User Manual of EM730 Series Inverter 2)Check whether the line is connected. Send: 01 08 00 00 AA 55 5E 94 Return: 01 08 00 00 AA 55 5E 94 (normal) Return: 01 88 04 47 C3 (exception, assuming a slave protection) 3)Change the carrier frequency (F00.23) to 4.0kHz. (use the function code 0x06 as such function codes are expected to be stored in EEPROM after change) Send: 01 06 00 17 00 28 39 D0 Return: 01 06 00 17 00 28 39 D0 (normal) Return:
01 86 04 43 A3 (exception, assuming a slave protection) 395 13 Register value Lo (F19.04) 00 14 Register value Hi (F19.05) 00 15 Register value Lo (F19.05) 00 16 CRC check Lo 53 17 CRC check Hi 5B * Tail ≥3.5 characters (idle) Send the invoice to Normal Return Exception Return * Frame header ≥3.5 characters (idle) 1 Address 01 Address 01 Address 01 2 Function 08 Function 08 Function code 88 3 Sub-function code Hi 00 Sub-function code Hi 00 Exception code 04 (assumption) 4 Sub-function code Lo 00 Sub-function code Lo 00 CRC check Lo 47 5 Data Hi AA Data Hi AA CRC check Hi C3 6 Data Lo 55 Data Lo 55 7 CRC check Lo 5E CRC check Lo 5E 8 CRC check Hi 94 CRC check Hi 94 * Tail ≥3.5 characters (idle) Send the invoice to Normal Return Exception Return * Frame header ≥3.5 characters (idle) 1 Address 01 Address 01 Address 01 2 Function code 06 Function code 06 Function code 86 3 Register address Hi 00 Register address Hi 00 Exception code 04 (assumption) 4 Register address Lo 17 Register address Lo 17 CRC check Lo 43 5 Register value Hi 00 Register value Hi 00 CRC check Hi A3 6 Register value Lo 28 Register value Lo 28 7 CRC check Lo 39 CRC check Lo 39 8 CRC check Hi D0 CRC check Hi D0 * Tail ≥3.5 characters (idle)