Finder 706184000000PAS Modular Three-Phase Sequence/Phase Loss Control Relay User Manual

Introduction

This manual provides essential instructions for the installation, operation, and maintenance of the Finder 706184000000PAS Modular Three-Phase Sequence/Phase Loss Control Relay. This device is designed to monitor three-phase networks for correct phase sequence and detect phase loss conditions, ensuring the protection of connected equipment.

Product Overview

Figure 1: Front view of the Finder 706184000000PAS Modular Three-Phase Sequence/Phase Loss Control Relay. The image displays the device with its terminals (A1, A2, A3, 11, 14, 12), the Finder logo, voltage specifications (Un 208...480V AC, 3~ (50...60Hz)), an indicator light, and a wiring diagram on the side panel. Note: The number '72.31.8.400.0000' visible on the unit is an internal part number, while the product model is 706184000000PAS.

The Finder 706184000000PAS is a compact, modular relay designed for DIN rail mounting. It features screw terminals for secure electrical connections and an integrated indicator for operational status. Its primary function is to safeguard three-phase systems against incorrect phase rotation and the absence of a phase, which can lead to damage or malfunction of motors and other sensitive equipment.

Setup and Installation

1. Safety Precautions

• Ensure all power is disconnected before installation or maintenance.
• Installation should only be performed by qualified personnel.
• Adhere to all local and national electrical codes.

2. Mounting

The relay is designed for DIN Rail Mount. Snap the device onto a standard 35mm DIN rail in an appropriate electrical enclosure.

3. Wiring Connections

The relay utilizes Screw Type connectors for secure wiring. Refer to the wiring diagram on the side of the unit and below for correct connections.

• Input Voltage: Connect the three phases of the supply network to terminals A1, A2, and A3. The operating voltage range is 208V to 480V AC at 50/60Hz.
• Output Contacts: The relay features a 1RT (1 Changeover) output contact.
  • Terminal 11: Common contact
  • Terminal 14: Normally Open (NO) contact
  • Terminal 12: Normally Closed (NC) contact
  The output contact has a Current Rating of 6 Amps and is made of Silver.

Figure 2: Detailed view of the wiring diagram and terminal markings on the Finder 706184000000PAS relay. The diagram illustrates the connections for the three-phase input (A1, A2, A3) and the single changeover output contact (11, 14, 12).

Operating Instructions

Once correctly installed and wired, the Finder 706184000000PAS relay operates automatically to monitor the three-phase supply.

• Power On: Upon application of the correct three-phase voltage (208-480V AC, 50/60Hz) with the correct phase sequence, the relay will energize.
• Status Indicator: The integrated indicator light on the front panel provides visual feedback on the relay's status.
  • Indicator ON: Indicates normal operation (correct phase sequence and no phase loss). The output relay is energized (contact 11-14 closed, 11-12 open).
  • Indicator OFF: Indicates an error condition (incorrect phase sequence or phase loss). The output relay is de-energized (contact 11-14 open, 11-12 closed).
• Monitoring Function: The relay continuously monitors the phase sequence and detects any loss of a phase. If an error is detected, the output relay will switch to its de-energized state, signaling the fault to connected control systems or shutting down protected equipment.

Maintenance

The Finder 706184000000PAS relay is designed for reliable, maintenance-free operation under normal conditions. However, periodic checks are recommended:

• Visual Inspection: Periodically inspect the relay and its connections for any signs of damage, discoloration, or loose wiring.
• Cleaning: Ensure the unit is free from dust and debris. Use a dry, soft cloth for cleaning. Do not use solvents or abrasive cleaners.
• Terminal Tightness: Verify that all screw terminals remain tight to prevent intermittent connections or overheating.

Always disconnect power before performing any inspection or maintenance.

Troubleshooting

If the relay does not operate as expected, consider the following:

• Relay Not Energizing (Indicator OFF):
  • Check if the three-phase supply voltage is within the specified range (208-480V AC).
  • Verify that all three phases are present and correctly connected to terminals A1, A2, and A3.
  • Confirm the phase sequence is correct. If the sequence is incorrect, the relay will not energize. Correct the phase rotation.
  • Inspect wiring for loose connections or breaks.
• Intermittent Operation:
  • Check for unstable supply voltage or intermittent phase loss.
  • Ensure all terminal screws are securely tightened.
• Output Contact Not Switching:
  • Verify the relay's indicator light status. If OFF, an input fault is present.
  • Check the load connected to the output contacts (11, 12, 14) to ensure it is within the 6 Amp current rating.

If problems persist after following these steps, contact a qualified electrician or Finder technical support.

Specifications

Warranty and Support

For information regarding product warranty, technical support, or service, please refer to the official Finder website or contact your authorized Finder distributor. Specific warranty terms and conditions may vary by region and product.