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WEG SRW 01 Addendum
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WEG SRW 01 Addendum

WEG SRW 01 Addendum

Smart relay
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Motors | Energy | Automation | Coatings
Smart Relay
SRW 01
Addendum to User Manual V1.3X
Language: English
Document: 10000590245 / 00

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Summary of Contents for WEG SRW 01

  • Page 1 Motors | Energy | Automation | Coatings Smart Relay SRW 01 Addendum to User Manual V1.3X Language: English Document: 10000590245 / 00...
  • Page 3 Addendum to User Manual V1.3X Series: SRW 01 Language: English Document Number: 10000590245 / 00 Firmware Version: V2.0X Publication Date: 08/2009...

  • Page 5: Table Of Contents

    3 GENERAL INFORMATION ................17 3.1 TERMS AND DEFINITIONS USED IN THE MANUAL ................17 3.2 ABOUT SRW 01............................17 3.3 SRW 01 IDENTIFICATION LABEL ......................18 4 INSTALLATION AND CONNECTION............. 19 4.1 ELECTRICAL INSTALLATION........................19 4.2 CURRENT MEASUREMENT UNIT (UMC) CONNECTION ................ 20 4.3 CONNECTION OF THE EARTH LEAKAGE SENSOR (ELS) ..............
  • Page 6 Addendum to User Manual V1.3X 6.7.1 External Fault ............................. 52 6.7.2 PTC Thermal Protection........................53 6.7.3 RESET Button............................. 54 6.7.3.1 Reset............................54 6.7.3.2 Trip Test ..........................55 6.7.4 Earth Leakage ............................ 56 6.7.4.1 Earth Leakage protection operation ................... 57 6.7.4.2 Inhibition of the Earth Leakage Protection at Starting............58 6.7.4.3 Trip Inhibition Function in Case of Short Circuit..............

  • Page 7: Introduction

    It complements manual 0899.5838 P/03 version 1.3X that accompanies the product with the new 2.0X version incorporated. The 2.0X software version of the SRW 01 Smart Relay has some differences in the operation in relation to the previous 1.3X version: ■...
  • Page 8 Addendum to User Manual V1.3X 8 | SRW 01...

  • Page 9: Quick Reference Of The Parameters

    SRW01-RCD. The parameters in white are of common use among the versions with PTC and Earth Leakage protection. For further information about product identification, consult item 3.3 of this addendum or the catalog provided in electronic format on the CD-ROM that accompanies the product or access the WEG site - www.weg.net. User Parameter...
  • Page 10 1 = Reset of the Motor Running Time 2 = It resets the Protection counters and the Number of Starts counter 3 = No Function 4 = No Function 5 = Reset to the Factory Settings 10 | SRW 01...
  • Page 11 P279 Digital Output O3 Function 0 = Internal Use 1 = Ladder Sys, CFG (P202) 1 = Ladder 2 = Fieldbus 3 = Alarm/Fault Signal (NO) 4 = Trip/Error Signal (NO) 5 = Trip/Error Signal (NC) SRW 01 | 11...
  • Page 12 1 = Front Button Sys, rw P601 Reset 1 = Front Button 2 = RESET key (HMI) 3 = Digital Input I3 4 = Digital Input I4 P602 Function Test/Reset Button 0 = Disabled Sys, rw 1 = Enabled 12 | SRW 01...
  • Page 13 Sys, rw 1 = Enabled P636 Earth Leakage Start up Time Inhibit 1 to 600 s Sys, rw P637 Earth Leakage Short circuit Trip 0 = Disabled 0 = Disabled Sys, rw Inhibit 1 = Enabled SRW 01 | 13...
  • Page 14 Sys, rw P734 Number of Words from the Master 1 to 2 Sys, rw to the Slave P735 Control Word # 1 0 to 65535 P736 Parameter Received at Word # 2 0 to 999 Sys, rw 14 | SRW 01...
  • Page 15 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. SRW 01 | 15...
  • Page 16 Addendum to User Manual V1.3X 16 | SRW 01...

  • Page 17: General Information

    (Residual Current Device). FLA: Set Current at Full Load (Full Load Amps). ABOUT SRW 01 It was added one more component to the SRW 01: (g) Earth Leakage sensors - SRW01-ELS 1 – SRW 01-EL1 2 –...

  • Page 18: Srw 01 Identification Label

    Addendum to User Manual V1.3X SRW 01 IDENTIFICATION LABEL 1 – Product model 2 – WEG part number 3 – Serial number 4 – Manufacturing date 5 – Maximum ambient temperature 6 – Firmware version 7 – UC supply voltage (voltage and frequency) 8 –...

