© Emotron AB Protection against damage and downtime Emotron M20 Shaft Power Monitor.
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Transcript of © Emotron AB Protection against damage and downtime Emotron M20 Shaft Power Monitor.
© Emotron AB
Protection against damage
and downtime
Emotron M20Shaft Power Monitor
© Emotron AB
• Unique shaft power calculation
• Uses motor as a sensor
• Increased reliability
• Reduced maintenance costs
• Low-cost installation
Emotron M20 – efficient protection
© Emotron AB
Preventive action saves money
• Efficient and reliable operation
• Reduced maintenance costs
• Short pay-back time
• Early warning or stop
• Pump is running dry
• Scraper blade is damaged
• Crusher is jammed
Load
Time
Overload stop
Overload warning
Normal load curve
Underload warning
Underload stop
© Emotron AB
Unique shaft power monitoring
• Unique monitoring technique
• Shaft power = Input power – Power loss
• Accurate value over the whole load range
• More reliable supervision
Shaft power
Current
Phase angle
Input power
kW/A/φ°
Motor load
100%
© Emotron AB
Uses motor as a sensor
• Uses drive motor as a sensor
• No sensors or extra cabling
• No holes in pipes
• Increased reliability
• Reduced installation costs
• Reduced maintenance
© Emotron AB
Direct correlation to pump curve
• Prevents dry-running and cavitation
• Direct correlation to pump curve
• Set max. and min. load levels for pump and motor
• Immediately detects over- or underload
Head (mvp)
Warning dry-running
Warning cavitation
Operational areaPump
Motor shaft power
Operational areaLoad
Flow
© Emotron AB
Higher accuracy with scalable signal
• Unique scalable analogue output signal
• Machine load scaled to actual working range
• Reliable monitoring also when small load variations
• Input to indicating instruments, controllers, PLC
Machine load
100%
Output signal mA
70%
Actual working range
30%
0
6 14 20
Emotron M20 scaled output signal Unscaled output signal
© Emotron AB
Low-cost installation
• Reduced installation costs
• Uses motor as a sensor
• No external sensors
• No holes in pipes
• Monitors via current transformer
• No external transmitters
• Minimized wiring
© Emotron AB
Enter your settings in three seconds
• Unique Auto set feature
• Set four protection points in three seconds
• Press Auto set during normal operation
• Warning and stop levels calculated automatically
© Emotron AB
Zero maintenance
• Higher reliability and reduced maintenance
• Replaces costly and service-demanding components
• Solid-state device with no moving parts
• Installed away from hostile operating area
© Emotron AB
Protection to meet your needs
© Emotron AB
Pumps
• Warns or stops the pump
• Risk of dry-running or cavitation
• Motor does not drive the pump
• Low flow, closed valve, blocked pipe etc.
• Reduced maintenance costs
• Increased reliability
• Less downtime
© Emotron AB
Mixers
• Warns or stops the mixer
• Damaged mixer blade
• Shaft oscillation
• Viscosity is right
• Reduced maintenance costs
• Increased reliability
• Less downtime
© Emotron AB
Scrapers
• Warns or stops the scrapers
• Jamming
• Damaged scraper blade
• Reduced maintenance costs
• Increased reliability
• Less downtime
© Emotron AB
Crushers, conveyor systems etc.
• Warns or stops the process
• Jamming occurs
• Material runs out
• Reduced maintenance costs
• Increased reliability
• Less downtime
© Emotron AB
Technical data Emotron M20
Supply voltage 100-240 / 380-500 / 525-690 VAC
Frequency 50 / 60 Hz
Rated current Up to 999 A via current transformer
Protection class IP20
Approvals CU, UL, cUL
© Emotron AB
A dedicated product portfolio
Emotron Shaft Power Monitors
Emotron Softstarters
Emotron Variable Speed Drives
• PROTECT
• START• PROTECT• STOP
• START• PROTECT• CONTROL• STOP