WEG SRW 01 User Manual

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Smart Relay

SRW 01 (Ethernet)

Motors | Automation | Energy | Transmission & Distribution | Coatings

User's Manual

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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 R00 First edition

V2.0X R01 General review

Page 5

Contents

QUICK REFERENCE OF THE PARAMETERS .......................................... 0-1

1 SAFETY INSTRUCTIONS ....................................................................... 1-1

1.1 SAFETY WARNINGS IN THE MANUAL ............................................................... 1-1

1.2 PRELIMINARY RECOMMENDATIONS ...............................................................1-1

2 GENERAL INFORMATION ...................................................................... 2-1

2.1 ABOUT THE MANUAL..........................................................................................2-1

2.2 TERMS AND DEFINITIONS USED IN THE MANUAL ......................................... 2-1

2.3 ABOUT THE SRW 01 ............................................................................................ 2-3

2.4 SRW 01 IDENTIFICATION LABEL ....................................................................... 2-6

2.5 HOW TO SPECIFY THE SRW 01 MODEL ........................................................... 2-6

2.6 RECEIVING AND STORAGE ................................................................................ 2-6

2.7 POWER FACTOR .................................................................................................. 2-7

3 INSTALLATION AND CONNECTION ...................................................... 3-1

3.1 MECHANICAL INSTALLATION ............................................................................ 3-1

3.1.1 Environmental Conditions ..........................................................................3-1

3.1.2 Mounting ...................................................................................................... 3-1

3.2 ELECTRICAL INSTALLATION .............................................................................. 3-3

3.3 RELAY POWER SUPPLY ...................................................................................... 3-4

3.4 POWER CABLES .................................................................................................. 3-4

3.5 CURRENT MEASUREMENT UNIT (UMC) CONNECTION ................................. 3-5

3.6 CONNECTION OF THE CURRENT/VOLTAGE MEASUREMENT UNIT (UMCT) 3-6

3.7 EXTERNAL CURRENT TRANSFORMER (CT) USE ............................................ 3-7

3.8 USB CONNECTION .............................................................................................. 3-7

3.9 CONNECTION OF THE CONTROL UNIT (UC) DIGITAL INPUTS ...................... 3-8

3.9.1 Identiﬁcation of the Digital Inputs Types (UC) .......................................... 3-8

3.9.2 Connection of an External Power Supply for the Digital Inputs

(24 Vdc) ..................................................................................................................3-8

3.10 CONNECTION OF THE CONTROL UNIT (UC) DIGITAL OUTPUTS ................ 3-9

3.11 EXPANSION DIGITAL UNIT (EDU) CONNECTION ...........................................3-9

3.12 CONNECTION OF THE EXPANSION DIGITAL UNIT (EDU) DIGITAL

INPUTS ......................................................................................................................3-10

3.13 CONNECTION OF THE EXPANSION DIGITAL UNIT (EDU) DIGITAL

OUTPUTS .................................................................................................................. 3-11

3.14 CONNECTION OF THE EARTH LEAKAGE SENSOR (ELS) ...........................3-11

3.15 SHORT CIRCUIT RANGES (UL) .......................................................................3-12

4 HUMAN-MACHINE INTERFACE (HMI) .................................................. 4-1

4.1 KEYS .....................................................................................................................4-2

4.2 HMI LOCAL MESSAGES .....................................................................................4-2

4.3 PARAMETERIZATION ..........................................................................................4-2

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

Contents

5 PARAMETERIZATION ............................................................................. 5-1

5.1 LOCAL/REMOTO..................................................................................................5-2

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 – Overload Relay .........................................5-14

5.4.4 Direct Starter .............................................................................................5-14

5.4.4.1 Connection Diagram – Direct Starter ............................................5-15

5.4.4.2 Operation Diagram – Direct Starter ............................................... 5-16

5.4.5 Reversing Starter ......................................................................................5-16

5.4.5.1 Connection Diagram – Reversing Starter .....................................5-17

5.4.5.2 Operation Diagram – Reversing Starter ........................................ 5-18

5.4.6 Star-Delta Starter ...................................................................................... 5-19

5.4.6.1 Connection Diagram – Star-Delta Starter .....................................5-20

5.4.6.2 Operation Diagram – Star-Delta Starter ........................................5-21

5.4.7 Dahlander Starter ...................................................................................... 5-21

5.4.7.1 Connection Diagram – Dahlander Starter ..................................... 5-22

5.4.7.2 Operation Diagram – Dahlander Starter ........................................5-23

5.4.8 Pole Changing Starter ..............................................................................5-23

5.4.8.1 Connection Diagram – Pole Changing Starter ..............................5-24

5.4.8.2 Operation Diagram – Pole Changing Starter ...............................5-25

5.4.9 PLC Mode ..................................................................................................5-25

5.4.9.1 Connection Diagram – PLC ............................................................5-26

5.5 MOTOR CONFIGURATION ................................................................................ 5-26

5.6 COMMUNICATION ............................................................................................. 5-29

5.6.1 Ethernet .....................................................................................................5-30

5.7 PROTECTION CONFIGURATION PARAMETERS ............................................5-31

5.7.1 Hysteresis ..................................................................................................5-32

5.7.2 External Fault .............................................................................................5-33

5.7.3 Current Imbalance between Phases .......................................................5-35

5.7.4 Earth Fault ..................................................................................................5-36

5.7.5 Phase Loss (Current) ................................................................................5-37

5.7.6 Overcurrent ................................................................................................ 5-37

5.7.7 Undercurrent ..............................................................................................5-38

5.7.8 Frequency Out of Range ........................................................................... 5-39

5.7.9 Earth Leakage ...........................................................................................5-40

5.7.9.1 Earth Leakage Protection Operation ............................................. 5-40

5.7.9.2 Inhibition of the Earth Leakage Protection at Starting ................5-41

5.7.9.3 Trip Inhibition Function in Case of Short Circuit ..........................5-42

5.7.9.4 Veriﬁcation of the Earth Leakage Current Measuring ................. 5-43

5.7.10 PTC Thermal Protection .........................................................................5-43

5.7.11 Overload ................................................................................................... 5-44

5.7.12 Service Factor .........................................................................................5-48

5.7.13 Cooling Time ............................................................................................5-48

5.7.14 Overload Parameterization ....................................................................5-49

5.7.14.1 Tripping Class Programming Suggestion ...................................5-49

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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 ...........................................................................................5-54

5.7.21 Underpower ............................................................................................. 5-54

5.7.22 Overpower ...............................................................................................5-55

5.7.23 Power Under Factor ................................................................................ 5-56

5.7.24 Power Over Factor .................................................................................. 5-57

5.7.25 Reset Button ............................................................................................ 5-58

5.7.25.1 Reset ...............................................................................................5-58

5.7.25.2 Trip Test .......................................................................................... 5-58

5.7.26 Reset to the Factory Settings ................................................................5-59

5.7.27 Auto-Reset ............................................................................................... 5-60

5.7.28 Ladder Program Execution ....................................................................5-60

5.7.29 User Parameters .....................................................................................5-61

6 MONITORING ......................................................................................... 6-1

6.1 MONITORING PARAMETERS ............................................................................. 6-1

7 DIAGNOSIS ............................................................................................. 7-1

7.1 DIAGNOSIS VIA LEDS ..........................................................................................7-1

7.2 DIAGNOSIS VIA HMI ............................................................................................ 7-2

7.3 HISTÓRICO DE DESARMES ................................................................................7-3

8 TECHNICAL CHARACTERISTICS ......................................................... 8-1

8.1 MECHANICAL DATA ............................................................................................8-3

Page 8

Contents

Page 9

Quick Reference of Parameters

QUICK REFERENCE OF THE PARAMETERS

Parameter Description Adjustable Range

P000 Access to the Parameters 0 to 9999 0 rw 4-4 P001 Scan Cycle Time 0.0 to 6553.5 ms - RO 5-60 P002 IN % Current 0 to 999 % - RO 6-3 P003 True RMS Current 0.0 to 6553.5 A - RO 6-3 P004 Average Voltage True RMS 0 to 1000 V - RO 6-3 P005 Line Frequency 0.0 to 99.9 Hz - RO 6-4 P006 Relay Status (binary) bit0 = Error

P007 Relay Status 2 (binary) bit0 = HMI 0 key

P008 Power Factor 0.00 to 1.00 - RO 6-5 P009 Motor Reactive Power 0.0 to 6553.5 kVAr - RO 6-5 P010 Motor Active Power 0.0 to 6553.5 kW - RO 6-5 P011 Motor Apparent Power 0.0 to 6553.5 kVA - RO 6-5 P012 Digital Inputs I11 to I16 Status

(decimal)

P013 Digital Outputs O1 to O4 Status

(binary)

P014 Last Error 0 to 200 - RO 6-6 P015 Second Error 0 to 200 - RO 6-6 P016 Current Error 0 to 200 - RO 6-6 P020 PTC Value (ohms) 0 to 10000 Ω - RO 6-6 P023 Firmware Version (UC) 0.00 to 655.35 - RO 6-7 P024 Type of Protection (UC) 0 = PTC

P026 Firmware Version (UMC/UMCT) 0.00 to 655.35 - RO 6-7 P027 Firmware Version (EDU) 0.00 to 655.35 - RO 6-7 P029 Value of Addressing Switches 0000h to 00FFh - RO 6-7 P030 L1 Phase True RMS Current 0.0 to 6553.5 A - RO 6-7 P031 L2 Phase True RMS Current 0.0 to 6553.5 A - RO 6-8 P032 L3 Phase True RMS Current 0.0 to 6553.5 A - RO 6-8 P033 Line Voltage L1-L2 0 to 1000 V - RO 6-8 P034 Line Voltage L2-L3 0 to 1000 V - RO 6-8 P035 Line Voltage L3-L1 0 to 1000 V - RO 6-8 P036 Earth Leakage Percentage Current 0 to 3334 % - RO 6-8 P037 Earth Leakage True RMS Current 0.000 to 10.000 A - RO 6-9 P042 Powered Relay Time 0 to 65530 h - RO 6-9 P043 Motor Running Time 0 to 65530 h - RO 6-9 P044 Meter kWh 0.0 to 999.9 kWh - RO 6-9 P045 Meter MWh 0 to 65535 MWh - RO 6-9 P046 Meter kVArh 0.0 to 999.9 kVArh - RO 6-10 P047 Meter MVArh 0 to 65535 MVArh - RO 6-10 P050 Motor Thermal Protection 0 to 100 % - RO 6-10 P051 Current Imbalance Level 0 to 100 % - RO 6-10 P052 Earth Fault Level 0 to 200 % - RO 6-11 P053 Voltage Unbalance Level 0 to 100 % - RO 6-11 P060 Number of Starts 0 to 65535 - RO 6-11

bit1 = Trip bit2 = Alarm/Fault bit3 = Motor On bit4 = Remote Mode

bit1 = HMI I key bit2 = Speed Direction/Speed bit3 = Motor Transition bit4 = Cooling Time

0 to 63 - RO 5-8

bit0 = O1 bit1 = O2 bit2 = O3 bit3 = O4

1 = ELS 2 = PTC/ELS

Factory

Setting

- RO 6-4

- RO 6-6

- RO 6-7

User

Setting

Proprieties Page

SRW 01 | 0-1

Page 10

Quick Reference of Parameters

Parameter Description Adjustable Range

P061 Number of Overload Trips 0 to 65535 - RO 6-11 P062 Number of Current Imbalance Trips 0 to 65535 - RO 6-11 P063 Number of Earth Fault Trips 0 to 65535 - RO 6-11 P064 Number of Phase Loss (Current)

Trips

P065 Number of Overcurrent Trips 0 to 65535 - RO 6-12 P066 Number of Undercurrent Trips 0 to 65535 - RO 6-12 P067 Number of Frequency Out of Range

Trips

P068 Number of PTC Trips 0 to 65535 - RO 6-12 P069 Number of Earth Leakage Trips 0 to 65535 - RO 6-12 P070 Number of External Fault Trips 0 to 65535 - RO 6-13 P071 Trip Status 1 (binary) bit0 = PTC

P072 Trip Status 2 (binary) bit0 = Phase Loss (Current)

P073 Trip Status 3 (binary) bit0 = Earth Leakage

P075 Alarm Status 1 (binary) bit0 = PTC

P076 Alarm Status 2 (binary) bit0 = Phase Loss (Current)

P077 Alarm Status 3 (binary) bit0 = Earth Leakage

P078 General Trip Status 2 0 to 65535 - RO 6-14 P079 General Alarm Status 2 0 to 65535 - RO 6-15 P080 General Trip Status 0 to 65535 - RO 6-15 P081 General Alarm Status 0 to 65535 - RO 6-15 P082 Total Number of Trips 0 to 65535 - RO 6-15 P084 Communication Protocol 0 = None

P085 Type of Digital Inputs UC 0 = Invalid

P086 Digital Inputs I5 to I10 Status

(decimal)

P087 Digital Outputs O5 to O8 Status

(binary)

P100 Number of Voltage Unbalance 0 to 65535 - RO 6-16 P101 Number of Phase Loss (Voltage) 0 to 65535 - RO 6-16 P102 Number of Overvoltage Trips 0 to 65535 - RO 6-17 P103 Number of Undervoltage Trips 0 to 65535 - RO 6-17

0 to 65535 - RO 6-12

bit1 = Out of Frequency bit2 = Undercurrent bit3 = Overcurrent

bit1 = Current Imbalance bit2 = Earth Fault bit3 = Overload

bit1 = External Fault bit2 = Trip Test bit3 = Phase Sequence

bit1 = Out of Frequency bit2 = Undercurrent bit3 = Overcurrent

bit1 = Current Imbalance bit2 = Earth Fault bit3 = Overload

bit1 = External Fault bit2 = No Function bit3 = No Function

1 = Modbus-RTU 2 = DeviceNet 3 = Proﬁbus DP 4 = Modbus-TCP 5 = Ethernet/IP 6 = ProﬁNet IO

1 = Invalid 2 = 24 Vdc 3 = 110 Vac

0 to 63 - RO 5-9

bit0 = O5 bit1 = O6 bit2 = O7 bit3 = O8

Factory

Setting

- RO 6-13

- RO 6-14

- RO 6-15

- RO 3-8

- RO 5-9

User

Setting

Proprieties Page

0-2 | SRW 01

Page 11

Quick Reference of Parameters

Parameter Description Adjustable Range

P104 Number of Underpower 0 to 65535 - RO 6-17 P105 Number of Overpower Trips 0 to 65535 - RO 6-17 P106 Number of Power Under Factor

Trips

P107 Number of Power Over Factor Trips 0 to 65535 - RO 6-18 P110 Trip Status 4 (binary) bit0 - Voltage Unbalance

P111 Trip Status 5 (binary) bit0 - Underpower

P115 Alarm Status 4 (binary) bit0 - Voltage Unbalance

P116 Alarm Status 5 (binary) bit0 - Underpower

P118 Parameter Deﬁned by User 1 1 to 1109 5 Sys, rw 7-3 P119 Parameter Deﬁned by User 2 1 to 1109 20 Sys, rw 7-3 P120 Last Error Code 0 to 200 - RO 7-4 P121 Phase L1 Current Last Error 0.0 to 6553.5 A - RO 7-4 P122 Phase L2 Current Last Error 0.0 to 6553.5 A - RO 7-4 P123 Phase L3 Current Last Error 0.0 to 6553.5 A - RO 7-5 P124 Thermal Protection Last Error 0 to 100 % - RO 7-5 P125 Earth Leakage Current Last Error 0.000 to 10.000 A - RO 7-5 P126 Logical Status Last Error 0 to 65535 - RO 7-6 P127 Voltage L1-L2 Last Error 0 to 1000 V - RO 7-6 P128 Voltage L2-L3 Last Error 0 to 1000 V - RO 7-6 P129 Voltage L3-L1 Last Error 0 to 1000 V - RO 7-7 P130 Deﬁned by User 1 Last Error 0 to 65535 - RO 7-7 P131 Deﬁned by User 2 Last Error 0 to 65535 - RO 7-7 P135 Second Error Code 0 to 200 - RO 7-4 P136 Phase L1 Current Second Error 0.0 to 6553.5 A - RO 7-4 P137 Phase L2 Current Second Error 0.0 to 6553.5 A - RO 7-4 P138 Phase L3 Current Second Error 0.0 to 6553.5 A - RO 7-5 P139 Thermal Protection Second Error 0 to 100 % - RO 7-5 P140 Earth Leakage Current Second

Error

P141 Logical Status Second Error 0 to 65535 - RO 7-6 P142 Voltage L1-L2 Second Error 0 to 1000 V - RO 7-6 P143 Voltage L2-L3 Second Error 0 to 1000 V - RO 7-6 P144 Voltage L3-L1 Second Error 0 to 1000 V - RO 7-7 P145 Deﬁned by User 1 Second Error 0 to 65535 - RO 7-7 P146 Deﬁned by User 2 Second Error 0 to 65535 - RO 7-7 P150 Third Error Code 0 to 200 - RO 7-4 P151 Phase L1 Current Third Error 0.0 to 6553.5 A - RO 7-4 P152 Phase L2 Current Third Error 0.0 to 6553.5 A - RO 7-4 P153 Phase L3 Current Third Error 0.0 to 6553.5 A - RO 7-5 P154 Thermal Protection Third Error 0 to 100 % - RO 7-5 P155 Earth Leakage Current Third Error 0.000 to 10.000 A - RO 7-5 P156 Logical Status Third Error 0 to 65535 - RO 7-6 P157 Voltage L1-L2 Third Error 0 to 1000 V - RO 7-6 P158 Voltage L2-L3 Third Error 0 to 1000 V - RO 7-6 P159 Voltage L3-L1 Third Error 0 to 1000 V - RO 7-7

0 to 65535 - RO 6-17

bit1 - Phase Loss (Voltage) bit2 - Overvoltage bit3 - Undervoltage

bit1 - Overpower bit2 - Power Under Factor bit3 - Power Over Factor

bit1 - Phase Loss (Voltage) bit2 - Overvoltage bit3 - Undervoltage

bit1 - Overpower bit2 - Power Under Factor bit3 - Power Over Factor

0.000 to 10.000 A - RO 7-5

Factory

Setting

- RO 6-18

- RO 6-19

User

Setting

Proprieties Page

SRW 01 | 0-3

Page 12

Quick Reference of Parameters

Parameter Description Adjustable Range

P160 Deﬁned by User 1 Third Error 0 to 65535 - RO 7-7 P161 Deﬁned by User 2 Third Error 0 to 65535 - RO 7-7 P165 Fourth Error Code 0 to 200 - RO 7-4 P166 Phase L1 Current Fourth Error 0.0 to 6553.5 A - RO 7-4 P167 Phase L2 Current Fourth Error 0.0 to 6553.5 A - RO 7-4 P168 Phase L3 Current Fourth Error 0.0 to 6553.5 A - RO 7-5 P169 Thermal Protection Fourth Error 0 to 100 % - RO 7-5 P170 Earth Leakage Current Fourth Error 0.000 to 10.000 A - RO 7-5 P171 Logical Status Fourth Error 0 to 65535 - RO 7-6 P172 Voltage L1-L2 Fourth Error 0 to 1000 V - RO 7-6 P173 Voltage L2-L3 Fourth Error 0 to 1000 V - RO 7-6 P174 Voltage L3-L1 Fourth Error 0 to 1000 V - RO 7-7 P175 Deﬁned by User 1 Fourth Error 0 to 65535 - RO 7-7 P176 Deﬁned by User 2 Fourth Error 0 to 65535 - RO 7-7 P180 Fifth Error Code 0 to 200 - RO 7-4 P181 Phase L1 Current Fifth Error 0.0 to 6553.5 A - RO 7-4 P182 Phase L2 Current Fifth Error 0.0 to 6553.5 A - RO 7-4 P183 Phase L3 Current Fifth Error 0.0 to 6553.5 A - RO 7-5 P184 Thermal Protection Fifth Error 0 to 100 % - RO 7-5 P185 Earth Leakage Current Fifth Error 0.000 to 10.000 A - RO 7-5 P186 Logical Status Fifth Error 0 to 65535 - RO 7-6 P187 Voltage L1-L2 Fifth Error 0 to 1000 V - RO 7-6 P188 Voltage L2-L3 Fifth Error 0 to 1000 V - RO 7-6 P189 Voltage L3-L1 Fifth Error 0 to 1000 V - RO 7-7 P190 Deﬁned by User 1 Fifth Error 0 to 65535 - RO 7-7 P191 Deﬁned by User 2 Fifth Error 0 to 65535 - RO 7-7 P200 Password Status 0 = Inactive

