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E658191318 P (50 H) (RAM *1 write)This command is used to rewrite data into the parameter specified using a communication number.It writes data into the RAM only. It cannot be used to write data into any read-only parameters. Eachtime an attempt to write data is made the inverter checks whether the data falls within the specifiedrange. If this check reveals that the data falls outside the range, the inverter will reject it and returnan error code.- Ex.: Entering the emergency stop command (communication number: FA00) from the computerComputer Inverter Inverter Computer(PFA009000) CR (PFA009000) CR … Command priority, emergency stopcommandComputer Inverter Inverter Computer2F 50 FA 00 90 00 09 2F 50 FA 00 90 00 09 R (52 H) (Data read)This command is used to read the setting of the parameter specified using a communication num-ber.- Ex.: Monitoring the electric current (communication number: FE03)Computer Inverter Inverter Computer(RFE03)CR (RFE03077B)CR …Current: 1915 / 100 = 19.15%Computer Inverter Inverter Computer2F 52 FE 03 82 2F 52 FE 03 07 7B 04 G (47 H) (Data read)This command is used to read the parameter data specified using a communication number. Al-though this command is used for the previous model to control the operation of two or more invert-ers in binary mode through two-wire RS485 network, the “R” command can also be used withoutproblems for the VF-S15 series.To use the “G” command, however, dummy data (2 bytes) is needed.This command is available only in binary mode.- Ex.: Monitoring the electric current (communication number: FE03)Computer Inverter Inverter Computer2F 47 FE 03 00 00 77 2F 47 FE 03 07 7B F9* In this example, the data 00H sent from the computer to the inverter is dummy data. S (53 H)/ s (73 H) Inter-drive communication command(RAM*1 Write)This command is for using frequency command value in % (1 = 0.01%), instead of in Hz, and is forsynchronous-proportional operation in inter-drive communication. This command can also be usedin ordinary computer link communications.When writing in the frequency command value (FA01) is enabled and a parameter other than it isspecified, a communication number error will result. Data is written in the RAMs only and at thistime the data check such as an upper limit and lower limit checking is not carried out.Data is not returned from the inverters while this command is used. This command can be usedonly in the binary mode.For the details of the format, see “6.2. Transmission format for inter-drive communication”.Use (%) as the unit for frequency command value specified by the command S, instead of (Hz), andthe receiving side converts units for frequency values to “Hz” in accordance with the point conver-sion parameter. The conversion formula is shown below.Frequency command value (Hz) =Point 2 frequency (F813) − Point 1 frequency (F812)Point 2 (F814) − Point 1 (F811) x (Frequency command value (%)− Point 1 (F811)) + Point 1 frequency (F812)Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com |
