WEG SRW 01 User Manual
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WEG SRW 01 User Manual

WEG SRW 01 User Manual

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SRW 01 (Ethernet)
User's Manual

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  • Page 1 Motors | Automation | Energy | Transmission & Distribution | Coatings Smart Relay SRW 01 (Ethernet) User's Manual...
  • Page 3 User’s Manual Series: SRW 01 Language: English Document Nº: 10002415831 / 01 Models: 0.25...840 A Software Version: 2.0X Publication Date: 11/2017...
  • Page 4 Summary of Reviews The information below describes the revisions made to this manual. Version Review Description V1.0X First edition V2.0X General review...

  • Page 5: Table Of Contents

    4.4 PARAMETER STRUCTURE ................. 4-3 4.5 PASSWORD FOR PARAMETERIZATION ............4-3 4.6 COPY FUNCTION ....................4-4 4.6.1 Procedure to Be Used to Copy Parameter Sets and/or User Programs from the SRW 01-A (Source) to the SRW 01-B (Destination) ......4-5...
  • Page 6 5.2 LOCAL/REMOTE COMMAND ................5-2 5.3 DIGITAL INPUTS AND OUTPUTS ................ 5-6 5.4 OPERATION MODES ..................5-10 5.4.1 SRW 01 Check Back ................. 5-10 5.4.2 Transparent Mode ..................5-12 5.4.2.1 Connection Diagram – Transparent Mode ........5-13 5.4.3 Overload Relay ..................5-13 5.4.3.1 Connection Diagram –...
  • Page 7 Contents 5.7.15 Tripping Class Programming Example ..........5-50 5.7.15.1 Reduction of the Time from Cold to Warm Starting ....5-51 5.7.16 Phase Sequence ..................5-51 5.7.17 Voltage Unbalance .................. 5-51 5.7.18 Phase Loss (Voltage) ................5-52 5.7.19 Overvoltage ....................5-53 5.7.20 Undervoltage ...................
  • Page 8 Contents...

  • Page 9: Quick Reference Of The Parameters

    6-10 P051 Current Imbalance Level 0 to 100 % 6-10 P052 Earth Fault Level 0 to 200 % 6-11 P053 Voltage Unbalance Level 0 to 100 % 6-11 P060 Number of Starts 0 to 65535 6-11 SRW 01 | 0-1...
  • Page 10 Number of Voltage Unbalance 0 to 65535 6-16 P101 Number of Phase Loss (Voltage) 0 to 65535 6-16 P102 Number of Overvoltage Trips 0 to 65535 6-17 P103 Number of Undervoltage Trips 0 to 65535 6-17 0-2 | SRW 01...
  • Page 11 0.000 to 10.000 A P156 Logical Status Third Error 0 to 65535 P157 Voltage L1-L2 Third Error 0 to 1000 V P158 Voltage L2-L3 Third Error 0 to 1000 V P159 Voltage L3-L1 Third Error 0 to 1000 V SRW 01 | 0-3...
  • Page 12 Star/Delta Time 1 to 999 s 25 s Sys, CFG 5-19 P211 Check Back Time 0.1 to 99.0 s 0.5 s Sys, CFG 5-12 P212 Motor Transition Time 0.01 to 99.00 s 0.05 s Sys, CFG 5-17 0-4 | SRW 01...
  • Page 13 Digital Output O7 Function See Options in P277 Sys, CFG P284 Digital Output O8 Function See Options in P277 Sys, CFG P294 Expansion Digital Unit (EDU) 0 = EDU Not Used Sys, CFG 3-10 1 = EDU Used SRW 01 | 0-5...
  • Page 14 4 = Digital Input I14 5 = Digital Input I15 6 = Digital Input I16 P602 Function Test/Reset Button 0 = Disabled Sys, rw 5-59 1 = Enabled P605 Hysteresis 0 to 15 % Sys, rw 5-33 0-6 | SRW 01...
  • Page 15 0.5 s Sys, rw 5-41 P634 Earth Leakage Protection Action 0 = Alarm Sys, rw 5-41 1 = Switch Off (Trip) P635 Earth Leakage Start Up Inhibit 0 = Disabled Sys, rw 5-41 1 = Enabled SRW 01 | 0-7...
  • Page 16 Sys, rw 5-56 P667 Power Under Factor Time 0 = Disabled Sys, rw 5-56 1 to 99 s = Enabled P668 Power Under Factor Protection 0 = Alarm Sys, rw 5-57 Action 1 = Switch Off (Trip) 0-8 | SRW 01...
  • Page 17 0 to 65535 Sys, rw 5-30 P850 Write Word #1 0 to 65535 Sys, rw 5-31 P851 Write Word #2 0 to 65535 Sys, rw 5-31 P852 Write Word #3 0 to 65535 Sys, rw 5-31 SRW 01 | 0-9...
  • Page 18 CFG = configuration parameter, it can only be changed with a stopped motor. Sys = system parameter. Its value is updated when the key is pressed. Us = User parameter. Its value is instantaneously updated by the HMI, even before pressing the key. 0-10 | SRW 01...

  • Page 19: Safety Instructions

    NOTE! For the purpose of this manual, qualified personnel are those trained to be able to: 1. Install, power-up, and operate the SRW 01 according to this manual and to the effective legal safety procedures. 2. Use protection equipment according to the established standards.
  • Page 20 (P202 = 1); digital outputs O1 and O2 are used to signal Trip NO (normally open) and Trip NC (normally closed), respectively. ATTENTION! The electronic boards contain components sensitive to electrostatic discharges. Do not touch components and connectors directly. NOTE! Read this manual completely before installing or operating the relay. 1-2 | SRW 01...