1 = Active 2 = Change Password

P202 Operation Mode 0 = Transparent

1 = Overload Relay 2 = Direct Starter 3 = Reversing Starter 4 = Star/Delta 5 = Dahlander 6 = Pole Changing 7 = PLC

P204 Counter Reset / Factory Settings 0 = No Function

1 = Reset of the Motor Running Time 2 = It resets the Protection counters and the Number of Starts counter 3 = Resets Power Meters 4 = Reset Trip History 5 = Reset to the Factory Settings

P205 Reading Parameter Selection 1 = P002 (% IN Current)

2 = P003 (True RMS Current) 3 = P005 (Line Frequency) 4 = P006 (Relay Status (binary)) 5 = User deﬁned

P206 User Selection 1 to 1109 3 Sys, rw 4-3 P208 Check Back Type 0 = Motor Current

1 = Digital Input Ix 2 = Simulation

P209 Execution Time 0.1 to 99.0 s 0.5 s Sys, CFG 5-11 P210 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

Factory

Setting

1 Sys, rw 4-4

1 Sys, CFG 5-10

0 Sys, rw 5-60

2 Sys, rw 4-3

0 Sys, CFG 5-11

User

Setting

Proprieties Page

0-4 | SRW 01

Page 13

Quick Reference of Parameters

Parameter Description Adjustable Range

P220 Local/Remote Selection 0 = Always Local

P229 Local Command Selection 0 = Ix

P230 Two or Three-wire Command (Ix) 0 = Two wires (Switch)

P231 Stop Logic with Three-wire

Command (Ix)

P232 Remote Command Selection 0 = Ix

P233 Retentive or Impulsive Control

(Fieldbus)

P277 Digital Output O1 Function 0 = Internal Use

P278 Digital Output O2 Function See Options in P277 0 Sys, CFG 5-6 P279 Digital Output O3 Function See Options in P277 1 Sys, CFG 5-6 P280 Digital Output O4 Function See Options in P277 1 Sys, CFG 5-6 P281 Digital Output O5 Function See Options in P277 1 Sys, CFG 5-6 P282 Digital Output O6 Function See Options in P277 1 Sys, CFG 5-6 P283 Digital Output O7 Function See Options in P277 1 Sys, CFG 5-6 P284 Digital Output O8 Function See Options in P277 1 Sys, CFG 5-7 P294 Expansion Digital Unit (EDU) 0 = EDU Not Used

1 = Always Remote 2 = HMI key (LOC) 3 = HMI key (REM) 4 = Digital Input I13 5 = Digital Input I14 6 = Fieldbus (LOC) 7 = Fieldbus (REM) 8 = USB/Ladder 9 = Digital Input I15 10 = Digital Input I16

1 = HMI 2 = USB/Ladder

1 = Three wires (Pushbutton)

0 = Digital Input I11 (NC) 1 = Digital Input I11 (NO)

1 = HMI 2 = USB/Ladder 3 = Fieldbus

0 = Retentive (Switch) 1 = Impulsive (Pushbutton)

1 = Ladder 2 = Fieldbus 3 = Alarm/Fault Signal (NO) 4 = Trip/Error Signal (NO) 5 = Trip/Error Signal (NC) 6 = Check Back Signal (NO) 7 = Trip Signal PTC (NO) 8 = Trip Signal Out of Frequency (NO) 9 = Trip Signal Undercurrent (NO) 10 = Trip Signal Overcurrent (NO) 11 = Trip Signal Phase Loss (current) (NO) 12 = Trip Signal Current Imbalance (NO) 13 = Trip Signal Earth Fault (NO) 14 = Trip Signal Overload (NO) 15 = Trip Signal Earth Leakage (NO) 16 = Trip Signal External Fault (NO) 17 = Trip Signal Trip Test (NO) 18 = Trip Signal Phase Sequence (NO) 19 = Trip Signal Voltage Unbalance (NO) 20 = Trip Signal Phase Loss (voltage) (NO) 21 = Trip Signal Overvoltage (NO) 22 = Trip Signal Undervoltage (NO) 23 = Trip Signal Underpower (NO) 24 = Trip Signal Overpower (NO) 25 = Trip Signal Power Under Factor (NO) 26 = Trip Signal Power Over Factor (NO)

1 = EDU Used

Factory

Setting

2 Sys, rw 5-2

0 Sys, rw 5-2

1 Sys, CFG 5-5

0 Sys, CFG 5-5

3 Sys, rw 5-3

1 Sys, CFG 5-3

0 Sys, CFG 5-6

0 Sys, CFG 3-10

User

Setting

Proprieties Page

SRW 01 | 0-5

Page 14

Quick Reference of Parameters

Parameter Description Adjustable Range

P295 Currente and/or Voltage

Measurement Unit (UMC/UMCT)

P296 Number of Turns Through the UMC/

UMCT

P297 Motor Type 0 = Three-Phase

P298 External CT Primary Current 1 a 5000 A 1 A Sys, CFG 5-27 P299 External CT Secondary Current 0 = 1 A

P310 Conﬁguration of the Serial Interface

Bytes

P311 Action for HMI Communication Error 0 = Only Fault Indication

P312 Action for EDU Communication

Error

P313 Action in Case of Communication

Error

P315 Action in the Local/Remote

Transition

P400 Motor Nominal Voltage 0 to 1000 V 380 V Sys, CFG 5-28 P401 Motor Nominal Current 1 0.0 to 5000.0 A 0.5 A Sys, CFG 5-28 P402 Motor Nominal Current 2 0.0 to 5000.0 A 0.5 A Sys, CFG 5-29 P404 Motor Rated Power 0.1 to 6553.5 kW 75.0 kW Sys, CFG 5-29 P406 Service Factor 1.00 to 1.50 1.15 Sys, CFG 5-48 P407 Line Frequency 0 to 99 Hz 60 Hz Sys, CFG 5-39 P408 Motor Phase Sequence 0 = 1-2-3

P500 Parameter Upload/Download 0 = No Function

P501 User Program Upload/Download 0 = No Function

P601 Reset Selection 0 = Without Local Reset

P602 Function Test/Reset Button 0 = Disabled

P605 Hysteresis 0 to 15 % 5 % Sys, rw 5-33

0 = UMC0/UMCT0 (0.25 – 2.5 A) 1 = UMC1/UMCT1 (0.5 – 5 A) 2 = UMC2/UMCT2 (1.25 – 12.5 A) 3 = UMC3/UMCT3 (2.5 – 25 A) 4 = UMC4/UMCT4 (12.5 – 125 A) 5 = UMC5/UMCT5 (42 – 420 A) 6 = UMC6/UMCT6 (84 – 840 A) 7 = UMC1/UMCT1 + External CT

1 to 10 1 Sys, CFG 5-27

1 = Single-Phase

1 = 5 A

0 = 8 data bits, no parity, 1 stop bit 1 = 8 data bits, even parity, 1 stop bit 2 = 8 data bits, odd parity, 1 stop bit 3 = 8 data bits, no parity, 2 stop bit 4 = 8 data bits, even parity, 2 stop bit 5 = 8 data bits, odd parity, 2 stop bit

1 = The Motor is Turned Off

0 = Only Fault Indication 1 = The Motor is Turned Off

0 = Only Fault Indication 1 = The Motor is Turned Off 2 = The Motor is Turned Off and the Commands are Reset 3 = It Changes to Local

0 = Keep Motor Status 1 = The Motor is Turned Off

1 = 3-2-1

1 = Save Bank 1 2 = Save Bank 2 3 = Save Bank 3 4 = Load Bank 1 5 = Load Bank 2 6 = Load Bank 3

1 = Save Applicative 1 2 = Save Applicative 2 3 = Save Applicative 3 4 = Load Applicative 1 5 = Load Applicative 2 6 = Load Applicative 3

1 = Front Button 2 = Reset key (HMI) 3 = Digital Input I13 4 = Digital Input I14 5 = Digital Input I15 6 = Digital Input I16

1 = Enabled

Factory

Setting

1 Sys, CFG 5-26

0 Sys, CFG 5-27

3 Sys, CFG 5-30

0 Sys, rw 5-4

0 Sys, rw 3-10

0 Sys, rw 5-30

0 Sys, CFG 5-3

0 Sys, CFG 5-29

0 Sys, rw 4-5

0 Sys, rw 4-6

1 Sys, rw 5-58

1 Sys, rw 5-59

User

Setting

Proprieties Page

0-6 | SRW 01

Page 15

Quick Reference of Parameters

Parameter Description Adjustable Range

P606 External Fault Protection 0 = Disabled

P607 Auto-reset External Fault 0 = Disabled

P608 External Fault Timing 0 = Disabled

P609 External Fault Time 1 to 99 s 1 s Sys, rw 5-34 P610 External Fault Monitoring of

Protection

P611 External Fault Signal 0 = Digital Input I11

P612 External Fault Signal Logic 0 = Digital Input NC

P613 External Fault Protection Action 0 = Alarm

P614 Current Imbalance 5 to 100 % 40 % Sys, rw 5-36 P615 Current Imbalance Time 0 = Disabled

P616 Current Imbalance Protection Action 0 = Alarm

P617 Earth Fault 40 to 100 % 50 % Sys, rw 5-36 P618 Earth Fault Time 0 = Disabled

P619 Earth Fault Protection Action 0 = Alarm

P620 Phase Loss (Current) Time 0 = Disabled

P621 Phase Loss (Current) Protection

Action

P622 Overcurrent 50 to 1000 % 400 % Sys, rw 5-38 P623 Overcurrent Time 0 = Disabled

P624 Overcurrent Protection Action 0 = Alarm

P625 Undercurrent 5 to 100 % 20 % Sys, rw 5-38 P626 Undercurrent Time 0 = Disabled

P627 Undercurrent Protection Action 0 = Alarm

P628 Frequency Out of Range 5 to 20 % 5 % Sys, rw 5-39 P629 Frequency Out of Range Time 0 = Disabled

P630 Frequency Out of Range Protection

Action

P631 Earth Leakage Protection 0 = Disabled

P632 Earth Leakage Current Level

Selection

P633 Earth Leakage Time 0.1 to 99.0 s 0.5 s Sys, rw 5-41 P634 Earth Leakage Protection Action 0 = Alarm

P635 Earth Leakage Start Up Inhibit 0 = Disabled

1 = Enabled

0 = Always 1 = Only When the Motor is Running

1 = Digital Input I12 2 = Digital Input I13 3 = Digital Input I14 4 = Digital Input I15 5 = Digital Input I16

1 = Digital Input NO

1 = Switch Off (Trip)

1 to 99 s = Enabled

1 = Switch Off (Trip)

1 to 99 s = Enabled

1 = Switch Off (Trip)

1 to 99 s = Enabled

0 = Alarm 1 = Switch Off (Trip)

1 to 99 s = Enabled

1 = Switch Off (Trip)

1 to 99 s = Enabled

1 = Switch Off (Trip)

1 to 99 s = Enabled

0 = Alarm 1 = Switch Off (Trip)

1 = Enabled

0 = 0.3 A 1 = 0.5 A 2 = 1 A 3 = 2 A 4 = 3 A 5 = 5 A

1 = Switch Off (Trip)

1 = Enabled

Factory

Setting

0 Sys, rw 5-33

0 Sys, rw 5-34

3 Sys, rw 5-35

1 Sys, rw 5-35

3 s Sys, rw 5-36

1 Sys, rw 5-36

3 s Sys, rw 5-37

1 Sys, rw 5-37

3 s Sys, rw 5-37

1 Sys, rw 5-37

3 s Sys, rw 5-38

1 Sys, rw 5-38

0 s Sys, rw 5-39

1 Sys, rw 5-39

0 s Sys, rw 5-39

1 Sys, rw 5-40

0 Sys, rw 5-41

2 Sys, rw 5-41

1 Sys, rw 5-41

0 Sys, rw 5-41

User

Setting

Proprieties Page

SRW 01 | 0-7

Page 16

Quick Reference of Parameters

Parameter Description Adjustable Range

P636 Earth Leakage Start up Time Inhibit 1 to 600 s 5 s Sys, rw 5-42 P637 Earth Leakage Short circuit Trip

Inhibit

P640 Relay Tripping Class 0 = Disabled

P641 Overload Protection Action 0 = Alarm

P642 Cooling Time 0 = Disabled

P643 Auto-reset 0 = Disabled

P644 PTC Protection 0 = Disabled

P645 PTC Protection Action 0 = Alarm

P646 Overload Protection Pre-Alarm 0 to 99 % 80 % Sys, rw 5-45 P647 Overload Pre-alarm Auto-Reset 0 to 99 % 75 % Sys, rw 5-45 P648 Phase Sequence 0 = Disabled

P649 Voltage Unbalance 1 to 30 % 5 % Sys, rw 5-52 P650 Voltage Unbalance Time 0 = Disabled

P651 Voltage Unbalance Protection

Action

P652 Phase Loss Time (Voltage) 0 = Disabled

P653 Phase Loss Protection Action

(Voltage)

P654 Overvoltage 1 to 30 % 15 % Sys, rw 5-53 P655 Overvoltage Time 0 = Desabilitado

P656 Overvoltage Protection Action 0 = Alarm

P657 Undervoltage 1 to 30 % 15 % Sys, rw 5-54 P658 Undervoltage Time 0 = Disabled

P659 Undervoltage Protection Action 0 = Alarm

P660 Underpower 1 to 100 % 30 % Sys, rw 5-55 P661 Underpower Time 0 = Disabled

P662 Underpower Protection Action 0 = Alarm

P663 Overpower 1 to 100 % 30 % Sys, rw 5-55 P664 Overpower Time 0 = Disabled

P665 Overpower Protection Action 0 = Alarm

P666 Power Under Factor 0.00 to 1.00 0.60 Sys, rw 5-56 P667 Power Under Factor Time 0 = Disabled

P668 Power Under Factor Protection

Action

0 = Disabled 1 = Enabled

1 = Class 5 2 = Class 10 3 = Class 15 4 = Class 20 5 = Class 25 6 = Class 30 7 = Class 35 8 = Class 40 9 = Class 45

1 = Switch Off (Trip)

1 to 3600 s =Enabled

1 = Enabled

1 = Switch Off (Trip)

1 = Enabled

1 to 99 s = Enabled

0 = Alarm 1 = Switch Off (Trip)

1 to 99 s = Enabled

0 = Alarm 1 = Switch Off (Trip)

1 to 99 s = Habilitado

1 = Switch Off (Trip)

1 to 99 s = Enabled

1 = Switch Off (Trip)

1 to 99 s = Enabled

1 = Switch Off (Trip)

1 to 99 s = Enabled

1 = Switch Off (Trip)

1 to 99 s = Enabled

0 = Alarm 1 = Switch Off (Trip)

Factory

Setting

0 Sys, rw 5-42

2 Sys, rw 5-44

1 Sys, rw 5-44

0 s Sys, rw 5-48

0 Sys, rw 5-60

0 Sys, rw 5-43

1 Sys, rw 5-44

0 Sys, rw 5-51

3 s Sys, rw 5-52

1 Sys, rw 5-52

3 s Sys, rw 5-52

1 Sys, rw 5-53

3 s Sys, rw 5-53

1 Sys, rw 5-53

3 s Sys, rw 5-54

1 Sys, rw 5-54

0 s Sys, rw 5-55

1 Sys, rw 5-55

0 s Sys, rw 5-55

1 Sys, rw 5-56

0 s Sys, rw 5-56

1 Sys, rw 5-57

User

Setting

Proprieties Page

0-8 | SRW 01

Page 17

Quick Reference of Parameters

Parameter Description Adjustable Range

P669 Power Over Factor 0.00 to 1.00 0.89 Sys, rw 5-57 P670 Power Over Factor Time 0 = Disabled

P671 Power Over Factor Protection

Action

P680 Status Word 0000h to FFFFh - RO 5-30 P682 Control Word 0000h to FFFFh 0000h rw 5-30 P751 Ethernet Communication Status 0 = Setup

P753 Ethernet Baud Rate 0 = Auto

P756 Modbus TCP Timeout 0.0 to 65.5 s 0.0 s Sys, rw 5-30 P760 IP Address Conﬁg 0 = Parameters

P761 IP Address Conﬁg (1) 0 to 255 192 Sys, rw 5-30 P762 IP Address Conﬁg (2) 0 to 255 168 Sys, rw 5-30 P763 IP Address Conﬁg (3) 0 to 255 0 Sys, rw 5-30 P764 IP Address Conﬁg (4) 0 to 255 10 Sys, rw 5-30 P765 CIDR Subnet 0 to 31 24 Sys, rw 5-30 P766 Default Gateway Conﬁguration (1) 0 to 255 0 Sys, rw 5-30 P767 Default Gateway Conﬁguration (2) 0 to 255 0 Sys, rw 5-30 P768 Default Gateway Conﬁguration (3) 0 to 255 0 Sys, rw 5-30 P769 Default Gateway Conﬁguration (4) 0 to 255 0 Sys, rw 5-30 P799 UMC/UMCT Gain Adjustment 0.900 to 1.100 1.000 Sys, rw 5-27 P800 Read Word #1 0 to 65535 680 Sys, rw 5-30 P801 Read Word #2 0 to 65535 0 Sys, rw 5-30 P802 Read Word #3 0 to 65535 0 Sys, rw 5-30 P803 Read Word #4 0 to 65535 0 Sys, rw 5-30 P804 Read Word #5 0 to 65535 0 Sys, rw 5-30 P805 Read Word #6 0 to 65535 0 Sys, rw 5-30 P806 Read Word #7 0 to 65535 0 Sys, rw 5-30 P807 Read Word #8 0 to 65535 0 Sys, rw 5-30 P808 Read Word #9 0 to 65535 0 Sys, rw 5-30 P809 Read Word #10 0 to 65535 0 Sys, rw 5-30 P810 Read Word #11 0 to 65535 0 Sys, rw 5-30 P811 Read Word #12 0 to 65535 0 Sys, rw 5-30 P812 Read Word #13 0 to 65535 0 Sys, rw 5-30 P813 Read Word #14 0 to 65535 0 Sys, rw 5-30 P814 Read Word #15 0 to 65535 0 Sys, rw 5-30 P815 Read Word #16 0 to 65535 0 Sys, rw 5-30 P816 Read Word #17 0 to 65535 0 Sys, rw 5-30 P817 Read Word #18 0 to 65535 0 Sys, rw 5-30 P818 Read Word #19 0 to 65535 0 Sys, rw 5-30 P819 Read Word #20 0 to 65535 0 Sys, rw 5-30 P850 Write Word #1 0 to 65535 682 Sys, rw 5-31 P851 Write Word #2 0 to 65535 0 Sys, rw 5-31 P852 Write Word #3 0 to 65535 0 Sys, rw 5-31

1 to 99 s = Enabled

0 = Alarm 1 = Switch Off (Trip)

1 = Init 2 = Wait Comm 3 = Idle 4 = Data Active 5 = Error 6 = Reserved 7 = Exception 8 = Access Error

1 = 10Mbit/s, half duplex 2 = 10Mbit/s, full duplex 3 = 100Mbit/s, half duplex 4 = 100Mbit/s, full duplex

1 = DHCP 2 = DCP

Factory

Setting

0 s Sys, rw 5-57

1 Sys, rw 5-57

- RO 5-30

0 Sys, rw 5-30

1 Sys, rw 5-30

User

Setting

Proprieties Page

SRW 01 | 0-9

Page 18

Quick Reference of Parameters

Parameter Description Adjustable Range

P853 Write Word #4 0 to 65535 0 Sys, rw 5-31 P854 Write Word #5 0 to 65535 0 Sys, rw 5-31 P855 Write Word #6 0 to 65535 0 Sys, rw 5-31 P856 Write Word #7 0 to 65535 0 Sys, rw 5-31 P857 Write Word #8 0 to 65535 0 Sys, rw 5-31 P858 Write Word #9 0 to 65535 0 Sys, rw 5-31 P859 Write Word #10 0 to 65535 0 Sys, rw 5-31 P860 Write Word #11 0 to 65535 0 Sys, rw 5-31 P861 Write Word #12 0 to 65535 0 Sys, rw 5-31 P862 Write Word #13 0 to 65535 0 Sys, rw 5-31 P863 Write Word #14 0 to 65535 0 Sys, rw 5-31 P864 Write Word #15 0 to 65535 0 Sys, rw 5-31 P865 Write Word #16 0 to 65535 0 Sys, rw 5-31 P866 Write Word #17 0 to 65535 0 Sys, rw 5-31 P867 Write Word #18 0 to 65535 0 Sys, rw 5-31 P868 Write Word #19 0 to 65535 0 Sys, rw 5-31 P869 Write Word #20 0 to 65535 0 Sys, rw 5-31 P899 Update Ethernet Conﬁguration 0 = Normal Operation

P1000 User Program Status 0 = No Program

P1001 User Program Disabling 0 = Executes User Program

P1010 to

P1109

User Parameters 0 to 65535 0 Us, rw 5-61

1 = Update Conﬁguration

1 = Install. Program 2 = Incompat. Program 3 = Program Stopped 4 = Program Running

1 = Stops User Program

Factory

Setting

0 Sys, CFG 5-31

- RO 5-61

0 Sys, rw 5-61

User

Setting

Proprieties Page

RO = read-only parameter. rw = reading/writing parameter. 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

1 SAFETY INSTRUCTIONS

This manual contains the necessary information for the correct use of the SRW 01 smart relay.

