BTC Power

# BTC Power — field brand hub BTC **HP150**-class cabinets show up on public and fleet pads with CCS and NACS paths. Tickets cluster around isolation, door/interlock bounce, OCPP reconnect storms after cellular drop, and PFC under sustained load. Most wasted truck rolls happen when a tech swaps PFC modules before checking **cabinet↔dispenser CAN**, door switch state, or backhaul. ## When this OEM shows up / cabinet vs dispenser HP150-class units are often an integrated service envelope, but ownership still splits in practice: **Dispenser / connector path:** NACS adapter path fault, CCS handshake issues, local display messaging. **Cabinet power path:** isolation trip, input PFC fault. **Interlock / enclosure:** service door switch bounce — chatter that latches Faulted without a true power failure. **Link / network:** OCPP reconnect storm; also prove cabinet↔dispenser CAN before PFC RMA (same lesson as other split architectures). Apply the rule: **one gun vs whole cabinet**. Isolation after a cable swap is cable until proven otherwise. Photograph HMI string, connector ID, and door/switch state before you call it a power-module failure. ## How faults typically present ### Local display / LED bank - BTC-HP-* codes on local display or LED bank. - Door bounce: intermittent Faulted that clears when the door is reseated — do not call it isolation yet. - Isolation trip: often at CableCheck / plug-in; mid-session trip needs MeterValues curve. ### OCPP / CSMS - Reconnect storms: Available → Offline → Faulted churn; Heartbeat gaps. Triage: [/guides/ocpp-faulted-triage](/guides/ocpp-faulted-triage), [/entries/protocol-ocpp-f02-heartbeat-timeout-to-csms](/entries/protocol-ocpp-f02-heartbeat-timeout-to-csms), [/entries/protocol-net-c01-dns-resolution-failure-to-csms](/entries/protocol-net-c01-dns-resolution-failure-to-csms). - Isolation / PFC usually land as Faulted with GroundFailure / InternalError / vendor string — log `vendorErrorCode` verbatim. - NACS path: may fail Authorize/handshake while CCS on the sibling connector works — use [/guides/nacs-field-notes](/guides/nacs-field-notes). ### Cloud / PLC event list - BTC CSMS + cabinet PLC event list before wrenching. Correlate timestamps with modem drops vs door opens vs plug events. ### Physical cues - Door seals, water ingress, hot cable at high SOC ramp, debris in inlets, antenna connectors loose after service. ## Ranked common failure patterns 1. **HP150 isolation trip** — Cable/gun IR or wet path before PFC condemnation. Entry: [/entries/btc-power-btc-hp-iso-hp150-isolation-trip](/entries/btc-power-btc-hp-iso-hp150-isolation-trip). Stage: [/entries/protocol-ccs-h03-cable-check-isolation-fail](/entries/protocol-ccs-h03-cable-check-isolation-fail), [/guides/ccs-handshake-basics](/guides/ccs-handshake-basics). 2. **Service door switch bounce** — Misaligned latch, worn switch, vibration. Reseat, adjust, replace switch before board hunts. Continuity on the loop with the door closed and latched. Entry: [/entries/btc-power-btc-hp-door-service-door-switch-bounce](/entries/btc-power-btc-hp-door-service-door-switch-bounce). 3. **OCPP reconnect storm** — Cellular drop, NAT keepalive, wrong URL/identity after SIM/board swap. Entry: [/entries/btc-power-btc-hp-ocpp-ocpp-reconnect-storm](/entries/btc-power-btc-hp-ocpp-ocpp-reconnect-storm). Modem path: [/entries/sierra-wireless-mdm-rssi-rssi-too-low-in-cabinet](/entries/sierra-wireless-mdm-rssi-rssi-too-low-in-cabinet). 