193-EC2ZZ E3 Plus Solid-State Overload Relay from Rockwell Automation
The part number 193-EC2ZZ is an E3 Plus Solid-State Overload Relay from Rockwell Automation. This device is designed to provide overload protection for motors through true RMS current measurement of individual phase currents. It offers advanced features such as thermal utilization, adjustable settings for thermal overload protection, and thermal memory to maintain the thermal model of the connected motor even when power is removed.
Technical Specifications
- Inputs: 4
- Outputs: 2
- PTC Thermistor Input: Available
- External Ground Fault Current Measurement: Available
- DeviceLogix Enabled: Yes
- DeviceNet: Supported
- Current Rating: 9-5,000 Amps
Alarm/Error Codes
The device provides various alarm and error codes to indicate specific conditions. These include thermal overload protection, ground fault protection, and other system status indicators. The user manual provides detailed information on how to interpret and respond to these codes.
User Manual
The user manual for the 193-EC2ZZ provides detailed instructions on installation, configuration, and troubleshooting of the device. It is intended for qualified personnel with experience in communications technology and configuration procedures.
Troubleshooting
Troubleshooting is simplified through the DeviceNet Configuration Terminal, which allows for easy access to device information and diagnostics. The terminal can be used to commission, configure, program, and monitor devices on the network, making it easier to identify and resolve issues.
Programming
The device can be programmed to adjust settings for thermal overload protection, including the motor's full load current (FLC) rating and the desired trip class. This ensures the accuracy of the protection and allows for customization to specific motor applications.
Installation
The device is designed for use with separately mounted, customer-supplied, line current transformers (CTs) in higher-current applications. The installer must provide one CT for each motor phase and connect the CT's secondary leads to the appropriate E3 Overload Relay terminals. The device is intended for use with CTs having a secondary current rating of 5 A.
Key Features
- Thermal Overload Protection: Provides true RMS current measurement of individual phase currents to simulate the actual heating of the motor.
- Adjustable Settings: Allows for customization of thermal overload protection settings, including the motor's full load current (FLC) rating and the desired trip class.
- Thermal Memory: Maintains the thermal model of the connected motor even when power is removed.
- Ground Fault Protection: Offers internal and external ground fault protection options.
- DeviceLogix Enabled: Supports advanced features such as thermal utilization and thermal warning.
- DeviceNet: Supports communication through the DeviceNet network, allowing for remote monitoring and control.