It has been developed to be used by personnel with adequate training or technical qualiﬁcation to operate this type of equipment.

1.1 SAFETY WARNINGS IN THE MANUAL

The following safety warnings are used in this manual:

DANGER!

The nonobservance of the procedures recommended in this warning can lead to death, serious injuries and considerable material damage.

ATTENTION!

The nonobservance of the procedures recommended in this warning can lead to material damage.

NOTE!

The text intents to supply important information for the correct understanding and good operation of the product.

1.2 PRELIMINARY RECOMMENDATIONS

DANGER!

Only qualiﬁed personnel familiar with the SRW 01 smart relay and associated equipment should plan or implement the installation, start-up, operation and maintenance of this equipment These personnel must follow all the safety instructions included in this Manual and/or deﬁned by local regulations. Failure to comply with these instructions may result in life threatening and/or equipment damage.

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.

3. Provide ﬁrst aid services.

DANGER!

Always disconnect the main power supply before touching any electrical device associated with the relay.

ATTENTION!

Control, sensor and communication cables must be installed observing the minimun distance of 25 cm away from power cables, and preferably installed in grounded metal conduits.

ATTENTION!

For digital inputs, it is recomended the use of shielded cables when the cable length exceeds 200 m or if they are subject to electromagnetic interference. If any further information is necessay to install the cable, refer to the cable manufacturer for the proper installation.

SRW 01 | 1-1

Page 20

Safety Instructions

NOTE!

The incorrect selection of the Current Measurement Unit (UMC) or Current/Voltage Measurement Unit (UMCT), by means of parameter P295 and/or lack of the setting of the motor rated current (P401 and/ or P402), may result in the incorrect communication of the value of measured current, making bit 3 of parameter P006 – Relay Status (binary) indicate that the motor in ON, not allowing the modiﬁcation of parameters whose modiﬁcation is only allowed when the motor is not energized. In the attempt of modifying those parameters, the message “stop” will ﬂash for three seconds on the

HMI and the modiﬁcation will not be accepted. In those cases, disconnect the cable that interconnects the Control Unit (UC) and the Current Measurement Unit (UMC) or Current/Voltage Measurement Unit (UMCT). The Control Unit (UC) will signal by means of the status led and message “E0085” on the HMI that there is no communication with the UMC/UMCT and the current informed will be zero (0). Set parameter P295 according to the Current Measurement Unit (UMC) or Current/Voltage Measurement Unit (UMCT) obtained and set the motor rated current (P401 and/or P402) according to data on the motor nameplate. After setting those parameters, reconnect the connecting cable between the UC and the UMC/UMCT and run an error reset using the front button, and then set the other parameters of the system.

ATTENTION!

The digital inputs and outputs functions of the Control Unit are automatically conﬁgured according to the selection of the operating mode through parameter P202. The factory default operating mode is the overload relay mode (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 – WLP.

 Ethernet communication manual.

These manuals are they are available for download on the website: www.weg.net.

2.2 TERMS AND DEFINITIONS USED IN THE MANUAL

Amp, A: ampere is the electric current level unit of measurement.

V: volt is the voltage unit of measurement.

PC: Personal computer

PE: protective earth.

UMCT: Current/Voltage Measurement Unit.

W: watt, basic unit of real power. It is obtained by the direct product of voltage (V) by the current (I).

kW: kilowatts = 1000 (103) W.

VA: volt ampere, unit of measurement of apparent power.

kVA: kilovolt-ampere = 1000 (103) VA.

VAr: reactive volt-ampere, unit of measurement of reactive power.

kVAr: kiloVolt-ampere-reactive = 1000 (103) VA.

kWh: kilowatt-hour, it represents the consumed power in a time period. And the product of the load real power (kW) by the number of hours (h) it was on.

MWh: megawatt-hour = 1,000,000 (106) W or 1000 (103) kW.

PTC: resistor whose resistance value in ohms increases proportionally to the temperature increase; used as a

temperature sensor in electric motors.

HMI: human-machine interface; It is a device that allows the motor control, as well as viewing and editing the relay parameters. It presents keys for the motor command, navigation keys and a display.

Flash Memory: non-volatile memory that can be electronically written and erased.

Ram Memory: random access memory (volatile).

USB: universal serial bus; is a serial bus standard that allows devices to be connected using the plug and play

concept.

°C: celsius or centigrade degrees.

º F: fahrenheit.

SRW 01 | 2-1

Page 22

General Information

AC: alternating current.

DC: direct current.

CV: cheval vapeur = 736 Watts (unit of power, used to indicate the mechanical power of electric motors).

hp: horse power = 746 Watts (unit of power, used to indicate the mechanical power of electric motors).

SF: service factor.

Hz: hertz.

mA: milliamp = 0.001 ampere.

min: minute.

ms: millisecond = 0.001 second.

rms: “root mean square”; effective value.

rpm: revolutions per minute; speed unit.

s: second.

V: volts.

Ω: ohms.

NO: normally open contact.

NC: normally closed contact.

Check Back: veriﬁcation of running motor.

Trip: switching off of the motor by the action of a protection.

UC: control unit.

UMC: current measurement unit.

MC: communication module.

mm: millimeter.

in: inch.

m: meter.

ELS: earth leakage sensor.

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

General Information

2.3 ABOUT THE SRW 01

The SRW 01 is a low voltage electric motor management system that presents cutting edge technology and has network communication capabilities. For being modular, its functionalities can be extended, making it a versatile product, and prepared for several applications.

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.

By using the Expansion Digital Unit (EDU), it is possible to increase the number of digital inputs and outputs in the Control Unit (SRW01-UC), in a total of 12 digital inputs and 8 outputs.

It is possible to use a Current/Voltage Measurement Unit (UMCT) in place of a Current Measurement Unit (UMC). Besides measuring the motor currents (like the UMC), it is possible to monitor the voltages up to 690 V, phase sequence, power factor (cos ϕ) and all motor powers.

In order to exchange information via Ethernet communication network, the SRW 01 features two RJ45 ports with integral switch, which enables the execution of different network topologies of the ﬁeldbus technique.

The SRW 01 has an USB port that makes the parameterization, monitoring and programming of the relay easier by using a PC with the WLP software. Because of the thermal memory, the relay is able to keep the motor thermal image even when it is not energized.

1 - Digital input indication Led’s 2 - Digital output indication Led’s 3 - Network Led (Net) – indication according to the Table

7.1 on page 7-1

4 - Trip Led

Green – normal operation without Trip Flashing Green – protection alarm Flashing red – protection Trip

5 - Status Led

Green – normal operation without fault or alarm Flashing Green – system alarm

Flashing red – system error 6 - Reset Button 7 - Current Measurement Unit (UMC) connector or Current/ Voltage Measurement Unit (UMCT)

Figure 2.1: SRW 01 control unit identiﬁcation

I11 I12 I13 I14 I15 I16

(a) Control Unit - SRW 01 - UC (b) HMI (vertical) (c) HMI2 (horizontal)

SRW 01 | 2-3

Page 24

General Information

(d) Current Measurement Units - SRW 01 -

UMC1 (5 A), 2 (12.5 A) and 3 (25 A)

(e) Current Measurement Unit -

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 -

SRW 01-UMCT 1 (5 A), 2 (12.5 A) and 3 (25 A)/690 V

2-4 | SRW 01

(i) Current/Voltage Measurement Unit -

SRW 01-UMCT 4 (125 A)/690 V

Page 25

General Information

(j) Current/Voltage Measurement Unit – SRW 01-UMCT 5

(420 A/690 V)

1 - SRW01-EL1 2 - SRW01-EL2 3 - SRW01-EL3 4 - SRW01-EL4

(m) Earth Leakage sensors - SRW01-ELS

(l) Current/Voltage Measurement Unit – SRW 01-UMCT 6

(840 A/690 V) – with busbar accessory

1 - Digital input indication Led’s 2 - Digital output indication Led’s 3 - On Led

Green - Energized device Off - Deenergized device

4 - Status Led

Green - Normal operation Flashing green - Communication to the Control Unit (UC) has been reestablished

Flashing red - No communication with the Control Unit (UC) 5 - Connector for the Control Unit (UC) 6 - Connector for the HMI

(n) Expansion Digital Unit – SRW 01-EDU

Figure 2.2: (a) to (n) SRW 01 components

SRW 01 | 2-5

Page 26

General Information

2.4 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 - Digital input voltage 9 - Connection to the input terminals T1 and T2

10 -UMC/UMCT current range 11 - Protection degree 12 - UMCT voltage range 13 - Connection to the input terminals E1 and E2

MOD.: SRW01-UCE1TE1E47 MAT.: 12105800 OP.: 1234567890

SERIAL#: 1234567890 Us.: 110-240V 50/60Hz-DC Digital Inputs I11-I16: 24VDC Inputs Terminals T1-T2: PTC Inputs Terminals E1-E2: ELS

IEC 60947-4-1 Ui 300V/Uimp 4kv IEC 60947-5-1 Ui 300V/Uimp 4kv

MAX. TA: 55°C (131°F)

AC15 Ie/Ue 1.5A/120V, 0.75A/240V

DC13 Ie/Ue 0.22A/125V, 0.1A/250V Fuse max.: 6A gl/gG Protection degree: IP20

Tripping current at 125% of FLA Aux. Cont. 3A/30VDC/250VAC resistive C300

MADE IN BRAZIL HECHO EN BRASIL

FABRICADO NO BRASIL

V 1.00

20 J

MOD.: SRW01-EDU2 MAT.: 10675557 OP.: 12345678 SERIAL#: 1234567890 Digital Inputs I5-I10: 110V50/60Hz

IE C 6 09 47 -4- 1 Ui 300V/Uimp 4kv IE C 6 09 47 -5- 1 Ui 300V/Uimp 4kv MAX. TA: 55°C (131°F) AC15 Ie/Ue 1.5A/120V, 0.75A/240V DC13 Ie/Ue 0.22A/125V, 0.1A/250V Fuse max.: 6A gl/gG Protection degree: IP20

Aux. Cont. 3A/30VDC/250VAC resistive C300

Use only with: SRW01-UC V3.00 or later

MADE IN BRAZIL HECHO EN BRASIL

FABRICADO NO BRASIL

47 I

V 1.00

4 6

MOD.: SRW01-UMCT1 MAT.: 12345678 SERIAL#: 1234567890 OP.: 12345678 le.: 0,5-5A 50/60 Hz Ue.: 690V 50/60Hz

IEC 6 0947 -4-1 Ui 690V / Uimp 6K V MAX. TA: 55°C (131°F) Protection degree: IP20

Use only with SRW01-UC V4.00 or later See user manual for short circuit ratings

MADE IN BRAZIL HECHO EN BRASIL

FABRICADO NO BRASIL

V 1.234

47 l

MOD.: SRW01-UMC1 MAT.: 10558179 SERIAL#: 1234567890 OP.: 12345678 le.: 0,5-5A 50/60 Hz

IEC 6 0947 -4-1 Ui 690V / Uimp 6K V MAX. TA: 55°C (131°F) Protection degree: IP20

UL 508 MAX. TA: 40°C (104°F) Voltage 600 VAC Trip current at 125% of FLA 75°C CU wire only

Use only with SRW01-UC See user manual for short circuit ratings

MADE IN BRAZIL HECHO EN BRASIL

FABRICADO NO BRASIL

V 1.00

47 l

Figure 2.3: Identiﬁcation labels at the UC, UMC, EDU and UMCT laterals

There is a warning label at the top of the Control Unit (UC) and of the Expansion Digital Unit (EDU), which informs the voltage of the digital inputs for the acquired model.

Figure 2.4: Warning labels at the UC and EDU tops

2.5 HOW TO SPECIFY THE SRW 01 MODEL

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.

In order to open the package:

1. Put the package on a table.

2. Open the package.

3. Take out the product.

2-6 | SRW 01

Page 27

General Information

Verify if:

 The identification label matches the bought model.

 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

place with temperature between - 25 °C and + 80 °C (- 13 °F and + 176 °F).

2.7 POWER FACTOR

The power factor (also called cos ϕ or cosine phi) indicates what percentage of total power supplied (kVA) is effectively used as real power (kW). It can be deﬁned as the relation between the apparent power (S) and the real power (P), or also as the cosine of the displacement between the voltage and current signals.

The apparent power (S), measured in kVA, is the total power generated and transmitted to the load. The real power (P), measured in kW, is the one that effectively performs the work, and the reactive power (Q), measured in kVAr, is only used to create and maintain the electromagnetic ﬁelds within the motor.

Thus, while the real power is always consumed in the execution of the work, the reactive power, besides not producing work, circulates between the loads and the power supply, taking a “space” in the electric system that could be used to supply more real power.

The power factor is a dimensionless number between 0.00 and 1.00 and shows the efﬁciency level of the use of electric systems. Therefore, when we say the power factor is 0.80, it means that 80 % of the apparent power (S) is transformed into real power (P).

The measurement of the power factor, taking into account that the voltage is sine-shaped and the load linear (if there are no harmonics), is obtained by observing the phase displacement between voltage and current in one of the phases that supply the motor in the fundamental frequency. For inductive loads, as in case of asynchroous motors (induction motors), the current signal will always be delayed in relation to the voltage signal.

According to trigonometry, the sinusoidal function can be mapped in a circumference, seeing that a full cycle of the sinusoid is represented by 360º. As the voltage and current signals have the same period, the displacement between signals is easily obtained.

Voltage [V] Current [A]

360º

Time [s]

Figure 2.5: Displacement between voltage and current signals

After obtaining the displacement (ϕ) between the voltage and current signals, the power factor is calculated by means of equation 01.

Power Factor = cos (ϕ)

Equation 01: Calculation of the power factor

SRW 01 | 2-7

Page 28

General Information

From the power factor value, in the case of sine-shaped waves, the real (P), reactive (Q) and apparent (S) powers can be represented by vectors that form a right triangle, also known as power triangle, as shown in Figure 2.6 on

page 2-8 from which the power relations can be obtained.

Reactive power

Apparent power (kVA)

(kVAr)

Real power (kW)

Figure 2.6: Power triangle

2-8 | SRW 01

Page 29

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.

3.1 MECHANICAL INSTALLATION

3.1.1 Environmental Conditions

Avoid:

 Exposure to direct sunlight, rain, high humidity, or sea-air.

 Explosive or corrosive gases or liquids.

 Excessive Vibration.

 Dust, metallic particles or oil mist in the air.

 Closeness to strong magnetic fields or high-current cables.

Allowed environmental conditions for operation:

 Temperature: According IEC: 0 °C to 55 °C (32 °F to 131 °F).

According UL: 0 °C to 40 °C (32 °F to 104 °F).

 Humidity: 5 % to 90 % non-condensing.

 Pollution degree: 2 (according to UL508) with non-conductive pollution. Condensation shall not originate

conduction through the accumulated residues.

 Maximum altitude: 2000 m (6.600 ft) above sea level - nominal conditions. For applications at higher altitudes,

contact WEG.

NOTE!

In order to prevent overheating, the ventilation openings must not be blocked. It is recommended to provide a side clearance of at least 10 mm (± 0.39 in), and a top and bottom clearance of at least 30 mm (±1.18 in) so as to allow a good air circulation and better cooling.

3.1.2 Mounting

The Control Unit (UC), Current Measurement Unit (UMC1, 2, 3 and 4), the Expansion Digital Unit (EDU) and Current/Voltage Measurement Unit (UMCT1, 2, 3 and 4) can be installed in any position.

They can be mounted on a 35 mm (1.38 in) DIN rail or through the ﬁxing adapter (PLMP) with M4 screws.

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Installation and Connection

(a) 35 mm (1.38 in) DIN rail mounting (b) Secured with screws

Figure 3.1: (a) and (b) UC, UMC, EDU and UMCT mounting

NOTE!

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).

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Page 31

3.2 ELECTRICAL INSTALLATION

DANGER!

The following information serves as guidance for a correct installation. The applicable electrical installation regulations must also be followed.

DANGER!

Make sure the AC power supply is disconnected before beginning the connections.

I11 I12 I13 I14 I15 I16

XC1

USB

Connector

for the

HMI and

expansions

Installation and Connection

I11 I12 I13 I14 I15 I16 IC A1

T1 T2 E1 E2 PE

XC1

XC2

XC6

Figure 3.2: Control unit connections

XC1 terminal strip:

 Digital inputs – I11, I12, I13, I14, I15 and I16.

 24 Vdc output for the 24 Vdc digital inputs - IC.

 Power supply terminal A1.

XC2 terminal strip:

 Inputs T1 and T2 - PTC.

 Inputs E1 and E2 - earth leakage sensor (ELS).

 Conection to the protective earth - PE.

NOTE!

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.

XC2

XC6

A2 C1 O1 O2 C3 O3 C4 O4

ATTENTION!

Terminal strip XC2 pin PE must obligatorily be connected to a protective earth.

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Installation and Connection

XC6 terminal strip:

 Power supply terminal A2.

 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 of the operation mode, rated current of the motor, incorrect selection of the Current Measuring Unit (UMC) or Current/Voltage, Measuring Unit (UMCT), incorrect or improper supply source for the digital inputs, application of voltage on the terminals T1, T2, E1 and E2.

3.3 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.

 24 Vac and Vdc.

NOTE!

Check the nameplate on the product to know which model of the control unit was acquired:

 110 to 240 Vac/Vdc or 24 Vac/Vdc supply voltage.

3.4 POWER CABLES

The SRW 01 performs the protection of three-phase and single-phase loads.

The power cable wiring diagram is illustrated in the Figure 3.3 on page 3-4.

