AC-PRO Communications

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AC-PRO trip unit Modbus communications

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Utility Relay Company AC-PROTM Communications: 

Utility Relay Company AC-PRO TM Communications AC-PRO trip unit Modbus communications option

PowerPoint Presentation: 

Uses Modbus RTU protocol RS-485 Port on bottom of AC-PRO PT Module cable connector on bottom of AC-PRO Up to 32 trip units daisy-chained on one shielded twisted pair Each AC-PRO set to unique address RS-485 Port PT Module Cable Connector General Features

PowerPoint Presentation: 

Currents, 3-phase Ground Fault current Unbalance current Line-to-Line Voltages, 3-phase Line-to-Neutral Voltages, 3-phase KW, 3-phase KVA, 3-phase Power Factor data AC-PRO settings KW-Hrs Information Available Through Communications Real time current, voltage and power

PowerPoint Presentation: 

Breaker open or closed Overload and alarm conditions AC-PRO self test OK Breaker Status Information Historical Information Last trip data including type of trip and phase currents at time of trip Trip counter by type of trip

PowerPoint Presentation: 

Force trip (only if enabled in AC-PRO settings) Clear last trip data Operate Relay #1 Operate Relay #2 Reset KW-Hrs Change protective settings Reset alarm condition Commands Sent to AC-PRO Through Communications

PowerPoint Presentation: 

AC-PRO breaker retrofit kit with communications option & PT Module RS-485 twisted pair wiring RS-485 to Ethernet converter (optional) Commercially available converter, or Local Communications Interface (LCI from URC) Human-Machine-Interface (HMI) with Modbus driver System Components

PowerPoint Presentation: 

Breaker Mounted Components AC-PRO Trip Unit PT Module Fuses for Voltage Taps

PowerPoint Presentation: 

CTs and Actuator Connections

PowerPoint Presentation: 

Function of PT Module Provides voltage information to AC-PRO for voltage and power calculations Provides control power to AC-PRO so communications can be maintained with low breaker current or with breaker open

PowerPoint Presentation: 

PT Module Connections Voltage Inputs: Models available for system voltages 208V 240V or 480V 480V or 600V Optional Inputs: “a” contact for breaker position Optional Form “C” Relays Closed Through Communications: Relay 1 Relay 2 5A @ 30Vdc & 125Vac Contacts Relays close for 100mS then reset Breaker line side voltage Optional connections Cable to AC-PRO

PowerPoint Presentation: 

AC-PRO with communications RS-485 wiring Computer with RS-485 port, HMI software and Modbus driver Typical RS-485 system AC-PRO on breaker RS-485 wiring Computer with RS-485 port

PowerPoint Presentation: 

AC-PRO with communications RS-485 connection for up to 32 AC-PRO trip units RS-485 to Ethernet LAN converter Ethernet LAN Computer with HMI software and Modbus driver Typical Ethernet system Ethernet to RS-485 converter Computer with HMI software

PowerPoint Presentation: 

Local Communications Interface (LCI) Locally mounted near switchgear RS-485 connection for up to 32 AC-PRO trip units 4 X 20 Character LCD For each AC-PRO displays: Currents Voltages KW & KVA KW-Hrs AC-PRO settings Last trip data & trip log Alarm codes Provides Ethernet port for connection to network

PowerPoint Presentation: 

Compatibility HMI systems with Modbus drivers including: Wonderware, INTOUCH Schneider Electric, PowerLogic SMS-3000 Schneider Electric, ION-Enterprise (in process) 888.289.2864 www.utilityrelay.com