  • Page 21: General Information

    2 GENERAL INFORMATION 2.1 ABOUT THE MANUAL This manual presents the instructions for the installation and commissioning of the Smart Relay WEG, SRW 01, as well as its main characteristics. In order to get information on other functions, accessories and operation conditions, refer to the following manuals: Ladder programming manual –...
  • Page 22 RCD: according to IEC 60755, mechanical switching device (or device association developed to cause contacts to open when a residual current reaches a certain value under specific conditions (Residual Current Device). FLA: set current at full load (Full Load Amps). EDU: Expansion Digital Unit. 2-2 | SRW 01...

  • Page 23: About The Srw 01

    The SRW 01 has a modular design that allows the expansion of the relay functionalities. The Control Unit (UC) can be mounted together with the Current Measurement Unit (UMC), forming a single unit, or separated (up to 2 meters [6.56 ft]) from it.
  • Page 24 SRW 01 - UMC4 (125 A) (f) Current Measurement Unit - SRW 01 - UMC5 (420 A) (g) Current Measurement Unit (with busbar accessory) - SRW 01 - UMC6 (840 A) (h) Current/Voltage Measurement Unit - (i) Current/Voltage Measurement Unit - SRW 01-UMCT 1 (5 A), 2 (12.5 A) and 3 (25 A)/690 V...
  • Page 25 General Information (j) Current/Voltage Measurement Unit – SRW 01-UMCT 5 (l) Current/Voltage Measurement Unit – SRW 01-UMCT 6 (420 A/690 V) (840 A/690 V) – with busbar accessory 1 - SRW01-EL1 2 - SRW01-EL2 3 - SRW01-EL3 4 - SRW01-EL4 (m) Earth Leakage sensors - SRW01-ELS 1 - Digital input indication Led’s...

  • Page 26: Srw 01 Identification Label

    In order to specify the SRW 01 model, refer to the catalog available for download on the website: www.weg.net. 2.6 RECEIVING AND STORAGE The SRW 01 is supplied packed in a cardboard box. There is a label outside the box describing the product main characteristics: model, WEG part number, serial number, manufacturing date and firmware version.

  • Page 27: Power Factor

    Damage occurred during transportation. If any problem is detected, contact the carrier immediately. „ If the SRW 01 is not going to be installed soon, keep it in the closed package and store it in a clean and dry „...
  • Page 28 Figure 2.6 on page 2-8 from which the power relations can be obtained. Reactive power (kVAr) Real power (kW) Figure 2.6: Power triangle 2-8 | SRW 01...

  • Page 29: Installation And Connection

    Installation and Connection 3 INSTALLATION AND CONNECTION This chapter describes the procedures for the electrical and mechanical installation of the SRW 01. The orientations and suggestions shall be followed in order to guarantee personnel and equipment safety, as well as the proper operation of the relay.
  • Page 30 The Control Unit (UC) can be mounted together with the Current Measurement Unit (UMC), making a single unit, or separately (up to 2 meters). The Current/Voltage Measurement Unit (UMCT) only allows the mounting separate from the Control Unit (UC). 3-2 | SRW 01...

  • Page 31: Electrical Installation

    It is recommended the use of properly grounded shielded cables for the circuits of the PTC and earth leakage sensor (ELS). The connection of the cable shield to the protection earth must be as short as possible. ATTENTION! Terminal strip XC2 pin PE must obligatorily be connected to a protective earth. SRW 01 | 3-3...

  • Page 32: Relay Power Supply

    NOTE! The power supply must be compatible with the SRW 01 nominal voltage. The SRW 01 is fed through the terminals A1 and A2 from the terminal strips XC1 and XC6, respectively. Supply voltage: 110 to 240 Vac and Vdc.

  • Page 33: Current Measurement Unit (Umc) Connection

    Observe the correct connection between the terminals ( L1 → L1, L2 → L2 and L3 → L3). ATTENTION! If the connection T2 - L3 is used with a single-phase motor, then the SRW 01 earth fault protection will actuate.

  • Page 34: Connection Of The Current/Voltage Measurement Unit (Umct)

    Besides measuring the motor currents (like the UMC), it is possible to monitor the line voltages up to 690 V, phase sequence, power factor (cos ϕ) and all motor powers. The SRW 01 has 6 current/voltage measurement units: UMCT1 (0.5 – 5 A / 690 V) „...

  • Page 35: External Current Transformer (Ct) Use

    ≤ ± 2 %. The SRW 01 accepts CT secondary currents of 1 or 5 A. The Current Measurement Unit UMC1 or Current/ Voltage Measurement Unit UMCT1 (0.5 - 5 A) must be used in this type of application. If necessary, it is possible...

  • Page 36: Connection Of The Control Unit (Uc) Digital Inputs

    Figure 3.6: 24 Vdc digital inputs activation 3.9.1 Identification of the Digital Inputs Types (UC) The SRW 01 indicates the type of digital inputs of Control Unit, which is showed at the parameter P085. P085 – Type of Digital Inputs (UC)

  • Page 37: Connection Of The Control Unit (Uc) Digital Outputs

    Expansion Digital Unit (EDU) is not established, the Expansion Digital Unit (EDU) signalizes error through its status led in solid red. Refer to the Chapter 7 DIAGNOSIS on page 7-1 n this manual to obtain details on the Expansion Digital Unit (EDU) signalization leds. SRW 01 | 3-9...