  • Page 19: Installation And Connection

    Inputs S1 and S2 – PTC or Earth Leakage Sensor; ■ Digital inputs – I1, I2, I3 and I4; ■ 24 Vdc output for the 24 Vdc digital inputs or common for the 110 Vac digital inputs – IC; ■ Power supply terminal A1. SRW 01 | 19...

  • Page 20: Current Measurement Unit (Umc) Connection

    Digital outputs – O1, O2, O3 and O4. The outputs O1 and O2 share the common terminal C1. ATTENTION! The incorrect application or installation of the SRW 01 may result in damage to its components, faults or reduction of the useful life of the product due to wiring or application errors, as well as the incorrect setting...

  • Page 21: Connection Of The Earth Leakage Sensor (Els)

    The EL2 (Ø 70 mm), EL3 (Ø 120 mm) and EL4 (Ø 210 mm) sensors can only be assembled using screws. The EL2 and EL3 sensors are fixed by M3 screws and the EL4 sensor is fixed by M6 screws. SRW 01 | 21...

  • Page 22: Short Circuit Ranges (Ul)

    If the measured earth leakage current is inferior to 50 mA, the value 0 (zero) will be indicated on parameters P036 and P037. NOTE! Earth leakage protection is available only on version SRW 01-RCD. Check if the acquired Control Unit model has this functionality. SHORT CIRCUIT RANGES (UL) The SRW01-UC and SRW01-UMC devices (UL Certificates), are appropriate to use in circuits with capacity to produce the symmetrical effective current (RMS) below 200.000 A with maximum voltage of 600 V.

  • Page 23: Human-Machine Interface (Hmi)

    2 - Data Download: From the HMI to the 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 not have different hardware nor firmware versions. Check the nameplate to verify the version of the product.
  • Page 24 Addendum to User Manual V1.3X 24 | SRW 01...

  • Page 25: Parameterization

    ■ PTC protection available only on version SRW 01-PTC. ■ Earth leakage protection is available only on version SRW 01-RCD. ■ Check the nameplate or the warning tag on the product to know which model of the control unit was acquired.

  • Page 26: Local Command

    If P229 = 0 is selected, once defining that the local controls are controlled by the digital inputs, it is possible to select the type of control by: ■ Two wires (Switch); ■ Three wires (Pushbutton). 26 | SRW 01...

  • Page 27: Digital Inputs And Outputs

    DIGITAL INPUTS AND OUTPUTS The SRW 01 presents 4 digital inputs that can be activated with a 24 Vdc or 110 Vac (according to the acquired model) voltage. It has an internal isolated 24 Vdc power supply exclusively for the operation of the digital inputs. The installation diagram is presented in the section 3.8 of the SRW 01 User Manual V1.3X.
  • Page 28 (UC) will signalize through the Status LED and via the message “E0024” on the HMI. 28 | SRW 01...
  • Page 29 2 = O3 bit 3 = O4 Proprieties: RO Description: It monitors the status of the digital outputs Ox. E.g.: P013 = 12 = 1100b. It means that the digital outputs O3 and O4 are activated. SRW 01 | 29...

  • Page 30: Srw 01 Check Back

    Parameters P208, P209 and P211 configure the check back of the SRW 01 for each operation mode which assures that the motor was really driven and checking if it keeps this way until a stop control is identified or assuring that the motor keeps at standstill until a start control is identified.
  • Page 31 The following diagram exemplifies the operation of the check back signal verification: ■ Check Back start control; ■ Check Back stop control; ■ Check Back standstill; ■ Check Back operation. Figure 6.1: Diagram of operation of the Check Back signal verification SRW 01 | 31...

  • Page 32: Operation Modes

    Connection Diagram – Transparent Mode The scheme on figure 6.2 shows an example of the use of the SRW 01 on the Transparent operation mode with drive through the digital inputs at 24 Vdc, where on the Ladder programming digital input I1 turns the motor ON/OFF, digital input I2 is used as a Check Back signal and digital output O1 drives the motor.

  • Page 33: Overload Relay

    6.4.2 Overload Relay In this operation mode the SRW 01 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.

  • Page 34: Connection Diagram - Overload Relay

    Connection Diagram – Overload Relay The scheme on figure 6.4 shows an example of the use of the SRW 01 on the Overload Relay operation mode where the digital inputs I1 to I4 driven at 24 Vdc and the digital outputs O3 and O4 can be used according to the user’s needs.

