Description
1. Unboxing & Physical Snapshot
- Model & Brand: 6DD1683‑0CD0, Siemens SIMADYN‑D SP23 slide‑in rack power‑supply unit (obsolete OEM for SR12.2 subrack, 24 VDC primary input, fan‑less variant)
- Physical Dimensions (Approximate W × H × D): 340 mm × 250 mm × 130 mm, dedicated slide‑in PSU slot form‑factor for SIMADYN‑D SR12.2 subrack
- Estimated Shipping Weight: 8.82 lb (4.00 kg net unit weight; includes SP23 power‑supply assembly, rear DIN41612 backplane mating connector, static‑shield bag, foam‑reinforced export carton)
- What’s in the Box: Complete SP23 rack power‑supply unit, rear backplane connector, OEM printed installation datasheet; host SR12.2 subrack sold separately (verify part‑number label on existing hardware before spare procurement to avoid commissioning delays for steel rolling‑mill, winder and heavy‑duty multi‑drive systems)
2. Product Introduction (Structure B – Architecture hook)
This 6DD1683‑0CD0 SP23 power‑supply unit slides into dedicated PSU bay of SIMADYN‑D SR12.2 subrack, accepting external 24 VDC control power and generating regulated +5 V, ±15 V rack backplane power for PM‑CPU, T400 technology, communication and I/O Eurocard modules. Fully engaged rear backplane contacts guarantee stable multi‑rail power delivery; incomplete seating or internal component degradation produces voltage droop, spontaneous rack resets and random drive trips that mimic CPU or backplane hardware faults within critical heavy‑industry motion‑control strategies.
Reliability teams must validate full part‑number and hardware revision prior to spare rotation. Mechanically similar SP‑series power‑supply variants exist with AC‑input architecture, integrated fan and different output current ratings. A dimensionally‑fitting mismatched PSU inserts into rack bay yet cannot deliver full rated backplane current for existing module population (a well‑documented outage risk within metal‑processing, converting and continuous‑process drive facilities). No software parameter adjustment can compensate for insufficient power‑supply output capacity.
3. Core Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | SIMADYN‑D SP23 slide‑in rack power‑supply unit (fan‑less) |
| Primary Input | 24 VDC (external cabinet control supply) |
| Main Output | +5 VDC / 25 A (logic backplane supply) |
| Auxiliary Output | ±15 VDC (analog and reference circuit supply) |
| Cooling | Passive cooling; depends upon SR12.2 subrack external fan tray |
| Diagnostics | Power‑good status signal monitored via L‑bus / C‑bus backplane |
| Protection | Over‑voltage, over‑current, short‑circuit, thermal shutdown protection |
| Compatible Subrack | SIMADYN‑D SR12.2 (12‑slot, 24 VDC‑input subrack) |
| Operating Ambient Temperature | 0 °C to +60 °C (cabinet ambient air) |
| Storage Temperature Range | −40 °C to +85 °C, non‑condensing |
| Mounting | Dedicated slide‑in PSU slot inside SR12.2 subrack |
| Enclosure Rating | IP20 (cabinet‑only installation) |
| Conformal Coating | Standard non‑coated OEM construction |
4. Global Compliance & Industry Certifications
- CE Mark aligned with EMC and low‑voltage equipment directives
- UL/cUL Listed for industrial rack‑mount drive‑system power hardware
- CSA certification for North American cabinet deployments
- ATEX / IECEx Zone 2 qualification for eligible production lots
UL listing validates insulation, surge‑withstand and fault‑protection performance for noisy heavy‑drive cubicle environments. Verify specific‑lot certifications against OEM hardware documentation.
5. Long‑Term Storage & Asset Preservation Guide
Store this SP23 power‑supply assembly sealed inside its original ESD‑shield bag for warehouse shelf storage. Open static pouch exclusively at a properly‑grounded ESD workstation.
Maintain storage‑vault relative humidity below 60 %, non‑condensing. Sustained high‑humidity exposure degrades electrolytic‑capacitor characteristics and gold‑plated backplane connector pins. Extended shelf‑life storage requires bench power‑on burn‑in test prior to field deployment to uncover aged capacitor degradation.
This assembly contains no user‑serviceable lithium backup battery. Every 18‑months inspect rear mating connector pins for oxidation or mechanical damage; deformed contacts result in partial contact, voltage drop and intermittent rack resets. Internal electrolytic capacitors are wear components; plan refurbishment assessment for aged surplus units.
6. Physical Installation Prerequisites
Execute lock‑out‑tag‑out procedures and fully de‑energize SIMADYN‑D SR12.2 subrack, disconnect external 24 VDC primary input power. Slide SP23 PSU fully into dedicated power‑supply slot until rear backplane connector achieves firm positive latching engagement. Confirm primary input polarity before applying 24 VDC power; reverse polarity will damage the unit.
Maintain unobstructed intake and exhaust ventilation clearance for subrack cabinet. Blocked airflow triggers PSU thermal shutdown and system outage. This unit relies entirely on the subrack fan tray for cooling; confirm fan‑tray operational status after replacement.
Torque cabinet protective‑earth connections to OEM‑specified torque value. Tie cabinet protective‑earth to facility plant ground bus, never rely solely upon signal‑cable shielding. After hardware replacement, apply 24 VDC primary power, verify power‑good status, monitor +5 V / ±15 V output rail values. Upload D7‑SYS project and verify system cold‑boot complete without power‑related diagnostic alarms before returning system to live production duty. Hot‑swap insertion‑removal is not supported.
7. Buyer’s FAQ
Q: What Harmonized System tariff code applies to 6DD1683‑0CD0 for cross‑border shipments?
A: This legacy Siemens SIMADYN‑D rack power‑supply maps to HS 85044090 for industrial control power‑supply assemblies. Customs inspectors commonly require full part‑number plus hardware‑revision documentation. Confirm classification cooperating with your import broker before tendering freight.
Q: How does Country of Origin impact audit acceptance for this end‑of‑life power‑supply spare?
A: Plant audit checklists cross‑reference nameplate Country‑of‑Origin markings against site‑approved asset registers. Parallel‑sourced spares carrying mismatched COO markings trigger formal audit observations, even when bench load‑bank output testing appears satisfactory.
Q: Should supplementary shipping insurance be purchased for this obsolete SP23 power‑supply spare?
A: Yes. Transit shock can bend delicate rear backplane connector pins or induce unseen PCB micro‑cracks. Many internal defects cannot be detected by superficial visual inspection. Secure full‑value all‑risk coverage; standard carrier cargo terms exclude hidden electronic damage to power‑supply hardware.
Q: Does the delivered 6DD1683‑0CD0 ship pre‑loaded with site‑specific system power‑monitoring parameters?
A: Factory‑sealed OEM units are analog power hardware with no user‑programmable firmware. Power‑supply monitoring alarm thresholds reside within the SIMADYN‑D host‑CPU D7‑SYS project and are not stored inside this SP23 PSU. After replacement, validate rack power‑related diagnostic telemetry before placing spare hardware into live heavy‑drive production duty.
