Category Archives: Process

Safety is by Choice, Not by Chance.

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Phoenix Contact's Safety RelaysAre you selecting a safety relay just to meet the SIL3 requirements?

Who will be responsible for conducting the Proof Test to ensure it is still safety relays are still safe to use?

Which is critical? Safety relays without diagnostics or the Safety relays with diagnostics?

Safety is a Choice, Not by Chance

The graphics below explains the functional principle of the force guided /positive driven contacts in the event of a welded contacts and that’s where the normally closed contacts come into action to provide feedback to inform the system of the failure in relay contacts.

In this case when the relay is de-energized, the normally closed contact cannot close properly having a gap of 0.5mm.

Animation of how Force-guided relays work

Click the image to see the animation of how Force-guided relays work

Safety relays for ESD-Emergency Shut-Down Systems should have:

1) Force guided relay enables a feedback path just in case of welded contacts eliminate the need for and simplifies Proof Testing. (ESD-Emergency Shut Down and F&G-Fire & Gas systems)

Emergency Shut Down System Circuit

Emergency Shut Down System Circuit

Safety relays for F&G-Fire & Gas Systems should have:

The diagram below shows connection details for a safety relay used by Fire & Gas Systems. The Fire & Gas System is always on standby mode and it becomes more important to have multiple diagnostics to make sure the Fire and Gas System Safety Relay is still functional and all wirings are connected.

Fire & Gas System

Fire & Gas System

  1. Diagnostics for lost power input to field devices: Beacons, Solenoid Valves, Fire Alarm Bell.
  2. Field devices disconnection diagnostics.
  3. Short circuit field device diagnostics.
  4. Diagnostics for any welded contacts.
  5. Proof Test points (TP1, TP2, TP3) without the use of external power.
  6. All diagnostics via the same cable (A1,A2) by the use of test pulse filtering.
  7. Option for redundant connection (A1’, A2’).

If you have sales enquires to know more about this product, please feel free to send me an enquiry and a sales visit can be arranged to discuss in more detail.

What product(s) would you like more information on? (required)

 

Cost Savings Through Optimising Space Usage

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Trying to save cost by using less cabinets or smaller junction boxes in order to better optimize your plant in terms of space as well as maximized the energy and cabling installation cost for signal conditioning?

Phoenix Contact MACX Phoenix Contact Mini Analog Pro

Phoenix Contact’s MACX / MINI Analog is your solution.

Phoenix Contact has an Innovative way to maximized space, wiring installation and energy cost for better return of your plant investments.

 

First and foremost, Phoenix Contact has…

Slimmest worldwide with width of 12.5 mm
User Benefit: Space saving in the cabinet up to 30% space

MACX Space saving

Lower power consumption using Low loss Technology (Patented)

User Benefit: Longer operational lifetime of the devices and less ventilation of the cabinet required resulting in savings in energy cost.

Mini Analog Pro Heat Signature

Mini Analog Pro Heat Signature

Power bridging from “bottom”

User Benefit: Reduced wiring for power distribution, fast installation, hot-swap replacement, expansion-options by bridging and saves time and money!

Conventional Daisy Chain Power Distribution

Conventional Daisy Chain

Conventional Daisy Chain

Power Bridging using T-BUS connector and Supply Module

T-BUS on DIN RAIL        MACX T-BUS

MACX Supply and Error Message

From highly compact 12.5 mm signal conditioners and functionally safe signal conditioners to signal isolators for intrinsically safe circuits in hazardous areas, Phoenix Contact signal conditioner range offers a solution for all applications in Analog signal conditioning.

User Advantages:

  • Space savings in the cabinet up to 30% space.
  • Longer operational lifetime of the devices and less ventilation of the cabinet required resulting in savings in energy cost.
  • Reduced wiring for power distribution, fast installation, hot-swap replacement, expansion-options by bridging and saves time and money!

 If you would like to know more about this product, please feel free to send me an enquiry and a road show can be arranged to discuss in more detail with your team.

What product(s) would you like more information on? (required)