  • Page 38: Connection Of The Expansion Digital Unit (Edu) Digital Inputs

    The digital inputs are activated applying either 24 Vdc or 110 Vac from an external power supply, and the terminal EC is the reference, as presented in the Figure 3.9 on page 3-11 Figure 3.10 on page 3-11. 3-10 | SRW 01...

  • Page 39: Connection Of The Expansion Digital Unit (Edu) Digital Outputs

    E1 and E2 of the Control Unit. The distance of the connections between the earth leakage sensor and the Control Unit must be the smallest possible. The maximum recommended is 10 m (32.8 ft). SRW 01 | 3-11...

  • Page 40: Short Circuit Ranges (Ul)

    (RMS) below 200.000 A with maximum voltage of 600 V. (This value of short circuit current is related to the use of non delayed fuses connected between the exterior enclosure/panel and the connector of the supply source (L2)). 3-12 | SRW 01...

  • Page 41: Human-Machine Interface (Hmi)

    4 HUMAN-MACHINE INTERFACE (HMI) The Human Machine Interface of SRW 01 has two models: one for vertical mounting (HMI) and one for horizontal mounting (HMI2). The HMI makes it possible the monitoring, parameterization, and copy of parameters and user programs. The recording of up to 3 parameter settings and/or user programs is possible.

  • Page 42: Keys

    - It changes the exhibition mode to parameter number (‘Pxxxx’). : If the SRW 01 is programmed for HMI as local command (P229 = 1) or for HMI as remote command (P232 = 1), this key is used to start the motor.

  • Page 43: Parameter Structure

    The parameter P206 factory setting is 3, thus showing the content of the parameter P003 (average current of the 3 phases) on the HMI. 4.4 PARAMETER STRUCTURE The SRW 01 parameters are divided into two groups: Table 4.1: Parameter Groups Group...

  • Page 44: Copy Function

    2. Data download: HMI to another SRW 01. After storing the parameters of the SRW 01 on the HMI it is possible to repass them to another relay using this function (P500). However, the relays must have the same hardware and the same firmware version. Refer to the identification label to verify the version of the product.

  • Page 45: Procedure To Be Used To Copy Parameter Sets And/Or User Programs From The Srw 01-A (Source) To The Srw 01-B (Destination)

    From this moment on the SRW 01-A and B will be with the same parameterization and/or user program. 6. In order to load the SRW 01-A parameters and/or user programs to other relays, repeat the steps 4 and 5 above.
  • Page 46 It selects the memory position available for saving or loading the SRW 01 user program. ATTENTION! If the SRW 01-A and B control different motors, but have the same wiring diagram, verify the SRW 01 B protection, motor and line parameters.

  • Page 47: Parameterization

    „ Configuration of phase loss (voltage). „ Configuration of overvoltage and undervoltage. „ Configuration of overpower and underpower. „ Configuration of power over factor and power under factor. „ Reset button selection. „ Auto-reset configuration. „ SRW 01 | 5-1...

  • Page 48: Local/Remoto

    “stop” will flash during 3 seconds on the HMI and the modification will not be accepted. 5.1 LOCAL/REMOTO This parameter defines the origin of the command that will select the SRW 01 working mode (Local/Remote) and its initial state. P220 – Local/Remote Selection...
  • Page 49 “control/signals” through the commands LC1, LC2 and LC3, via USB, or by the Ladder user program, through the system bit markers SX3001 … SX3003 (refer to the WLP manual). If P232 = 3, the Remote commands are controlled by the industrial network master (refer to the SRW 01 communication manuals).
  • Page 50 UC if either P229 or P232 = 1. When the Local or Remote commands are not being executed by the HMI (P229 or P232 ≠ 1), then E0031 is only presented on the HMI, it is not stored in the UC, and the error message is removed as soon as the communication is reestablished. 5-4 | SRW 01...
  • Page 51 P229 or P232 = 0, with the Three-Wire (pushbuttons) control logic, P230 = 1, as the factory setting is active with level 0 (NC), P231 = 0, making sure that the Control Unit (UC) stops the motor in case of broken wire. SRW 01 | 5-5...

  • Page 52: Digital Inputs And Outputs

    P278 – Digital Output O2 Function P279 – Digital Output O3 Function P280 – Digital Output O4 Function P281 – Digital Output O5 Function P282 – Digital Output O6 Function P283 – Digital Output O7 Function 5-6 | SRW 01...
  • Page 53 Option 7 to 26: are used to signal Trip for a specific protection; in case of Trip, the output is closed, remaining like this until the cause of the failure is not present anymore and the control is reset. SRW 01 | 5-7...
  • Page 54 Factory 0 to 63 Range: Setting: Proprieties: Description: It monitors the status of the Control Unit (UC) digital inputs. E.g.: P012 = 12 = 1100b. It means that the digital inputs I13 and I14 are actuated. 5-8 | SRW 01...
  • Page 55 Expansion Digital Unit (EDU) digital inputs through the parameter P086, and the status of the outputs informed through the parameter P087 remains 0 (zero). SRW 01 | 5-9...

