Your local contact:Testing equipment for rotation direction and rotation sense
The rotation direction test is performed on electric motors. The test can be conducted on either the fully assembled motor or the stator.
The motor test is performed using a wide variety of speed and direction sensors. For example, reflective photoelectric sensors or encoders may be used.
The stator is tested using static sensors to detect the direction of rotation of the magnetic field.
Key Facts:
- Direction of rotation at the stator
- Non-contact, with no moving parts
- For asynchronous and synchronous motors
- Direction of rotation of the motor shaft
- Contactless via optical scanning
- By direct measurement on the shaft
- Any rotary encoders, encoders of any type, resolvers, etc.
- Often used in combination with speed measurement
Checking the direction of rotation on an electric motor
Depending on the testing requirements, various methods are available:
Residual magnetism
The motor shaft is rotated by hand. The phase sequence—and thus the direction of rotation—is determined from the three-phase voltage generated by remanence.
Typical for: MotorAnalyzer
Speed and Direction Sensor
The electric motor is powered and running. The direction of rotation and speed of the motor shaft are measured using sensors.
Typically used for: EOL tester GLP3
Spread field measurement
The electric motor is powered and running. The motor's externally measurable stray field provides information about the direction of rotation.
Typical for: EOL tester GLP3
Acceleration analysis
During the startup phase, the direction of rotation is determined based on the direction of acceleration.
Typically used for: EOL tester GLP3
Checking the direction of rotation on the stator
Depending on the engine type, different methods are used:
induction motor
The direction of rotation is determined using a static Hall-effect sensor.
Typically used with: MotorAnalyzer, MTC3
Synchronous motor
Here, static Hall-effect sensors detect the magnetic fields of the poles and, based on this, determine the direction of rotation.
Typically used in: MotorAnalyzer, MTC3
MotorAnalyzer1
The entry-level model for your engine service
CHECK YOUR ENGINE'S CONDITION!
For electrical machine manufacturers
For electric motor repair
For maintenance, servicing, and support
- Determine the direction of rotation using a measuring probe in the stator
- Determine the rotating field by manually rotating the motor shaft
- Plus many other testing methods …
- Lightweight and portable
- Off-grid operation
- PC software for printing and saving
MotorAnalyzer3
The mobile all-in-one professional model for your engine service
CHECK YOUR ENGINE'S CONDITION!
For electrical machine manufacturers
For electric motor repair
For maintenance, servicing, and support
- Determine the direction of rotation using a measuring probe in the stator
- Determine the rotating field by manually rotating the motor shaft
- Plus many other testing methods …
- Portable
- Off-grid operation
- PC software for printing and saving
- Communication with
«» PC via Bluetooth
MTC2 R7
Universal winding testers from 6 to 50 kV
For production, EOL, and automation
For test labs, R&D, approval, and regulatory testing
For repair, maintenance, and service
- Determine the direction of rotation using a measuring probe in the stator
- Determine the rotating field by manually rotating the motor shaft
peak voltage
- Ultra-fast 50 measurements per second
- Comparison of phases with one another
- Patented peak-to-peak measurement
Partial discharge under surge voltage in accordance with DIN EN 60034-18:2014
- Wired decoupling
- Passive or active antenna
Ohmic resistance
- Winding
- temperature sensor
Insulation resistance
- IR, PI, DAR
High-voltage AC (optional)
Test terminals
- Default: 4
- Optional: 7 or more
MTC3 R2
Universal Coil Tester Unlimited. For reliable production.
For production, EOL, automation
For test labs, R&D, approval, regulatory testing
- Peak voltage – ultra-fast 50 measurements per second
- Partial discharge under surge voltage in accordance with DIN EN 60034-18:2014
- Ohmic resistance
- Insulation resistance
- PI, DAR
- High-voltage AC
- Partial discharge in high-voltage systems
- Determine the direction of rotation using a measuring probe in the stator
- 3, 6, 9, 12, …, 24 winding test terminals
- PL e, SIL 3, Cat. 4 safety circuit, two-hand control, 2-channel safety
- Windows11®
- Network
- Report & Label Printing
- Industry 4.0
- Automation interfaces such as PROFINET, EtherCAT, TCP/IP, …
- Interfaces to MES, ERP, CAQ systems, …
Good to know:
The rotation direction test
The SCHLEICH product portfolio – expect more!
Rotation Direction Testers
- Direction of rotation of the magnetic field in a stator
- Rotating-field probe in an induction motor
- Magnetic pole probe in a synchronous motor
- Direction of rotation of the shaft in a motor
- Typically used in combination with other testing methods
- Standard interfaces such as RS-232, Ethernet/LAN, and USB for communication with a PC
- 24 V digital I/O for PLC communication
- Expandable to Industrial Ethernet and fieldbus systems for PLC communication
- Virtually unlimited storage space for test plans and test results
- All parameters are set via the software
Custom testing equipment and systems
- Single-function and combination testers
- Automatic testers/test systems with a relay matrix
(2, 3, 4, 6, 9, 12, 15, 18, 21 … 100 terminals) - Complete testing stations
- Production lines with transfer systems
- EOL workstations
- Large-scale facilities
Comprehensive service
- Professional consulting backed by expert knowledge
- Careful initial startup
- Regular certified calibration
- After-sales support from our service team
- Service by phone, via remote support, or on-site
- Customized training programs
- SCHLEICH.CARE.PREMIUM
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