(a) Three-phase (b) Single-phase

Figure 3.3: (a) and (b) Three-phase and single-phase of the Current Measurement Unit (UMC) and Current/Voltage Measurement Unit

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Installation and Connection

ATTENTION!

It is essential that all motor supply conductors that cross the windows of the Current/Voltage Measurement Unit (UMCT) have the direction indicated in Figure 3.3 on page 3-4, seeing that the input terminals (power supply line) are identiﬁed as L1, L2 and L3 and the output terminals (motor) are identiﬁed as T1, T2 and T3.

When using the Current/Voltage Measurement Unit (UMCT), it is possible to monitor the voltage of the power supply line (power), even with the motor Off. Connect the terminals of the power supply L1, L2 and L3 (or L1 and L2, for single-phase loads) – after passing by the protection circuit (circuit breakers or fuses) – to the connection terminals L1, L2 and L3 (or L1 and L2, for single-phase loads) of the Current/Voltage Measurement Unit (UMCT). 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.

3.5 CURRENT MEASUREMENT UNIT (UMC) CONNECTION

The SRW 01 has 6 current measurement units:

 UMC1 (0.5 – 5 A)

 UMC2 (1.25 – 12.5 A)

 UMC3 (2.5 – 25 A)

 UMC4 (12.5 – 125 A)

 UMC5 (42 – 420 A)

 UMC6 (84 – 840 A)

(*)

(*) For the 0.25 -2.5 A range the UMC1 (5 A) with 2 turns in the primary must be used, according to the Figure

3.4 on page 3-5.

Figure 3.4: 0.25 to 2.5 A current range connection - two turns in the UMC1

The Current Measurement Unit (UMC) or Current/Voltage Measurement Unit (UMCT) is connected to the Control Unit (UC) by means of a ribbon-cable with a maximum length of two meters (check the cable models in the catalog available for download on the website www.weg.net).

The Current Measurement Unit (UMC) measures the current of the 3 motor phases. The RMS current value of each phase is transmitted digitally to the Control Unit (UC).

The Control Unit (UC) signalizes through the status led and the “E0085” HMI message, if the Current Measurement Unit (UMC) or Current/Voltage Measurement Unit (UMCT) is not communicating with the UC.

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Installation and Connection

NOTE!

The Control Unit (UC) reports value 0 (zero) for the reading of currents if the measured current is below 15 % of the rated current (P401 and/or P402). For measurements above 15 %, the bit 3 of the parameter P006 - Relay Status (binary) will present the value 1, indicating that the motor is running.

NOTE!

The Control Unit (UC) shows 0 (zero) for voltage, power factor (cos ϕ), energy consumption and powers, if the Current Measurement Unit (UMC) is used.

ATTENTION!

For applications with frequency inverters or similar equipments, the Current Measurement Unit (UMC) should be installed between the line and the inverter. Its installation at the frequency inverter output is not allowed if the fundamental output frequency is different from 50/60 Hz.

3.6 CONNECTION OF THE CURRENT/VOLTAGE MEASUREMENT UNIT (UMCT)

It is possible to use a Current/Voltage Measurement Unit (UMCT) instead of a Current 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)

(*)

 UMCT2 (1.25 – 12.5 A / 690 V)

 UMCT3 (2.5 – 25 A / 690 V)

 UMCT4 (12.5 – 125 A / 690 V)

 UMCT5 (42 -420 A / 690 V)

 UMCT6 (84 – 840 A / 690 V)

(*) For the 0.25 -2.5 A range the UMCT1 (5 A) with 2 turns in the primary must be used, according to the Figure

3.4 on page 3-5.

NOTE!

The True RMS L3-L1 voltage value is calculated from the True RMS voltage measurements of phases L1-L2 and L2-L3.

NOTE!

The Control Unit (UC) shows 0 (zero) for the voltage readings if the measured voltage in below 35 V.

ATTENTION!

The incorrect selection of the Current Measuring Unit (UMC) or Current/Voltage Measurement Unit (UMCT) using parameter P295 may result in the incorrect communication of the measured current value sent to the Control Unit (UC) and possible motor damages.

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Installation and Connection

3.7 EXTERNAL CURRENT TRANSFORMER (CT) USE

For applications with higher currents or that are out of the UMC/UMCT model range presented above, it is possible to use external current transformers (CTs), supplied by the user.

The CTs must have the same speciﬁcation, being installed separately, one for each motor phase, and have a suitable ratio for the current range. Additionally, the CT must be speciﬁed to be able to supply the VA (burden) according to the secondary current and cables length. They must be classiﬁed as protective CTs in order to withstand high currents during short intervals without saturating. Normally, they must withstand surges of 20 times the rated current and present an accuracy ≤ ± 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 to increase the number of primary turns by passing the CT secondary cables several times through the UMC/ UMCT window, according to the Figure 3.4 on page 3-5. The Figure 3.5 on page 3-7 presents a typical wiring diagram using external CTs.

I12

L1 TC1

TC2

TC3

L2 L3

T2 T3

SRW01 - UMC1

I11

SRW01 - CB

A2 C1

I13

I15 I16

I14

SRW01 - UC

O3 C4 O4

3 ~

Figure 3.5: Typical wiring diagram using external CTs

ATTENTION!

The incorrect selection of a current transformer and/or parameterization error at the Control Unit (UC) will result in an incorrect current calculation, which could cause incorrect indication and possible motor damages.

ATTENTION!

Change the external current transformer (CT) only with the system powered off. A CT secondary should never be open circuited while the CT primary circuit is energized.

NOTE!

Some parameters can be changed during the operation. However, there are others that can only be changed with a stopped motor, according to the quick parameter reference.

3.8 USB CONNECTION

The USB interface is used for monitoring, parameterization and programming of the relay through a PC with the WLP software.

Basic procedure for data transfer between PC and SRW 01:

1. Install the WLP software in the PC.

2. Connect the PC to the SRW 01 through the USB cable.

3. Switch on the SRW 01 and start the WLP software.

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Installation and Connection

4. Close the WLP software after ﬁnishing the data transfer between the PC and the SRW 01.

5. Disconnect the USB cable.

NOTE!

In order to get more information about the WLP software use, refer to the WLP manual, available for download on the website: www.weg.net.

3.9 CONNECTION OF THE CONTROL UNIT (UC) DIGITAL INPUTS

The Control Unit has 6 optically isolated digital inputs.

The digital inputs can be activated by applying 24 Vdc, available on the IC pin of XC1 connector, through an internal isolated power supply, as shown in Figure 3.6 on page 3-8 or through an external power supply of 24 Vdc, as shown in Figure 3.7 on page 3-9.

XC1

I12 I13

I11

Figure 3.6: 24 Vdc digital inputs activation

I14

I15 I16 IC

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)

Range: 0 = Invalid

1 = Invalid

Factory Setting:

2 = 24 Vdc 3 = 110 Vac

Proprieties: RO Description:

It indicates whether the digital inputs are 24 Vdc or 110 Vac.

3.9.2 Connection of an External Power Supply for the Digital Inputs (24 Vdc)

The 24 Vdc digital inputs can be activated by an external power supply. By using this external power supply the SRW 01 makes available only 5 digital inputs, because the power supply reference must be connected to the digital input I16, according to the Figure 3.7 on page 3-9.

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Page 37

Installation and Connection

24Vdc Power

Supply

XC1

I11 I12 I13 I14 I15 I16 IC A1

Figure 3.7: External 24 Vdc power supply connection

3.10 CONNECTION OF THE CONTROL UNIT (UC) DIGITAL OUTPUTS

The Control Unit (UC) presents 4 digital outputs, via relays, with the following internal wiring:

 Digital outputs O1 and O2 share the common terminal C1.

 Digital output O3 with common C3.

 Digital output O4 with common C4.

A2 C1 O1 O2 C3 O3 C4 O4

Figure 3.8: Digital output internal wiring diagram

NOTE!

When driving inductive loads (contactors, relays, solenoids, etc.), overvoltage suppressors must be connected in parallel with the coils of those devices. The connection must be done directly to the coil terminals. RC ﬁlters must be used for AC power supply, and freewheel diodes in case of DC power supply.

3.11 EXPANSION DIGITAL UNIT (EDU) CONNECTION

The Expansion Digital Unit (SRW01-EDU) offers the option of increasing the number of digital inputs and outputs at the Control Unit (SRW01-UC). It has 6 digital inputs and 4 digital outputs. It is possible to use only one Expansion Digital Unit (EDU) with each Control Unit, totalizing 12 inputs and 8 outputs. The Expansion Digital Unit (EDU) digital inputs and outputs can be used to transfer any information to the system, to signalize the status of an external device, to indicate Error/Trip, alarm or fault in the system etc.

The veriﬁcation of the presence (connection) of the Expansion Digital Unit (EDU) is only performed if parameter P294 is set to “1”, indicating the use of the EDU. If the Expansion Digital Unit (EDU) is present and the communication between both has been established, the Expansion Digital Unit (EDU) signalizes it through the status led in solid green.

If the Expansion Digital Unit is connected without the proper setting of parameter P294 or if the communication with the 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.

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Installation and Connection

P294 – Expansion Digital Unit (EDU)

Adjustable Range:

0 = EDU Not Used 1 = EDU Used

Factory Setting:

Proprieties: Sys, CFG Description:

It enable the use of Expansion Digital Unit (EDU).

Once the communication between the Control Unit (UC) and the Expansion Digital Unit (EDU) has been established, if an interruption in the communication between the devices occurs, the action programmed by the user in the parameter P312 will take place.

P312 – Action for EDU Communication Error

Adjustable Range:

Proprieties: Sys, rw Description:

This parameter allows selecting witch action must be executed by the relay if a communication error with the

Expansion Digital Unit (EDU) is detected.

0 = It Only Indicates Fault 1 = It Turns the Motor Off

Options Description

0 = It only indicates fault

1 = It turns the motor off

Table 3.1: Parameter P312 options

It only indicates a fault; it does not turn the motor off. It is necessary to execute the error reset to remove the indication

It turns the motor off, for the operation modes where this command exists. It is necessary to execute the error reset to remove the indication

Factory Setting:

NOTE!

Regardless of the action programmed in P312, if a communication loss between the Control Unit (UC) and the Expansion Digital Unit (EDU) occurs, all the Expansion Digital Unit (EDU) outputs are opened. After the communication is reestablished and a Control Unit (UC) reset command is performed, the Expansion Digital Unit (EDU) outputs operate again according to their conﬁguration.

NOTE!

For interlocking or operations considered critical and demanding fast response, it is recommended the use of the Control Unit (UC) inputs and outputs, because of delays in the Expansion Digital Unit (EDU) response.

3.12 CONNECTION OF THE EXPANSION DIGITAL UNIT (EDU) DIGITAL INPUTS

There are two Expansion Digital Unit (EDU) models, one with 24 Vdc digital inputs and the other with 110 Vac digital inputs 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 and Figure 3.10 on page 3-11.

(*)

. Both models can be connected to the Control Unit (UC), regardless of the Control Unit type of

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Installation and Connection

24 Vdc

Power

Supply

XC9

Figure 3.9: Activation of 24 Vdc digital inputs Figure 3.10: Activation of 110 Vac digital inputs

I6 I7

I10

I5 I6 I7 I8

110 Vac

Power Supply

I9 I10 EC

XC9

NOTE! (*) According to the acquired model.

3.13 CONNECTION OF THE EXPANSION DIGITAL UNIT (EDU) DIGITAL OUTPUTS

The Expansion Digital Unit (EDU) provides 4 relay digital outputs with the following internal connection diagram:

 Digital output O5 with common C5.

 Digital output O6 with common C6.

 Digital output O7 with common C7.

 Digital output O8 with common C8.

Figure 3.11: Digital output internal wiring diagram

NOTE!

C5 C7 C8C6O5 O7 O8O6

3.14 CONNECTION OF THE EARTH LEAKAGE SENSOR (ELS)

The earth leakage sensor is installed separately from the Control Unit. It can be installed in any position and it is connected to the Control Unit by a pair of braided and/or shielded wires, connected to the sensor terminals and to terminals 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).

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Installation and Connection

The EL1(Ø 35 mm) earth leakage sensor can be assembled with M3 screws or directly on a DIN 35 mm rail using the adapter accessory.

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.

Specify the earth leakage sensor as a function of the diameter of the cables that pass through the window; choose the sensor with the smallest opening.

It is recommended to use the equivalence ratio between the Current Measurement Units (UMCT) or Current Voltage Measurement Units (UMCT) and the earth leakage sensors (ELS) for installation as shown on the Table

3.2 on page 3-12.

Table 3.2: Equivalence between UMC/UMCT and ELS

Current Measurement Unit (UMC) or Current/

Voltage Measurement Unit (UMCT)

SRW01-UMC0/UMCT0 SRW01-UMC1/UMCT1 SRW01-UMC2/UMCT2 SRW01-UMC3/UMCT3

SRW01-UMC4/UMCT4 SRW01-EL2

SRW01-UMC5/UMCT5 SRW01-EL3

SRW01-UMC6/UMCT6 SRW01-EL4

Earth Leakage Sensor (ELS)

SRW01-EL1

NOTE!

If the measured earth leakage current is inferior to 50 mA, the value 0 (zero) will be indicated on parameters P036 and P037.

3.15 SHORT CIRCUIT RANGES (UL)

The 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. (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

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.

The parameters are indicated on the display through the letter “P”, followed by a number.

E.g.: P0202, where 202 = the parameter number. There is a numerical value associated to each parameter (parameter content), which corresponds to the selected option among those available for that parameter.

The parameter values deﬁne the SRW 01 programming or a variable value (e.g. nominal current). In order to program the SRW 01 the parameter contents must be changed. The HMI can be connected and disconnected without the need of switching off the SRW 01.

The following functions are viable through the HMI:

 Monitoring.

 Parameterization.

 Motor operation.

 Copy function.

The HMI presents the following characteristics:

 Display with 5 digits.

 Keypad with 8 keys.

 Serial communication.

 Panel door mounting.

 Internal memory.

(a) Vertical mounting (HMI) (b) Horizontal Mounting (HMI2)

Figure 4.1: (a) and (b) Human-Machine Interface of SRW 01

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HMI

4.1 KEYS

: It increases the parameter number or its contents. The contents of the parameter will be saved in the

E2PROM after pressing the key.

: It decreases the parameter number or its contents. The contents of the parameter will be saved in the

E2PROM after pressing the key.

: If the parameter number is being showed (‘Pxxxx’):

- It changes the exhibition mode for contents.

If the parameter contents are being showed:

- It veriﬁes if it is a writing parameter and if the value has been modiﬁed. In afﬁrmative case it saves the contents in the E2PROM.

- 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.

: 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 stop the motor.

: It selects the motor speed direction when the SRW 01 is programmed for HMI as local command (P229 = 1) or for HMI as remote command (P232 = 1), and the operation mode selected in P202 is Reversing Starter (P202 = 3). It selects high speed (H) or low speed (L) if the operation mode is Dahlander/Pole Changing (P202 = 5 or 6).

: This key works as Error/Trip reset when the parameter P601 = 2. With this conﬁguration the front reset button is disabled. This key is also used to return to the reading parameter conﬁgured through the parameter P205.

: If the Local/Remote selection source is the HMI, P220 = 2 or 3, the SRW 01 operation will be changed between Local and Remote by pressing this key. In Local mode the green led is on, in Remote mode the red led is on.

NOTE!

The Direction of Rotation and Local/Remote leds of the HMI ﬂash when current ﬂowing through the motor is detected.

4.2 HMI LOCAL MESSAGES

E0031: Without communication with the UC. ErCrC: The communication with the UC is presenting faults. Copy: The HMI is storing data into its internal memory. Read: The HMI is sending data to the UC.

4.3 PARAMETERIZATION

In order to change a parameter, the , key must be pressed, making it possible the visualization of the parameter number. By using the increase and decrease keys the desired parameter must be selected.

Once the desired parameter has been selected, the key must be pressed in order to show its content. Then using the increase and decrease skeys the desired value for the parameter must selected, and the key must be pressed.

4-2 | SRW 01

Page 43

NOTE!

In order to be able to change the content of the parameters, it is necessary to release the access by setting the correct password in P000. Otherwise, when the value of a parameter is changed the message “Passd” will appear on the HMI.

The HMI initializes presenting the value of the reading parameter deﬁned in the parameter P205.

P205 – Reading Parameter Selection

HMI

Adjustable Range:

1 = P002 (% IN Current) 2 = P003 (True RMS Current)

Factory Setting:

3 = P005 (Line Frequency) 4 = P006 (Relay Status (binary)) 5 = Deﬁned by the user

Proprieties: Sys, rw Description:

It selects the default reading presented by the HMI.

The factory default for the parameter P205 is the content of P003 (average current value of the three phases).

Setting P205 = 5 allows the user to select any parameter in the range from P001 to P1109, through the parameter P206.

P206 – User Selection

Adjustable Range:

Proprieties: Sys, rw Description:

It is used to select the parameter whose content has to be showed on the HMI. It is available only if P205 = 5.

1 to 1109 Factory

Setting:

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 Type Property

Read-only RO

System

User Reading/Writing rw

(1) The value of the Reading/Writing parameter of the System Group is updated when the key is pressed.

(2) The value of the Reading/Writing parameter of the User Group is updated instantaneously by the HMI, even before pressing the key.

Reading/Writing

CFG rw

(1)

(2)

4.5 PASSWORD FOR PARAMETERIZATION

The factory default value for the password is 5. The parameter P200 allows selecting the status of the password

(active or inactive), and makes its change possible.

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HMI

The procedure to change the password is described next:

1 – Set the parameter P200 = 2.

2 – The parameter P000 is accessed automatically.

3 – Set the new password value using the increase and decrease keys.

4 – Once the new password value has been adjusted, press the key again.

5 – The parameter P200 is then adjusted automatically to 1 (active password).

P000 – Access to the Parameters

Adjustable Range:

Proprieties: rw Description:

It releases, by means of a password, the access for changing the content of the parameters.

0 to 999 Factory

P200 – Password Status

Adjustable Range:

Propriedades: Sys, rw

Description:

It allows changing the value of the password and/or set its status, conﬁguring it as active or inactive.

NOTE!

In order to disable the password, set the parameter P000 = 5 and the parameter P200 = 0.

0 = Inactive 1 = Active 2 = Change Password

4.6 COPY FUNCTION

In order to perform the copy function, it is necessary to use the HMI.

Setting:

Factory Setting:

The SRW 01 copy function allows the recording of up to 3 parameter sets and/or 3 user programs.

It presents two procedures:

1. Upload dos dados: SRW 01 para a HMI.

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.

It is understood that “different hardware” is the model of the control unit with PTC protection (SRW01-PTC), earth leakage (SRW01-RCD) or Ethernet versions (SRW01-ETH) and that “different version” are those that are different in “x” or “y” supposing that the number of the ﬁrmware versions are described as Vx.yz.

When downloading the parameters (P500), if there is a conﬂict between the different hardware and/or ﬁrmware versions, the control unit will signal fault on the status led and a “E0010” message on the HMI. Hardware and/or ﬁrmware differences are also veriﬁed when downloading the user program (P501).

4-4 | SRW 01

Page 45

HMI

NOTE!

The procedure of data download will not be performed, if the control unit (UC) indentiﬁes the inexistence of a user program or parameterization saved on the HMI. The upload of a user program will not be performed if there is not a program saved on the control unit (UC). In this case, the message “Null” will ﬂash on the HMI for two seconds.

ATTENTION!

Only execute the copy function with the motor disconnected from the power line. Make sure the data download is done from the correct memory position, P500/501 = 4, 5 or 6.

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)

1. Connect the HMI to the SRW 01 from which the parameters have to be copied (SRW 01-A).

2. In order to save the parameters or user program, the storing position must be selected at parameter P500 (save

bank 1, 2 or 3) or P501 (save applicative 1, 2 or 3). Press the key. During the recording the message “copy”

is presented on the HMI. P500 or P501 get automatically back to 0 (no function) when the transfer is ﬁnished.

