Rockwell-automation 193-EC4 EC4 Current Monitoring Relay User Manual User Manual Page 38
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Rockwell Automation Publication 193-UM011A-EN-P - September 2010 39
Protective Trip and Warning Functions Chapter 3
Ground Fault Setting Range
EC4 Current Monitoring Relays using the external ground fault sensor (Cat. no.
193-CBCT_) have four sensing ranges, which are selectable via the GF Sensing
Range parameter.
Parameter 106, GF Sensing Range (Series C and later)
• 20…100 mA (For resistive loads only. For motor load information, please
consult your local Rockwell Automation sales office or Allen-Bradley
distributor.)
• 100…500 mA
• 200 mA …1.0 A
• 1.0…5.0 A
Ground Fault Trip
The EC4 Current Monitoring Relay will trip with a ground fault indication if:
• No trip currently exists
• Ground fault protection is enabled
• GF Inhibit Time has expired
• GF Current is equal to or greater than the GF Trip Level for a time period
greater than the GF Trip Delay
If the EC4 Current Monitoring Relay trips on a ground fault, the following will
occur:
• The TRIP/WARN LED will flash a red 4-blink pattern
• Bit 3 in Parameter 14, Trip Status, will go to “1”
• Bit 0 of Parameter 21, Device Status, will go to “1”
• The Trip Relay contact will open
• The outputs will be placed in their Protection Fault state (if so
programmed)
Parameter 35, GF Inhibit Time, allows the installer to inhibit a ground fault trip
from occurring during the motor starting sequence and is adjustable from 0…250
seconds.
Parameter 36, GF Trip Delay, allows the installer to define the time period a
ground fault condition must be present before a trip occurs. It is adjustable from
0.0…25.0 seconds.
IMPORTANT
The Protection Fault State of OUT A and OUT B is defined by Parameter
65 (OUTA Pr FltState), Parameter 66 (OUTA Pr FltValue), Parameter 71
(OUTB Pr FltState), and Parameter 72 (OUTB Pr FltValue).
- EC4 Current Monitoring Relay 1
- Important User Information 2
- IMPORTANT 3
- DNET-UM072_-EN-P 4
- Table of Contents 5
- Product Overview 10
- Diagnostic Parameters 12
- Trip Relay 12
- Inputs and Outputs 12
- Status Indication 13
- Test/Reset Button 13
- Node Address Switches 14
- DeviceNet Compatibility 14
- Flash Memory 14
- Installation and Wiring 15
- Starter Installation 16
- Starter Assembly Instructions 17
- 193-EC_ _E) 18
- Cat. No. 193-EC_ _B) 20
- Cat. No. 193-EC_ _E) 21
- Power Terminals 22
- Terminal Designations 23
- Grounding 24
- Short-Circuit Ratings 24
- Fuse Coordination 25
- Typical Motor Connections 25
- Single-Phase Full-Voltage 26
- External Line Current 27
- Transformer Application 27
- Installation Instructions 28
- External Ground Fault 29
- Sensor Application 29
- E3 Plus Overload Relay 30
- Cat. No. 193-CBCT_ 30
- Ground Fault Sensor 30
- Cat. No. 193-CBCT1 31
- Typical Control Circuit 32
- Wiring Diagrams 32
- Single-Phase 33
- Three-Phase 33
- Warning Enable 35
- Overcurrent Protection 35
- Introduction 35
- Trip Enable 35
- Overcurrent Warning 36
- Overcurrent Trip 36
- Ground Fault Protection 37
- Ground Fault Setting Range 38
- Ground Fault Trip 38
- Ground Fault Trip Inhibit 39
- Ground Fault Warning 39
- Undercurrent Protection 40
- Undercurrent Trip 41
- Communication Fault 42
- Protection 42
- Communication Idle 43
- Comm Idle Warning 44
- Remote Trip 44
- Preventive Maintenance 45
- Diagnostics 45
- Queue Clearing 46
- DeviceNet Node Commissioning 47
- Using RSNetWorx for DeviceNet 48
- Figure 26 - EDS Wizard Screen 50
- Programmable Parameters 57
- Monitor Params (All 58
- Read-Only) 58
- Advanced Setup Group 60
- For Catalog Number 193-EC4ZZ 66
- Reset/Lock Group 71
- DeviceNet Setup Group 72
- Output Setup Group 75
- DeviceLogix Group 79
- Current Monitoring Parameters 81
- Reporting Accuracy 82
- Ground Fault Current 83
- Reporting 83
- Monitor Group 83
- Trip History and Snapshot 90
- Trip History Codes 92
- Warning History Codes 93
- Trip Snapshot 94
- Explicit Messaging 96
- (0x0375) 102
- Using DeviceLogix™ 104
- DeviceLogix Programming 105
- Troubleshooting 110
- Network Status LED 111
- OUT A & OUT B LEDs 111
- DeviceNet Modes of 112
- Operation 112
- Power-Up Sequence 112
- Run Mode 113
- Recoverable Error Mode 113
- Unrecoverable Error Mode 113
- Resetting a Trip 114
- Trip/Warn LED 114
- Procedures 114
- DeviceNet Troubleshooting 115
- Input and Output 115
- ➊ FRN 2.000 and later 116
- Specifications 117
- Table 4 - Input Ratings 118
- Environmental 119
- Table 9 - Protection 120
- DeviceNet Information 122
- Identity Object – Class 123
- Code 0x01 123
- Message Router – Class 124
- Code 0x02 124
- DeviceNet Object – Class 124
- Code 0x03 124
- Assembly Object – Class 125
- Code 0x04 125
- Input Assemblies 126
- Connection Object – Class 128
- Code 0x05 128
- Discrete Input Point Object 132
- – Class Code 0x08 132
- Discrete Output Point 132
- Object – Class Code 0x09 132
- Parameter Object – Class 133
- Code 0x0F 133
- Parameter Group Object – 135
- Class Code 0x10 135
- Control Supervisor Object – 139
- Class Code 0x29 139
- Acknowledge Handler 142
- Object – 0x2B 142
- DeviceNet Interface Object 143
- – Class Code 0xB4 143
- ODVA Fault Codes 144
- Logic Supervisor Object 145
- CLASS CODE 0x030E 145
- Status Object - CLASS 145
- CODE 0x0375 145
- CE Compliance 148
- Low Voltage Directive 149
- Two-Speed Applications 150
- Accessories 151
- Rockwell Automation Support 157
- Documentation Feedback 157
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