Satellite link to power unit lost

How it presents

Display

Satellite link to power unit lost

OCPP

Faulted (StatusNotification) — capture errorCode/info

Symptom

Satellite link to power unit lost on kempower (satellite): Kempower Satellite / C-series UI shows KEM-SAT-LINK. Techs see session abort or stall Unavailable until the ranked cause is cleared. Correlate Kempower ChargEye / OCPP before opening the cabinet.

Root causes (by observed frequency)

1. #1 Most common field cause for Satellite link to power unit lost (KEM-SAT-LINK) on kempower

   Satellite dynamic power pool — confirm module pool assignment before condemning a stall

2. #2 Installation / commissioning mismatch exposed under load
3. #3 Firmware or config drift after update or board swap

Diagnostic procedure

1. 1. Capture Kempower Satellite / C-series UI message for KEM-SAT-LINK, connector ID, and last successful session time

   Expected: Exact display string + OCPP status/errorInfo if present

   Tools: phone photos (scrubbed), CSMS

2. 2. Pull Kempower ChargEye / OCPP; confirm whether Satellite link to power unit lost follows one gun, one cabinet, or the whole site

   Expected: Fault correlates to one path

   Tools: CSMS export, OEM cloud

3. 3. On model satellite hardware, isolate power quality / protective devices before opening HV for KEM-SAT-LINK

   Expected: Voltage in band; no unexpected trips

   Tools: DMM, IR gun, LOTO kit

4. 4. Execute rank-1 cause check for “Satellite link to power unit lost”; swap known-good cable/gun or stall if available

   Expected: Fault moves with cable or stays with cabinet

   Tools: known-good cable, IR, OEM service menu

5. 5. If unresolved, escalate with KEM-SAT-LINK evidence pack (HMI photo, OCPP snippet, readings) — Satellite dynamic power pool — confirm module pool assignment before condemning a stall

   Tools: ticket template

The fix

Clear KEM-SAT-LINK (Satellite link to power unit lost) by correcting the ranked cause on kempower / satellite, then run a full validation session.

• Suspect module or controller indicated by rank-1 cause

  OEM kempower service channel; keep serial for RMA

  KEM-SAT-LINK

1. LOTO and verify zero energy per kempower HV procedure before any bus work
2. Correct rank-1 cause for KEM-SAT-LINK; do not shotgun-replace modules
3. Clear fault latches in HMI/CSMS; confirm StatusNotification returns to Available/Preparing as appropriate
4. Run validation: authorize → handshake → ≥5 minutes energy → clean stop; capture MeterValues
5. Document firmware, part lots, and scrubbed HMI photos for confirmations