3. Disconnect the HMI from the SRW 01-A.

4. Connect the same HMI to the SRW 01-B, to which the parameters or user program have to be copied.

5. In order to load the parameters or user program, the position where the data had been stored must be selected

at parameter P500 (load bank 1, 2 or 3) or P501 (load applicative 1, 2 or 3). Press the key. During the data

loading the message “read” is presented on the HMI. P500 or P501 get automatically back to 0 (no function) when

the transfer is ﬁnished.

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.

P500 – Parameter Upload/Download

Adjustable Range:

Proprieties: Sys, rw Description:

It selects the memory position available for saving or loading the SRW 01 parameters.

0 = No Function 1 = Save Bank 1 2 = Save Bank 2 3 = Save Bank 3 4 = Load Bank 1 5 = Load Bank 2 6 = Load Bank 3

Factory Setting:

SRW 01 | 4-5

Page 46

HMI

P501 – User Program Upload/Download

Adjustable Range:

Proprieties: Sys, rw Description:

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.

NOTE!

As long as the HMI is performing the parameter or user program upload/download procedure, it is not possible to operate it. During the upload the SRW 01 existing parameters and/or user programs remain unchanged.

0 = No Function 1 = Save Applicative 1 2 = Save Applicative 2 3 = Save Applicative 3 4 = Load Applicative 1 5 = Load Applicative 2 6 = Load Applicative 3

Factory Setting:

4-6 | SRW 01

Page 47

Parameterization

5 PARAMETERIZATION

The system parameters of the reading/writing type can be divided into two groups: control and protection.

The control group deﬁnes:

 Local/Remote selection.

 Local command selection.

 Remote command selection.

 Digital inputs and outputs.

 Operation mode.

 Motor configuration.

 Communication network configuration.

The protection group deﬁnes:

 Current imbalance configuration.

 Earth fault configuration.

 Phase loss (current) configuration.

 Overcurrent and undercurrent configuration.

 Frequency out of range configuration.

 PTC configuration.

 Overload configuration.

 Earth leakage configuration.

 External fault configuration.

 Configuration of motor phase sequence.

 Configuration of voltage unbalance.

 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

Parameterization

NOTE!

Make sure the purchased control unit (UC) model has those functionalities. Check the identiﬁcation label or the product warning label for the model of the purchased Control Unit (UC).

NOTE!

Protections by phase sequence, voltage unbalance, phase loss (voltage), overvoltage, undervoltage, overpower, underpower, power over factor and power under factor, only available when the Current/ Voltage Measurement Unit (UMCT) is used.

NOTE!

There are parameters that can be changed only with the motor deenergized. In an attempt to change those parameters with the motor on, the message “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

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the origin of the command for the Local/Remote operation selection.

If P220 = 4, 5, 9 or 10, the Local/Remote selection is done by the digital inputs, 0 = Local, 1 = Remote. P220 = 8 USB/Ladder – The Local/Remote selection is done by the monitoring dialog box “control/signals”, via USB, or by the Ladder user program, via the system bit marker SX3006 (refer to the WLP manual).

Example: P220 = 2 – the HMI key does the selection and the SRW initiates in Local mode.

0 = Always Local 1 = Always Remote 2 = HMI key (LOC) 3 = HMI key (REM) 4 = Digital Input I13 5 = Digital Input I14 6 = Fieldbus (LOC) 7 = Fieldbus (REM) 8 = USB/Ladder 9 = Digital Input I15 10 = Digital Input I16

Factory Setting:

5.2 LOCAL/REMOTE COMMAND

If the Local mode is selected, the origin of the local commands must be deﬁned at the parameter P229.

P229 – Local Command Selection

Adjustable Range:

Proprieties: Sys, rw

5-2 | SRW 01

0 = Ix 1 = HMI 2 = USB/Ladder

Factory Setting:

Page 49

Parameterization

Description:

It deﬁnes the origin of the Local commands.

If the remote mode is selected, the origin of the Remote commands must be deﬁned at the parameter P232.

P315 – Action in the Local/Remote Transition

Adjustable Range:

Proprieties: Sys, CFG Description:

In the transition from Local to Remote control, or vice-versa, it is possible to conﬁgure the Control Unit (UC) so that, according to the selected operation mode (P202), it disables the digital outputs(s), stopping the motor.

NOTE!

The stop motor command will only be executed if current is ﬂowing through the motor (bit 3 of parameter P006 = 1).

0 = Keep Motor Status 1 = The Motor is Turned Off

Factory Setting:

P232 – Remote Command Selection

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the origin of the Remote commands.

If P229 or P232 = 0, then the Local/Remote commands (start, stop, reversion etc) are controlled by the I11 to I16 digital inputs, according to the operation mode selected in P202.

0 = Ix 1 = HMI 2 = USB/Ladder 3 = Fieldbus

Factory Setting:

If P229 or P232 = 1, then the Local/Remote commands (start, stop, reversion etc) are controlled by the HMI ,

and keys.

If P229 or P232 = 2 USB/Ladder, then the Local/Remote commands (start, stop, reversion etc) are sent by the monitoring dialog “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).

P233 – Retentive or Impulsive Control (Fieldbus)

Adjustable Range:

Proprieties: Sys, CFG Description:

If set P232 = 3, deﬁning that the remote controls are controlled by the master of the industrial network (refer to the communication network manual), the control type can be selected as:

 Retentive (behavior similar to a switch).

 Impulsive (behavior similar to pushbutton).

0 = Retentive (Switch) 1 = Impulsive (Pushbutton)

Factory Setting:

SRW 01 | 5-3

Page 50

Parameterization

Table 5.1: Behavior logic of the control

Control Type Behavior logic of the control

 After detecting a start control through the start control bit of the control word (or system marker),

Retentive (switch)

Impulsive (pushbutton)

NOTE!

The “Reset” button in the monitoring dialog box “control/signals” works always, regardless of the P229, P232 or P601 programming.

NOTE!

The user must select different command options at P229 and P232. If local and Remote commands are selected as digital inputs (Ix), then the Control Unit (UC) signalizes it through the status led and through the HMI E0025 error message.

If the user selects Local or Remote commands using the HMI, P229 or P232 = 1, then the action for an HMI communication error can be selected through the parameter P311.

transition of the signal (0 → 1) by the rising edge, the Control Unit (UC), according to the operation mode (P202), enables the digital output(s), driving the motor

 The motor remains driven, while the start control bit of the control word (or system marker) is on

level 1 (active); if a transition occurs (1 → 0), a stop control will be set

 After detecting a start control through the start bit control of the control word (or system marker),

transition of the signal (0 → 1) by the rising edge, the Control Unit, (UC) according to the operation mode (P202), enables the digital output(s), driving the motor

 After detecting a stop control, stop control bit of the control word (or system marker), transition of the

signal (1 → 0) by the rising edge, the Control Unit (UC) disables the digital output(s), stopping the motor

P311 – Action for HMI Communication Error

Adjustable Range:

Proprieties: Sys, rw Description:

This parameter allows selecting which action must be executed by the relay in the event of HMI communication error detection.

Options Description

0 = it only indicates fault

1 = It turns the motor off

NOTE!

If the HMI is not communicating with the Control Unit (UC), the Control Unit signalizes this condition through the status led and through the HMI E0031 message. The error code E0031 is only stored in the 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.

0 = It Only Indicates Fault 1 = It Turns the Motor Off

Table 5.2: Parameter P311 options

It only indicates a fault; it does not turn the motor off. If the communication is reestablished and the relay is not in Trip or error status, the indication is automatically removed from the display. If the relay is in Trip or error status, then it is necessary to execute the error reset to remove the indication

It turns the motor off, for the operation modes where this command exists. It is necessary to execute the error reset to remove the indication.

Factory Setting:

5-4 | SRW 01

Page 51

Parameterization

If P229 or P232 = 0, deﬁning that the local or remote commands are controlled by digital inputs, the control type can be selected as:

 Two wires (switch).

 Three wires (pushbutton).

Table 5.3: Behavior logic of digital inputs

Type of Control Behavior logic of digital inputs

 After detecting a start control, transition of the signal (0 → 1), by the rising edge

Two wires (switch)

Three wires (pushbutton)

of the digital input, the Control Unit according to the operation mode (P202), ables the digital output(s), driving the motor

 The motor keeps drive while the digital input signal is on level 1 (active). If there

is a signal transition to level 0, a stop control will be set

 After detecting a start control, transition of the signal (0 → 1), by the rising edge

of the digital input, the Control Unit according to the operation mode (P202), ables the digital output(s), driving the motor

 After detecting a stop control, digital input I11 on level 0, the Control Unit disables

the digital output (s), stopping the motor

P230 – Two or Three-Wire Command (Ix)

Adjustable Range:

0 = Two Wires (Switch) 1 = Three Wires (Pushbutton)

Factory Setting:

Proprieties: Sys, CFG Description:

Select the type of control.

NOTE!

The control logic assigned to the digital inputs I11 to I16 and the digital outputs O1 to O4, is described in Section 5.4 OPERATION MODES on page 5-10 of this manual, for each previously deﬁned operation mode (P202).

NOTE!

The Off control logic for three wires (pushbuttons) can be changed from active on level 0, normally closed (NC) to active on level 1, normally open (NO), using parameter P231.

P231 – Stop Logic with Three-Wire Command (Ix)

Adjustable Range:

Proprieties: Sys, CFG Description:

It allows the user to deﬁne the stop command logic when either Local or Remote mode commands have been selected for digital inputs, P229 or P232 = 0, and with the Three-Wire (pushbuttons) control logic, P230 = 1, according to the operation mode (P202) selected.

0 = Digital Input I11 (NC) 1 = Digital Input I11 (NO)

Factory Setting:

ATTENTION!

The command to stop the motor through the digital inputs when either in Local or in Remote mode, 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

Parameterization

5.3 DIGITAL INPUTS AND OUTPUTS

The Control Unit (UC) presents 6 digital inputs (I11 to I16), activated with either 24 Vdc. With the use of the Expansion Digital Unit (EDU) it is possible to add 6 more digital inputs to the system (I5 to I10), which can be activated with external voltage of either 24 Vdc or 110 Vac (according to the acquired model).

For the activation of the Control Unit (UC) 24 Vdc digital inputs, the internal isolated 24 Vdc power supply can be used, or an external 24 Vdc power supply. The connection diagram is presented in the Section 3.9

CONNECTION OF THE CONTROL UNIT (UC) DIGITAL INPUTS on page 3-8 of this manual. For the activation of

the Expansion Digital Unit (EDU) digital inputs an external power supply of either 24 Vdc or 110 Vac (according to the acquired model) must be used. The connection diagram is presented in the Section 3.12 CONNECTION OF

THE EXPANSION DIGITAL UNIT (EDU) DIGITAL INPUTS on page 3-10 of this manual.

The Control Unit (UC) has 4 relay digital outputs (O1 to O4), which are conﬁgured through the parameters P277, P278, P279 and P280. The connection diagram is presented in the Section 3.10 CONNECTION OF THE

CONTROL UNIT (UC) DIGITAL OUTPUTS on page 3-9 of this manual.

The Expansion Digital Unit (EDU) has 4 relay digital outputs (O5 to O8), which are conﬁgured through the parameters P281, P282, P283 and P284. The connection diagram is presented in the Section 3.13 CONNECTION OF THE

EXPANSION DIGITAL UNIT (EDU) DIGITAL OUTPUTS on page 3-11 of this manual.

P277 – Digital Output O1 Function

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

P284 – Digital Output O8 Function

Parameterization

Adjustable Range:

Proprieties: Sys, CFG Description:

They deﬁne the relay output control origin.

0 = Internal Use 1 = Ladder 2 = Fieldbus 3 = Alarm/Fault Signal (NO) 4 = Trip/Error Signal (NO) 5 = Trip/Error Signal (NC) 6 = Check Back Signal (NO) 7 = Trip Signal PTC (NO) 8 = Trip Signal Out of Frequency (NO) 9 = Trip Signal Undercurrent (NO) 10 = Trip Signal Overcurrent (NO) 11 = Trip Signal Phase Loss (current) (NO) 12 = Trip Signal Current Imbalance (NO) 13 = Trip Signal Earth Fault (NO) 14 = Trip Signal Overload (NO) 15 = Trip Signal Earth Leakage (NO) 16 = Trip Signal External Fault (NO) 17 = Trip Signal Trip Test (NO) 18 = Trip Signal Phase Sequence (NO) 19 = Trip Signal Voltage Unbalance (NO) 20 = Trip Signal Phase Loss (voltage) (NO) 21 = Trip Signal Overvoltage (NO) 22 = Trip Signal Undervoltage (NO) 23 = Trip Signal Underpower (NO) 24 = Trip Signal Overpower (NO) 25 = Trip Signal Power Under Factor (NO) 26 = Trip Signal Power Over Factor (NO)

Factory Setting:

Internal Use: it is used according to selected operation mode (P202). It indicates that for this operation mode the digital output has a predeﬁned function.

Ladder: it is used by the user program implemented in Ladder. Fieldbus: it is used directly by the industrial network master. Alarm/Fault (NO) Signal: it is used to signal alarm or fault. In case of alarm or fault the output is closed,

remaining like this until the cause of failure is not present anymore and the reset control is set. Trip/Error (NO) Signal: it is used to signal Trip or error. In case of Trip or error (Ex. No communication with the Current Measuring Unit) the output is closed, remaining this until the cause of the failure is not present anymore and the reset control is set. Trip/Error (NC) Signal: it is used to signal Trip or error. In case of Trip or error (Ex. No communication with the Current Measuring Unit) the output is closed, remaining like this until the cause of the failure is not present anymore and the reset control is set. Check Back (NO) Signal: is used to indicate the check back signal state, according to the selection of the check back type (P208) and conﬁguration of the operating mode (P202). If the check back type is conﬁgured for motor current (P208 = 0), the digital output is activated as soon as the reading of the motor current is identiﬁed. If P208 = 1, the digital output is activated whenever the digital input deﬁned to be the check back signal is activated. For P208 = 2, the digital output is activated whenever the output(s) conﬁgured for internal use is activated. 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

Parameterization

NOTE!

The user can change the value of the parameter P277, P278, P279 or P280 according to the Table 5.4

on page 5-8. If the user does not respect the output availability for each operation mode an error will

be generated and the control unit (UC) will signalize through the status led and via the message “E0024” on the HMI.

Operation Mode Output 1 – O1 Output 2 – O2 Output 3 – O3 Output 4 – O4

Transparent Free Free Free Free

Overload Relay Internal use Internal use Free Free

Direct Starter Internal use Free Free Free

Reversing Starter Internal use Internal use Free Free

Star/Delta Starter Internal use Internal use Internal use Free

Dahlander Starter Internal use Internal use Internal use Free

Pole Changing Starter Internal use Internal use Free Free

PLC Free Free Free Free

NOTE!

Changing the operation mode (P202) also changes the function of the Unit Control (UC) digital inputs and outputs. The factory setting for the Control Unit (UC) digital outputs that are not predeﬁned (internal use) is Ladder. For more information, refer to the Section 5.4 OPERATION MODES on page 5-10 of this manual.

Table 5.4: Digital output availability

NOTE!

Only one Expansion Digital Unit (EDU) can be used with each Control Unit (UC). The factory setting for the Expansion Digital Unit (EDU) digital outputs (P281 to P284) is Ladder and is not modiﬁed by changing the operation mode, P202, different from what happens with the Control Unit (UC) outputs.

NOTE!

If a communication loss between the Control Unit (UC) and the Expansion Digital Unit (EDU) occurs, all the Expansion Digital Unit (EDU) outputs are opened. After the communication is reestablished and a Control Unit (UC) reset command is performed, the Expansion Digital Unit (EDU) outputs operate again according to their conﬁguration. If the communication is reestablished and the errors are not reset, the digital outputs of the Expansion Digital Unit (EDU) will remain open; however, it is possible to check the state of the digital

inputs using parameter P086.

The parameters P012 and P013 present the status of the Control Unit (UC) digital inputs and outputs, respectively.

P012 – Digital Input I11 to I16 Status

Adjustable Range:

Proprieties: RO Description:

It monitors the status of the Control Unit (UC) digital inputs.

0 to 63 Factory

Setting:

E.g.: P012 = 12 = 1100b. It means that the digital inputs I13 and I14 are actuated.

5-8 | SRW 01

Page 55

P013 – Digital Output O1 to O4 Status

Parameterization

Adjustable Range:

Proprieties: RO Description:

It monitors the status of the Control Unit (UC) digital outputs.

E.g.: P013 = 12 = 1100b. It means that the digital outputs O3 and O4 are activated.

The parameters P086 and P087 present the status of the Expansion Digital Unit (EDU) digital inputs and outputs, respectively.

bit 0 = O1 bit 1 = O2 bit 2 = O3 bit 3 = O4

Factory Setting:

P086 – Digital Inputs I5 to I10 Status

Adjustable Range:

Proprieties: RO Description:

It monitors the status of the Expansion Digital Unit (EDU) digital inputs.

E.g.: P086 = 42 = 101010b. It means that the digital inputs I6, I8 and I10 are actuated.

0 to 63 Factory

Setting:

P087 – Digital Outputs O5 to O8 Status

Adjustable Range:

Proprieties: RO Description:

It monitors the status of the Expansion Digital Unit (EDU) digital outputs.

E.g., P087 = 10 = 1010b. It means that the digital outputs O5 and O7 are activated.

NOTE!

The contents of the parameters P013 and P087 represent a binary number where each bit corresponds to one logic state. Its content is showed as binary on the HMI. The content of P012 and P086 are showed in decimal.

NOTE!

If a communication loss between the Control Unit (UC) and the Expansion Digital Unit (EDU) occurs, the status of the Expansion Digital Unit (EDU) digital inputs and outputs informed at the parameters P086 and P087 will be 0 (zero). After the communication is reestablished, before a Control Unit (UC) reset command is performed, it is possible to verify the status of the Expansion Digital Unit (EDU) digital inputs through the parameter P086, and the status of the outputs informed through the parameter P087 remains 0 (zero).

bit 0 = O5 bit 1 = O6 bit 2 = O7 bit 3 = O8

Factory Setting:

SRW 01 | 5-9

Page 56

Parameterization

5.4 OPERATION MODES

The SRW 01 presents 8 operation modes. The operation mode is selected through the parameter P202.

P202 – Operation Mode

Adjustable Range:

Proprieties: Sys, CFG Description:

It is the selection of the SRW 01 operation mode.

The functions of the Control Unit inputs and outputs are conﬁgured automatically according to the selected operation mode, deﬁning in a fast and simple manner the wiring between pushbuttons, contactors and the 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.

All the operation modes, except PLC, allow the motor monitoring.

ATTENTION!

It is only possible to change the parameter P202 with the motor deenergized.

0 = Transparent 1 = Overload Relay 2 = Direct Starter 3 = Reversing Starter 4 = Star/Delta Starter 5 = Dahlander Starter 6 = Pole Changing Starter 7 = PLC

Factory Setting:

NOTE!

The operation mode change (P202) modiﬁes the functions of the Control Unit digital inputs and outputs.

NOTE!

The command functions (ON/OFF), preset for the digital inputs in each operating mode, except for Overload, PLC and Transparent mode, can be modiﬁed by means of the system bit markers, SX3001 (OFF), SX3002 (Direct ON/High Speed) and SX3003 (Reverse ON/Low Speed). Use those markers on the Ladder user’s program and conﬁgure the local command selection (P229) or remote command (P232) for value 2 (USB/Ladder).

NOTE!

All operation modes allows the user to develop its own application using the WLP software ladder language. The maximum allowed program size is 32 kB.

5.4.1 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. The digital inputs that can be used as check back depend on the operation mode (P202). Consult the following connection schemes.

