Description
Product Introduction
The GE Fanuc IC697PWR711 is a high-output 100-watt power supply module engineered specifically for Series 90-70 VME control racks. Occupying the far-left power slot of any standard Series 90-70 main or expansion rack chassis, it converts universal AC line power (90 to 264 VAC) or high-voltage DC (90 to 300 VDC) into clean, regulated DC voltage rails that power the CPU, VME backplane logic, memory, and communication cards.
Built for heavy industrial environments, the IC697PWR711 provides robust overvoltage, overcurrent, and thermal shutdown protections. Delivering up to 20 Amps on its primary +5 VDC logic output, this supply can comfortably handle fully populated VME racks containing power-hungry 1 GHz CPUs (like the IC697CPM790), Genius Bus Controllers, and multi-channel analog cards without voltage drop or thermal throttling.
Key Technical Specifications
| Parameter | Value |
| Input Voltage Range | 90 to 264 VAC (47–63 Hz) or 90 to 300 VDC |
| Nominal Input Rating | 120/240 VAC or 125 VDC |
| Total Output Power | 100 Watts maximum continuous output capacity |
| +5 VDC Output (Logic Rail) | Up to 20.0 Amps (primary VMEbus logic power) |
| +12 VDC Output | Up to 2.0 Amps |
| -12 VDC Output | Up to 1.0 Amp |
| Ride-Through / Hold-Up Time | Minimum 20 ms at full load |
| Inrush Current | 15 Amps peak max (1 cycle @ 230 VAC) |
| Diagnostic Indicators | Front panel “LOGIC POWER” LED indicator |
| Backplane Slot Location | Dedicated Power Supply Slot (Leftmost position on 90-70 Rack) |
Application Scenarios & The “Trench” Experience
When a main power supply fails in a Series 90-70 rack, backplane logic power dies instantly. The central CPU drops offline, VME network communications crash, and all associated field outputs default to de-energized states, stopping critical plant loops.
- Power Generation & Utility Boilers – Delivering steady +5V logic power to main 90-70 turbine control racks operating under severe high-temperature control rooms.
- Steel Rolling Mills & Heavy Stamping – Powering densely populated VME racks loaded with high-speed processors, Genius controllers, and fast analog input boards.
- Chemical Batching Plants – Supplying clean DC power across multi-rack VME installations exposed to dirty AC grid supply transients.
Field Case Study: An aluminum smelting facility experienced an unexpected trip on a main anode control panel when a 15-year-old power module suffered capacitor breakdown under high ambient temperature. Replacing the unit with a bench-tested IC697PWR711 restored clean +5V and ±12V logic rails to the CPU and VME backplane immediately, allowing the plant to reload PLC parameters and resume potline operations in under 30 minutes.
IC697PWR711
IC697PWR711
Transparency SOP: Quality Assurance & Testing
Power supplies in legacy VME systems endure significant thermal stress and primary electrical line transients. Every IC697PWR711 module undergoes rigorous 100% full-load bench testing before shipment.
- Inbound Mechanical Check: Inspect housing latches, backplane power connector pins, terminal strip threads, and confirm original OEM serial tags and revision marks.
- Capacitor & Component Audit: Inspect primary high-voltage electrolytic filter capacitors for ESR degradation, swelling, or thermal venting signs.
- VME Rack Backplane Live Test: Install into the dedicated power slot of a live Series 90-70 VME test rack populated with a high-current CPU and dummy load cards.
- Full-Load Voltage Regulation: Apply 120 VAC / 240 VAC line voltage and verify +5 VDC (20A), +12 VDC (2A), and -12 VDC (1A) output rails using a calibrated DMM under 100% rated load capacity (100W).
- Anti-Static ESD Packaging: Seal the power supply in an ESD shielding bag with fresh desiccant and package in heavy-duty foam-padded boxes.
The Veteran’s Tech Trap Guide (Crucial Value-Add)
⚠️ Calculate Your +5V Backplane Amperage Draw! The IC697PWR711 provides 20 Amps on the +5 VDC rail. High-speed CPUs (such as the 1 GHz CPM790 or 96 MHz CPX935) alongside multiple Genius Bus Controllers (IC697BEM733) draw significant current. Always add up the +5V current requirements of every module in your rack to ensure you do not exceed the 20A limit!
❗ Never Insert or Remove Under Power! The Series 90-70 VME chassis does NOT support hot-swapping power supplies. ALWAYS isolate and disconnect main AC/DC input power at the breaker before pulling or installing the IC697PWR711 module, or you risk damaging the backplane connector pins and CPU.
⚠️ Check Terminal Wiring Connections: Ensure AC Line (L1), Neutral (L2/N), and Ground (GND) wires are securely torqued on the front terminal strip. Loose ground wiring can introduce high-frequency electrical noise onto the +5V logic rail, causing random CPU bus faults or memory parity errors!
Frequently Asked Questions (FAQ)
Q: What is the main difference between the and the IC697PWR724?
A: The is a standard 100-Watt supply operating on AC line power (90–264 VAC) or high-voltage DC (90–300 VDC). The IC697PWR724 is a 24 VDC input power supply designed for low-voltage DC cabinet environments.
Q: Can I run two modules in parallel for redundancy in the same rack?
A: No. Series 90-70 standard racks do not support load-sharing parallel power supply configurations in a single rack backplane.
Q: What should I check if the “LOGIC POWER” LED on the module front panel is dark?
A: Check for incoming AC/DC voltage across the input terminals using a multimeter. If line voltage is present but the LED remains OFF, check for an internal blown fuse or an external short circuit on the +5V logic rail.
Q: Is the compatible with Series 90-30 or PACSystems RX3i chassis?
A: No. The is physically sized for the larger Series 90-70 VME card cage and only fits the dedicated power supply slot of a 90-70 rack.
Q: What warranty is provided with this power supply?
A: All new surplus and bench-tested pre-owned modules supplied from our stock carry a full 12-month replacement warranty.
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