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Ampcontrol MPA3 User Manual

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MPA3 V5.4 MOTOR PROTECTION RELAY
(
Suitable for General Industrial Applications)
USER MANUAL
Issue: R0 Nov 2010
CRN: 8168
Ampcontrol User Manual Part No: 143402
Designed and Manufactured in Australia by Ampcontrol CSM Pty Limited.

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  • Page 1 MPA3 V5.4 MOTOR PROTECTION RELAY Suitable for General Industrial Applications) USER MANUAL Issue: R0 Nov 2010 CRN: 8168 Ampcontrol User Manual Part No: 143402 Designed and Manufactured in Australia by Ampcontrol CSM Pty Limited.

  • Page 2: Safety And Other Warnings

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 Safety and other Warnings WARNING! This safety alert symbol identifies important safety messages in this manual and indicates a potential risk of injury or even death to the personnel. When you see this symbol, be alert, your safety is involved, carefully read the message that follows, and inform other operators.

  • Page 3: Copyright Notice

    Before You Begin We would like to take a moment to thank you for purchasing the MPA3 V5 Motor Protection Relay. WARNING! To ensure the correct and safe operation of this equipment the user is to become completely familiar with the safety requirements and correct operating procedures detailed in this user manual.

  • Page 4: Table Of Contents

    2.2 Safe Use of Equipment ........................... 6 2.2.1 Changes to Equipment ........................6 2.2.2 Equipment Knowledge ........................6 Overview of MPA3 V5 Relay ..........................7 3.1 General Description ............................7 3.2 Protection Functions ............................7 3.3 Optional Monitoring Modules........................... 8 3.3.1 MPA-M ..............................
  • Page 5 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 Energy Storage Module ............................. 19 MPA Alarm Functions ............................19 15.1 High Current Alarm: ........................... 19 15.2 Overload Alarm: ............................19 15.3 Under Current Alarm: ..........................19 15.4 Earth Leakage Alarm: ..........................

  • Page 6: Receiving And Storage

    Ampcontrol immediately. Notify Ampcontrol within 7 days (maximum) in case of shortages or discrepancies, according to the packing list. This action will help ensure a speedy resolution to any perceived problems. Keep a record of all claims and correspondence.

  • Page 7: General Safety

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 2 General safety 2.1 Personnel Safety Warnings 2.1.1 Relevant Personnel Ensure all personnel directly responsible or involved with the installation, operation and maintenance of the equipment reference this manual in conjunction with any relevant risk assessments to identify all foreseeable hazards.

  • Page 8: Overview Of Mpa3 V5 Relay

    3 Overview of MPA3 V5 Relay 3.1 General Description The Ampcontrol MPA Motor Protection Relay has been designed to provide optimum overload protection of small to medium sized 415 V motors used on conveyors, pumps, fans and compressors. It can also be used with higher voltage motors.

  • Page 9: Optional Monitoring Modules

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 3.3 Optional Monitoring Modules 3.3.1 MPA-M This optional monitoring module (MPA-M) can be utilised to provide the following features: Five PT-100 RTD inputs, which are arranged in two groups; three for the stator and two for the bearings.

  • Page 10: Trip/Status Messages

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 4.1 Trip/Status Messages The following table (Table 4.1) shows a list of the twenty-three status messages and the category (type) of the messages. Messages are cleared according to their message category.

  • Page 11: Current Related Functions

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 5 Current Related Functions 5.1 Overload Protection The motor overload function is based on a thermal model of the motor. The three phase currents are squared to provide the I R heating input to the motor model.
  • Page 12 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 The trip time is selected via the ‘6xI Trip t’ setting (Level 7, Position 2). It is a function of the current and the selected trip time curve. The drawing ‘MPA Motor Overload and Short Circuit Trip Times’, MPAB007, in Appendix A –...

  • Page 13: Short Circuit Protection

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 5.2 Short Circuit Protection The short circuit function has a definite time characteristic. If the current exceeds the selected level for the pre-set time then a trip occurs. The short circuit function trips the auxiliary relay. (The AUX relay is normally energised, and drops out when tripped).

  • Page 14: Residual Current Signal

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 5.4 Residual Current Signal The three phase current signals are summed electronically in the MPA to produce a residual current signal that can be used to detect earth fault currents. If the residual current signal exceeds the trip level for the selected trip time, a trip occurs, tripping the MTR relay.

  • Page 15: Metering

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 8 Metering The MPA Motor Protection relay provides the following information:  Phase Currents Current Balance   % Residual Current % Leakage Current  Trip Accumulator (thermal capacity indicating how close to a trip condition) ...

  • Page 16: Under-Voltage Trip

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 The ‘testing’ phase takes 3 seconds during which time the IT input must remain active in order to obtain a valid result. The last IT result is retained in memory and displayed until a subsequent test or power down.

  • Page 17: Analogue Output

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 The RTD temperatures for group 1 and group 2 can be viewed on the ‘Temperature Information’ Page, Level 2, Positions 1 and 2 respectively. The measurement range is 0°C to 210°C. Values greater than 210°C represent an...

  • Page 18: Modbus Communications

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 13.1 Modbus Communications The baud rate is selected via the ‘Modbus:’ setting (Level 7, Position 25) and is selectable between 1200 and 9600 Baud, with even, odd, or no parity. One stop bit is used in conjunction with parity, while two stop bits are used with no parity.

