Scientific Solutions ® Inc.
ELMOTM Electric Motor Test Station
The Scientific Solutions Elmo test system is designed for the durability testing of electric motors and systems.
As an example, you can use ELMO to perform 50,000 cycle testing on automotive electric windows. The system will record the number of completed cycles and error cycles while it monitors stall-current and the time it takes to cycle the window up and down.
The Scientific Solutions Elmo test system is designed for the durability testing of electric motors and systems. The Elmo system incorporates a modular design for ease of expansion. The system contains software and programmable hardware to control electric window motor UP/DOWN position, detect stall over-current conditions and monitor failures. It consists of a self-contained computer incorporating a Scientific Solutions data acquisition system that connects to a Master Control Unit (MCU). The MCU has one connector for cabling back to the computer and four additional connectors for cabling to Device Control Units (DCU). Each DCU can control up to four devices. A fully configured system, can simultaneously test 16 electric window motors, i.e. four "virtual" cars when used for automotive electric window testing.
Our Solution Includes
- LabRack Computer System with a LabMaster data acquisition card
- Master Control Unit and from one to four Device Control Units
- Complete cabling
- Elmo test software using a windowing graphical user interface
- Easy to use compact size compared to legacy solutions
- Support for both "standard" and "smart" motor testing
- Modular design for expandability
- Test up to 16 "standard" motors simultaneously
- Test up to 8 "smart" motors simultaneously
- Mix "standard" and "smart" motors
- Process Automation (digital relay control, continuous motor control)
- Automotive Electric Motor Window Testing
- Durability Testing
The ELMO system takes a user supplied voltage source and cycles this voltage to the motor connections on the Device Control Units (DCU). The motor connections can have the voltage present, absent or reverse polarity depending upon the requirements of the motors under test. The test software provides full configuration control of the test including determination of the motor end-of-movement by time or stall-current. Once a motor cycle test is started it can be stopped or paused by the user or automatically when a motor device fault is detected. During a test, a log file is created for later review in determining pass/fail modes.
Analog-to-Digital Conversion (ADC)
The ELMO system uses the LabMaster 16 bit Analog-to-Digital conversion circuits to measure various parameters including user supplied input voltage and motor current.
Digital Input/Output (DIO)
The ELMO system uses the LabMaster Digital I/O circuits to provide process control during the test. Digital I/O controls the selection of the motors to test, the set/reset function of the internal over-current protection circuitry and the polarity reversal of the user supplied input voltage.
The ELMO system also has the capability to make temperature measurements. A special 3.5mm connection is provided for each motor. A Scientific Solutions Temperature Probe is used with this connection. The probe can be physically located on the motor to measure motor temperature or to a location near the test to measure ambient. Such measurements may be important as performing a 50,000 cycle test at 30 seconds per cycle can produce significant motor heating and possibly eventual motor failure if adequate cooling is not provided.
|DCU: +Voltage Input requirement||+10v to +15v, 25 Amp per active stalled device|
|DCU: U/D Output Signal||Software controlled polarity +V at 25 Amp maximum current output or Ground|
|DCU: U/D Output Connection:||Banana Jack pair, 25A rated.|
|DCU: T Input Connection:||3.5mm Stereo Jack|
|Temperature Probe||-40 ºCelsius to +125 ºCelsius (±2 ºC)
-40 ºFahrenheit to +257 ºFahrenheit (±4 ºF)
3.5mm Stereo Plug connector
|Computer System||Universal Switching Power Supply, 90-220VAC, 50/60Hz|
|Operating Temperature||0 ºCelsius to +70 ºCelsius|
|Storage Temperature||-25 ºCelsius to +85 ºCelsius|
|Relative Humidity||To 95% non-condensing|
|Agency Approvals||FCC Class A, CE-Mark|