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Woodward MFR 15 Manual

Protection relay & control
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37143A
MFR 15
Protection Relay & Control
Manual
Software Version 1.9xx / 2.0xx / 2.1xx / 3.0xx / 3.1xx
Manual 37143A

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Summary of Contents for Woodward MFR 15

  • Page 1 37143A MFR 15 Protection Relay & Control Manual Software Version 1.9xx / 2.0xx / 2.1xx / 3.0xx / 3.1xx Manual 37143A...
  • Page 2 Provides other helpful information that does not fall under the warning or caution categories. Woodward reserves the right to update any portion of this publication at any time. Information provided by Woodward is believed to be correct and reliable. However, Woodward assumes no responsibility unless otherwise expressly undertaken.

  • Page 3: Table Of Contents

    The information in this publication is no longer current, and may not reflect changes or safety issues that have occurred since the publication was originally released. Refer to the MFR 15 Packages manual 37354 for more recent information about the MFR 15 unit. Contents 1.
  • Page 4 Manual 37143A MFR 15 - Protection Relay & Control 4. F .................. 23 HAPTER UNCTIONAL ESCRIPTION Control Inputs ............................23 General Control Inputs ....................... 23 Control Inputs (Option Y)......................24 Control Inputs (Option G [GU/GF])..................... 24 Control Outputs............................. 25 Functional Table ........................... 26...
  • Page 5 Manual 37143A MFR 15 - Protection Relay & Control Vector / Phase Shift Monitoring (Option V).................68 df/dt (ROCOF) Monitoring (Option D)..................69 Independent Time-Overcurrent Monitoring (Option IS/IZ)............70 Overload Monitoring (Option PM) ....................72 Reverse/Reduced Power Monitoring (Option PM) ..............73 Unbalanced Load Monitoring (Option PS)..................74...
  • Page 6 Manual 37143A MFR 15 - Protection Relay & Control Illustrations and Tables Illustrations Figure 3-1: Wiring diagram up to version 1.9xx / 2.0xx......................11 Figure 3-2: Wiring diagram from version 3.0xx / 3.1xx ......................12 Figure 3-3: Power supply................................. 13 Figure 3-4: Wide range power supply............................

  • Page 7: Chapter 1. General Information

    Introduction ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ The MFR 15 model combines a synchronizer, load (kW) and power factor control via discrete outputs, and gen- erator protection and control into one unit. Different packages offer additional functionality. The detailed model description for the MFR 15 reads as follows: MFR15 15-h0000 B/ ABDEF..Z...

  • Page 8: Measurement Value Logging

    Manual 37143A MFR 15 - Protection Relay & Control Measurement Value Logging ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Voltage Voltage is displayed as three-phase r.m.s measurement of the phase-neutral and/or phase-phase voltages. Option Y utilizes single-phase r.m.s. measurement of the synchronizing voltage V L1-L2 This device can be ordered with the following measuring voltage input ranges (rated voltages). Please indi- cate the measuring voltage input required when ordering (refer to Technical Data on page 94): •...

  • Page 9: Extent Of Functions

    Manual 37143A MFR 15 - Protection Relay & Control Extent of Functions ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Depending on the model, the unit is equipped with the following functions: Function Option Package General functions 2 relay outputs, freely configurable (change-over contacts) Standard 1 ready for operation relay output (normally open contact)

  • Page 10: Chapter 2. Electrostatic Discharge Awareness

    CAUTION To prevent damage to electronic components caused by improper handling, read and observe the pre- cautions in Woodward manual 82715, Guide for Handling and Protection of Electronic Controls, Printed Circuit Boards, and Modules. Page 10/119 © Woodward...

  • Page 11: Chapter 3. Installation

    Manual 37143A MFR 15 - Protection Relay & Control Chapter 3. Installation Wiring Diagram up to Version 1.9xx / 2.0xx ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Interface SYNCHRONIZATION RS-232, RS-422, RS-485 Impulse or holding relay TTY, MOD bus slave CAN bus, modem Profi bus DP...

  • Page 12: Wiring Diagram From Version 3.0Xx / 3.1Xx

    Manual 37143A MFR 15 - Protection Relay & Control Wiring Diagram from Version 3.0xx / 3.1xx ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Interface SYNCHRONIZATION RS-232, RS-422, RS-485 Impulse or holding relay TTY, MOD bus slave CAN bus, modem Profi bus DP alternatively: +/- 20 mA...

  • Page 13: Power Supply (Standard)

    Manual 37143A MFR 15 - Protection Relay & Control WARNING All technical data and ratings indicated in this chapter are not definite! Only the values indicated under Technical Data on page 94 are valid! CAUTION A circuit breaker must be provided near to the unit and in a position easily accessible to the operator.

  • Page 14: Measuring Inputs

    Manual 37143A MFR 15 - Protection Relay & Control Measuring Inputs ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Generator Voltage Measuring voltage Figure 3-5: Measuring inputs - voltage Terminal Measurement Description 400V direct Measuring voltage L1 2.5 mm² or trans- Measuring voltage L2 2.5 mm² former Measuring voltage L3 2.5 mm²...