  • Page 56: Operation Modes

    SRW 01, for the assembling of a motor starter. The Control Unit digital inputs and outputs can be monitored via Ladder/Fieldbus, even though they have specific pre-defined functions.
  • Page 57 If the Control Unit identifies an off control and keeps receiving the check back signal in the time defined on P209, an error will be generated and the control unit will send out a signal through the status led and message “E0079” on the HMI. SRW 01 | 5-11...

  • Page 58: Transparent Mode

    The digital inputs and outputs can be used according to the application needs and are configured. The digital inputs and outputs can be used according to the need of the application and are configured as per Table 5.5 on page 5-13. 5-12 | SRW 01...

  • Page 59: Connection Diagram - Transparent Mode

    In this operation mode the Control Unit (UC) presents operation characteristics similar to an Overload Relay, using one NO (normally open) digital output and another NC (normally closed). The other digital outputs can be used according to the user’s needs. SRW 01 | 5-13...

  • Page 60: Connection Diagram - Overload Relay

    O1 is reserved for operating the motor starting contactor (internal use). The other digital outputs can be used according to the user’s needs (free). In case of a Trip, the digital output O1 switches off the starting contactor, thus stopping the motor. 5-14 | SRW 01...

  • Page 61: Connection Diagram - Direct Starter

    (pushbuttons) (P230 = 1). R/L1 S/L2 T/L3 110...240 VAC/VDC 50/60Hz R/L1 SRW01-UC SRW01-CB SRW01-UMC Figure 5.4: Connection scheme for the Direct Starting operation mode using digital inputs at 24 Vdc and driven by pushbuttons (P230 = 1) SRW 01 | 5-15...

  • Page 62: Operation Diagram - Direct Starter

    In case of a Trip, the digital outputs O1 and O2 switch off the starting contactors, thus stopping the motor. For the Control Unit (UC) connection diagram presented in the Item 5.4.5.1 Connection Diagram - Reversing Starter on page 5-17, the digital inputs and outputs are configured according to the Table 5.8 on page 5-17. 5-16 | SRW 01...

  • Page 63: Connection Diagram - Reversing Starter

    Control Unit (UC) on the Reverter Starting operation mode with drive through digital inputs (P229 or P232 = 0) at 24 Vdc using three wires control logic (pushbuttons) (P230 = 1). SRW 01 | 5-17...

  • Page 64: Operation Diagram - Reversing Starter

    5.4.5.2 Operation Diagram – Reversing Starter Start Forward Start Reverse Stop Motor Transition Time P212 O1 - K1 O2 - K2 Trip Reset Check Back Imotor / Aux. I14 Figure 5.9: Operation diagram for the Reversing Starter operation mode 5-18 | SRW 01...

  • Page 65: Star-Delta Starter

    Usually, start-delta starting time P210 < 15 s. For long starting times (high inertia) it is needed to correct the sizing specifications of the components used in the starter, in other words, wiring, contactors, overload trip class (P640) etc. SRW 01 | 5-19...

  • Page 66: Connection Diagram - Star-Delta Starter

    (switch) control logic (P230 = 0) is shown on Figure 5.11 on page 5-20. 110...240 VAC/VDC 50/60 Hz R/L1 K2 K3 Figure 5.11: Detail modification for drive using digital inputs at 24 Vdc and switch drive (P230 = 0) 5-20 | SRW 01...

  • Page 67: Operation Diagram - Star-Delta Starter

    Start low speed Start low speed/stop pushbutton switch Check Back Free Free K1 - Low speed contactor operation K2 - High speed contactor operation K3 - High speed contactor operation Ladder (*) Adjust P208 according to the application. SRW 01 | 5-21...

  • Page 68: Connection Diagram - Dahlander Starter

    (switch) control logic (P230 = 0) is shown on Figure 5.14 on page 5-22. 110...240 VAC/VDC 50/60 Hz R/L1 Figure 5.14: Detail modification for drive using digital inputs at 24 Vdc and switch drive (P230 = 0) 5-22 | SRW 01...

  • Page 69: Operation Diagram - Dahlander Starter

    Start high speed/ stop pushbutton switch Start low speed Start low speed/stop pushbutton switch Check Back Free Free K2 - low speed contactor operation K1 - high speed contactor operation Ladder Ladder (*) Adjust P208 according to the application. SRW 01 | 5-23...

  • Page 70: Connection Diagram - Pole Changing Starter

    (switch) control logic (P230 = 0) is shown on Figure 5.17 on page 5-24. 110...240 VAC/VDC 50/60 Hz R/L1 K1 K2 Figure 5.17: Detail modification for drive using digital inputs at 24 Vdc and switch drive (P230 = 0) 5-24 | SRW 01...

  • Page 71: Operation Diagram - Pole Changing Starter

    In this operation mode the Control Unit (UC) does not use the UMC/UMCT, so only the PTC thermal protection (P644), the Earth Leakage (P631) protection and the External fault (P606) can be abled. In this mode the SRW 01 operates similarly to a PLC, allowing the user to develop its application using ladder language, through the WLP software.

