Pi160 series frequency inverters were designed base on new software and hardware platform by Powtran , which is a type of high performance, compact size, attractive and durable economic vector control frequency inverter, with low-speed and high-torque, perfect protective functions, especially used for mini-machines, small automatic production lines and so on Control system:adopt dsp core processor of high performance vector control, power ic use mitsubishi ipm module and infineon pim integration module; Control terminal configuration: 7 ports digital input or input pulse, 2 ports digital output(spa and a relay), one analog input, one analog output, standard rs485 communication terminal, realize the pc and internet communication; The output signal:42 kinds of signals are available Frequency set:8 kinds of frequency set way, including dc~10v, 0-20ma range can be adjusted; Protection function, over voltage protection, under-voltage protection, over current protection, overload protection, overheating protection, over-volt speed loss protection, external fault protection communication.Error, pid feedback signal abnormal protection