5-10 | SRW 01

Page 57

P208 – Check Back Type

Parameterization

Adjustable Range:

Proprieties: Sys, CFG Description:

Deﬁne the check back of the switch on/off control of the motor.

NOTE!

Parameter P208 conﬁgured for simulation (P208 = 2) does not monitor the switch On/Off control of the motor. Therefore, it must be used only for testing. If conﬁgured for digital input, P208 = 1, it must be veriﬁed what operation mode (P202) and what digital input for that operation mode has the Check Back function. If adjusted for motor current, P208 = 0, the digital input preconﬁgured for the Check Back function becomes free for the user, and can be used to cause an external fault, for instance (refer to the Item 5.7.2 External Fault on page 5-33 ).

0 = Motor Current 1 = Digital Input Ix 2 = Simulation

Factory Setting:

P209 – Execution Time

Adjustable Range:

Proprieties: Sys, CFG Description:

It deﬁnes the maximum waiting time of the check back signal to assure the setting of the on and off controls.

0.1 to 99.0 s Factory

Setting:

0.5 s

If the Control Unit identiﬁes an on control and does not receive 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 “E0078” on the HMI.

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

Parameterization

P211 – Check Back Time

Adjustable Range:

0.1 to 99.0 s Factory Setting:

0.5 s

Proprieties: Sys, CFG Description:

It deﬁnes the waiting time for the check back signal to go back to its normal working state in the case of the change of state without the suitable control for change.

The Control Unit monitors the check back signal continuously. If it changes without the corresponding on/off control, it will wait until for it to go back to the normal state during the maximum time set on P211.

If after having conﬁrmed the setting of the stop control the Control Unit identiﬁes the change of state of the check back signal without the suitable on control, an error will be generated and the control unit will send out a signal through the status led and message “E0080” on the HMI.

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.

Start

Stop

Imotor / Aux. Ix

Error

Reset

Check Back

P209 P211 P211 P211P209 P209P209 P209 P209

Figure 5.1: Diagram of operation of the Check Back signal veriﬁcation

E78

E79 E80

E81

5.4.2 Transparent Mode

The Transparent mode allows the user to develop its own application using the WLP software ladder language. The maximum allowed program size is 32 kB.

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

Table 5.5: Conﬁguration of the digital inputs and outputs for the Transparent operation mode

Digital Inputs /Outputs Function

I11 Free

I12 Free

I13 Free

I14 Free

I15 Free

I16 Free

O1 Ladder

O2 Ladder

O3 Ladder

O4 Ladder

ATTENTION!

If either error or Trip occurs in the Transparent mode, the Control Unit (UC) will not automatically Switch Off its outputs. Protections must be programmed by the user with the error or Trip bits in the Ladder logic of the Control Unit (UC).

5.4.2.1 Connection Diagram – Transparent Mode

Parameterization

The scheme on Figure 5.2 on page 5-13 shows an example of the use of the Control Unit (UC) on the Transparent operation mode with drive through the digital inputs at 24 Vdc, where on the Ladder programming digital input I11 turns the motor on/off, digital input I12 is used as a Check Back signal and digital output O1 drives the motor.

R/L1 S/L2 T/L3

SRW01-UMC

3 ~

SRW01-UC

SRW01-CB

110...240 VAC/VDC 50/60Hz R/L1

C1 C3

01 03 0402

A1ICI16I15I14I13I12I11

Figure 5.2: Connection scheme for the Transparent operation mode using digital inputs at 24 Vdc

5.4.3 Overload Relay

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

Parameterization

In case of a Trip event, the NC output opens and the NO closes. The NC output must be used in series with the motor starting contactor coil, in order to switch it off in case of a Trip. The NO output, however, can be used to activate an alarm or an indica tion lamp.

Digital inputs and outputs are conﬁgured as per Table 5.6 on page 5-14.

Table 5.6: Conﬁguration of the digital inputs and outputs for Overload Relay operation mode

Digital Inputs /Outputs Function

I11 Free

I12 Free

I13 Free

I14 Free

I15 Free

I16 Free

O1 Trip - NA

O2 Trip - NF

O3 Ladder

O4 Ladder

5.4.3.1 Connection Diagram – Overload Relay

The scheme on Figure 5.3 on page 5-14 shows an example of the use of the Control Unit on the Overload Relay operation mode where the digital inputs I11 to I16 driven at 24 Vdc and the digital outputs O3 and O4 can be used according to the user’s needs.

R/L1 S/L2

T/L3

SRW01-UMC

3 ~

SRW01-UC

SRW01-CB

110...240 VAC/VDC 50/60Hz R/L1

S1 S2 S3 S4 S5S0

C1 C3 C401 03 0402

A1ICI16I15I14I13I12I11

Figure 5.3: Connection scheme for the Overload Relay operation mode using digital inputs at 24 Vdc

5.4.4 Direct Starter

In this mode a Direct on Line Starter for single-phase or three-phase motors is conﬁgured, where the digital output 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

Parameterization

For the Control Unit (UC) connection diagram presented in the Item 5.4.4.1 Connection Diagram - Direct Starter

on page 5-15, the digital inputs and outputs are conﬁgured according to the Table 5.7 on page 5-15.

Table 5.7: Conﬁguration of the digital inputs and outputs for the Direct Starting operation mode

Function

Local/Remote Commands using Digital Inputs

Digital Inputs/Outputs

I11 Stop pushbutton Free

I12 Start pushbutton On/Off switch

(*)

I13

I14 Free

I15 Free

I16 Free

O1 Contactor operation

O2 Ladder

O3 Ladder

O4 Ladder

(*) Adjust P208 according to the application.

Control Logic

3 wires (P230 = 1)

(Pushbuttons)

Control Logic

2 wires (P230 = 0)

(Switch)

Check Back

NOTE!

In the example above, the Check Back signal was conﬁgured for digital input, P208 = 1. The factory setting is Check Back by motor current, P208 = 0. If P208 = 0, then the digital input I3 becomes free for the user.

5.4.4.1 Connection Diagram – Direct Starter

The scheme on Figure 5.4 on page 5-15 shows an example of the use of the Control Unit (UC) on the Direct Starting operation mode with drive through the digital inputs (P229 or P232 = 0) at 24 Vdc using control logic of control with three wires (pushbuttons) (P230 = 1).

R/L1 S/L2 T/L3

SRW01-UMC

SRW01-UC

SRW01-CB

110...240 VAC/VDC 50/60Hz R/L1

A1ICI16I15I14I13I12I11

C1 C3 C401 03 0402

3 ~

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

Parameterization

The modiﬁcations of the scheme for drive through the digital inputs (P229 or P232 = 0) at 24 Vdc, using two wires (switch) control logic (P230 = 0) are shown on Figure 5.5 on page 5-16.

110...240 VAC/VDC 50/60 Hz R/L1

K1S0

A1ICI16I15I14I13I12I11

Figure 5.5: Detail modiﬁcation for drive using digital inputs at 24 Vdc and switch drive (P230 = 0)

5.4.4.2 Operation Diagram – Direct Starter

Start

Stop

O1 - K1

Trip

Reset

Check Back

Imotor / Aux. I13

Figure 5.6: Operation diagram for the Direct Starter operation mode

5.4.5 Reversing Starter

In this mode a Reversing Starter for three-phase motors is conﬁgured. The digital outputs O1 and O2 are reserved for the operation of the motor starting contactors (internal use). The other digital outputs can be used according to the user’s needs (free).

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

Parameterization

Table 5.8: Conﬁguration of the digital inputs and outputs for the Reverter Starting operation mode

Function

Digital Inputs/Outputs

I11 Stop pushbutton Free

I12 Direct on button Direct on/off switch

I13 Reverse on button Reverse on/off switch

(*)

I14

I15 Free

I16 Free

O1 Forward contactor operation

O2 Reverse contactor operation

O3 Ladder

O4 Ladder

(*) Adjust P208 according to the application.

NOTE!

Local/Remote Commands using Digital Inputs

Control Logic

3 wires (P230 = 1)

(Pushbuttons)

Check Back

Control Logic

2 wires (P230 = 0)

(Switch)

NOTE!

It is possible to make the motor reversion in two ways:

 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.

P212 – Motor Transition Time

Adjustable Range:

Proprieties: Sys, CFG Description:

It deﬁned the Transition time between the switching of the start contactors of the motor. Used in the change of direction on the Reverter Starting mode (P202 = 3), in the conversion from star to delta on the Star-Delta starting mode (P202 = 4) and in the change of speed for the Dahlander Starting (P202 = 5) and Two Windings (P202 = 6) modes.

0.01 to 99.00 s Factory

Setting:

0.05 s

5.4.5.1 Connection Diagram – Reversing Starter

The scheme on Figure 5.7 on page 5-18 shows an example of the use of the 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

Parameterization

R/L1

S/L2 T/L3

3 3

5 5

1 1

K1 K2

SRW01-UMC

Figure 5.7: Connection scheme for the Reverter Starting operation mode using digital inputs at 24 Vdc and driven by pushbuttons (P230 = 1)

4 4

6 6

2 2

SRW01-CB

3 ~

SRW01-UC

110...240 VAC/VDC 50/60Hz R/L1

S1 S2 K1 K2S0

C1 C3 C401 03 0402

K1 K2

A1ICI16I15I14I13I12I11

The modiﬁcations of the scheme for drive through the digital inputs (P229 or P232 = 0) at 24 Vdc, using two wires (switch) control logic (P230 = 0) is shown on Figure 5.8 on page 5-18.

110...240 VAC/VDC 50/60 Hz R/L1

Figure 5.8: Detail modiﬁcation for drive using digital inputs at 24 Vdc and switch drive (P230 = 0)

5.4.5.2 Operation Diagram – Reversing Starter

Start

Forward

Start

Reverse

Stop

Motor Transition

Time

O1 - K1

O2 - K2

Trip

Reset

Check Back

Imotor / Aux. I14

Figure 5.9: Operation diagram for the Reversing Starter operation mode

A1ICI16I15I14I13I12I11

P212

5-18 | SRW 01

Page 65

Parameterization

5.4.6 Star-Delta Starter

In this mode a Star-Delta Starter for three-phase motors is conﬁgured. The digital outputs O1 and O3 are reserved (internal use) for the operation of the motor in the star connection and the digital outputs O1 and O2 for the operation of the motor in the delta connection. The digital outputs O4 can be used according to the user’s needs (free).

In case of a Trip, the digital outputs O1, O2 and O3 switch off the starting contactors, thus stopping the motor For the Control Unit (UC) connection diagram presented in the Item 5.4.6.1 Connection Diagram - Star-Delta

Starter on page 5-20, the digital inputs and outputs are conﬁgured according to the Table 5.9 on page 5-19.

Table 5.9: Conﬁguration of the digital inputs and outputs for the Star-Delta Starting operation mode

Function

Digital Inputs/Outputs

I11 Stop pushbutton Free

I12 Start pushbutton Start/Stop switch

(*)

I13

(*)

I14

I15 Free

I16 Free

O1 K1 contactor operation

O2 K2 delta contactor operation

O3 K3 star contactor operation

O4 Ladder

(*) Adjust P208 according to the application.

Local/Remote Commands Using Digital Inputs

Control Logic

3 wires (P230 = 1)

(Pushbuttons)

Check Back K1-K2

Check Back K1-K3

Control Logic

2 wires (P230 = 0)

(Switch)

NOTE!

In the example above, the Check Back signal was conﬁgured for digital input, P208 = 1. The factory setting is Check Back by motor current, P208 = 0. If P208 = 0, then the digital inputs I13 and I14 becomes free for the user.

The changeover time from star to delta is conﬁgured through the parameter P210.

P210 – Star-Delta Time

Adjustable Range:

Proprieties: Sys, CFG Description:

It deﬁnes the time delay for the changeover from star to delta.

ATTENTION!

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.

1 to 999 s Factory

25 s

Setting:

SRW 01 | 5-19

Page 66

Parameterization

5.4.6.1 Connection Diagram – Star-Delta Starter

The scheme on Figure 5.10 on page 5-20 shows an example of the use of the Control Unit (UC) on the StarDelta Starting operation mode with drive through digital inputs (P229 or P232 = 0) at 24 Vdc using three wires (pushbuttons) control logic (P230 = 1) and measurement of delta current.

R/L1 S/L2

T/L3

3 3 3

5 5 5

1 1 1

SRW01-UMC

Figure 5.10: Connection scheme for the Star-Delta Starting operation mode –using digital inputs at 24 Vdc and driven by pushbuttons

4 4 4

6 6 6

2 2 2

234

3 ~

SRW01-UC

SRW01-CB

(P230=1) and measurement of delta current

110...240 VAC/VDC 50/60Hz R/L1

K2 K3

C1 C3 C401 03 0402

K2 K3

A1ICI16I15I14I13I12I11

ATTENTION!

If the Current Measurement Unit (UMC) is inserted in the delta connection (typical connection), the motor rated current value (P401) must be adjusted for

nameplate (In).

Example: Motor rated current (In) = 100 A

P401 = In x

P401 = 100 x

√

of the motor rated current indicated in the

√

P401 = 57,7 A

The modiﬁcations of the scheme for drive through the digital inputs (P229 or P232 = 0) at 24 Vdc, using two wires (switch) control logic (P230 = 0) is shown on Figure 5.11 on page 5-20.

110...240 VAC/VDC 50/60 Hz R/L1

Figure 5.11: Detail modiﬁcation for drive using digital inputs at 24 Vdc and switch drive (P230 = 0)

5-20 | SRW 01

A1ICI16I15I14I13I12I11

Page 67

5.4.6.2 Operation Diagram – Star-Delta Starter

Start

Stop

O1 - K1

Parameterization

O3 - K3

Motor Transition

Time

O2 - K2

Trip

Reset

Check Back

Imotor

Check Back

Aux. I13 - ∆

Check Back

Aux. I14 - Y

Figure 5.12: Operation diagram for the Star-Delta Starter operation mode

P210

P212

5.4.7 Dahlander Starter

In this mode a Dahlander starter for three-phase motors is conﬁgured. The digital output O1 is reserved (internal use) for running the motor at the low speed. The digital outputs O2 and O3 are reserved (internal use) for running the motor at the high speed. The digital output O4 can be used according to the user’s needs (free).

In case of a trip, the digital outputs O1, O2 and O3 switch off the starting contactors, thus stopping the motor.

For the Control Unit (UC) connection diagram presented in the Item 5.4.7.1 Connection Diagram - Dahlander

Starter on page 5-22, the digital inputs and outputs are conﬁgured according to the Table 5.10 on page 5-21.

Table 5.10: Conﬁguration of the digital inputs and outputs for the Dahlander Starting operation mode

Function

Local/Remote Commands Using Digital Inputs

Digital Inputs/Outputs

I11 Stop pushbutton Free

I12

I13

(*)

I14

I15 Free

I16 Free

O1 K1 - Low speed contactor operation

O2 K2 - High speed contactor operation

O3 K3 - High speed contactor operation

O4 Ladder

(*) Adjust P208 according to the application.

Control Logic

3 wires (P230 = 1)

(Pushbuttons)

Start high speed

pushbutton

Start low speed

pushbutton

Control Logic

2 wires (P230 = 0)

(Switch)

Start high speed/stop switch

Start low speed/stop

switch

Check Back

SRW 01 | 5-21

Page 68

Parameterization

NOTE!

In the Dahlander Starter mode the parameter P401 must be programmed with the low speed nominal current and P402 must be programmed with the high speed nominal current.

NOTE!

The motor speed can be changed with the motor switched on, after the time deﬁned in P212 has elapsed.

5.4.7.1 Connection Diagram – Dahlander Starter

The scheme on Figure 5.13 on page 5-22 shows an example of the use of the Control Unit (UC) on the Dahlander Starting operation mode with drive through digital inputs (P229 or P232 = 0) at 24 Vdc using three wires (pushbuttons) control logic (P230 = 1).

R/L1 S/L2

T/L3

L1T1L2

SRW01-UMC

T2L3T3

1 1 1

3 3 3

5 5 5

6 6

2 2 2

4 4 4

Figure 5.13: Connection scheme for the Dahlander Starting operation mode using digital inputs at 24 Vdc and driven by pushbuttons (P230 = 1)

W2 W1

V2 V1

3 ~

V2 V1

SRW01-CB

K2K3

SRW01-UC

110...240 VAC/VDC 50/60Hz R/L1

S1 S2

I11

C1 C3 C401 03 0402

K2 K3

A1ICI16I15I14I13I12

The modiﬁcations of the scheme for drive through the digital inputs (P229 or P232 = 0) at 24 Vdc, using two wires (switch) control logic (P230 = 0) is shown on Figure 5.14 on page 5-22.

110...240 VAC/VDC 50/60 Hz R/L1

5-22 | SRW 01

Figure 5.14: Detail modiﬁcation for drive using digital inputs at 24 Vdc and switch drive (P230 = 0)

A1ICI16I15I14I13I12I11

Page 69

5.4.7.2 Operation Diagram – Dahlander Starter

Low Speed

High

Speed

Stop

O1 - K1

Parameterization

Motor Transition

Time

O2 - K2

O3 - K3

Trip

Reset

Check Back

Imotor

Check Back

Aux. I14

Figure 5.15: Operation diagram for the Dahlander Starter operation mode

P212

5.4.8 Pole Changing Starter

In this mode a Pole Changing Starter for three-phase motors with two windings is conﬁgured. The digital output O1 is reserved (internal use) for running the motor at the low speed. The digital output O2 is reserved (internal use) for running the motor at the high speed. The digital outputs O3 and O4 can be used according to the customer’s needs (free).

page 5-24, the digital inputs and outputs are conﬁgured according to the Table 5.11 on page 5-23.

Table 5.11: Conﬁguration of the digital inputs and outputs for the Two Winding Starting operation mode

Function

Digital Inputs/Outputs

I11 Stop pushbutton Free

I12

I13

(*)

I14

I15 Free

I16 Free

O1 K2 - low speed contactor operation

O2 K1 - high speed contactor operation

O3 Ladder

O4 Ladder

(*) Adjust P208 according to the application.

Local/Remote Commands Using Digital Inputs

Control Logic

3 wires (P230 = 1)

(Pushbuttons)

Start high speed

pushbutton

Start low speed

pushbutton

Check Back

Control Logic

2 wires (P230 = 0)

(Switch)

Start high speed/ stop

switch

Start low speed/stop

switch

SRW 01 | 5-23

Page 70

Parameterization

NOTE!

In the Pole Changing Starter mode the parameter P401 must be programmed with the low speed nominal current and P402 must be programmed with the high speed nominal current.

NOTE!

The motor speed can be changed with the motor switched on, after the time deﬁned in P212 has elapsed.

5.4.8.1 Connection Diagram – Pole Changing Starter

The connection scheme on Figure 5.16 on page 5-24 shows an example of the use of the Control Unit (UC) on the Two Winding Starting operation mode with drive through digital inputs (P229 or P232 = 0) at 24 Vdc using three wires (pushbuttons) control logic (P230 = 1).

R/L1

S/L2 T/L3

L2T2L3

SRW01-UMC

1 1

3 3

Figure 5.16: Connection scheme for the Two Windings Starting operation mode using digital inputs at 24 Vdc and driven by pushbuttons

5 5

2 2

4 4

6 6

3 ~

SRW01-CB

SRW01-UC

(P230 = 1)

110...240 VAC/VDC 50/60Hz R/L1

K1 K2

S1 S2

I11

C1 C3 C401 03 0402

K1 K2

A1ICI16I15I14I13I12

The modiﬁcations of the scheme for drive through the digital inputs (P229 or P232 = 0) at 24 Vdc, and at 110 Vca, using two wires (switch) control logic (P230 = 0) is shown on Figure 5.17 on page 5-24.

