WhatsApp: +86 16626708626
Email: 
Phone: +86 16626708626Description
Key Technical Specifications
| Parameter | Specification |
| Part Number | 505-6660 |
| Output Channels | 16 discrete AC outputs |
| Operating Voltage Range | 85 to 132 V AC (47–63 Hz) |
| Current Rating | 2 A per channel max (subject to module total backplane thermal limits) |
| Isolation | 1500 V RMS field-to-backplane optical isolation |
| Protection | Onboard blown-fuse indicators and individual channel fuses |
| Backplane Power Draw | Powered directly via TI 505 backplane chassis slot |
| Operating Temperature | 0°C to +60°C |
Product Introduction & Supply Chain Strategy
The Texas Instruments 505-6660 is a 16-channel 120V AC digital output module designed for the TI505 / Siemens 505 PLC architecture. It drives AC solenoids, motor starters, indicator lamps, and control relays in continuous process control applications.
Sourcing this module as New Surplus allows plant engineers to maintain legacy TI 505 rack installations without undertaking expensive, high-risk PLC migration projects. Selecting genuine New Surplus over refurbished cards avoids age-degraded output triacs, loose terminal block clips, and thermal-stressed backplane logic components, ensuring reliable output switching while optimizing Total Cost of Ownership (TCO).
Installation & Configuration Guide
Stage 1: Pre-Installation (Prep & Safety)
- De-energize primary power to the TI 505 rack and field I/O wiring circuits following plant LOTO procedures.
- Put on a grounded ESD wrist strap attached to the metal enclosure frame.
- Take note of the field wiring arrangement on the front terminal connector block.
Stage 2: Removal
- Unbolt top and bottom retaining screws securing the 505-6660 module inside the rack chassis slot.
- Swing open or unclip the front terminal wiring arm to disconnect field wiring without disturbing individual wire leads.
- Firmly pull the card straight out along the chassis guide rails to avoid bending rear backplane bus pins.
Stage 3: Installation (Clone & Seat)
- Inspect the new 505-6660 module to ensure all onboard fuse holders contain properly rated replacement fuses.
- Slide the module into the designated slot guides until the backplane edge connector seats firmly into the rack receptacle.
- Re-attach the wiring terminal arm and tighten top and bottom chassis retaining screws.
Stage 4: Power-On & Testing
- Apply power to the TI 505 base and verify the module status LED illuminates green without indicating blown fuse faults.
- Execute an I/O force test from the programming workstation to confirm each output point actuates its corresponding field device.
505-6660
505-6660
Firmware/Software Versions & Upgrade Notes
- I/O Addressing: Confirm the dip switches on the base unit or memory map settings in TISOFT / APT software match the slot configuration for proper bit mapping.
- Fusing Precautions: Always replace blown channel fuses with fast-acting fuses matching OEM amperage specifications. Installing over-sized fuses will destroy the channel’s solid-state switching element during field shorts.
- Handling Warning: Do not pull or push the module using the terminal block; use the top and bottom extraction handles to prevent fracturing the front connector mounting bracket.
Frequently Asked Questions (FAQ)
Q: Is this Texas Instruments 505-6660 module brand new?
A: Yes. This module is 100% New Surplus / Original New stock. It has never been installed in an active PLC chassis, pulled from a decommissioned plant, or repaired.
Q: Why choose New Surplus over a refurbished TI 505 module?
A: Legacy AC output cards utilize solid-state components and optocouplers that degrade over decades of heat exposure. Refurbished boards often have weak output triacs prone to shorting “ON” unexpectedly. New Surplus provides factory-fresh component integrity and total operational reliability.
Q: How is this legacy I/O board verified before shipment?
A: Every 505-6660 card undergoes visual pin inspection, fuse continuity verification, and live power-on rack testing in an ESD-safe environment prior to shipment.
Q: Can I hot-swap the 505-6660 module while the TI 505 rack is energized?
A: No. Standard TI 505 racks do not support hot-swapping. Removing or inserting an I/O card under power can cause backplane voltage transients, corrupt CPU memory, or trip adjacent rack modules.
Q: What warranty coverage applies to this item?
A: We supply a comprehensive 1-year replacement warranty on all New Surplus inventory. If any functional defect occurs under standard operating conditions, we issue an immediate replacement or process a full credit.