  • Page 15: Current

    Manual 37143A MFR 15 - Protection Relay & Control Current WARNING Prior to disconnecting the current transformer connections or the connections of the transformer which are located at the unit, make sure that the transformer is short-circuited. NOTE Grounding of the secondary of a current transformer must always be single-sided.

  • Page 16: Auxiliary And Control Inputs

    Manual 37143A MFR 15 - Protection Relay & Control Auxiliary and Control Inputs ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Discrete Inputs 18 to 250 Vac/dc Signal device Discrete input Figure 3-8: Discrete inputs Terminal Associated Description common (according to DIN 40 719 Part 3, 5.8.3)

  • Page 17: Auxiliary And Control Outputs

    Manual 37143A MFR 15 - Protection Relay & Control Auxiliary and Control Outputs ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Relay Outputs max. 250 V AC Relay output external device external device Relay output external device Figure 3-9: Relay outputs Description Form A contact main make Relay 1 (ready for operation) 2.5 mm²...

  • Page 18: Analog Outputs (Option A1 To A8)

    Manual 37143A MFR 15 - Protection Relay & Control Analog Outputs (Option A1 to A8) Possible combination The analog outputs and the interface may be combined as follows: Option ... A1 to A4 A6 to A8 • • simultaneous •...

  • Page 19: Controller Outputs

    Manual 37143A MFR 15 - Protection Relay & Control Controller Outputs The controllers are configured as three-position controllers in the standard version (made of a form C contact and a form A contact). If the Options QU are equipped, they are configured as a quasi-continuous controller with analog outputs.

  • Page 20: Interface (Options Su/Sb/Sf)

    Manual 37143A MFR 15 - Protection Relay & Control Interface (Options SU/SB/SF) ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ A B C D E A B C D A B C Figure 3-12: Interfaces Terminal Description A (X1) B (X2) C (X3) D (X4) E (X5)

  • Page 21: Can Bus Topology

    Manual 37143A MFR 15 - Protection Relay & Control CAN Bus Topology NOTE Please note that the CAN bus must be terminated with an impedance which corresponds to the wave impedance of the cable (e.g. 120 Ω). The CAN bus is terminated between CAN-H and CAN-L.

  • Page 22: Dpc - Direct Configuration Interface

    Manual 37143A MFR 15 - Protection Relay & Control DPC - Direct Configuration Interface NOTE Configuration with the direct configuration cable DPC (P/N 5417-557) is possible. A laptop/PC, the DPC cable, the program LeoPC1 version 3.1.1 or higher (included on CD Rom with unit), and the proper con- figuration files are required.

  • Page 23: Chapter 4. Functional Description

    Manual 37143A MFR 15 - Protection Relay & Control Chapter 4. Functional Description Control Inputs ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ General Control Inputs NOTE Starting with Version 2.1xx/3.1xx the digital input "Remote acknowledgement" is on terminal 75. Start- ing with this version the double function of the digital input terminal 5/6 described below is being dropped.

  • Page 24: Control Inputs (Option Y)

    Manual 37143A MFR 15 - Protection Relay & Control Control Inputs (Option Release CB Energized..• CB is open Terminal 30/31 - Enables operation of the power circuit breaker (voltage and frequency control may also be enabled). • CB is closed - No function.

  • Page 25: Control Outputs

    Manual 37143A MFR 15 - Protection Relay & Control Control Outputs ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ NOTE A description of the relay manager may be found in Changing the Relay Assignment (Relay Manager) starting on page 83. Relay 1 Output relay (type: make contact, N.O.) Terminals 9/10 The "relay manager"...

  • Page 26: Functional Table

    Manual 37143A MFR 15 - Protection Relay & Control Functional Table ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Option Y Input signal Function Operation Discrete input: Discrete input: Discrete input: "Reply: "Enable CB" "Isolated CB is open" operation" energized de-energized No-load operation generator energized energized energized...

  • Page 27: Definition Of The Operating Modes (Option Y)

    Manual 37143A MFR 15 - Protection Relay & Control Definition of the Operating Modes (Option ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ No-Load Control The frequency and voltage are controlled at the configured set point levels when the circuit breaker is open. The conditions in Table 4-2: Operating mode conditions on page 26 for No-Load Control must be fulfilled to enable this functionality.

  • Page 28: Direction Of Power

    Manual 37143A MFR 15 - Protection Relay & Control Direction of power ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ If the unit's current transformers are wired according to the pin diagram shown, the following values are indi- cated: Positive generator active load The generator supplies active load.

  • Page 29: Power Factor Definition

    Manual 37143A MFR 15 - Protection Relay & Control Power Factor Definition ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ The phasor diagram is used from the generator's view. This defines the following definitions. Power Factor is defined as a ratio of the real power to apparent power. In a purely resistive circuit, the voltage and current waveforms are instep resulting in a ratio or power factor of 1.00 (often referred to as unity).
  • Page 30 Manual 37143A MFR 15 - Protection Relay & Control Phasor diagram: inductive capacitive Page 30/119 © Woodward...