  • Page 72: Connection Diagram - Plc

    Sys, CFG Description: It selects the Current Measurement Unit (UMC) or Current/Voltage Measurement Unit (UMCT) that will be connected to the SRW 01. For more information refer to the Section 3.5 CURRENT MEASUREMENT UNIT (UMC) CONNECTION on page 3-5 Section 3.6 CONNECTION OF THE CURRENT/VOLTAGE MEASUREMENT UNIT (UMCT) on page 3-6 of this manual.
  • Page 73 1 = Single-phase Proprieties: Sys, CFG Description: It selects the type of motor to be connected to the SRW 01. NOTE! The factory default protection settings depend on the type of motor, single-phase or three-phase, defined by the parameter P297.
  • Page 74 External CT ratio: 100:1, thus the external CT primary current is 100 A, P298 = 100 and the external CT secondary current is 1 A, P299 = 0. NOTE! The SRW 01 informs the average current, P003, and the percentage current, P002, without the need of any conversion. NOTE! The Control Unit (UC) signalizes through the status led in red and with the message “E0082”...

  • Page 75: Communication

    5.6 COMMUNICATION In order to exchange information via Ethernet communication network, the SRW 01 features two RJ45 ports with integral switch, wich enables the execution of different network topologies of the fieldbus technique. Below are listed the parameters related to the communication.

  • Page 76: Ethernet

    P763 - IP Address 3 P764 - IP Address 4 P765 - CIDR Subnet P766 - Gateway 1 P767 - Gateway 2 P768 - Gateway 3 P769 - Gateway 4 P800 to P819 - Read Words #1 to #20 5-30 | SRW 01...

  • Page 77: Protection Configuration Parameters

    NOTE! For further details regarding the configuration of the relay to operate in these protocols, refer to the SRW 01 Ethernet communication manual, available for download on the website: www.weg.net. 5.7 PROTECTION CONFIGURATION PARAMETERS The SRW 01 provides the following protections: Overload.

  • Page 78: Hysteresis

    Some protections are active only when the motor is On (flowing current), when the motor is Off, or after the start time. SRW 01 provides protection and monitoring functions according to the motor states presented in Table 5.13 on page 5-32.

  • Page 79: External Fault

    Monitoring can be done regardless of the state of the motor or only when it is in operation. P606 – External Fault Protection Adjustable Factory 0 = Disabled Range: Setting: 1 = Enabled Proprieties: Sys, rw Description: It enables or disables the external fault protection. SRW 01 | 5-33...
  • Page 80 It enables or disables the external fault protection timing. If the timing is enabled and the SRW 01 detects an external fault signal, then it initiates the external fault timer, and after reaching the time set in P609, it will execute the action programmed in P613, either turning off the motor or indicating an alarm.

  • Page 81: Current Imbalance Between Phases

    6 to 10 times in current imbalance, i.e., 5 % voltage imbalance corresponds to 30 to 50 % of current imbalance. max_deviation % of imbalance = 100 average_value Equation 02 - Current imbalance according to NEMA MG1 SRW 01 | 5-35...

  • Page 82: Earth Fault

    P617 – Earth Fault Adjustable 40 to 100 % Factory 50 % Range: Setting: Proprieties: Sys, rw Description: It defines the percentage of the earth fault current. 5-36 | SRW 01...

  • Page 83: Phase Loss (Current)

    The overcurrent protection has default values that work as the locked rotor protection, 400 % of the Motor Nominal Current 1 (P401), and for the operation modes Dahlander and Pole Changing also the motor nominal current 2 (P402), during 3 s. SRW 01 | 5-37...

  • Page 84: Undercurrent

    Parameter P627 = 1. „ Parameter P401 = 10 A. „ If the motor average current remains lower than 8 A during 3s, the SRW 01 relay switches off (Trip) the motor. P625 – Undercurrent Adjustable 5 to 100 % Padrão: 20 %...

  • Page 85: Frequency Out Of Range

    1 to 99 s = Enabled Setting: Proprieties: Sys, rw Description: It defines the allowed time with the frequency out of range before switching off the motor or indicating an alarm. If P629 = 0, the function remains disabled. SRW 01 | 5-39...

  • Page 86: Earth Leakage

    This effect is intrinsic of certain applications and, in most cases, temporary and lasts for a short time. The SRW 01 has a function that inhibits the relay trip during the start of the motor and the inhibition time of the trip can be configured by the user according to the configured application.

  • Page 87: Inhibition Of The Earth Leakage Protection At Starting

    5.7.9.2 Inhibition of the Earth Leakage Protection at Starting The SRW 01 also offers a function that inhibits the earth leakage protection during motor start (P635) for a set time (P636), as long as the earth leakage protection (P631) and trip inhibition at the start (P635) are abled The factory standard of function P635 is disabled and the user can able it through the same parameter.

  • Page 88: Trip Inhibition Function In Case Of Short Circuit

    P637, the SRW 01 will generate the alarm “E0077” to indicate that the earth leakage current is in short circuit condition and it will not allow the SRW 01 to trip unless the earth leakage current reduces to a value lower than 10 A.

  • Page 89: Verification Of The Earth Leakage Current Measuring

    Reset: value lower than 1.6 kΩ. „ The PTC protection presents the following alarms: Shorted PTC sensor: The SRW 01 switches off the motor and signalizes error on the status led and the message „ “E0034” on the HMI. Open PTC sensor: The SRW 01 switches off the motor and signalizes error on the status led and the message „...

