Description
MOTOROLA MVME147S-1 control system
Monitoring speed is crucial in any automation process. The speed of equipment powered by an electric motor can be affected by various factors, such as transmission component overloading, breakage, or overload. A speed monitoring device is useful in open loop control to give an alarm or “shutdown” of the motor. In closed-loop control, such as the District of Columbia drive or V/F drive, feedback (4-20MA or 0-10V) is necessary to take corrective action.
Zero Speed Switches, also known as speed drive sensors, are used to detect the stopping or unacceptably slow motion of a rotating shaft. They are commonly used in various machines, conveyors, power plants, and industries that produce cement, sugar, textiles, paper, and more.
MOTOROLA MVME147S-1 Operation Principle – A non-contact inductive sensor detects the speed and motion of a rotating or moving object by placing the sensor probe near the sensing surface. Metal parts of specific dimensions should be mounted on the rotating object as flags. As these flags pass over the detector’s surface, the front radiated electromagnetic field is dampened, generating corresponding output pulses.
The MOTOROLA MVME147S-1 operates digitally and its circuitry is designed to function effectively even in areas with high electrical interference. However, it is recommended that the interconnecting cable used should have a minimum gauge of 0.5 square millimetres to ensure optimal performance. Moreover, a visual indication of sensing flag is provided by the ALED located at the back of the detector. For sensors that are not of the inductive type, connect the generated pulses as specified by the individual sensor.
In order to monitor under-speed conditions, a bypass arrangement must be in place during machine start-up when using the MOTOROLA MVME147S-1. The output relay of the speed monitor is “closed” for startup or speed conditions and “open” for normal operating speeds. Therefore, the relay contacts have to be bypassed (overridden) during startup. This can be accomplished by using an external timer, programming the PLC or using the built-in bypass time delay (ITD).
When the ITD function is activated, the output relay switches to the “supply” mode and stays on for the designated time. If the device reaches a healthy speed within this timeframe, the relay will remain activated. Consistency is maintained through standardized use of terms and abbreviations throughout this technical text. However, if the speed fails to reach or falls below the set value, the relay will deactivate.
Product details | |||
Delivery time | Available | Estimated Lead Time | 3-5 weeks |
Factory warraty | 12 months | Module number | MOTOROLA MVME147S-1 |
Manufacturer | original country | Product Name | controller/plc/dcs/servo/panel |
Voltage range (VDC) | 24-120vdc | Output range (mA) | 120 |
Over-range protection (VDC) | 21dd. | Input range (mA) | 33 |
Working temperature | 240 | System memory (Mb | 125 |
Interface | 6 | Color code | WHITE、GREY、BLACK |
Weight (KG) | 0.32 | Shipping weight (KG) | 1.25 |
Dimension (mm*mm*mm) | 124*120*46 | Purpose | Petrochemical industries |
Operation mode | Direct on-board | Product situation | Stop production |