  • Page 31: Alarms

    Manual 37143A MFR 15 - Protection Relay & Control Alarms ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Alarm Messages Table 4-3 contains a list of all alarm messages that the control may monitor for depending on how the unit is con- figured: Alarm type Alarm text...

  • Page 32: Chapter 5. Display And Operating Elements

    Manual 37143A MFR 15 - Protection Relay & Control Chapter 5. Display and Operating Elements The pressure-sensitive membrane of the front panel consists of a plastic coating. All keys have been designed as touch-sensitive membrane switch elements. The display is an LC-display, consisting of 2 rows of 16 characters each, with indirect green lighting.

  • Page 33: Leds

    Manual 37143A MFR 15 - Protection Relay & Control LEDs ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ NOTE If neither of the "Wye" and "Delta" LEDs is illuminated, the first line of the display indicates the meas- ured currents of the phases. "Wye" Indication of the wye voltages...

  • Page 34: Push Buttons

    Manual 37143A MFR 15 - Protection Relay & Control Push Buttons ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ In order to facilitate the setting of the parameters the buttons are equipped with an "AUTOSCROLL" function while the controller is in the configuration mode. It permits the user to rapidly advance to the next setting and configuration screens, the digits, or the cursor position.

  • Page 35: Lcdisplay

    Manual 37143A MFR 15 - Protection Relay & Control LCDisplay ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ LC Display LC display Performance values can be monitored from the two-line display, provided that the control is in automatic mode. In configuration mode, the individual parameters are displayed.

  • Page 36: Display In Automatic Mode (Second Line Of The Display: Alarm Indication)

    Manual 37143A MFR 15 - Protection Relay & Control Display in Automatic Mode (Second Line of the Display: Alarm Indication) NOTE The user may scroll through the alarm messages that have occurred with the "Menu" button. Display in automatic mode, second line: alarm indication ---------------- 00.00 yyyyyyyyyy...

  • Page 37: Chapter 6. Configuration

    Manual 37143A MFR 15 - Protection Relay & Control Chapter 6. Configuration Configuration can be performed via the front panel push buttons and the front panel LC display or using a PC and the PC program LeoPC1 via the serial interface. If direct configuration via a PC is selected, the following baud rate is to be used: •...

  • Page 38: Basic Data

    Manual 37143A MFR 15 - Protection Relay & Control Basic Data ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Software version Software version x.xxxx This screen displays the software version loaded into the control (the last two xx are for software revisions which do not affect the function of the unit).
  • Page 39 Manual 37143A MFR 15 - Protection Relay & Control Breaking the seal number XXX YES/NO Code no. 000 Break? By entering "YES", you can break the seal and release the input mode. However, the sealing number is then increased by 1. Thus, it is possible at any time to check whether modifications have been made without the correct code number having been entered.

  • Page 40: Password (Starting With Version 2.0Xx / 3.0Xx)

    Manual 37143A MFR 15 - Protection Relay & Control Password (Starting with Version 2.0xx / 3.0xx) The unit is equipped with a three-level code and configuration hierarchy, which allows different user access to the control. A distinction is made between:...

  • Page 41: Change Passwords

    Manual 37143A MFR 15 - Protection Relay & Control Change Passwords Define level 1 password 0000 to 9999 Define level 1 code 0000 This screen appears only when the level 2 password has been entered. After enter- ing the digits into this screen, the code level for level 1 (basic service level) is en- abled.

  • Page 42: Direct Configuration (From Version 3.0Xx)

    Manual 37143A MFR 15 - Protection Relay & Control Direct Configuration (from Version 3.0xx) ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ NOTE A direct configuration cable DPC (P/N 5417-557), the LeoPC1 program (supplied with the cable) and the corresponding configuration files are required to perform direct configuration. After the program has been installed, consult the online help for a description of the PC program and its setup.

  • Page 43: Measurement

    Manual 37143A MFR 15 - Protection Relay & Control Measurement ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ WARNING The following values must be entered correctly for the generator to be monitored. Failure to do so may lead to incorrect measuring of parameters resulting in damage to or destruction of the generator and/or personal injury or death.

  • Page 44: Current Measurement

    Manual 37143A MFR 15 - Protection Relay & Control With Option G Potential transformer secondary [1] 50 to 125 V; [4] 50 to 480 V Volt.transformer secondary 000V The potential transformer secondary voltage is set here in V. This parameter is util- ized to calculate the system voltage in the display.

  • Page 45: Power Measurement

    Manual 37143A MFR 15 - Protection Relay & Control Power Measurement NOTE With a positive real power, a positive real current flows in the "k-l" direction in the CT. Positive reactive power means that with a positive effective direction, inductive reactive (lagging) current flows in the ef- fective direction.

  • Page 46: Control Functions

    Manual 37143A MFR 15 - Protection Relay & Control Control Functions ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Synchronization (Option The control unit calculates internally the electrical angle of advance to issue the circuit breaker closure command. The corresponding lead-time remains constant due to the inherent delay of the breaker regardless of the fre- quency differential of the two systems.
  • Page 47 Manual 37143A MFR 15 - Protection Relay & Control Output signal for circuit breaker closure constant/impulse Signal CB On Logic impulse constant ..The "Synchronization" relay (terminals 27/28/29) can be wired di- rectly into the holding circuit of the circuit breaker. After the CB close command has been issued and the circuit breaker reply has been received, the "Synchronization"...