  • Page 19: Ethernet/Ip Communications

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 13.2 EtherNet/IP Communications 13.2.1 Ethernet Network Configuration The Ethernet connection allows for the setting of the MPA’s IP Address, Default Gateway Address and Subnet Mask. The IP Address can only be set statically using the MPA configuration menu. Dynamic address configuration protocols such as DHCP or BOOTP cannot be used.

  • Page 20: Energy Storage Module

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 14 Energy Storage Module The Energy Storage Module (MPA-E) allows the MPA Relay to function normally for a period of two (2) seconds during an extreme power dip or power loss.

  • Page 21: Adjustable Settings

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 16 Adjustable Settings The MPA settings can be reviewed and/or adjusted by selecting the 'MPA Settings Information' Page, Level 7. At this level all the adjustable parameters are listed with their current value.

  • Page 22: Ethernet Settings

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 16.3 Ethernet Settings IP Addr 3 IP Addr 2 These four parameters are combined to create the 32 bit IP address for the device IP Addr 1 IP Addr 0...

  • Page 23: Digital Inputs

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 17 Digital Inputs The MPA provides six voltage free digital inputs for correct operation. To activate an input a connection needs to be made from '+DiPwr' terminal to the respective digital input’s terminal. The status of each input can be viewed on the 'MPA I/O Status Information' Page, Level 5, Position 2 and 3.
  • Page 24 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 An example typical display is as follows: LOG 10: EL TRIP MO 15/05 09:46:21 This log indicates that an earth leakage fault caused a trip condition on Monday, 15 May at 9.46am. Log 10 indicates that it is the 10th log in the list.

  • Page 25: Advanced Display Operation

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 20 Advanced Display Operation The MPA display is structured to allow experienced users quicker access to information. This is achieved by the use of the 'ENT' and 'ESC' keys to move quickly around the display structure.

  • Page 26: Mpa Specifications

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 22 MPA Specifications Feature Details Auxiliary Supply Volts: 240VAC ± 20%, 50Hz ± 2 Hz or 110VAC ± 20%, 50Hz ± 2 Hz Trip Setting: 0.001x to 0.005x CT Ratio and ‘Off’.
  • Page 27 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 Feature Details ALM, AUX 1 N/O 5A/250VAC MPA3 V5.4 Motor Protection Relay Manual MPAB009 Rev0 Page 26...

  • Page 28: Mpa Comms. Address Table

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 23 MPA Comms. Address Table Modbus Description Bitmask Address Modbus Description Bitmask DELIBERATELY LEFT Address BLANK Relay Status Internal status Bit0 = Main Trip Relay (MTR) (EtherNet/IP only)
  • Page 29 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 Modbus Modbus Description Bitmask Description Bitmask Address Address RTD4 Temp (0..210 degC) 00FF 97..128 = 41..80A 129..160 = 82..160A DELIBERATELY LEFT BLANK 161..192 = 164..320A 193..224 = 328..640A RTD5 Temp (0..210 degC)
  • Page 30 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 Modbus Modbus Description Bitmask Description Bitmask Address Address 13 = 9 7 = 80% 14 = 9.5 8 = 88% 15 = 10 9 = 96% 16 = Off...
  • Page 31 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 Modbus Modbus Description Bitmask Description Bitmask Address Address 1 = Di1 2 = Key 3 = Di1/K 4 = OFF DELIBERATELY LEFT Insulat. Test Trip (Meg.ohm): BLANK 0 = ??? 1 = 1.0...
  • Page 32 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 Modbus Description Bitmask Address Notes: RTD G2 Alarm (deg.C): 1) MPA is a Modbus Slave RTU device 0 = ???? 2) Supported Modbus Commands: 1 = 50 2 = 60 03: Read Set points &Actual Values...

  • Page 33: Maintenance & Disposal

    MPA3 can seriously compromise the safety of the unit and the consequence can be fatal. The MPA3 V5 Motor Protection Relay does not have any customer serviceable parts and is not provided with any user adjustments.

  • Page 34: Equipment List

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 25 Equipment List 25.1 Base Models and Options Part Nos. Optional Monitoring Serial Communications Auxiliary Extended Modules Option Supply Service PART NUMBER MODEL DESCRIPTION Insulation Over- RS485 Volts...

  • Page 35: Appendix A - Drawings

    MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 Appendix A – Drawings Drawing Number Description MPAE001 Connection Diagram MPAB003 MPA Display Map MPAB007 Motor Overload and Short Circuit Curves MPAA007 Case Dimensions The drawings appear in the following pages in the same order in which they are listed in the table above.
  • Page 36 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 MPA3 V5.4 Motor Protection Relay Manual MPAB009 Rev0 Page 35...
  • Page 37 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 MPA3 V5.4 Motor Protection Relay Manual MPAB009 Rev0 Page 36...
  • Page 38 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 MPA3 V5.4 Motor Protection Relay Manual MPAB009 Rev0 Page 37...
  • Page 39 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 MPA3 V5.4 Motor Protection Relay Manual MPAB009 Rev0 Page 38...
  • Page 40 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 MPA3 V5.4 Motor Protection Relay Manual MPAB009 Rev0 Page 39...
  • Page 41 MPA3 V5.4 MOTOR PROTECTION RELAY MANUAL Issue: R0, CRN: 8168, Date: 11/2010 MPA3 V5.4 Motor Protection Relay Manual MPAB009 Rev0 Page 40...

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