  • Page 90: Overload

    5.7.11 Overload The SRW 01 has a rigid, effective and totally programmable motor thermal protection. In case of actuation, it indicates “E0005” – Overload, then the motor may be switched off or only an alarm be activated, according to the parameter P641.
  • Page 91 The motor thermal protection actuation curves are based on the IEC 60947-4-1 standard. The motor heating up and cooling down curves are based in many years of development of WEG motors. The thermal protection adopts the standard three-phase IP55 motor as a model and also takes into consideration if the motor is cooling while being driven or not being driven.
  • Page 92 The estimated motor temperature is stored in form of voltage on an RC circuit throughout the motor monitoring. Therefore, by turning off the SRW 01 the motor temperature is kept on the RC circuit, which in its turn simulates the motor cooling process. When the SRW 01 is energized again, the thermal image is updated from the RC circuit voltage, provided that P642 = 0.
  • Page 93 100 % (full load) 0.35 NOTE! When using a motor with PTC thermal sensors connected to the SRW 01, there is no need to enable the tripping classes, therefore, adjust P640 = 0. NOTE! In order to correctly program the tripping class that will protect the motor, it is essential to have available the motor locked rotor time.

  • Page 94: Service Factor

    It selects the service factor for the SRW 01 overload protection. Due to the IEC 947-4-1 standard, the SRW 01 defines 1.15 as the default S.F.. In order to identify the thermal protection actuation times for other S.F. it is only necessary to shift the “xIn” line proportionally to the left.

  • Page 95: Overload Parameterization

    (Figure 5.23 on page 5-46 in order to find the minimum tripping class necessary to start the cold motor, as described at the parameter 640. t(s) Cold F.S.=1 6 x motor In Figure 5.27: Cold start tripping class verification SRW 01 | 5-49...

  • Page 96: Tripping Class Programming Example

    The class 35 allows the warm starting of the motor and the protection in any condition. NOTE! The thermal protection adopts the standard three-phase IP55 Weg motor as a model, therefore, if the used motor is different do not program the tripping class at the maximum, but next to the minimum tripping class necessary for starting the motor.

  • Page 97: Reduction Of The Time From Cold To Warm Starting

    5 % under any circumstances. A voltage unbalance level of 5 % corresponds to 30 to 50 % of unbalance in the current. Consequently, the greater the voltage unbalance, the greater the increase in the motor current and temperature. Contact the motor manufacturer for the voltage unbalance tolerances. SRW 01 | 5-51...

  • Page 98: Phase Loss (Voltage)

    P652, the motor can be shut down or just an alarm can be activated, according to parameter P653. P652 – Phase Loss Time (Voltage) Adjustable 0 = Disable Factory Range: Setting: 1 to 99 s Enabled Proprieties: Sys, rw 5-52 | SRW 01...

  • Page 99: Overvoltage

    It defines the overvoltage time to shut down the motor or signal an alarm. If P655 = 0, the function is disabled. P656 – Overvoltage Protection Action Adjustable 0 = Alarm Factory Range: 1 = Switch Off (Trip) Setting: Proprieties: Sys, rw Description: It defines the overvoltage protection action. SRW 01 | 5-53...

  • Page 100: Undervoltage

    When the underpower level is below the limit adjusted in parameter P660 for the time defined in parameter P661, the motor can be shut down or just an alarm can be activated, according to parameter P662. 5-54 | SRW 01...

  • Page 101: Overpower

    0 = Disable Factory Range: Setting: 1 to 99 s Enabled Propriedades: Sys, rw Description: It defines the overvoltage time to shut down the motor or signal an alarm. If P664 = 0, the function is disabled. SRW 01 | 5-55...

  • Page 102: Power Under Factor

    Setting: Proprieties: Sys, rw Description: It defines the percentage of power under factor the motor. P667 – Power Under Factor Time Adjustable 0 = Disable Factory Range: 1 to 99 s Enabled Setting: Proprieties: Sys, rw 5-56 | SRW 01...

  • Page 103: Power Over Factor

    The power over factor protection is only available when the Current/Voltage Measurement Unit (UMCT) is used. And it will only be active after the motor start time has elapsed, as per relay trip class (P640). E.g. Trip class 10, after 10 s. SRW 01 | 5-57...

  • Page 104: Reset Button

    If the Reset button is pressed when the relay is in the Trip, alarm, error or fault state due to some fault on the motor or on the SRW 01, the SRW 01 must return to normal operation since the cause of the fault is not present anymore.

  • Page 105: Reset To The Factory Settings

    It ables or disables the trip test function through the reset button placed on the front of the control unit. 5.7.26 Reset to the Factory Settings In order to load the SRW 01 factory settings, the next procedure must be followed: 1. Remove the power supply from the SRW 01.

  • Page 106: Auto-Reset

    1 or 2 at P204 and cycle the power of the SRW 01. In order to reset real and reactive power meters, select the option 3 at P204 and cycle the power of the SRW 01. In order to reset the trip history, select P204 = 4, and cycle the power of the SRW 01.

  • Page 107: User Parameters

    If this parameter presents the option 2 “Incompatible Program”, it indicates that the version that has been loaded is not compatible with the current SRW 01 firmware. In this case it is necessary to recompile the project in the WLP, considering the new SRW 01 version, and to download it again. If this is not possible, can be done the upload of this applicative with the WLP.
  • Page 108 Parameterization 5-62 | SRW 01...