  • Page 48: Dead Bus Closure (Option Y)

    Manual 37143A MFR 15 - Protection Relay & Control Dead Bus Closure (Option Closing the circuit breaker can be accomplished even if the synchronization voltage is not present. The breaker close command is issued if the following conditions are met: •...

  • Page 49: No-Load Control

    Manual 37143A MFR 15 - Protection Relay & Control No-Load Control Automatic no-load control ON/OFF Aut.idle running control ON....With the power circuit breaker open and terminal 3 de-energized (CB disabled), frequency and voltage is controlled if the minimum per- missible generator frequency and voltage have been reached.
  • Page 50 Manual 37143A MFR 15 - Protection Relay & Control Increase of set point potentiometer frequency 0.10 to 10.00 Hz/s Setpoint voltage Poti f 00.00Hz/s The influence of the increase indicates the speed (in Hz per second) at which the Set point "variable"...

  • Page 51: Active Power Controller (Option B)

    Manual 37143A MFR 15 - Protection Relay & Control Droop Controller droop characteristic curve 00.0 to 20.0 % Freq. controller Droop 00.0% If this control is to be operated on a generator in parallel with other generators and frequency control is enabled, a droop characteristic curve must be used. Each gen-...
  • Page 52 Manual 37143A MFR 15 - Protection Relay & Control Maximum value scaling 0 to 32,000 kW External setp 20mA = 00000kW This parameter is only displayed if the parameter "External setp. Adjustment" has been enabled. The maximum control value for the active power is defined here (e.g.
  • Page 53 Manual 37143A MFR 15 - Protection Relay & Control Active power controller dead band reduction 1.0 to 9.9 Power controller Sens.red. *0.0 The dead band is increased by the factor configured here to further reduce wear on speed control, automatic voltage regulator and the output contacts. The dead band will only be increased by the configured factor after the control has not issued a raise/lower pulse for 5 seconds.

  • Page 54: Voltage Controller (Option Y/G/Gu)

    Manual 37143A MFR 15 - Protection Relay & Control Voltage Controller (Option Y/G/GU) Voltage controller ON/OFF Volt. controller ON ....Generator voltage control is enabled. The subsequent screens of this function are displayed. OFF ....Generator voltage control is disabled. The subsequent screens of this function are not displayed.
  • Page 55 Manual 37143A MFR 15 - Protection Relay & Control Three-Position Controller (Standard) Voltage controller insensitivity [1] 0.1 to 15.0 V; [4] 0.5 to 60.0 V Volt. controller Dead band 00.0V Isolated operation.. The generator voltage is controlled in such a manner that the...

  • Page 56: Power-Factor Controller (Option C)

    Manual 37143A MFR 15 - Protection Relay & Control Droop Controller droop characteristic curve 00.0 to 20.0 % Volt. controller Droop 00.0% If this control is to be operated on a generator in parallel with other generators and voltage control is enabled, a droop characteristic curve must be used. Each genera-...
  • Page 57 Manual 37143A MFR 15 - Protection Relay & Control Power Factor Set Point Power factor controller set point i0.70 to 1.00 to c0.70 Pow.fact. contr. Setpoint 0.00 The generator may be operated at a predefined power factor when operated in par- allel with the mains.
  • Page 58 Manual 37143A MFR 15 - Protection Relay & Control Three-Position Controller (Standard) Power factor controller insensitivity 0.5 to 25.0 % Pow.fact. contr. Dead band 00.0% The unit automatically calculates the amount of reactive power required to maintain the power factor set point when operating in parallel with the mains. The reactive...

  • Page 59: Shutdown

    Manual 37143A MFR 15 - Protection Relay & Control Shutdown Power Reduction with Shutdown Command Shutdown in mains parallel operation (only with Option The control must be in a mains parallel operation (the circuit breaker closed and the discrete input "isolated op- eration"...

  • Page 60: Active Power Distribution (Option W)

    Manual 37143A MFR 15 - Protection Relay & Control Active Power Distribution (Option The control functionality in an isolated parallel operation ensures equal load sharing among the generators. Each MFR-15 participating in the load sharing controls its generator so that the primary control variable (frequency) remains constant.

  • Page 61: Reactive Power Distribution (Option O)

    Manual 37143A MFR 15 - Protection Relay & Control Reactive Power Distribution (Option In isolated operation in parallel with other gensets, the function ensures an even distribution of reactive power to all machines operating in parallel with the busbar. Each controller involved in distribution control influences the machine to which it is assigned in such a manner that the rated voltage (main control variable) which has been set remains constant.

  • Page 62: Type Of Monitoring

    Manual 37143A MFR 15 - Protection Relay & Control Type of Monitoring ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ NOTE The following screen will not be displayed, if the parameter "Volt.-Measuring" is configured to "Phase to phase" power measurement. (refer to Voltage Measurement on page 43).

