Multifunction Safety Device MPB-310M (МПБ-310М) for the overhead travelling cranes
The MPB-310М device is mounted on the overhead travelling cranes for performing functions of load limitation in alarm conditions or for their prevention.
Device description
The MPB-310М device meets all the requirements of the normative documents issued in Russian Federation concerning load lifting equipment operations.
The device is designed for installation on cranes with up to three hoisting mechanisms and four load grades of load limitation with the possibility of separate and joint operation of hoisting mechanisms.
The device is designed for installation on cranes with up to three hoisting mechanisms and four load grades of load limitation with the possibility of separate and joint operation of hoisting mechanisms.
The device automatically switches-off the electrical supply of the hoisting mechanism control, if the load exceeds the rated crane capacity specified in the crane technical-and-operation data on the value specified in the regulatory document.
The device performs functions of registering, pre-processing, accumulating, and storing data on crane performance parameters during fixed time. These data contains main information on crane performance (date and time of the parameters registration, loads at the load-handling devices, condition and operational integrity of the crane assembly units and mechanisms, safe-load limiters actuation, wind speed, total crane operating time in machine hour, total number of the operational cycles, weight of the hoisted load, etc.). Applying the parameter recorder allows to obtain objective information on crane operating mode, and data for crane assembly units and mechanisms failure analysis, to extend operations of a crane, and to reduce costs of their maintenance, to conduct operations on maintenance and repair depending on actual operating time, etc.
The device does not refer to the products specified by the State system of industrial gages and automation equipment, it is not a measuring instrument, and it is not a subject to metrological calibration.
The device does not refer to the products specified by the State system of industrial gages and automation equipment, it is not a measuring instrument, and it is not a subject to metrological calibration.
Main characteristics
Main characteristics
Main characteristics
The device is designed for operating in the following conditions:
- variations of the environment temperature from 40 Celsius degree below zero to 55 Celsius degree above zero (when mounted on pouring cranes, the force transducers still stays serviceable at short duration raises of temperature up to 85 Celsius degree above zero);
-relative air humidity of 98% at temperature 25°С.
- variations of the environment temperature from 40 Celsius degree below zero to 55 Celsius degree above zero (when mounted on pouring cranes, the force transducers still stays serviceable at short duration raises of temperature up to 85 Celsius degree above zero);
-relative air humidity of 98% at temperature 25°С.
The device insures safety of the long-time storage information for not less than 3 years from the date of the last turning-off.
The data on crane operational mode are stored in the device being constantly updated not rarer than each 10 days.
The device generates control signals via four independent channels (the device has four output relays) to turn off the electrical circuit of the crane lifting mechanisms and to turn on the sound alarm.
The value of the load current connected to the device must not exceed 10 A.
The device consumption current from the power supply of ~ 50 Hz 220 V (380 V) doesn't exceed 0,15 A.
The device gets power from the single-phase circuit of ~ 50 Hz 220 V (380 V). Permissible variations of the supply voltage are from 0,85 to 1,1 of nominal voltage.