https://en.wikipedia.org/wiki/Pulse-width_modulation
- "Compatibility Mode" are some settings in the zappi to help it cope with some EV's that behave a little differently - namely the Renault Zoe.
  The Zoe needs more current to start charging, so with Compatibility Mode turned on zappi won't start a charge in ECO+ unless there is more current available.
  As soon as the car starts to charge zappi can work out if it is a Renault Zoe and, if not, will let subsequent charges start at 6A.
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Erik Geurts

13 September 2021 09:21
Very informative, I learned something new today!
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