ProcessDefender® is an accurate and reliable Motor Load (Power) Monitor, designed to protect rotating equipment from expensive damage and downtime caused by abnormal process overload and underload conditions.
ProcessDefender® uses the motor as its own sensor, thereby eliminating the need for external sensors such as temperature probes, pressure sensors, flow monitors or vibration transducers, etc.
ProcessDefender® 'learns' the normal process load and then, when instructed to do so, automatically sets itself to protect against abnormal overload and/or underload conditions.
A key feature of ProcessDefender® is its ability to protect the Engineer and Operator from Arc Flash. Programming and Alarm Reset is via the externally mounted HMI or Modbus interface. Previous Motor Load Monitors have typically been installed inside a motor control panel and where the user can be exposed to dangerous Arc Flash conditions - a situation where a violent flashover of electrical current can occur and where the user can experience serious injury or even death. ProcessDefender® eliminates these concerns.
ProcessDefender® includes 3 fully programmable relays. The relays are designated as follows:
- Relay 1: Main Alarm - typically used to shut down the motor in the event of an abnormal process load condition.
- Relay 2: Pre-Alarm - an early warning of an impending main alarm.
- Relay 3: General Alarm - used to signal an array of other monitored parameters such as over / under voltage, phase symmetry (imbalance), locked rotor, exceeded starts per hour limit.
The HMI can display % motor load, HP, kW, Line Voltage, and measured Amps.
The ProcessDefender's® installation simply requires the Power Transducer to be mounted on a 35mm DIN rail, close to the motor starter. The clamp-on CT is to be installed onto the L1 phase going to the motor, and the HMI is to be mounted in the door of the motor control panel.
Common applications for the ProcessDefender® include:
- Mag Drive Pumps
- Screw (positive displacement) Pumps
- Progressive Cavity Pumps
- Conveyors
- Mixers
- Scrapers
- Crushers
- Circular and Linear Clarifiers
- Belt-driven Fans
