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Ecotality PE-30

From Repair Wiki
Revision as of 22:08, 29 July 2024 by ChrisC (talk | contribs) (added basic PM section)
Ecotality PE-30 stations, showing standard tall config and shorter ADA config

(up to EV chargers section)

This page documents the Ecotality PE-30 EV charging station. This was a robust pedestal for public use, encapsulating the WE-30 hardware that Ecotality made for home use.

In the early 2010s, the US DoE funded a program ("The EV Project") to help solve the chicken-or-egg problem of public charging infrastructure vs EVs to use them. Ecotality Inc won the project and proceeded to seed the country, in several markets, with Level 2 charging stations branded as "Blink". For home charging these were WE-30 models; for public charging these were the heavier duty PE-30 model, which was just a WE-30 packaged in a heavy steel pedestal.

Ecotality and Blink then went through multiple rounds of bankruptcy and rebirth, and in the process the old PE-30 hardware was abandoned. Any site that wanted to continue operating their Blink hardware on the Blink network needed to upgrade to newer generation hardware. With Blink's high network / maintenance fees, many sites choose to abandon the stations. Without a Blink subscription, the old hardware ceased to work.

However, this old hardware actually reverts to being just a dumb EVSE if you disable the networking and UI hardware components. It is easy to "lobotomize" the hardware, disconnecting the network and UI layer, and turn them back into dumb stations that simply deliver power right away after you plug in.

Ecotality PE-30 model line
Model number Part number display height
PE-30Kice60 01-0131-0000 60 inches
PE-30Kice48 01-0135-0000 48 inches (ADA)
PE-30Kice40 01-0136-0000 40 inches (ADA)

Disassembly to access EVSE internals

  1. Remove two security bolts (Torx security, 4 mm) at top of pedestal.
  2. While lifting LED light assembly up, disconnect the wiring harness, and set the assembly aside.
  3. Remove the two bolts at the top (hex, 10 mm).
  4. At the charging cable management reel on the front of the unit, remove the white cosmetic cover; it pops out with help of a flathead screwdriver.
  5. Remove the two (maybe 3-4) bolts (hex, 10 mm) that hold the reel onto the pedestal. You will need a nut driver for this, since the bolts are recessed in deep holes.
  6. Tilt the large metal cover forward away from the pedestal assembly and lift it away. While you do this, you will need to feed the charging cable back through the grommet. You won't be able to disconnect the cover completely due to the attached cable, but you'll be able to set it aside.
  7. Remove five bolts (hex, 10 mm) that hold the EVSE cover on; these should just be finger tight since they are fastening down plastic.
  8. As you remove the EVSE cover, slowly peel the adhesive gasket off the touch screen.

It's not necessary to access the EVSE internals, but if you want to also remove the pedestal's back cover, use a regular (non-security) Torx T25 wrench. To lift it off the ground mount, you'll need a 1/2-inch box wrench.

Basic preventive maintenance

These action items are based on known problems with how this hardware was originally assembled, and should be performed if you are already opening up the unit.

  • There is a current transformer on the power lines routed at the bottom of the internals. If allowed to drift left, this can pick up noise from (or generate noise to?) an adjacent component, disrupting operation. Therefore, gently push this CT to the right, so that it's next to the choke that's adjacent on the line.
  • Check the power terminal for stray wire strands. Some of the strands may not be captured inside the terminal blocks, and may lead to shorts. If found, remove and reinstall the wires.

See below for more significant rework procedures.

Disable network and touchscreen

These are the steps to disable the network / UI hardware, aka lobotomize it, so that the station Just Works as a dumb EVSE, simply providing power when you plug in.

PE-30 touchscreen assembly
  1. Open up the pedestal per the steps above.
  2. Look behind the touchscreen. Immediately behind it will be a PCB that drives the touchscreen (and the RFID sensor mounted below it). Behind that, about 300 mm further "back" and mounted on plastic standoffs, is another PCB which is a small Linux computer to drive the network connectivity.
  3. PE-30 touchscreen power disconnected
    On the bottom of the touchscreen PCB is a three-pin interface with two thick blue wires going to it. This is providing power to the networking/UI assembly. Disconnect this. The photo here shows what it looks like after it's been disconnected.
  4. PE-30 touchscreen data disconnected
    On the right side of the computer PCB is a 10-pin interface with many thin blue wires going to it. This is providing data between the computer and the touchscreen. Disconnect this. The photo here shows what it looks like after it's been disconnected.






repair J1772 plug / cordset

history of initial cordset having bad crimps and being downrated to 24 Amps

latch hook somehow shifts and prevents latching and needs to be filed down to work again

more product photos

Ecotality PE-30 with front cover removed
Ecotality PE-30 with internals exposed