User manual HITACHI J300

[. . . ] HITACHI INVERTER J300 SERIES INSTRUCTION MANUAL Three phase input 200/400V class J300 U : USA version After reading this manual, keep it at hand for future reference. Hitachi, Ltd. Tokyo Japan NB506XC SAFETY For the Best Results with J300 Series inverter, read this manual and all of the warning sign attached to the inverter carefully before installing and operating it, and follow the instructions exactly. Keep this manual handy for your quick reference. Definitions and Symbols A safety instruction (message) is given with a hazard alert symbol and a signal word; WARNING or CAUTION. Each signal word has the following meaning throughout this manual. [. . . ] The initial values of motoring and regeneration are 100% torque. The overtorque signal can be used only under the sensorless vector control. Setting method Press the FUNC key once for the terminal code to be set. The set values of the terminals which are set at present are displayed. Display the set value of the terminal to be used from the function list indicated below by pressing the key 1 and 2 and then press the FUNC key. The display is returned to the code display and the terminal function is changed. FUNC Enter the set value of the terminal name to be used by pressing the keys 1 and 2 . FUNC Precautions for terminal setting Same terminals cannot be set between and . When moving a terminal name to another terminal, set another terminal which is not to be ued at the setting source before inputting the set value to the setting destination and then select the terminal name which is to be set at the setting destination. 7-30 Extension function code Contents and display The input intelligent terminals 4 to 1 can be changed individually to the a contact or b contact specification. Select the set value by pressing the keys 1 and 2 by combining the contacts a and b with reference to the table indicated below. Example: When the set value is A: Input terminal a and b contact setting Contact a: Input terminals 3, 1 Contact b: Input terminals 4, 2 Setting method FUNC Press the 1 key 10 times. Select the contact specification with reference to the table indicated below. FUNC Initial setting Initial value Set value F E d C b A 9 8 7 6 543210 aa a aaa aaa Input terminal 4 3 2 1 bbbbbbbbaa bbbbaa bba a abb abb a: Contact a specification (Shorted when power is turned ON) b: Contact b specification (Opened when power is turned ON) bba abba aabbaa bababa Set the high order to 0. bababababa Input terminal a and b contacts function list The output ingent terminal 11 and 12 and alarm output terminal can be changed idividually to the a contact or b contact specification. Select the set value by pressing the keys 1 and 2 by combining the contacts a and b with reference to the table indicated below. Output terminal a and b contact setting Example: When the set value is : Alarm output: Contact b Terminals 11 and 12: Contact b Setting method FUNC Press the 1 key 3 times. FUNC Initial setting Initial value Set value 7 b b 6 a b b 5 b a b 4 a a b 3 b b a 2 a b a 1 b a a 0 a a a Output terminals 11 and 12 a: Contact a specification (Shorted when power is turned ON) b: Contact b specification (Opened when power is turned ON) Output terminal 11 12 (NOTE) Alarm b Set the high order to 0. Output terminal code list NOTE: For details of the Alarm terminal, see page 6-5. 7-31 8. PROTECTION FUNCTIONS The J300 series inverters are equipped with protection functions against overcurrent, overvoltage, and undervoltage which protect the inverter. If the protection functions are engaged, the output is shut down, motor runs free and holds that condition until it is reset. Description Over current protection Contents A currrent due to the alternating current CT between the power module and output terminal {U(T1), V(T2), W(T3)} is detected. When the motor is restricted or decelerated suddenly, a large current flows through the inverter and causes a fault. Therefore, when an abnormal current is detected by the alternating current CT and it exceeds a specified value, the output is cut off. (An abnormal current is also detected in the power module. Refer to , , , and . ) Constant speed Dec. Acc. Display Overload protection (NOTE 1) Braking resistor overload Overvoltage protection EEPROM error (NOTE 2) Undervoltage protection CT error CPU error External trip USP error Ground fault protection When a motor overload is detected by the electronic thermal function, the output of the inverter is cut off. When the braking time exceeds the satting by overvoltage the output of the inverter is cut off. braking duty factor, an When the converter voltage exceeds a certain level due to regenerative energy from the motor, this protection function engages, and the output of inverter is cut off. When the memory built in has problems due to noise or excessive temperature rise, this protective function engages, and the output of inverter is cut off. A decrease of the input voltage of an inverter results in improper function of the control circuit. It also generates motor heat and causes low torque. [. . . ] -- -- -- -- -- -- -- -- -- F14 A80 A81 set Data HRW DRW value Data read/copy Y Y Y Y Y Y Y Y Y N N N N N Y Y Y Y N N N N N N -- -- -- -- -- -- -- -- -- A0 6 STOPBIT 0: 2 Setting only for digital operator Setting only for digital operator Setting only for digital operator A-31 Appendix 8 PID Function 1. Function The PID (Proportional, Integral, Differential) control functions can apply to controlling of the air (water) amount of a fan pump, etc. , as well as controlling of pressure within a fixed value. Set the reference signal according to the frequency setting method or the internal level. Set the feed-back signal according to the analog voltage input (0 to 5V or 0 to 10V) or analog current input (4 to 20 mA). [. . . ]