  • Page 35: Direct Starter

    Connection Diagram – Direct Starter The scheme on figure 6.6 shows an example of the use of the SRW 01 on the Direct Starting operation mode with drive through the digital inputs (P229 = 0) at 24 Vdc using control logic of control with three wires (pushbuttons) (P230 = 1).
  • Page 36 Figure 6.7 (a): Detail modification for drive using digital inputs at 110 Vac and driven by pushbuttons (P230 = 1) (b): Detail modification for drive using digital inputs at 24 Vdc and (c): Digital inputs at 110 Vac both with switch drive (P230 = 0) 36 | SRW 01...

  • Page 37: Operation Diagram - Direct Starter

    By means of a stop control followed by a reverter control; ■ By means of a reverter control without the need of the stop control. This way, the reverter control will only be set after the time defined on parameter P212. SRW 01 | 37...

  • Page 38: Connection Diagram - Reversing Starter

    Connection Diagram – Reversing Starter The scheme on figure 6.9 shows an example of the use of the SRW 01 on the Reverter Starting operation mode with drive through digital inputs (P229 = 0) at 24 Vdc using three wires control logic (pushbuttons) (P230 = 1).

  • Page 39: Operation Diagram - Reversing Starter

    The digital outputs O4 can be used according to the user’s needs. In case of a TRIP, the digital outputs O1, O2 and O3 switch off the starting contactors, thus stopping the motor. Digital inputs and outputs are configured as per table 6.6. SRW 01 | 39...

  • Page 40: Connection Diagram - Star-Delta Starter

    Connection Diagram – Star-Delta Starter The scheme on figure 6.12 shows an example of the use of the SRW 01 on the Star-Delta Starting operation mode with drive through digital inputs (P229 = 0) at 24 Vdc using three wires (pushbuttons) control logic (P230 = 1).
  • Page 41 Figure 6.13 (a): Detail modification for drive using digital inputs at 110 Vac and driven by pushbuttons (P230 = 1) (b): Detail modification for drive using digital inputs at 24 Vdc and (c): Digital inputs at 110 Vac both with switch drive (P230 = 0) SRW 01 | 41...

  • Page 42: Operation Diagram - Star-Delta Starter

    O4 can be used according to the user’s needs. In case of a TRIP, the digital outputs O1, O2 and O3 switch off the starting contactors, thus stopping the motor. Digital inputs and outputs are configured as per table 6.7. 42 | SRW 01...

  • Page 43: Connection Diagram - Dahlander Starter

    Connection Diagram – Dahlander Starter The scheme on Figure 6.15 shows an example of the use of the SRW 01 on the Dahlander Starting operation mode with drive through digital inputs (P229 = 0) at 24 Vdc using three wires (pushbuttons) control logic (P230 = 1).
  • Page 44 Figure 6.16 (a): Detail modification for drive using digital inputs at 110 Vac and driven by pushbuttons (P230 = 1) (b): Detail modification for drive using digital inputs at 24 Vdc and (c): Digital inputs at 110 Vac both with switch drive (P230 = 0) 44 | SRW 01...

  • Page 45: Operation Diagram - Dahlander Starter

    Start High Speed/ Stop Pushbutton Switch Start Low Speed Start Low Speed/Stop Pushbutton Switch (**) Check Back K2 - Low Speed Contactor Operation K1 - High Speed Contactor Operation Ladder Ladder (*) Adjust P208 according to the application. SRW 01 | 45...

  • Page 46: Connection Diagram - Pole Changing Starter

    Connection Diagram – Pole Changing Starter The connection scheme on figure 6.18 shows an example of the use of the SRW 01 on the Two Winding Starting operation mode with drive through digital inputs (P229 = 0) at 24 Vdc using three wires (pushbuttons) control logic (P230 = 1).

  • Page 47: Operation Diagram - Pole Changing Starter

    PLC Mode In this operation mode the SRW 01 does not use the UMC, so only the PTC thermal protection (P644) can be abled for the SRW01-PTC and the Earth Leakage (P631) protection for the SRW01-RCD. 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 48: Connection Diagram - Plc

    Earth Leakage (SRW01-RCD). 6.4.8.1 Connection Diagram – PLC The scheme on figure 6.21 shows an example of the use of the SRW 01 on the PLC operation mode with drive through digital inputs at 24 Vdc. 48 | SRW 01...

  • Page 49: Motor Configuration

    The modification of the scheme for the control unit with digital inputs at 110 Vac is shown on figure 6.22. Figure 6.22: Detail modification for drive using digital inputs at 110 Vac MOTOR CONFIGURATION In order to achieve an efficient motor protection, it is necessary to configure the parameters correctly according to the motor data. SRW 01 | 49...

  • Page 50: Communication Network Configuration

    6 = UMC6 (84 – 840 A) Proprieties: Sys, CFG Description: It selects the Current Measurement Unit (UMC) that will be connected to the SRW 01. For more information refer to the section 4.2 of this addendum. NOTE! The Control Unit sends out a signal through the STATUS Led (Red) and message "E0082" on the HMI if the rated current of the motor (P401/P402) is out of the current measuring unit range.