  • Page 109: Monitoring

    Monitoring 6 MONITORING 6.1 MONITORING PARAMETERS The SRW 01 performs the monitoring of the following variables: Parameter Description Range (address) P002 Current % IN 0 to 999 % P003 True RMS Current 0.0 to 6553.5 A P004 Average Voltage True RMS...
  • Page 110 Number of Phase Loss (Voltage) 0 to 65535 P102 Number of Overvoltage Trips 0 to 65535 P103 Number of Undervoltage Trips 0 to 65535 P104 Number of Underpower 0 to 65535 P105 Number of Overpower Trips 0 to 65535 6-2 | SRW 01...
  • Page 111 P110, P111, P115 and P116 are binary numbers where each bit represents a logical state. Their contents are shown in binary also on the HMI. NOTE! All the variables monitored by the SRW 01 can be accessed via HMI, WLP software and Fieldbus. P002 – % IN Current Adjustable...
  • Page 112 Description: This parameter allows monitoring the several states of the relay. E.g., P006 = 24 = 11000b. It means that the SRW 01 is in Remote mode and the motor is running (current is flowing). The error and/or Trip bits can be used on the user’s Ladder logic, on the Transparent and PLC operation modes for trip of the output in case some protections actuate.
  • Page 113 Factory 0 to 63 Range: Setting: Proprieties: Description: It monitors the status of the Control Unit (UC) digital inputs. Eg: P012 = 12 = 1100b. It means that the digital inputs I13 and I14 are actuated. SRW 01 | 6-5...
  • Page 114 Setting: Proprieties: Description: It informs the number of the last error occurred at the SRW 01. In order to understand the meaning of the error codes, refer to the Section 7.2 DIAGNOSIS VIA HMI on page 7-2 in this manual.
  • Page 115 Description: Indicates the setting value of the hexadecimal addressing switches. P030 – L1 Phase True RMS Current Adjustable Factory 0.0 to 6553.5 A Range: Setting: Proprieties: Description: It informs the motor L1 phase True RMS current. SRW 01 | 6-7...
  • Page 116 0 to 3334 % Factory Range: Setting: Proprieties: Description: It informs the percentage of earth leakage current in relation to the current level set on parameter P632, as long as the earth leakage protection is abled (P631 = 1). 6-8 | SRW 01...
  • Page 117 It indicates up to 999.9 kWh, returning to zero and increasing the meter MWh, parameter P045. This value is maintained even when the SRW 01 is powered down. It is possible to reset this meter by adjusting P204 = 3.
  • Page 118 It indicates up to 999.9 kVArh, returning to zero and increasing the meter MVArh, parameter P047. This value is maintained even when the SRW 01 is powered down. It is possible to reset this meter by adjusting P204 = 3.
  • Page 119 Range: Setting: Proprieties: Description: It informs the number of current imbalance trips. P063 – Number of Earth Fault Trips Adjustable 0 to 65535 Factory Range: Setting: Proprieties: Description: It informs the number of earth fault trips. SRW 01 | 6-11...
  • Page 120 Range: Setting: Proprieties: Description: It informs the number of PTC trips. P069 – Number of Earth Leakage Trips Adjustable 0 to 65535 Factory Range: Setting: Proprieties: Description: It informs the number of trips per earth leakage. 6-12 | SRW 01...
  • Page 121 = Phase Sequence Proprieties: Description: It indicates if any protection actuated with Trip. E.g.: P073 = 4 = 0100b. It means that the SRW 01 switched off (Trip) the motor due to the Trip test actuation. SRW 01 | 6-13...
  • Page 122 P078 – General Trip Status 2 Adjustable Factory 0 to 65535 Range: Setting: Proprieties: Description: It indicates if any protection actuated with Trip. It is the unification of the parameters P110 and P111. 6-14 | SRW 01...
  • Page 123 Factory 0 = None Range: 1 = Modbus-RTU Setting: 2 = DeviceNet 3 = Profibus DP 4 = Modbus-TCP 5 = Ethernet/IP 6 = ProfiNet IO Proprieties: Description: It presents the SRW 01 communication protocol type. SRW 01 | 6-15...
  • Page 124 It informs the number of voltage unbalance trips by voltage unbalance. P101 – Number of Phase Loss (Voltage) Trips Adjustable 0 to 65535 Factory Range: Setting: Proprieties: Description: It informs the number of phase loss (voltage) trips. 6-16 | SRW 01...
  • Page 125 Setting: Proprieties: Description: It informs the number of overpower trips. P106 – Number of Power Under Factor Trips Adjustable 0 to 65535 Factory Range: Setting: Proprieties: Description: It informs the number of power under factor trips. SRW 01 | 6-17...
  • Page 126 Description: It indicates if some protection went off with trip. E.g.: P110 = 8 = 1000b. It means that the SRW 01 shuts down the motor (Trip) due to the actuation of the undervoltage protection. P111 – Status of Trip 5 (binary)
  • Page 127 It indicates if some protection went off, but without tripping the motor, only alarm. E.g.: P116 = 8 = 1000b. It means that the power over factor protection went off, but since it is configured as alarm, the motor is not shut down. SRW 01 | 6-19...
  • Page 128 Monitoring 6-20 | SRW 01...

  • Page 129: Diagnosis

    Diagnosis 7 DIAGNOSIS The error, alarm, trip and fault diagnoses of the Control Unit (UC) can be done through the three SRW 01 status leds or via HMI messages. The following flashing messages are presented on the HMI display: Alarm message: Indication “ALAr”.

  • Page 130: Diagnosis Via Hmi

    (*) HMI local error is not registered in the SRW01-UC if P220 or P232 ≠ 1. (**) It signals error if the motor is OFF and does not allow driving it. If the motor is on, it signals alarm. 7-2 | SRW 01...

