Product Name:Relay Output Module
Brand Name: SIEMENS
Model Number:505-4916A
Country of Origin:GERMANY
Warranty: 12 Months
Whatsapp：+86 18159889985
Email：[email protected]
Brand Name: |
SIEMENS |
Model Number: |
505-4916A |
Country of Origin: |
GERMANY |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
Delivery time in stock |
Payment Terms: |
T/T |
|
Sales Manager: |
Stella |
|
Send an email: |
|
|
Contact in Whatsapp: |
|
Parameter |
Specification |
|
Model Number |
505-4916A |
|
Product Type |
Relay Output Module / Digital Output Module |
|
Number of Outputs |
|
|
Output Type |
|
|
Voltage Range |
|
|
Current Rating |
|
|
Thermal Current (Common) |
Not specified |
|
Switching Cycles (Relay) |
|
|
Switching Speed |
~15 Hz MAX (estimated from typical relay specs) |
|
Isolation |
|
|
Status Indicators |
|
|
Power Supply |
Not required (Powered from backplane) |
|
Backplane Current (5 VDC) |
|
|
External Supply |
Not required |
|
Mounting |
Single-wide I/O module for Siemens 505 series base rack |
|
Dimensions (W x H x D) |
|
|
Net Weight |
|
|
Operating Temperature |
|
|
Storage Temperature |
|
|
Agency Approvals |
UL Listed, CSA Certified (Process Control Equipment) |
|
Country of Origin |
|
|
Lifecycle Status |
Discontinued / Legacy product (replaced by CTI 2531) |
The Siemens 505-4916A is a 16‑point relay output module for the SIMATIC 505 / TI 505 PLC platform. The 505‑4916A is fully Form‑A/N.O. compatible (16 points), with four isolated commons and high‑output capability using replaceable relays. It switches AC or DC loads directly without external interposing relays. For field upgrades and repairs, the 505‑4916A is a drop‑in I/O module, working seamlessly with CTI 2500 series CPUs and existing 505 systems. The 505‑4916A is built for robust mixed‑voltage environments in mission‑critical heavy industry.
Pilot-Duty Solenoids & Contactors: Operates 120 VAC control relays, motor starters, and solenoid valve banks found in water treatment plants and material handling systems.
Indicator & Alarm Annunciation: Drives panel lamps, stack lights, and audible alarm devices from the same module using mixed 24 VDC and 110 VAC circuits safely.
Legacy Line Migration: Directly replaces end‑of‑life 505‑4916 modules in situ without altering existing wire harnesses, field terminations, or PLC programs.
Building Automation: Controls HVAC dampers, chiller pumps, and lighting contactors where mixed AC/DC output capability is required on a single card.
Process Control: Drives analog signal routing relays and interposing relays utilized in batch reactors or mixing vessels.
Plug‑and‑Play Compatibility: Directly works with TI 505, SIMATIC 545, 555, 575, and CTI 2500 series CPUs without adapter plates or conversion cables.
Mixed AC/DC Outputs: Each common can switch either AC or DC on the same card, independently, at voltages up to 265 VAC or 30 VDC.
Hard‑Contacts & Isolation: Uses highly reliable mechanical relay contacts. Galvanic isolation between field wiring and backplane exceeds 1500 Vrms.
*Fall‑Safe Behavior**: Outputs open when the PLC does not actively command them on – eliminating leakage currents common in solid‑state outputs.
Replaceable Relays (Socketed): Serviceable in the field using standard relay replacement kit** – minimal downtime.
Visual Channel Diagnostics: Dedicated LED per point confirms that the PLC output image is active, simplifying troubleshooting.
Expands a control system’s output capability by providing 16 discrete Form‑A relay outputs in a single 505‑series I/O slot.
Directly switches heavy AC or DC loads, such as motor starters, solenoids, and pilot lights, without external interposing relays or contactors.
Electrically isolates field‑side devices from sensitive PLC logic via physical relay contacts, protecting the controller from voltage transients.
Indicates output status in real‑time via 16 front‑panel LEDs – each LED illuminates when the corresponding output bit in the PLC’s image table is logic “1”.
Supports legacy system upgrades as a direct slot‑compatible replacement for original 505‑4916 modules, preserving existing wiring and RLL programming.
Q1: What PLCs are compatible with the 505-4916A relay output module?
A1: The 505‑4916A is fully compatible with Siemens SIMATIC 545, 555, and 575 CPUs, as well as the CTI 2500 series processors, when installed in a standard 505 chassis.
Q2: How is the 505-4916A powered in a system?
A2: No external power supply is needed. The 505‑4916A draws its logic power directly from the 505 backplane. Field‑side load power is supplied separately via the isolated commons.
Q3: What is the maximum switching capacity of the relays?
A3: Each relay can switch up to 5 A at 250 VAC or 30 VDC resistive load, or 2 A inductive AC / 0.88 A inductive DC, with a full contact life of 100,000 cycles at full load.
Q4: Can I replace a 505-4916A with a modern CTI module?
A4: Yes. The CTI 2531 16‑point relay output module is a true hardware drop‑in replacement, requiring no wiring changes – ideal for planned refresh of legacy systems.
Q5: How can I diagnose an output channel that is not working?
A5: First, check the LED on the front panel – it should be ON when the output is energized. If the LED is ON but the field device does not operate, the relay has likely failed. The 505‑4916A has replaceable socketed relays for that point alone.
Inguiry Now: [email protected]
EN