4. **NACS adapter path fault** — Adapter/latch/SECC/vehicle profile; prove with known-good path and CCS sibling if present. Entry: [/entries/btc-power-btc-hp-nacs-nacs-adapter-path-fault](/entries/btc-power-btc-hp-nacs-nacs-adapter-path-fault). Related: [/entries/protocol-nacs-h01-nacs-handshake-timeout-on-adapter-path](/entries/protocol-nacs-h01-nacs-handshake-timeout-on-adapter-path), [/entries/protocol-nacs-h03-nacs-thermal-derate-to-zero](/entries/protocol-nacs-h03-nacs-thermal-derate-to-zero). 5. **Input PFC fault** — After grid/phase proven under load. Entry: [/entries/btc-power-btc-hp-pfc-input-pfc-fault](/entries/btc-power-btc-hp-pfc-input-pfc-fault). PQ: [/guides/site-power-quality-basics](/guides/site-power-quality-basics). 6. **Handshake before current** — Latch/SLAC/SDP failures with healthy DC bus: [/entries/protocol-ccs-h01-ccs-slac-timeout](/entries/protocol-ccs-h01-ccs-slac-timeout), [/entries/protocol-ccs-h02-sdp-failed-secc-not-responding](/entries/protocol-ccs-h02-sdp-failed-secc-not-responding), [/entries/protocol-ccs-h04-precharge-voltage-mismatch](/entries/protocol-ccs-h04-precharge-voltage-mismatch). 7. **Ground / PE outdoor** — Rain and wash-down at glands/boots ([/entries/protocol-gnd-01-ground-continuity-fail-at-dispenser](/entries/protocol-gnd-01-ground-continuity-fail-at-dispenser)). 8. **Stuck Faulted after reboot** — Software latch, not endless power cycles ([/entries/protocol-ocpp-f01-statusnotification-stuck-faulted-after-reboot](/entries/protocol-ocpp-f01-statusnotification-stuck-faulted-after-reboot)). ## Log sources / tools | Source | What you pull | |--------|----------------| | Local display / LEDs | Live code, door/E-stop state | | Cabinet PLC event list | Door, CAN, PFC, isolation timestamps | | CSMS / OCPP | Reconnect timeline, StatusNotification, MeterValues | | Modem stats | RSRP, APN, disconnect counters | | Known-good cable / NACS path | Moves isolation or NACS fault | | DMM / megger | PE, IR, input phases; interlock loop continuity | ## Field checklist 1. One gun or whole cabinet? 2. Door/interlock state photographed? 3. Weather / recent cable or modem work? 4. OCPP StatusNotification snippet for the stall window 5. Dry + known-good cable if ISO 6. Feeder voltage under load if multi-stall pad 7. CAN / link health before PFC module RMA ## When to escalate **Electrician / site power** — Phase loss / undervoltage matching PFC trips; PE issues on isolation tickets that fail megger at pedestal; breaker/feeder work. **Network / CSMS** — Reconnect storms with modem/CSMS evidence; identity/URL after SIM work; auth-only failures with healthy energy path ([/entries/protocol-ocpp-f03-authorize-rejected-invalid-idtag](/entries/protocol-ocpp-f03-authorize-rejected-invalid-idtag)). **BTC OEM** — PFC module after grid + CAN proven; isolation path confirmed cable-independent (stays with cabinet); door switch hardware after bounce documented and adjustment failed; NACS path after known-good adapter/vehicle proven. Do not escalate door bounce or reconnect storms as PFC RMA. Do not swap modules for NACS adapter faults until the adapter/SECC path is proven. Payment-only: [/entries/ingenico-pay-to-payment-terminal-timeout](/entries/ingenico-pay-to-payment-terminal-timeout). Public HP150 pads and depot installs share the same triage order: presentation → one-gun vs cabinet → cable/ISO → interlock → power → network. Write that order into the ticket so the next tech does not restart at module RMA. Keep PE continuity and door-switch photos in every outdoor BTC ticket; wash-down and latch bounce are still the majority of “mystery Faulted” callbacks. Keep PE continuity and door-switch photos in every outdoor BTC ticket; wash-down and latch bounce are still the majority of “mystery Faulted” callbacks. Keep PE continuity and door-switch photos in every outdoor BTC ticket; wash-down and latch bounce are still the majority of “mystery Faulted” callbacks.