Bently 3500-15 127610-01 Low‑Voltage AC Power Supply Module（Legacy LV‑AC integrated big‑card）

Description

Hardware & Electrical Specifications

‑ Manufacturer: Bently Nevada (Baker Hughes) ‑ Compatible System: Bently Nevada 3500 machinery‑protection TSI rack ‑ Functional Type: Legacy Low‑Voltage AC Power Supply Big‑Card ‑ AC Input: 85‑132 VAC, 47‑63 Hz ‑ Max Output Power:100 W, support full‑load 14‑slot full‑size rack ‑ DC Backplane Output: ±5 VDC, ±15 VDC, 24 VDC ‑ Protection Circuit: Over‑voltage, over‑current, over‑temperature, short‑circuit fold‑back protection ‑ Front‑panel Indicator: SUPPLY OK green LED for power‑supply health diagnosis ‑ Connectors: AC input screw terminals on front panel; edge‑connector connects to rack backplane ‑ Mounting: Half‑height dedicated slot on left side of 3500‑05 rack ‑ PCB Coating: Conformal coated for G3 harsh industrial cabinet environment ‑ Hot‑swap rule: Hot‑swap permitted only when second redundant power supply works normally. Must cut off upstream AC input under single‑power configuration before replacement

Environmental Specifications

‑ Operating Temperature: ‑40 °C ~ +70 °C, power derating above 60 °C ‑ Storage Temperature: ‑40 °C ~ +85 °C ‑ Relative Humidity:5%‑95 % non‑condensing ‑ Vibration & Shock: Complies with API‑670 power‑plant cabinet EMC standards

Mechanical Data

‑ Dimension(W×H×D):50.8 mm ×120.7 mm ×251.5 mm ‑ Weight: approx 1.14 kg

Core Functions

1. LV‑AC to multi‑rail DC conversion: Single‑board completes AC input filtering, surge suppression and AC‑DC conversion, provides stable DC power for 3500 rack backplane bus.
2. Redundancy support: Two 127610‑01 can be configured as 1+1 redundant power; lower‑slot module is primary, upper‑slot module is backup, seamless switch‑over occurs upon primary failure without rack shutdown.
3. Multi‑layer fault protection: Built‑in OVP, OCP, OTP protection mechanism, isolate internal faults to avoid damaging other monitoring modules.
4. Visual health diagnosis: Front‑panel SUPPLY‑OK LED indicates working status for field maintenance personnel.
5. Full‑rack power driving: Supplies power for vibration, displacement, speed, relay and communication modules inserted in 3500 rack.

Installation, Replacement & Critical Warnings

1. Under single‑power rack condition, fully de‑energize upstream AC power before replacing 127610‑01. Hot‑swap operation is only allowed when redundant backup power is online.
2. Critical risk: This is low‑voltage AC power module, input only 85‑132 VAC. Direct connection to 220V mains will burn out the power card immediately. Cannot replace with 114M5330‑01 or split‑type 106M1079‑01+106M1081‑01 without modifying site power wiring. Confirm part number and input voltage before purchasing.
3. After installation, check SUPPLY‑OK LED status; LED off indicates power‑subsystem fault. Check AC input loop and module sequentially.
4. After replacement, verify all rack modules boot normally, download system configuration project via 3500 Rack Configuration software.

5. Common failure mode: Input circuit surge damage, internal power‑conversion component aging. Check site AC power quality when whole‑rack power‑loss occurs.