  • Page 63: Protection

    Manual 37143A MFR 15 - Protection Relay & Control Protection ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Overvoltage Monitoring (Option Function: "Voltage not within permissible limits" The monitored voltage in at least one phase is not within the configured permissible limits for overvoltage. The alarm message "Overvolt.1" or "Overvolt.2" will be displayed. This message cannot be suppressed with the discrete input "Blocking of protective functions / remote acknowledgement".

  • Page 64: Undervoltage Monitoring (Option U)

    Manual 37143A MFR 15 - Protection Relay & Control Undervoltage Monitoring (Option Function: "Voltage not within permissible limits" The monitored voltage in at least one phase is not within the configured permissible limits for undervoltage. The alarm message "Und.volt.1" or "Und.volt.2" will be displayed. This message cannot be suppressed with the discrete input "Blocking of protective functions / remote acknowledgement".

  • Page 65: Voltage Asymmetry Monitoring (Option U)

    Manual 37143A MFR 15 - Protection Relay & Control Voltage Asymmetry Monitoring (Option The phase-phase voltages are monitored. Function "Voltage asymmetry not within permissible limits" The monitored phase-phase voltage differential in the three phases is not within the configured permissible limits for asymmetry (asymmetric voltage vectors;...

  • Page 66: Overfrequency Monitoring (Option U)

    Manual 37143A MFR 15 - Protection Relay & Control Overfrequency Monitoring (Option The frequency monitoring is performed on two levels. The frequency measuring is monitored three-phase if all voltages are greater than 15 % of the rated value (100 V or 400 V). This ensures quick and precise measurement of the frequency.

  • Page 67: Underfrequency Monitoring (Option U)

    Manual 37143A MFR 15 - Protection Relay & Control Underfrequency Monitoring (Option The frequency monitoring is performed on two levels. The frequency measuring is monitored three-phase if all voltages are greater than 15 % of the rated value (100 V or 400 V). This ensures quick and precise measurement of the frequency.

  • Page 68: Vector / Phase Shift Monitoring (Option V)

    Manual 37143A MFR 15 - Protection Relay & Control Vector / Phase Shift Monitoring (Option A vector/phase shift is defined as the sudden variation of the voltage curve which may be caused by a major gen- erator load change. The control unit measuring circuit detects the change in the cycle duration. This change in the cycle duration is compared with a mean value calculated from previous measurements.

  • Page 69: Df/Dt (Rocof) Monitoring (Option D)

    Manual 37143A MFR 15 - Protection Relay & Control df/dt (ROCOF) Monitoring (Option Function: "Rate Of Change Of Frequency (ROCOF) is not within permissible limits" Rate of Change Of Frequency (ROCOF) monitoring measures the stability of the frequency. The frequency of a generator will vary due to changing loads and compensation of the fuel system.

  • Page 70: Independent Time-Overcurrent Monitoring (Option Is/Iz)

    Manual 37143A MFR 15 - Protection Relay & Control Independent Time-Overcurrent Monitoring (Option IS/IZ) NOTE All percentage values of the current refer to the rated current (page 44). Function: Current is monitored depending on parameter "Overcurrent Monitoring". The time-overcurrent alarm contains three limits and can be setup as a step definite time overcurrent alarm as illustrated in the figure below.
  • Page 71 Manual 37143A MFR 15 - Protection Relay & Control Threshold independent time-overcurrent, level 2 0 to 300 % Overcurrent 2 I> 100% Overcurrent (level 2) is defined by this parameter. The percentage configured in this parameter refers to the configured rated system current (refer to page 44). If this limit is reached or exceeded, the unit outputs the message "overcur-...

  • Page 72: Overload Monitoring (Option Pm)

    Manual 37143A MFR 15 - Protection Relay & Control Overload Monitoring (Option NOTE All percentage values refer to a percentage of the configured rated power (page 44). Function: "Positive active load not within the permissible range" The single-phase or three-phase active load is above the configured limit for overload. The message "over- load"...

  • Page 73: Reverse/Reduced Power Monitoring (Option Pm)

    Manual 37143A MFR 15 - Protection Relay & Control Reverse/Reduced Power Monitoring (Option NOTE All percentage values refer to a percentage of the configured rated power (page 44). Function: "Active power not within the permissible range" The generator power limits may be configured as reduced power or reverse power depending on the threshold value configured in the control.

  • Page 74: Unbalanced Load Monitoring (Option Ps)

    Manual 37143A MFR 15 - Protection Relay & Control Unbalanced Load Monitoring (Option NOTE All percentage values refer to a percentage of the configured rated power (page 44). Function: "Unbalanced load not within the permissible range" The percentage threshold value indicates the permissible variation of phase current from the arithmetic mean value of all three-phase currents.

  • Page 75: Power Factor Monitoring (Option Zc)

    Manual 37143A MFR 15 - Protection Relay & Control Power Factor Monitoring (option Function: "Power factor cos phi not within the admissible range" If the excitation of a generator is regulated by a reactive current governor, operation within the capacitive (un- derexcited) range could be avoided by interrupting the control signals by means of the ϕ-monitoring.

