Fault and security test
It is mainly for stacking machines, shuttle cars, conveyor and so on.
There are about 30 kinds of failures of stacking machines. The safety tests include loose rope, over tolerance, overweight and limit switches. Fork overrun, overheat protection and broken rope protection are not tested. In addition, the key point is the empty cargo and the double entry protection of cargo location.
The safety test of the shuttle vehicle is concentrated on over tolerance and overweight protection. In addition, the key points of testing are double warehousing and empty cargo collection.
The key points of safety testing for conveyor are light load and heavy load stopping, shifting location, overtime protection and so on.
Conveyors and shuttle cars are capable of passing capacity. When testing, it is usually required to connect to the system.Otherwise it will be difficult to test.
The operation capacity of stacker is in accordance with FEM 9.851. For the content of FEM 9.851, please refer to the relevant information.
Many people do not know what reliability is, so in the contract did not put forward reliability acceptance criteria, also do not carry out reliability acceptance. In fact, this is one of the most important indicators of complex system acceptance.
The system reliability index is described by the system availability index. According to the requirement of FEM 9.851, the availability index of a system is calculated according to the following formula:
F = (T0-T1) /T0*100%
F represents the availability of the system, expressed in percentage;
T0 is the total time of homework. It is generally required to test continuously for 5 days, 8 hours per day.
T1 is the total equivalent fault time;
The so-called equivalent failure time refers to the equivalent influence of parallel subsystem failure time on the whole system. For example, if ASRS has 10 stackers, then any 1 stacker failures, its equivalent factor of only 1/10, that is, the equivalent time of the failure is only 1/10 of the actual failure time. For WMS and WCS systems, the equivalent factor is 1. Refer to FEM 9.851 for basic knowledge of availability.
Under normal circumstances, the availability reaches 93%, which means that the system can be run on-line through preliminary acceptance. Through final acceptance, the availability can reach more than 97%.
Welfor is specialized in producing various pallet rack, cantilever rack, medium duty rack, mezzanine and platform, slotted angle shelving, push back rack, longspanrack, rivet rack, drive in rack, carton flow rack, stacking rack and other related storage equipment.
Welfor strictly implements ISO9001, FEM10.2.02, SEMA, AS4084 and RMI standard in all operations. Welfor offers a wide range of products to meet all of your order fulfillment & material handling needs: pallet rack and cantilever rack. Whether you are looking to populate an entire warehouse or you are in need of a single piece of equipment, Welfor has a solution for you.