Disclosed is a parameter copy method and keypad having parameter copy function by recognizing software versions and inverter types. The keypad according to the present disclosure includes a communication unit transmitting data to a plurality of inverters and receiving data from the plurality of inverters; and a controller determining whether type of a first inverter received from the communication unit is same as that of a second inverter, and performing a parameter copy if the type of a first inverter received from the communication unit is same as that of the second inverter, whereby parameters can be copied regardless of types and program versions of inverter, and parameter copy in a plurality of inverters each having a different type can be easily performed.