  • Page 76: Reactive Power Monitoring (Option Zq)

    Manual 37143A MFR 15 - Protection Relay & Control Reactive Power Monitoring (Option NOTE All percentage values refer to a percentage of the configured rated power (page 44). Function: "Reactive power not within the permissible range" The control may monitor the reactive power and provide protection against excessive inductive (over excitation) or capacitive (under excitation) load conditions.

  • Page 77: Load Shift Monitoring (Option Zw)

    Manual 37143A MFR 15 - Protection Relay & Control Load Shift Monitoring (Option NOTE All percentage values refer to a percentage of the configured nominal power (page 44). Function: "Active Load Surges not within the admissible range" The unit logs the three-phase current reactive power by means of the 3 phase voltages and the 3 wire currents.

  • Page 78: Power Limit Monitoring (Option Pz)

    Manual 37143A MFR 15 - Protection Relay & Control Power Limit Monitoring (Option NOTE All percentage indications of the power refer to the rated power (page 44). Function: "Power maximum exceeded" (boost slave genset)" If the generator active power exceeds the set threshold value "Boost", a message "Boost slave genset" can be output after expiration of the set boost delay time.

  • Page 79: Busbar Voltage Monitoring (Option Us)

    Manual 37143A MFR 15 - Protection Relay & Control Busbar Voltage Monitoring (Option NOTE To monitor busbar voltage, voltage on terminals 70/71 is used. This is designated using synchroni- zation voltage. Monitoring the busbar voltage is carried out single-phase utilizing the phase-to-phase...

  • Page 80: Busbar Frequency Monitoring (Option Us)

    Manual 37143A MFR 15 - Protection Relay & Control Busbar Frequency Monitoring (Option NOTE To monitor the busbar frequency, the voltage at terminals 70 to 72 is used. This is called synchroni- zation voltage. Function "Busbar frequency not within permissible limits"...

  • Page 81: Relay Configuration

    Manual 37143A MFR 15 - Protection Relay & Control Relay Configuration ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ NOTE Clearing of faults and fault messages from the control unit will depend on the parameters "Exter- nal clearing", "Auto-clearing Relays", and "Auto-clearing Display". These three parameters will influence the other depending on how each is configured. This is explained in the following text.

  • Page 82: Auto Acknowledgement Of The Relays

    Manual 37143A MFR 15 - Protection Relay & Control Auto Acknowledgement of the Relays Relay auto acknowledgment ON/OFF Auto-clearing Relays ON ....Automatic clearing of the relays is enabled. The relays are automati- cally reset when the fault condition is no longer detected. The alarm message in the display is cleared according to how the parameter "Auto-clearing Display"...

  • Page 83: Auto Acknowledgement Of Messages

    Manual 37143A MFR 15 - Protection Relay & Control Auto Acknowledgement of Messages Messages auto acknowledgment ON/OFF Auto-clearing Display ON....After the alarm condition is no longer detected, the message in the display is deleted. OFF....The alarm message remains in the display after the fault condition is no longer detected until manually cleared.

  • Page 84: Table 6-2: Protective Device Output To Relay

    Manual 37143A MFR 15 - Protection Relay & Control Output of the protective units to the relays 0 to 3 xxxxxxxxxxxxxxxx to relay 0000 Each digit in this parameter is used to assign one relay to a protective function. Up to four relay outputs may be assigned to a protective function.

  • Page 85: Pulse Output Of The Positive Active Energy (Option M)

    Manual 37143A MFR 15 - Protection Relay & Control Pulse Output of the Positive Active Energy (Option ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ NOTE If the negative active power or the positive and negative reactive power must be logged, use a measur- ing transducer such as the Woodward UMT 1.

  • Page 86: Analog Outputs (Options A1/2/3/4/6/8)

    Manual 37143A MFR 15 - Protection Relay & Control Analog Outputs (Options A1/2/3/4/6/8) ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ NOTE The common use of the analog outputs, the interfaces and the discrete inputs depends on their re- spective combinations. Please pay attention to the combinations possible as described in the intro- duction.
  • Page 87 Manual 37143A MFR 15 - Protection Relay & Control Example: analog output 2 (-10/0 to 10 V: terminals 50/52, -20/0/4 to 20 mA: terminals 52/53) Output of the phase-to-phase voltage V L1-L2 Output range of the (20 mA) –20..+20 / 0..20 / 4..20 mA / OFF...

  • Page 88: Interface (Options Su/Sb)

    Manual 37143A MFR 15 - Protection Relay & Control Interface (Options SU/SB) ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ CAUTION The communications bus interface functionality is disabled when the direct configuration port is en- abled. The parameter "Direct parametr." must be set to "NO" to re-enable the communication bus inter- face (refer to "Direct Configuration (from Version 3.0xx)"...

  • Page 89: Screens For Protocol Can Bus (Options Su/Sb)

    Manual 37143A MFR 15 - Protection Relay & Control Screens for Protocol CAN Bus (Options SU/SB) NOTE Please note that IDs must not be allocated twice. This applies to all units linked to the bus system. Moreover, all IDs adjusted at the unit must be set to different values.

