User manual OMRON VS MINI J7

[. . . ] I63E-EN-01 VS mini J7 Compact General Purpose Inverter USER'S ManUal Thank you for choosing this VARISPEED J7-series product. Proper use and handling of the product will ensure proper product performance, will lengthen product life, and may prevent possible accidents. Please read this manual thoroughly and handle and operate the product with care. To ensure safe and proper use of the OMRON-YASKAWA Inverters, please read this USER'S MANUAL (Cat. [. . . ] Time Time The following ON/OFF combinations of UP and DOWN commands are possible. Command S4 (UP command) S5 (DOWN command) Acceleration ON OFF Deceleration OFF ON Hold OFF OFF ON ON Hold With the UP/DOWN function used, the output frequency has the following restrictions for upper and lower limits. Upper limit: The maximum frequency in n09 or the frequency reference upper limit in n30, whichever is smaller. Lower limit: The minimum output frequency in n14 or frequency reference lower limit in n31, whichever is smaller. 86 Other Functions Chapter 6-7 · When the RUN command for forward or reverse rotation is input, the Inverter will start operating at the lower limit regardless of whether the UP/ DOWN command is input or not. · When the UP/DOWN function and inching frequency command are both assigned to multi-function inputs, an inching frequency command input will have the highest priority. · If n62 for UP/DOWN command frequency memory is set to 1, the output frequency held by the UP/DOWN function for 5 s or more will be stored in the memory. The output frequency will be held by the UP/DOWN function when both UP and DOWN commands are ON or OFF together. 6-7-8 Error History (n78) · The J7AZ stores information on the latest error. · The information on the latest error recorded is displayed by pressing the Enter Key after n78 for error history is displayed. · The details of the information are the same as that obtained from the multi-function monitor U09. n78 Setting range --- Error History Unit of setting --- Changes during operation Default setting ----- Note Display Example The information is read only. · Fault display uU 1 · No error stored Fault code To clear the error history, set n01 for parameter write-prohibit selection/ parameter initialization to 6. 87 Other Functions Chapter 6-7 88 CHAPTER 7 Communications 7-1 RS-422/485 Communications Unit . 7-1-1 7-1-2 7-1-3 7-1-4 7-2 7-2-1 7-2-2 7-2-3 7-2-4 7-3 7-4 Overview . Frequency Reference Input Selection (n03) . Setting the Multi-function Inputs (n36 to n39) . 90 90 90 91 91 93 93 96 96 97 98 101 101 103 106 108 109 111 111 112 115 116 Inverter Settings. . Message Communications Basic Format. 7-4-1 7-4-2 7-4-3 Data Read (Function Code: 03 Hex) . Data Write/Broadcast Data Write (Function Code: 10 Hex). . 7-8 7-9 Communications Error Codes . . 89 RS-422/485 Communications Unit Chapter 7-1 Using a SI-485/J7 (3G3JV-PSI485J) RS-422/485 Communications Unit allows J7AZ Inverters to participate in RS-422/485 serial communications. This makes Inverter control input, frequency reference input, monitoring of the Inverter's operating status, and reading and writing of parameter settings all possible via communications. Up to 32 Inverters can be connected to the Unit to enable easy creation of networks. The RS-422/485 communications used by J7AZ Inverters conforms to the MODBUS (a trademark of AEG Schneider Automation) communica-tions protocol. No other communications protocol can be used in the same network and only Inverters and related products can be used as Slaves. The communications processing time with RS-422/485 communications for J7AZ Inverters is proportional to the number of Slaves. [. . . ] When the motor is operated with the Inverter, motor vibration is almost the same as when operated with a commercial power supply. Motor vibration may, however, become greater in the following cases. · Resonance with the natural frequency of the mechanical system Take special care when a machine that has been operated at a constant speed is to be operated in variable speed mode. If resonance occurs, install vibration-proof rubber on the motor base. [. . . ]