1) Operation Source Switch Run command/frequency source are easy to with a DIP switch. Default is keypad settings. Sliding the switch changes the sources to the control terminals. 2) Improved PID Control Reverse PID function changes the sign of the deviation value which is the difference between target and feedback values. Upper and lower limits a target value can be imposed on the inverter output frequency. 3) Logic and Output Timing functions Output terminals can be assigned logical operators AND, OR and XOR with RUN, AL and so on. ON and OFF delay times are settable for each output terminal. Allows for more flexible system design. 4) Analog Setpoint Calculate Functions An offset frequency can be added to or subtracted the output frequency when ADD terminal is ON. For example, if output frequency setting is 40Hz and offset frequency is 5Hz, output frequency becomes 45Hz (or 35Hz) when ADD terminal is ON. 5) Integrated EMC Filter Reduces electromagnetic noise.(on European-Version unit only. Effective for only single phase input for 200V class models) 6) Easy Maintenance Detachable cooling-fan. 7) RS-485 Serial Port An RS-485 communication port with Modbus-RTU protocol is integrated. Easier for network operation. 8) Versatile Functions Pure analog monitor output (8-bit, 0-10V DC) External thermistor terminal (PTC) Side-by-side installation Second motor setting Over-voltage suppression at deceleration 3-wire control Analog input ion Second acceleration/deceleration setting Jogging Conformity to global standards. CE, UL, c-UL and c-Tick approvals.