  • Page 90: General Screens For All Interfaces (Option Sb)

    Manual 37143A MFR 15 - Protection Relay & Control General Screens for All Interfaces (Option Control via interface ON/OFF Serial control ON ....Control via the serial interface is enabled and control orders received via the interface are processed. OFF ....Control via the serial interface is disabled and control orders received via the interface are ignored.

  • Page 91: Chapter 7. Commissioning

    Manual 37143A MFR 15 - Protection Relay & Control Chapter 7. Commissioning DANGER - HIGH VOLTAGE When commissioning the control, please observe all safety rules that apply to the handling of live equipment. Ensure that you know how to provide first aid in the event of an uncontrolled release of en- ergy and that you know where the first aid kit and the nearest telephone are.
  • Page 92 Manual 37143A MFR 15 - Protection Relay & Control Now, proceed as follows to change the code level: until version 1.9xx: Sealing function Encoding Enter: "ON" select and confirm using the "Select" button Code input Code no. 000 Code? ????? Enter: Button "Select".

  • Page 93: Appendix A. Dimensions

    Manual 37143A MFR 15 - Protection Relay & Control Appendix A. Dimensions Front view Configuration plug Back view with connecting terminals Back plate mounting optionally Configuration plug Bottom view Option Configuration plug Option A6/A8 Configuration plug 2003-01-31 | MFR 1 Dimensions r1ww-0503-ab.skf Figure 7-1: Dimensions ©...

  • Page 94: Appendix B. Technical Data

    Manual 37143A MFR 15 - Protection Relay & Control Appendix B. Technical Data Nameplate ------------------------------------------------------------------------------------------------------ Serial number (numerical) Date of production (YYMM) Serial number (Barcode) Item number Item revision number Details Technical data Type Description (long) Type Description (short) UL sign...
  • Page 95 Manual 37143A MFR 15 - Protection Relay & Control Discrete inputs----------------------------------------------------------------------------------------isolated - Input range (V )..........Rated voltage 18 to 250 Vac/dc Cont, discrete input - Input resistance....................approx. 68 kΩ Relay outputs ----------------------------------------------------------------------------------potential free - Contact material....................... AgCdO - General purpose (GP) (V Cont, relay output AC ........

  • Page 96: Appendix C. Measured Quantities And Accuracy

    Manual 37143A MFR 15 - Protection Relay & Control Appendix C. Measured Quantities and Accuracy Measuring value Display/range Accuracy Note Frequency 40.0 to 80.0 Hz 0.05 Hz Voltage 0 to 520 V/0 to 65 kV Accuracy depending on the configured transformer ratio...

  • Page 97: Appendix D. Interface Telegram

    Manual 37143A MFR 15 - Protection Relay & Control Appendix D. Interface Telegram Communication Interface Addresses ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Transmission Message Number Content (words) Unit Remark 3964 Modbus CAN bus Profibus Telegram header "302" Telegram type (02, 03) MUX=1 Voltage L12 (04, 05)
  • Page 98 Manual 37143A MFR 15 - Protection Relay & Control Number Content (words) Unit Remark 3964 Modbus CAN bus Profibus Internal alarms 2 Bit 15 = 1 \ (44, 45) MUX=8 Overfrequency level 1 Bit 14 = 0 / Bit 13...
  • Page 99 Manual 37143A MFR 15 - Protection Relay & Control Number Content (words) Unit Remark 3964 Modbus CAN bus Profibus Internal alarms 5 Bit 15 = 1 \ (50, 51) MUX=9 Internal Bit 14 = 0 / Bit 13 = 1 \...

  • Page 100: Receive Message

    Manual 37143A MFR 15 - Protection Relay & Control Receive Message Number Content (words) Unit Remark 3964 Modbus Set point value active power P 0 to 32000 (02, 03) Setpoint Set point value Power Power factor × -99 to 100 (04, 05) factor ϕ...

  • Page 101: Description Of The Data Format

    Manual 37143A MFR 15 - Protection Relay & Control Description of the Data Format ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ NOTE Certain addresses have two parts, the measured value and the exponent multiplier! Voltage and current 0 to 9999 without sign measured in [V, A], no exponent...

  • Page 102: Examples

    Manual 37143A MFR 15 - Protection Relay & Control Examples = 103, exponent = 2 103 × 10 [V] = 1,030 [V] = 10.3 kV = 80, exponent = -1 80 × 10 [A] = 8.0 [A] = 8.0 A = 123, exponent = 4 123 ×...

  • Page 103: Framework Data For The Interfaces

    Manual 37143A MFR 15 - Protection Relay & Control Framework Data for the Interfaces ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Framework Data for Procedure 3964 (TTY, RS-232, RS-485) String length......8 bit Stop bit ........1 bit Parity bit......1 bit with even parity Idle state ......This corresponds to the state log. "1" (20 mA with TTY) Data format ......16 bit binary value...

  • Page 104: Framework Data For Can Bus

    Manual 37143A MFR 15 - Protection Relay & Control Framework Data for CAN Bus Transmitting protocol ..CAN (CiA) Hardware ......CAN bus Transmission rate....adjustable Special characteristic ..Bt0 = 03, Bt1 = 1C Every 200 ms a data telegram of 8 bytes is sent, which is structured as follows (all word variables are in the high...

