ifm electronic is upgrading their range of speed monitors. In addition to the high input frequency from as low as one pulse per minute up to 60,000 pulses / minute and configurable functions, these also now include an extended operating temperature range down to 40degC below zero. The newly developed luminous OLED display is not only clearer but also brighter.
Maintaining a correct speed can be crucial to the performance of plant, from conveyors and centrifuges to carousels and wind turbines. Speed monitors calculate speed of rotation or oscillation by evaluating pulses. If the current values are above or below the user-defined limits, the transistor and relay outputs are switched, allowing reliable overspeed and standstill detection.
Several versions are on offer: speed monitors DD2503 and DD2603 monitor the rotational speed of one channel with two separately adjustable limit values. A separate switched output is assigned to each limit value, and an analogue signal is provided for further processing or display. The DD2505 and DD2605, on the other hand, monitor two separate input channels, each having one switch point. The DD2603 and DD2605 can also check that the sensor cabling is intact (when used with the recommended sensors).
Other devices in the range fulfil other vital functions: the DR2503 and DR2505 will check that a piece of machinery, such as a hoist or a pump, is rotating in the desired direction, as dire consequences can result if the direction is wrong.
Additionally, the DS series monitors slip or synchronous running. The DS2503 and DS2603 will check for slip between two sides of a drive system by looking for a relative pulse difference per rotation. Other devices in the DS range, the DS2505, DS2506 and DS2605 monitor for absolute pulse differences, so will ensure for example the synchronous operation of two spindles on a lifting platform, or that a gantry crane doesn't become wedged by moving too fast on one side.
In all units, the high-contrast luminous OLED display and the menu-guided parameter setting are designed for maximum user-friendliness. All units in the ifm electronic monitor range will operate on a wide range of voltages, AC or DC, and provide DC supply to pulse pickup sensors. ifm electronic can advise on and supply suitable inductive sensors, encoders etc. as pulse sensing devices.
Speed and standstill, direction, slip or synchronous motion is monitored reliably and accurately with the new features, allowing an immediate response in case of malfunction. Therefore, expensive consequential damage is a thing of the past.
For further information about speed monitors from ifm, please visit www.ifm-electronic.co.uk.