  • Page 51: Protection Configuration Parameters

    P785 – Value of the Reading Programmable Parameter #6 In order to get more information, refer to the Modbus-RTU Communication Manual, supplied in electronic format on the CD-ROM that comes with the product, or obtained from the WEG website – www.weg.net . PROTECTION CONFIGURATION PARAMETERS The SRW 01 provides the following protections: ■...

  • Page 52: External Fault

    Factory 3 Range: 1 = Digital Input I2 Setting: 2 = Digital Input I3 3 = Digital Input I4 Proprieties: Sys, rw Description: It defines which the digital input that corresponds to the external Fault signal is. 52 | SRW 01...

  • Page 53: Ptc Thermal Protection

    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 “E0035” on the HMI. P644 – PTC Protection...

  • Page 54: 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 55: Trip Test

    3 = Digital Input I3 4 = Digital Input I4 Proprieties: Sys, rw Description: It selects the origin of the SRW 01 reset command. NOTE! The reset can be performed via Ladder or Fieldbus for any P601 adjustment. Trip Test 6.7.3.2...

  • Page 56: Earth Leakage

    The SRW 01-RCD has the protection function against earth leakage currents when used with the earth leakage sensors (ELS). The protection action can be configured for alarm or trip. The sensors must be assembled separately from the relay and placed at a maximum distance of ten meters from it.

  • Page 57: Earth Leakage Protection Operation

    This effect is intrinsic of certain applications and, in most cases, temporary and lasts for a short time. The SRW 01-RCD 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 58: Inhibition Of The Earth Leakage Protection At Starting

    Inhibition of the Earth Leakage Protection at Starting The SRW 01-RCD 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 59: Trip Inhibition Function In Case Of Short Circuit

    P637, the SRW 01-RCD 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 60: Verification Of The Earth Leakage Current Measuring

    ( I ) and the current informed on parameter P037: − × erro Current I must satisfy the following condition: ≤ ≤ Alternate supply source. Figure 6.23: Connection scheme for circuit test of earth leakage current Measuring 60 | SRW 01...

  • Page 61: Monitoring Parameters

    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 that the motor is running. 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 62 It informs the output value of the thermal model in a scale from 0 to 250% used on the overload protection of the SRW 01, being that 250 is the actuation point of the thermal protection of the motor. The value indicated on this parameter depends on the operation condition of the motor and how much time it is found on this condition, for example: Standstill, start and at full rating.
  • Page 63 Proprieties: RO Description: It indicates if any protection actuated with Trip. Ex: P073 = 4 = 0100b. It means that the SRW 01 switched off (TRIP) the motor due to the Trip test actuation. P077 – Alarm Status 3 (binary) Adjustable...
  • Page 64 Addendum to User Manual V1.3X P081 – General Alarm Status Adjustable 0 to 65535 Factory - Range: Setting: Proprieties: RO Description: It indicates if any protection actuated indicating only an alarm, without switching off the motor. 64 | SRW 01...

  • Page 65: Diagnosis

    Addendum to User Manual V1.3X 8 DIAGNOSIS The error, alarm, trip and fault diagnoses can be done through the three SRW 01 status LEDs or via HMI messages. DIAGNOSIS VIA LEDs Table 8.1: SRW 01 Status via LEDs Signalization Description...
  • Page 66 Addendum to User Manual V1.3X 66 | SRW 01...

  • Page 67: Technical Characteristics

    DC-13 (IEC 60947-5-1): 0,22 Adc / 125 Vdc 0,1 Adc / 250 Vdc ■ 5 A, 30 Vdc / 250 Vac CONTACT CAPACITY (RESISTIVE LOAD) EXTERNAL PROTECTION AGAINST ■ 6 A gl/gG fuse SHORT-CIRCUIT ■ MECHANICAL LIFE 1.000.000 cycles SRW 01 | 67...

  • Page 68: Mechanical Data

    TERMINAL STRIPS - Stranded with/without wire end ferrules: 1 x (0.2 ... 1.5 mm ); 1 x (22 ... 14 AWG) ■ Screws: M3 MECHANICAL DATA Figure 9.1: Dimensions mm (in) of the EL1 Earth Leakage Sensor 68 | SRW 01...
  • Page 69 Addendum to User Manual V1.3X (*) with metallic support at the base. Figure 9.2: Dimensions mm (in) of the EL2, EL3 and EL4 Earth Leakage Sensors SRW 01 | 69...

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Srw 01-el1Srw 01-el2Srw 01-el3Srw 01-el4