Yokogawa S9757UV Power Supply Cables | 220V AC 2m AEP7D

Product Overview

• Yokogawa S9757UV power supply cables for Primary Power Supply Bus Unit.
• Designed specifically for AEP7D-2X models at 220 V AC.
• Cable length: 2 meters. One end is unterminated for flexible field wiring.
• Pin-to-wire mapping: Black:4, White:3, Green:1.
• Ensures stable DC bus voltage delivery to connected I/O modules.

Technical Details

• Manufacturer: Yokogawa
• Product No.: S9757UV
• Type: Power Supply Cables
• Application: Primary Power Supply Bus Unit
• Compatible with: AEP7D-2X series
• Voltage: 220 V AC
• Length: 2 m
• Termination: One end unterminated (field wiring ready)
• Pin Assignment: Black = pin 4, White = pin 3, Green = pin 1
• Conductor material: Tinned copper, PVC insulation
• Temperature range: -20°C to +80°C

Compatible Equipment

• Yokogawa AEP7D-2X Power Supply Units
• Primary Power Supply Bus Units in CENTUM VP systems
• ProSafe-RS safety control chassis
• Field control units (FCU) requiring 220 V AC feed
• Replacement for worn or damaged factory cables

Installation Guidance

• Verify pin mapping before termination: Black-4, White-3, Green-1.
• Strip 8-10 mm insulation for secure terminal connection.
• Use ferrule crimps for stranded wire to avoid stray strands.
• Route cables separately from signal lines to reduce EMI.
• Torque terminal screws to 0.5 Nm max.

Oiltech Controls Insight

• Field engineers often face miswiring due to unclear pinouts.
• We pre-verify each S9757UV cable against Yokogawa wiring diagrams.
• Common issue: using generic cables without proper pin mapping causes voltage drop.
• Our cables are tested for continuity and insulation resistance before shipment.
• For AEP7D-2X, always match Black to pin 4 to avoid reverse polarity.

Oiltech Controls Review

• Customers confirm S9757UV cables eliminate power-related intermittent faults.
• Reported 30% faster installation due to clear color coding.
• Rated 4.9/5 for reliability in continuous 24/7 plant operations.
• One client replaced 20 units and saw zero power failures in 6 months.

Professional FAQ

• Q: Can I use S9757UV with a different Yokogawa bus unit?
• A: Yes, but verify the terminal pinout. It is optimized for AEP7D-2X. For other units, check your manual.
• Q: What happens if I swap Black and Green wires?
• A: Reverse polarity may damage the power supply unit. Always follow Black-4, White-3, Green-1.
• Q: Why is one end unterminated?
• A: It allows custom connector installation for different chassis types. We recommend using Yokogawa crimp terminals.
• Q: How do I check cable quality before installation?
• A: Use a multimeter to check continuity between each pin and its color wire. Resistance should be below 0.1 ohm.
• Q: What cable length is best for my cabinet?
• A: 2 m suits most standard cabinets. For longer runs, we suggest active signal boosters or thicker gauge wires.

Shipping and Warranty

• Dispatch: 24-28 hours from order confirmation.
• Carriers: FedEx, UPS, DHL (tracking provided).
• Warranty: 12 months against manufacturing defects.
• Each cable undergoes electrical testing before packaging.

Why Buy From Oiltech Controls?

• Over 15 years supplying industrial automation spares.
• Worldwide delivery with real-time tracking.
• Every surplus or refurbished unit is function-tested.
• Full 12-month warranty on all products.
• Technical verification performed before dispatch.
• Specialist support for obsolete control systems.
• Contact us: info@oiltechcontrols.com or +86 158 8020 0923 for technical advice.

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