  • Page 105: Framework Data For Profibus Dp

    Manual 37143A MFR 15 - Protection Relay & Control Framework Data for Profibus DP Receiving Range Byte 0 and the following ..Telegram according to description Example: ......No. 1 - Byte 0/1 = telegram header "302" No. 2 - Byte 2/3 = voltage L12 No.

  • Page 106: Appendix E. List Of Parameters

    Manual 37143A MFR 15 - Protection Relay & Control Appendix E. List of Parameters Product number P/N _____________________________ Rev ______________________________ Version MFR 15 ______________________________________________________________ Project _____________________________________________________________________ Serial number S/N _______________ Date _____________________________ Option Parameter Setting range Default setting Customer setting...
  • Page 107 Manual 37143A MFR 15 - Protection Relay & Control Parameter Setting range Default setting Customer setting Option Freq. controller Dead band 0.02 to 1.00 Hz 0.10 Hz G/GF/Y Freq. controller Time pulse> 10 to 250 ms 80 ms Freq. controller gain 0.1 to 99.9...
  • Page 108 Manual 37143A MFR 15 - Protection Relay & Control Parameter Setting range Default setting Customer setting Option PROTECTION Volt. Monitoring Phase-neutral / Phase to phase Phase to phase Overvoltage Monitoring ON/OFF Overvoltage 1 V(ph-ph)> 20 to 130 / 520 V 110/440 V (Phase-N)>...
  • Page 109 Manual 37143A MFR 15 - Protection Relay & Control Parameter Setting range Default setting Customer setting Option PROTECTION Reactive power Monitoring ON/OFF Cap. react. pow. Response v. 0 to 100 % 30 % Cap. react. pow. Delay 0.02 to 99.98 s 0.10 s...
  • Page 110 Manual 37143A MFR 15 - Protection Relay & Control Parameter Setting range Default setting Customer setting Option RELAY CONFIGURATION Change relay- allocation YES/NO Funct. relay 123 (R=release) Boost command to relay 0 to 3 0000 Overvoltage L 1 to relay...
  • Page 111 Manual 37143A MFR 15 - Protection Relay & Control Parameter Setting range Default setting Customer setting Option ANALOG OUTPUT CONFIGURATION A2/3/6 Analog output 1 A1/4/8 -20 to +20mA -/+20mA -/+20mA -20 to.+20mA 0 to 20 mA 0-20mA 0-20mA 4 to 20 mA...
  • Page 112 Manual 37143A MFR 15 - Protection Relay & Control Parameter Setting range Default setting Customer setting Option ANALOG OUTPUT CONFIGURATION A6/8 Analog output 6 -20 to +20mA -/+20mA -/+20mA -20 to.+20mA 0 to 20 mA 0-20mA 0-20mA 4 to 20 mA...

  • Page 113: Table 7-1: Analog Outputs, Table Of Values

    Manual 37143A MFR 15 - Protection Relay & Control Value Lower and upper setting value 0 V, -10 V 10 V, 20 mA 0 mA, 4 mA, -20 mA Vol 1 0 to 65,000 V [LeoPC1: 0 to 32,000 V]...

  • Page 114: Appendix F. Service Options

    ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ If a control (or any part of an electronic control) is to be returned to Woodward for repair, please contact Wood- ward in advance to obtain a Return Authorization Number. When shipping the unit(s), attach a tag with the fol- lowing information: •...

  • Page 115: Packing A Control

    Stuttgart [+49 (711) 789 54-0]. They will help expedite the processing of your order through our distributors or local service facility. To expedite the repair process, contact Woodward in advance to obtain a Return Authoriza- tion Number, and arrange for issue of a purchase order for the unit(s) to be repaired. No work can be started until a purchase order is received.

  • Page 116: How To Contact Woodward

    +49 (711) 789 54-100 e-mail: stgt-info@woodward.com For assistance outside Germany, call one of the following international Woodward facilities to obtain the address and phone number of the facility nearest your location where you will be able to get information and service. Facility...

  • Page 117: Engineering Services

    MFR 15 - Protection Relay & Control Engineering Services ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ Woodward Industrial Controls Engineering Services offers the following after-sales support for Woodward prod- ucts. For these services, you can contact us by telephone, by e-mail, or through the Woodward website. • Technical support •...

  • Page 118: Technical Assistance

    Manual 37143A MFR 15 - Protection Relay & Control Technical Assistance ≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡≡ If you need to telephone for technical assistance, you will need to provide the following information. Please write it down here before phoning: Contact Your company____________________________________________________ Your name_______________________________________________________...
  • Page 119 Phone +49 (711) 789 54-0 • Fax +49 (711) 789 54-100 stgt-info@woodward.com Homepage http://www.woodward.com/power Woodward has company-owned plants, subsidiaries, and branches, as well as authorized distributors and other authorized service and sales facilities throughout the world. Complete address/phone/fax/e-mail information for all locations is available on our website (www.woodward.com).

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