5-24 | SRW 01

110...240 VAC/VDC 50/60 Hz R/L1

Figure 5.17: Detail modiﬁcation for drive using digital inputs at 24 Vdc and switch drive (P230 = 0)

A1ICI16I15I14I13I12I11

Page 71

5.4.8.2 Operation Diagram – Pole Changing Starter

Low Speed

High

Speed

Stop

O1 - K2

Parameterization

Motor Transition

Time

O2 - K1

Trip

Reset

Check Back

Imotor

Check Back

Aux. I14

Figure 5.18: Operation diagram for the Pole Changing Starter operation mode

P212

5.4.9 PLC Mode

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. It can also be used as a remote I/O expansion without a ladder program.

The digital inputs and outputs can be used according to the need of the application, operated in a remote way and conﬁgured as per Table 5.12 on page 5-25.

Table 5.12: Conﬁguration of the digital inputs and outputs for the PLC operation mode

Digital Inputs/Outputs Function

I11 Free

I12 Free

I13 Free

I14 Free

I15 Free

I16 Free

O1 Ladder

O2 Ladder

O3 Ladder

O4 Ladder

ATTENTION!

In the PLC mode, if an error or Trip occurs the Control Unit (UC) will not automatically disconnect its outputs. This protection must be programmed by the user using the error and Trip bits on the Ladder logics of the Control Unit (UC).

SRW 01 | 5-25

Page 72

Parameterization

5.4.9.1 Connection Diagram – PLC

The scheme on Figure 5.19 on page 5-26 shows an example of the use of the Control Unit (UC) on the PLC operation mode with drive through digital inputs at 24 Vdc.

110...240 VAC/VDC 50/60Hz

R/L1

S1 S2 S3 S4 S5

I11

SRW01-UC

C1 C3 C401 03 0402

Figure 5.19: Connection scheme for the PLC operation mode using digital inputs at 24 Vdc

A1ICI16I15I14I13I12

5.5 MOTOR CONFIGURATION

In order to achieve an efﬁcient motor protection, it is necessary to conﬁgure the parameters correctly according to the motor data.

P295 – Current and/or Voltage Measurement Unit (UMC/UMCT)

Adjustable

Range:

Proprieties: 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 and Section 3.6 CONNECTION OF THE CURRENT/VOLTAGE MEASUREMENT UNIT (UMCT) on page 3-6 of this manual.

Factory Setting:

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. In this condition, it does not allow the motor to be driven while there is an error condition and automatically leaves the error condition when the setting is valid. There is no need for the reset control. A signal is sent out through the status led (green) and the message “E0082” on the HMI is cleaned.

5-26 | SRW 01

Page 73

P296 – Number of Turns through the UMC/UMCT

Parameterization

Adjustable Range:

Proprieties: Sys, CFG Description:

It deﬁnes the number of turns of the external CT secondary, through the UMC/UMCT window. It is available only if the Current Measurement Unit or Current/Voltage Measurement Unit selected is P295 = 7, and is used mainly when the CT secondary current is less than 1 A.

1 to 10 Factory

Setting:

P297 – Motor Type

Adjustable Range:

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.

0 = Three-phase 1 = Single-phase

Factory Setting:

P298 – External CT Primary Current

Adjustable Range:

Proprieties: Sys, CFG Description:

It deﬁnes the external CT primary current. It is available only if the Current Measurement Unit or Current/Voltage Measurement Unit (UMCT) selected is P295 = 7.

1 to 5000 A Factory

Setting:

1 A

P299 – External CT Secondary Current

Adjustable Range:

Proprieties: Sys, CFG Description:

It deﬁnes the external CT secondary current. It is available only if the Current Measurement Unit or Current/ Voltage Measurement Unit (UMCT) selected is P295 = 7.

0 = 1.0 A 1 = 5.0 A

Factory Setting:

P799 – UMC/UMCT Gain Adjustment

Adjustable Range:

Proprieties: Sys, rw Description:

It allows ﬁne-tuning of the current values read from the Current Measurement Unit (UMC) or Current/Voltage Measurement Unit (UMCT). It is available only if the Current Measurement Unit or Current/Voltage Measurement Unit (UMCT) selected is P295 = 7. It resets to the factory setting every time the Current Measurement Unit (UMC) or Current/Voltage Measurement Unit (UMCT) selection is changed at P295.

0.900 to 1.100 Factory

Setting:

1.000

SRW 01 | 5-27

Page 74

Parameterization

External CT application examples (P295 = 7).

Example 01:

Motor Nominal Current: 650 A, therefore, P401 = 650. Number of the external CT secondary turns through the UMC/UMCT: 1 turn, therefore, P296 = 1. External CT ratio: 800:5, thus the external CT primary current is 800 A, P298 = 800 and the external CT secondary current is 5 A, P299 = 1.

Example 02:

Motor Nominal Current: 80 A, therefore, P401 = 80. Number of the external CT secondary turns through the UMC/UMCT: 2 turns, therefore, P296 = 2. 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” on the HMI, if the motor nominal current (P401/P402) is out of the UMC/UMCT range. Motor starting is not allowed as long as the relay remains in this condit,ion, but it leaves the error condition without a reset command as soon as a valid setting is performed, signalizing the new condition through the status led in green and removing the E0082 message from the HMI.

E.g., message “E0082” using external CTs with a 200:1 ratio, with two CT secondary turns through the UMC1/ UMCT1, so that the number of turns n = 2, and the motor nominal current adjusted in 48 A.

The transforming factor (K) used to calculate the current reading range for external CTs is obtained dividing the ratio 200:1, resulting in a factor K = 200. As the UMC1/UMCT1 current range goes from 0.5 to 5 A, by using the external CT with a 200:1 ratio, the maximum current will be 200 A and the minimum will be of 0.5 x K/n, resulting in 50 to 200 A.

For more information, refer to the Section 3.7 EXTERNAL CURRENT TRANSFORMER (CT) USE on page 3-7 of this manual.

P400 – Motor Nominal Voltage

Adjustable Range:

Proprieties: Sys, CFG Description:

It deﬁnes the motor power supply voltage.

P401 – Motor Nominal Current 1

Adjustable Range:

Proprieties: Sys, CFG Description:

It deﬁnes the motor nominal current.

0 to 1000 V Factory

Setting:

0.0 to 5000.0 A Factory Setting:

380 V

0.5 A

For the operation modes Transparent, Overload Relay, Direct on Line Start, Star/Delta and Reversing Starter, the motor nominal current is adjusted through the parameter P401.

5-28 | SRW 01

Page 75

ATTENTION!

For the Star-Delta start operation, the value adjusted in P401 depends on the mounting position of the

Current Measurement Unit (UMC) or Current/Voltage Measurement Unit (UMCT). If the reading of the

current is delta (typical connection), the motor rated current value (P401) must be adjusted for

of the motor rated current indicated in the nameplate (In). Otherwise, adjust P401 for the motor rated

current indicated on the nameplate (reading of current in the power supply line.

P402 – Motor Nominal Current 2

Parameterization

√

Adjustable Range:

Proprieties: Sys, CFG Description:

It deﬁnes the nominal current of the motor second winding. It is used with Dahlander and Pole Changing motors.

For the two-speed operation modes, Dahlander and Pole Changing, the motor nominal current is adjusted using the parameters P401 and P402, for the low and high speed windings, respectively.

0.0 to 5000.0 A Factory

Setting:

0.5 A

P404 – Motor Rated Power

Adjustable Range:

Propriedades: Sys, CFG Descrição:

It deﬁnes the nominal motor power. Set it according to the used motor nameplate data.

If the power is in CV or HP, multiply the value by 0.736 kW or 0.746 kW respectively.

0.1 to 6553.5 kW Factory

Setting:

75.0 kW

P408 – Motor Phase Sequence

Adjustable Range:

Proprieties: Sys, CFG Description:

It deﬁnes the motor phase sequence used in the phase sequence protection, protecting loads that can be run only in one direction of rotation.

0 = 1-2-3 1 = 3-2-1

Factory Setting:

0 = 1-2-3

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.

SRW 01 | 5-29

Page 76

Parameterization

5.6.1 Ethernet

Parameters for conﬁguration and operation of the Ethernet.

P029 - Value of Addressing Switches

P084 - Communication Protocol

P310 - Conﬁguration of the Serial Interface Bytes

P313 - Action in Case of Communication Error (Fieldbus)

P680 - Status Word

P682 - Control Word

P751 - Ethernet Communication Status

P753 - Ethernet Baud Rate

P756 - Modbus TCP Timeout

P760 - IP Address Conﬁg

P761 - IP Address 1

P762 - IP Address 2

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

P850 to P869 - Write Words #1 to #20

P899 - Update Ethernet Conﬁguration

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.

 Phase loss (current).

 Current imbalance.

 Overcurrent – configured for locked rotor protection.

Parameterization

 Undercurrent.

 Earth fault.

 PTC thermal protection.

 Frequency out of range.

 Earth leakage.

 External fault.

 Phase sequence.

 Voltage unbalance.

 Phase loss (voltage).

 Overvoltage.

 Undervoltage.

 Underpower.

 Overpower.

 Power under factor.

 Power over factor.

NOTE!

The parameters related to the motor and to the protections must be deﬁned according to data of the motor manufacturer. Other parameters must be deﬁned based on the system or process requirements.

SRW 01 | 5-31

Page 78

Parameterization

All the protections listed can be enabled or disabled, and they can be conﬁgured to turn off the motor (Trip) or only signal an alarm. For some protections, it is also possible to conﬁgure an adjustment time (delay).

The protections are active according to the motor state; some are transitory state, whereas others are continuous. 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.

Table 5.13: Availability of protection according to the motor state

Protection Motor State

Overload Motor on

Phase loss (current) Motor on

Current unbalance Always

Overcurrent (rotor locked) Always

Undercurrent Motor on

Ground fault Always

Thermal protection via PTC Motor on

Frequency out of range Motor on

Leak to ground Always

External fault Conﬁgurable

Phase sequence Always

Voltage unbalance Motor on

Phase loss (voltage) Motor stopped

Overvoltage Motor stopped/after the start of the motor

Undervoltage Motor stopped/after the start of the motor

Underpower After the start of the motor

Overpower After the start of the motor

Power under factor After the start of the motor

Power over factor After the start of the motor

NOTE!

The motor start time is given by the trip class of the relay (P640). Example: Adjusting P640 = 2, we have the relay trip class = 10. Thus, the motor start time is 10 s.

5.7.1 Hysteresis

In order to improve stability and prevent oscillations, a hysteresis value is applied to the protections of overvoltage, undervoltage, underpower, overpower, power under factor and power over factor.

The hysteresis value is subtracted from the maximum value for the protections of overvoltage, overpower and power over factor. For the protection of undervoltage, underpower and power under factor, the hysteresis value is added to the minimum adjustment value of the protection. Deﬁning, thus, a value to start the counting and reset the protection timer.

Figure 5.20 on page 5-33 presents a diagram of hysteresis application.

5-32 | SRW 01

Page 79

Maximum Value

Hysteresis

Nominal Value

Hysteresis

Minimum Value

Protection

Timer

Parameterization

Time [s]

Figure 5.20: Hysteresis application

P605 – Hysteresis

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the hysteresis percentage in relation to the maximum and minimum values of protection of overvoltage, undervoltage, underpower, overpower, power under factor and power over factor.

Example: Voltage minimum value (undervoltage) adjusted in 100 V. When voltage reading <= 100 V is identiﬁed, the protection meter (P658) starts. If the signal returns to normal state (rated value) before the timer reaches the adjusted value causing an alarm or trip signal – when the signal passes by the hysteresis level – the timer will be reset. For a hysteresis of 5 %, the timer will be reset when the signal level is 105 V.

0 to 15 % Factory

Setting:

5 %

5.7.2 External Fault

The external fault protection can be used to monitor the state of an external equipment (for example, a limit switch) through a signal on a digital input. Monitoring can be done regardless of the state of the motor or only when it is in operation.

P606 – External Fault Protection

Adjustable Range:

0 = Disabled 1 = Enabled

Proprieties: Sys, rw Description:

It enables or disables the external fault protection.

Factory Setting:

SRW 01 | 5-33

Page 80

Parameterization

P607 – Auto-Reset External Fault

Adjustable Range:

Proprieties: Sys, rw Description:

It enables or disables the external fault protection auto-reset. The auto-reset is executed only if the signal that originated it is no longer present and if there is no other alarm or Trip in the system.

0 = Disabled 1 = Enabled

Factory Setting:

P608 – External Fault Timing

Adjustable Range:

Proprieties: Sys, rw Description:

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.

If the timing is disabled, then as soon as the fault signal is identiﬁed, the protection action (P613) is executed.

0 = Disabled 1 = Enabled

Factory Setting:

P609 – External Fault Time

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the time with external fault that is necessary before turning off the motor or indicating an alarm. It is available only if the External Fault timing is enabled (P608 = 1).

1 to 99 s Factory

Setting:

P610 – External Fault Monitoring of Protection

Adjustable Range:

Propriedades: Sys, rw Descrição:

It deﬁnes in which operation state the external fault protection is veriﬁed.

If P610 = 0, the protection is active regardless whether the motor is operating or stopped.

If P610 = 1, the protection is only active when the motor is operating.

NOTE!

In the PLC operation mode, the external fault protection is veriﬁed regardless of the value adjusted in P610.

0 = Always 1 = Only When the Motor is Running

Factory Setting:

5-34 | SRW 01

Page 81

P611 – External Fault Signal

Parameterization

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes which the digital input that corresponds to the external fault signal is.

0 = Digital Input I11 1 = Digital Input I12 2 = Digital Input I13 3 = Digital Input I14 4 = Digital Input I15 5 = Digital Input I16

P612 – External Fault Signal Logic

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the logic of the external fault drive signal.

If P612 = 0, normally closed, active in logic level 0 (zero).

If P612 = 1, normally open, active in logic level 1.

0 = Normally Closed (NC) 1 = Normally Open (NO)

Factory Setting:

P613 – External Fault Protection Action

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the protective action by external fault.

NOTE!

It is only possible to cause an external fault through the Control Unit (UC) digital inputs. In order to generate errors or faults, use the USERERR block in the WLP software. In order to get more information about the WLP software use, refer to the WLP manual, available for download on the website: www.weg.net.

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

5.7.3 Current Imbalance between Phases

The Unbalance protection monitors the three motor phases calculating the current imbalance according to the equation 02. If the calculated unbalance is higher than the value adjusted at the parameter P614 longer than the time adjusted at P615, then the motor may be switched off or only an alarm be activated, according to the parameter P616. The imbalance protection follows the recommendations of the NEMA MG1 standard, establishing that 5 % voltage imbalance is equivalent to 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

Parameterization

NOTE!

The protection of Imbalance between phases works only with three-phase motors.

P614 – Current Imbalance

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the percentage of current Imbalance between the phase.

5 to 100 % Factory

Setting:

40 %

P615 – Current Imbalance Time

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the allowed time with the imbalanced current before switching off the motor or indicating an alarm. If P615 = 0, the function remains disabled.

0 = Disabled 1 to 99 s = Enabled

Factory Setting:

3 s

P616 – Current Imbalance Protection Action

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the action of the current imbalance protection.

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

5.7.4 Earth Fault

The earth fault protection is achieved by means of the vector sum of the currents of the three motor phases, and it is indicated only for equipment protection. The earth fault current is deﬁned through the parameter P617 and has a range from 40 to 100 % of the motor nominal current.

NOTE!

The Earth Fault protection works only with three-phase motors.

NOTE!

If the Earth Fault is enabled during a star/delta starting, incorrect actuations may occur. This happens during the delta operation, because due to the harmonics the sum of the currents is different from zero.

P617 – Earth Fault

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the percentage of the earth fault current.

40 to 100 % Factory

Setting:

50 %

5-36 | SRW 01

Page 83

P618 – Earth Fault Time

Parameterization

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the allowed time with earth fault before switching off the motor or indicating an alarm. If P618 = 0, the function remains disabled.

0 = Disabled 1 to 99 s = Enabled

Factory Setting:

3 s

P619 – Earth Fault Protection Action

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the action of the earth fault protection.

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

5.7.5 Phase Loss (Current)

The phase loss protection monitors the current of the three motor phases. In case of the absence of one phase longer than the time adjusted at the parameter P620, then the motor may be switched off or only an alarm be activated, according to the parameter P621.

P620 – Phase Loss Time

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the allowed time with phase loss before switching off the motor or indicating an alarm. If P620 = 0, the function remains disabled.

0 = Disabled 1 to 99 s = Enabled

Factory Setting:

3 s

P621 – Phase Loss Protection Action

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the action of the phase loss protection.

NOTE!

The phase loss protection works only with three-phase motors, but not when delta connection is used. In this case, only the Imbalance and/or earth fault protections will work.

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

5.7.6 Overcurrent

The overcurrent protection is used independently from the overload protection. When the average current exceeds the limit adjusted at the parameter P622 longer than the time deﬁned in the parameter P623, then the motor may be switched off or only an alarm be activated, according to the parameter P624.

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

Parameterization

P622 – Overcurrent

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the percentage of overcurrent.

50 to 1000 % Factory

Setting:

400 %

P623 – Overcurrent Time

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the allowed time with overcurrent before switching off the motor or indicating an alarm. If P623 = 0, the function remains disabled.

0 = Disabled 1 to 99 s = Enabled

Factory Setting:

3 s

P624 – Overcurrent Protection Action

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the action of the overcurrent protection.

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

5.7.7 Undercurrent

The undercurrent protection monitors the average current and if it stays under the limit adjusted at the parameter P625 longer than the time deﬁned in the parameter P626, then the motor may be switched off or only an alarm be activated, according to the parameter P627.

Example: considering the following parameterization:

 Parameter P202 = 2.

 Parameter P625 = 20 %.

 Parameter P626 = 3 s.

 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 Range:

Proprieties: Sys, rw Description:

It deﬁnes the percentage of undercurrent.

5-38 | SRW 01

5 to 100 % Padrão: 20 %

Page 85

P626 – Undercurrent Time

Parameterization

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the allowed time with undercurrent before switching off the motor or indicating an alarm. If P626 = 0, the function remains disabled.

0 = Disabled 1 to 99 s = Enabled

Factory Setting:

0 s

P627 – Undercurrent Protection Action

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the action of the undercurrent protection.

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

5.7.8 Frequency Out of Range

The frequency out of range protection monitors the line frequency by means of the measurement of the phase L2 T2 current and compares it with the value adjusted at the parameter P407. If the frequency ﬂuctuation percentage remains higher than the value adjusted at the parameter P628 longer than the time adjusted at P629, then the motor may be switched off or only an alarm be activated, according to the parameter P630.

P407 – Line Frequency

Adjustable Range:

Proprieties: Sys, CFG Description:

It deﬁnes the frequency of the line at which the motor is connected.

0 to 99 Hz Factory

Setting:

60 Hz

P628 – Frequency Out of Range

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the percentage of the line frequency ﬂuctuation.

5 to 20 % Factory

Setting:

5 %

P629 – Frequency Out of Range Time

Adjustable Range:

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.

0 = Disabled 1 to 99 s = Enabled

Factory Setting:

0 s

SRW 01 | 5-39

Page 86

Parameterization

P630 – Frequency out of Range Protection Action

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the action of the frequency out of range protection.

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

5.7.9 Earth Leakage

The IEC 60755 technical report deﬁnes the terms “earth fault current” as the current that ﬂows to the earth due to an insulation fault; “earth leakage current” is the current that ﬂows from the live parts of an installation to the earth in the absence of insulation fault; and “residual current” is the vectorial sum of the instantaneous current values ﬂowing through the power circuit of the installation.

The SRW 01 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. The earth leakage protection allows to detect faults on the installation and/or electrical deterioration of equipment measuring residual currents between 300 mA and 5 A. The time for the protection to actuate can also be conﬁgured from 0.1 s up to 99.0 s.

ATTENTION!

This earth leakage protection system has the sole purpose to protect installations. It is not for the purpose of protecting people.

