Traditional Culture Encyclopedia - Hotel accommodation - Someone has touched the equipment of my hotel hot water system, and now I don't know what it is. The frequency displayed on the frequency converter of variable frequency circulating pump is above 50.2

Someone has touched the equipment of my hotel hot water system, and now I don't know what it is. The frequency displayed on the frequency converter of variable frequency circulating pump is above 50.2

Someone has touched the equipment of my hotel hot water system, and now I don't know what it is. The frequency displayed on the frequency converter of variable frequency circulating pump is above 50.2. The displayed frequency is not necessarily the output frequency of the inverter. It is possible that the output frequency of the inverter can not reach 50 or even lower. The suggestions are as follows:

1, check the output frequency parameter of the inverter. What is it?

2. Measure the speed of the motor. Does it reach the rated speed?