  • Page 131: Histórico De Desarmes

    Diagnosis 7.3 HISTÓRICO DE DESARMES The SRW 01 records the last five trips (Trip or error) together with other relevant information to interpret the trip, such as: Error code. „ Phase current L1. „ Phase current L2. „ Phase current L3.
  • Page 132 P182 – Phase L2 Current Fifth Error Adjustable 0.0 to 6553.5 A Factory Range: Setting: Proprieties: Description: Record of the current on phase L2 at the moment of the events from the last to the fifth trip. 7-4 | SRW 01...
  • Page 133 Record of the True RMS earth leakage current measured by the earth leakage sensor (provided that the earth leakage protection is enabled - P631 = 1) in the events from the last to the fifth trip. SRW 01 | 7-5...
  • Page 134 P188 – L2-L3 Voltage Fifth Error Adjustable Factory 0 to 1000 V Range: Setting: Proprieties: Description: Record of the True RMS voltage between phases L2 and L3 at the moment of the events from the last to the fifth trip. 7-6 | SRW 01...
  • Page 135 P191 – Defined by User 2 Fifth Error Adjustable Factory 0 to 65535 Range: Setting: Proprieties: Description: Record of the content of the parameter selected in P119 at the moment of the events from the last to the fifth trip. SRW 01 | 7-7...
  • Page 136 Diagnosis NOTE! In case a trip occurs simultaneously to the power-up of the relay, the records referring to this trip, such as logical status, currents, etc., may contain invalid information. 7-8 | SRW 01...

  • Page 137: Technical Characteristics

    - Stranded with/without wire end ferrules: 1 x (0.2 ... 2.5 mm ) 1 x (26 ... 12 AWG) Screws: M3 „ Reset button Error or fault reset – system „ Trip or alarm reset – protections „ Trip Test „ SRW 01 | 8-1...
  • Page 138 Conductor cross section: „ - Stripped solid wire: 1 x (0.2 ... 2.5 mm ); 1 x (26 ... 12 AWG) - Stranded with/without wire end ferrules: 1 x (0.2 ... 2.5 mm Screws: M3 „ 8-2 | SRW 01...

  • Page 139: Mechanical Data

    Data is subject to change without notice. (*) Considering the consumption of the Control Unit (UC) and of the Current Measurement Unit (UMC). 8.1 MECHANICAL DATA 58 (2.28) 36.5 (1.44) 50 (1.97) Figure 8.1: HMI dimensions – mm (in) SRW 01 | 8-3...
  • Page 140 127 (4.99) Figure 8.2: HMI dimensions – mm (in) 11 (0.43) 45 (1.77) 54.3 (2.14) 3.7 (0.14) 59.3 (2.33) Figure 8.3: Dimensions of the Current Measurement Unit - UMC 1, 2 and 3 – mm (in) 8-4 | SRW 01...
  • Page 141 Figure 8.4: Dimensions of the Current Measurement Unit - UMC 4 – mm (in) 45 (1.77) 45 (1.77) 25 (0.98) 49.5 (1.95) 40 (1.57) 76.3 (3) 152 (5.98) 120 (4.72) 45 (1.77) Figure 8.5: Dimensions of the Current Measurement Unit - UMC 5 – mm (in) SRW 01 | 8-5...
  • Page 142 265 (10.43) 90 (3.54) 167 (6.57) 81 (3.19) 81 (3.19) ∅ 32 (1.26) ∅ 8 (0.31) 45 (1.77) 69 (2.72) Figure 8.7: Dimensions of the Current Measurement Unit - UMC 6 – without busbar – mm (in) 8-6 | SRW 01...
  • Page 143 40 (1.6) 210 (8.3) 304 (11.9) 290 (11.4) 150 (5.9) 110 (4.3) 33 (1.3) 90 (3.5) (*) With metallic support at the base. Figure 8.9: Dimensions mm (in) of the EL2, EL3 and EL4 earth leakage sensors SRW 01 | 8-7...
  • Page 144 Figure 8.10: Dimensions of the Expansion Digital Unit – EDU – mm (in) 11 (0.43) 45 (1.77) 3,7 (0.14) 54.3 (2.14) 78 (3.07) 82 (3.22) Figure 8.11: Dimensions of the Current/Voltage Measurement Unit - UMCT 1, 2 and 3 – mm (in) 8-8 | SRW 01...
  • Page 145 45 (1.77) 45 (1.77) 25 (0.98) 49.5 (1.95 40 (1.57) 76.5 (3.01) 120 (4.72) 167 (6.57) 171 (6.73) Ø 8 (0.31) 45 (1.77) Figure 8.13: Dimensions of the Current/Voltage Measurement Unit - UMCT 5 – mm (in) SRW 01 | 8-9...
  • Page 146 91 (3.58) 181.90 (7.16) 81 (3.19) 81 (3.19) Ø 34 (1.33) 185.5 (7.30) Ø 8 (0.31) 45 (1.77) 70 (2.75) Figure 8.15: Dimensions of the Current/Voltage Measurement Unit - UMCT 6 – with busbar – mm (in) 8-10 | SRW 01...
  • Page 147 Technical Characteristics 98 (3.86) (0.63) 101 (3.98) (0.71) 91.1 (3.59) Figure 8.16: HMI2 dimensions – mm (in) SRW 01 | 8-11...
  • Page 148 Technical Characteristics 8-12 | SRW 01...

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