It is expected for a fuse/circuit breaker, the upstream on the installation, with appropriate interruption capacity to perform for residual currents with high magnitudes, supposedly indicating currents circulating on the main circuit above the interruption capacity of the contactor. For this, the SRW 01 offers a function that inhibits the opening of the relay when the residual current is larger than 10 A (for further information see the description of the function on Item 5.7.9.3 Trip Inhibition Function in Case of Short Circuit on page 5-42).

There are several situations during the start of electric induction motors that can indicate false presence of earth leakage on the sensor. 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. This function allows reducing the

risks of nuisance trips (for further information see the description of the function on Item 5.7.9.2 Inhibition of the

Earth Leakage Protection at Starting on page 5-41).

5.7.9.1 Earth Leakage Protection Operation

The SRW 01 offers a protection against earth leakage current on an installation (the earth leakage protection set on parameter P631) whenever a fault occurs when the earth leakage sensor (ELS) detects that there is a residual current larger than the current set on parameter P632 and the time is larger than that set on parameter P633. The protection can be conﬁgured for alarm or trip through parameter P634. The factory standard for the earth leakage protection is disabled.

NOTE!

If the Earth Leakage inhibition functions on the Start function (P635) or inhibition of the Trip in case of short-circuit (P637) are abled, the SRW 01 will act according to the description of these functions.

5-40 | SRW 01

Page 87

P631 – Earth Leakage Protection

Parameterization

Adjustable Range:

Proprieties: Sys, rw Description:

It ables or disables the earth leakage protection. If P631 = 0, the function remains disabled.

0 = Disabled 1 = Enabled

Factory Setting:

P632 – Earth Leakage Current Level Selection

Adjustable Range:

Proprieties: Sys, rw Description:

It selects the earth leakage current.

0 = 0.3 A 1 = 0.5 A 2 = 1 A 3 = 2 A 4 = 3 A 5 = 5 A

Factory Setting:

P633 – Earth Leakage Time

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the earth leakage current time to turn off the motor or to signal alarm, increment/decrement of 0.1s.

0.1 a 99.0 s Factory

Setting:

0.5 s

P634 – Earth Leakage Protection Action

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the earth leakage protection action.

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

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. The inhibition time of start can be set between 1 and 600 s (factory setting 5 s) through parameter P636.

P635 – Earth Leakage Start up Inhibit

Adjustable Range:

Proprieties: Sys, rw Description:

It ables or disables the inhibition of the earth leakage protection action during motor start.

0 = Disabled 1 = Enabled

Factory Setting:

SRW 01 | 5-41

Page 88

Parameterization

P636 – Earth Leakage Start up Time Inhibit

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the inhibition time of the earth leakage protection action during motor start, increment/decrement of 1 s.

NOTE!

The inhibition time of the earth leakage protection at the motor start begins to be counted whenever the measured motor current is higher than 15 % of the rated current set on parameters P401 and/or P402 or the residual current detected by the earth leakage current sensor (ELS) (P037) is higher than 150 mA.

NOTE!

At motor start, if there is a residual current detected by the earth leakage current sensor (ELS), if the earth leakage protection (P631) and the earth leakage protection inhibition function at start (P635) are abled, the actuation time of the relay will be the sum of the times set on parameters P633 and P636.

NOTE!

If the earth leakage protection function at start is abled (P635), the earth leakage protection will only start when the inhibition time of the protection at start (set on P636) expires.

1 to 600 s Factory

Setting:

5 s

5.7.9.3 Trip Inhibition Function in Case of Short Circuit

The SRW 01 also offers a trip inhibition function in case of short circuit (P637) as long as the earth leakage protection is abled on parameter P631. The level of short circuit current for this protection is ﬁxed at 10 A and it cannot be set by the user. This function only has effect if the earth leakage protection action, conﬁgured on P634, is selected to Switch Off (Trip).

If the residual current detected by the earth leakage sensor is higher than 10 A and the protection that inhibits the trip, when there is a short circuit condition, it abled on parameter 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. The factory standard for this function is

disabled.

P637 – Earth Leakage Short Circuit Trip Inhibit

Adjustable Range:

Proprieties: Sys, rw Description:

It ables or disables the trip inhibition in case of short circuit.

ATTENTION!

The Trip Test function described in Item 5.7.25.2 Trip Test on page 5-58 of this manual, makes it possible to verify the correct operation of the digital output (s), not verifying the ﬂow of earth leakage current or default on the connection wiring between the earth leakage sensor (ELS) and the control unit (UC).

0 = Disabled 1 = Enabled

Factory Setting:

5-42 | SRW 01

Page 89

Parameterization

5.7.9.4 Veriﬁcation of the Earth Leakage Current Measuring

It is recommended to check the correct operation of the system periodically by applying a known earth leakage current on the level deﬁned on P632 through an earth leakage sensor and comparing it with that informed on P037. Figure 5.21 on page 5-43 shows a connection scheme for the test.

Resistor calculation "R":

R =

Resistor power calculation "R":

P = R . I

Calculation of error percentage between the circuit current ( I ) and the current informed on parameter P037:

I - I

error (%) =

Current I must satisfy the following condition:

P037

x 100

SRW01-UC

E1 E2

0.3 ≤ I ≤ 5 A

V = Alternate supply source.

Figure 5.21: Connection scheme for circuit test of earth leakage current measuring

3 ~

5.7.10 PTC Thermal Protection

The PTC thermal protection uses PTC sensors installed inside the motor for its protection.

Actuation range:

 Actuation: value higher than 3.4 kΩ.

 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

“E0035” on the HMI.

P644 – PTC Protection

Adjustable Range:

0 = Disabled 1 = Enabled

Proprieties: Sys, rw Description:

It enables or disables the PTC protection.

Factory Setting:

SRW 01 | 5-43

Page 90

Parameterization

P645 – PTC Protection Action

Adjustable Range:

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

Proprieties: Sys, rw Description:

It deﬁnes the action of the PTC protection.

NOTE!

The shorted PTC alarm is activated when the sensor resistance added to the one of the cables, is lower than 100 Ω. Table 5.14 on page 5-44 informs the cross section and the maximum length of the cables, in order to assure shorted sensor detection.

Table 5.14: Considerations for PTC sensor short-circuit detection

Cable

Cross Section

2.5 mm

1.5 mm

0.5 mm

Maximum Distance With

Short-Circuit Detection

2 x 250 m (820.2 ft)

2 x 150 m (492.1 ft)

2 x 50 m (164 ft)

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.

P640 – Relay Tripping Class

Adjustable Range:

Proprieties: Sys, rw Description:

It selects the SRW 01 overload protection tripping class.

ATTENTION!

Program the tripping class that better adapts to your application and protects the motor in the allowed working regimen, as well as the other protection devices.

0 = Disabled 1 = Class 5 2 = Class 10 3 = Class 15 4 = Class 20 5 = Class 25 6 = Class 30 7 = Class 35 8 = Class 40 9 = Class 45

Factory Setting:

P641 – Overload Protection Action

Adjustable Range:

0 = Alarm 1 = Switch Off (Trip)

Proprieties: Sys, rw Description:

It deﬁnes the action of the overload protection.

5-44 | SRW 01

Factory Setting:

Page 91

Parameterization

It has a pre-alarm function informing that the motor thermal protection (P050) has passed the detection level programmed in P646. It is only available if the motor thermal protection action is programmed for Trip (P641 = 1).

The pre-alarm indication is kept until an overload trip occurs, turning off the motor. It is removed if the motor thermal protection level (P050) reaches the automatic reset level adjusted in P647, if the motor is turned off before reaching 100 % of the motor thermal protection (P050), if a motor Trip occurs, or if a manual reset is performed while the motor thermal protection (P050) is below the value adjusted in P646.

P646 – Overload Protection Pre-Alarm

Adjustable Range:

0 to 99 % Factory

Setting:

80 %

Proprieties: Sys, rw Description:

It deﬁnes the overload protection pre-alarm detection level. It is available only if the overload protection action is set for Trip (P641 = 1). Setting P646 = 0 disables the pre-alarm function.

P647 – Overload Pre-Alarm Auto-Reset

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the automatic reset actuation level of the overload protection pre-alarm. The auto-reset is only executed if the relay is not in error or Trip. If P647 = 0, the auto-reset remains disabled.

0 to 99 % Factory

Setting:

P050 (%)

Trip (100%)

P646

P647

75 %

Figure 5.22: Overload protection pre-alarm auto-reset programming

Set Reset

NOTE!

The pre-alarm level programmed in P646 must be higher than the reset level adjusted in P647.

The overload protection has curves that simulate the heating up and the cooling down of the motor. All the calculation is performed through sophisticated software that estimates the motor temperature using the True RMS motor current supplied by the current measurement unit.

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.

The thermal image cooling time depends on the motor power, i.e., for each power there is a different cooling time. Wherever there is the need to reduce this time, the parameter P642 can be used to deﬁne a ﬁxed cooling time.

SRW 01 | 5-45

Page 92

Parameterization

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.

The Figure 5.23 on page 5-46 presents all the tripping class curves considering service factors (S.F.) of 1.00 and

1.15.

Time t(s)

1000

100

Class 45

Class 40 Class 35 Class 30 Class 25

Class 20 Class 15

Class 10

Class 5 Current

x In

F.S.=1.00

F.S.=1.15

Figure 5.23: Tripping classes for cold motor protection

5x4x3x

8x7x6x

10x

5-46 | SRW 01

Page 93

Time t(s)

1000

100

Parameterization

Class 45 Class 40 Class 35 Class 30 Class 25 Class 20

Class 15

Class 10

Class 5

0.1

Figure 5.24: Tripping classes for warm motor protection with 100 % In

Table 5.15: Time multiplying factor for warm tripping classes

Current in % of the Motor In Factor

0 % (cold) 1

20 % 0.87

40 % 0.74

60 % 0.61

80 % 0.48

100 % (full load) 0.35

Current x In

9x8x7x6x5x4x3x2x1x

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. This data is available in the motor manufacturer catalog.

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.

SRW 01 | 5-47

Page 94

Parameterization

5.7.12 Service Factor

When the service factor (S.F.) is different from 1.00 and there is the need of using it, there are points in the cold motor graph for a S.F. = 1.15.

P406 – Service Factor

Adjustable Range:

1.00 to 1.50 Factory Setting:

1.15

Proprieties: Sys, CFG Description:

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.

t(s)

Cold

Figure 5.25: Using the S.F. to identify a new time as well as the other protection devices

F.S.=1.15

F.S.=1.25

Motor x In

5.7.13 Cooling Time

The parameter P642 adjusts the cooling time. If it is adjusted in 0 s, P642 is disabled and the cooling time obeys the thermal model curve, according to the Figure 5.26 on page 5-49 (b). However, if the parameter P642 is adjusted with a value different from 0, as 50 for instance, then after switching off the motor the thermal image will be reset after 50 s, according to the Figure 5.26 on page 5-49 (c).

P642 – Cooling Time

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the cooling time. If P642 = 0, the function remains disabled.

ATTENTION!

If a cooling time different from 0 is adjusted, the motor must be sized in order to comply with the starting regimen. Parameter P050 is reset during the relay initialization.

5-48 | SRW 01

0 = Disabled 1 to 3600 s = Enabled

Factory Setting:

0 s

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Parameterization

NOTE!

The thermal memory, in case of switching off, is not enabled when the cooling time is being used.

If the Cooling Time is being executed, the parameter P007 bit 4 - Relay Status 2 (binary) will indicate the value 1.

(a)

(b)

(c)

Motor

Off

Without

cooling time

With

cooling time

Figure 5.26: (a) to (c) Overload protection with and without cooling time

5.7.14 Overload Parameterization

Trip level

Cooling time

5.7.14.1 Tripping Class Programming Suggestion

1. Determine the correct starting time.

2. Find the average current during the starting time. An average current can be found for any type of starting control.

E.g.: Starting an 80 A motor, the starting current is 480 A, dropping to the nominal after 6 s. 480 A / 80 A = 6 x motor In So: 6 x In @ 6 s.

Use the data found in the previous example (6 x In) and the 6 s time (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 s

Figure 5.27: Cold start tripping class veriﬁcation

6 x motor In

15 10

5 xIn

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Parameterization

Therefore, the minimum needed tripping class to start the motor is the class 10, because the class 5 has a shorter time for that current. This class (10) allows the cold starting of the motor.

In order to determine the tripping class necessary for warm starting the motor, it is necessary to know the locked rotor time that the motor can withstand.

With the locked rotor time we identify the maximum tripping class that will protect the motor at warm starting, as described at the parameter P640.

For instance:

6.6 x In @ 7s

t(s)

Warm

7 s

Figure 5.28: Warm start tripping class veriﬁcation

6 x Motor In

30 xIn

Therefore, the maximum tripping class that will protect the motor is the class 35. The class 40 has a longer time for this current. 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.

5.7.15 Tripping Class Programming Example

Motor data: Power: 50 hp

Voltage: 380 V Nominal current (In): 71 A Service factor (S.F.): 1.00 Ip/In : 6.6 Locked rotor time: 12 s warm Speed: 1770 rpm

Motor starting + load data:

Starting current: 4 x the motor nominal current during 25 s (4 x In @ 25 s).

1. At the Figure 5.23 on page 5-46 we verify the minimum tripping class that will make the starting possible. For 4 x In @ 25 s we adopt the closest curve above the found point: Class 15.

2. At the Figure 5.24 on page 5-47 we verify the maximum tripping class that the motor withstands due to the warm locked rotor time. For 6.6 x In @ 12 s we adopt the closest curve below the found point: Class 40. The class 15 is the minimum limit for the starting and the class 40 the maximum limit. Therefore we must adopt a tripping class between those two limits, according to the number of starts per hour and the interval between stopping and restarting the motor.

The closer to class 15, the more the motor will be protected, allowing less starts per hour and requiring longer intervals between stopping and restarting the motor.

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Parameterization

The closer to class 40, the closer one gets to the motor maximum limit. Therefore, more starts per hour and smaller intervals between stopping and restarting the motor will be possible.

5.7.15.1 Reduction of the Time from Cold to Warm Starting

In order to determine the warm actuation times of the tripping classes when the motor is operating with full load and current equal or below 100 % of In, the Table 5.14 on page 5-44 multiplying factor must be used, according to the current percentage that the motor is taking continuously.

E.g.: A motor is being operated with 80 % of In and it is switched off. It is started again immediately. The starting regimen is 3 x In @ 25 s. The selected tripping class is Class 10 with 33.7 s @ 3 x In. The multiplying factor of the Table 5.7 on page 5-15 for 80 % In is 0.48.

The ﬁnal actuation time will be: 0.48 x 33.7 s = 16.2 s, i.e., the time has been reduced from 33.7s for a cold starting to 16.2 s for a warm starting, therefore, another start will not be possible before the motor thermal image diminishes, i.e., the motor cools down.

5.7.16 Phase Sequence

The phase sequence protection aims at protecting loads that can only rotate in a single direction. When enabled by means of parameter P648, it only allows the phase sequence selected in parameter P408 – Motor Phase Sequence, direct phase sequence (1-2-3) or reverse (3-2-1).

The phase sequence is detected from the reading of the power supply voltage signals. If the sequence is different from that adjusted in P408, a Trip signal is generated preventing the activation of the motor. There is no timing adjustment for this protection. The cause of the fault is generally related to the improper connection of the motor power supply cables.

P648 – Phase Sequence

Adjustable Range:

Proprieties: Sys, rw Description:

It enables and disables the phase sequence protection.

NOTE!

The phase sequence protection only works for three-phase motors. It is only available when the Current/ Voltage Measurement Unit (UMCT) is used and voltage is present in the three phases of the motor.

0 = Disabled 1 = Enabled

Factory Setting:

5.7.17 Voltage Unbalance

The voltage unbalance protection monitors the three phases of the motor, calculating the voltage unbalance as per equation 3. If the unbalance calculated is greater than that adjusted in parameter P649 for the timer adjusted in parameter P650, the motor can be shut down or just an alarm can be activated, according to parameter P651.

The unbalance protection follows the recommendations of standard NEMA MG1. NEMA MG1 does not recommend the operation of a motor above 1 % of voltage unbalance without reducing the motor capacity (derating). If the voltage unbalance in the motor terminals exceeds 3 %, the motor capacity must be derated to 90 %, and to 75 % if the unbalance is of 5 %. The standard also does not recommend the operation of a motor with a voltage unbalance level above 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.

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Parameterization

max_deviation % unbalance = 100 average_value

Equation 3 - Voltage unbalance as per NEMA MG1

P649 – Voltage Unbalance

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the voltage unbalance percentage between the phases.

1 to 30 % Factory

Setting:

5 %

P650 – Voltage Unbalance Time

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the voltage unbalance time between the phases to shut down the motor or signal an alarm. If P650 = 0, the function is disabled.

0 = Disable 1 to 99 s Enabled

Factory Setting:

3 s

P651 – Voltage Unbalance Protection Action

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the voltage unbalance protection action.

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

NOTE!

Use this protection to detect and protect the motor against little voltage unbalances. For unbalance levels over 35 %, use the Phase Loss protection (voltage).

NOTE!

The voltage unbalance protection only works for three-phase motors. It is only available when the Current/Voltage Measurement Unit (UMCT) is used.

5.7.18 Phase Loss (Voltage)

The phase loss protection is based on the voltage unbalance protection. It monitors the voltage of the three phases of the motor. If a voltage unbalance greater than 35 % is detected for the period adjusted in parameter P652, the motor can be shut down or just an alarm can be activated, according to parameter P653.

P652 – Phase Loss Time (Voltage)

Adjustable Range:

Proprieties: Sys, rw

0 = Disable 1 to 99 s Enabled

Factory Setting:

3 s

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Parameterization

Description:

It deﬁnes the phase loss (voltage) to shut down the motor or signal an alarm. If P652 = 0, the function is disabled.

P653 – Phase Loss Protection Action (Voltage)

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the phase loss (voltage) protection.

NOTE!

Use this protection to detect and protect the motor against unbalance levels over 35 %. For an unbalance level lower than or equal to 30 %, use the Voltage Unbalance protection.

NOTE!

The phase loss (voltage) protection only works for three-phase motors and is only available when the Current/Voltage Measurement Unit (UMCT) is used.

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

5.7.19 Overvoltage

This protection allows to monitor the voltage maximum variations. When some voltages measured exceed the limit adjusted in parameter P654 for the time deﬁned in parameter P655, the motor can be shut down or just an alarm can be activated, according to parameter P656.

P654 – Overvoltage

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the overvoltage percentage in relation to the motor rated voltage (P400).

1 to 30 % Factory

Setting:

15 %

P655 – Overvoltage Time

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the overvoltage time to shut down the motor or signal an alarm. If P655 = 0, the function is disabled.

0 = Disable 1 to 99 s Enabled

Factory Setting:

3 s

P656 – Overvoltage Protection Action

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the overvoltage protection action.

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

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Parameterization

NOTE!

The overvoltage 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.

5.7.20 Undervoltage

This protection allows to monitor the voltage minium variations. When some voltages measured are below the limit adjusted in parameter P657 for the time deﬁned in parameter P658, the motor can be shut down or just an alarm can be activated, according to parameter P659.

P657 – Undervoltage

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the undervoltage percentage in relation to the motor rated voltage (P400).

1 to 30 % Factory

Setting:

15 %

P658 – Undervoltage Time

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the undervoltage time to shut down the motor or signal an alarm. If P658 = 0, the function is disabled.

0 = Disable 1 to 99 s Enabled

Factory Setting:

3 s

P659 – Undervoltage Protection Action

Adjustable Range:

Proprieties: Sys, rw Description:

It deﬁnes the undervoltage protection action.

0 = Alarm 1 = Switch Off (Trip)

Factory Setting:

NOTE!

The undervoltage 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.

5.7.21 Underpower

The underpower protection can be used to detect the motor load loss, when there are no great variations in the motor current, for instance, in applications with hydraulic pumps that cannot operate with not load.

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.

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