User manual YASKAWA VS MINI J7

[. . . ] VS mini J7 Series Instruction Manual COMPACT GENERAL-PURPOSE INVERTER (VOLTAGE VECTOR CONTROL) PREFACE YASKAWA's VS mini J7 is a compact and simple inverter that is as easy to use as a contactor. This instruction manual describes installation, maintenance, inspection, troubleshooting, and specifications of the VS mini J7. Read this instruction manual thoroughly before operation. YASKAWA ELECTRIC CORPORATION General Precautions · Some drawings in this manual are shown with the protective covers and shields removed, in order to illustrate detail with more clarity. Make sure all covers and shields are replaced before operating this product. [. . . ] FWD/REV is selected by and using or key to select FWD or REV. · REMOTE mode · Select remote mode The following two methods are used to select remote mode: 1. When the local / remote switching function is selected as multi-function input selection, turn OFF the input terminal to select remote mode. n02=0: Enables the digital operator (same with local mode) =1: Enables the multi-function input terminal (see fig. below) =2: Enables communications (refer to page 96) · Example for using the multi-function input terminal as operation reference (two-wire sequence) follows. For 3-wire sequencing, refer to page 85. · Operating (RUN /STOP commands) by communications (When option card is installed) Setting parameter n02 to 2 in REMOTE mode can give RUN / STOP commands by communication (MEMOBUS). For details, refer to page 96. 62 · Selecting Frequency Reference Frequency reference can be selected by the following methods. · Setting by operator Select REMOTE or LOCAL mode in advance. For the method of selecting the mode, refer to page 62. LOCAL mode Parameter n07 determines where the frequency reference is input from when in the local mode. n07 =0: Enables the setting by volume on digital operator (initial setting) Factory setting of the model with operator (without volume) is n07=1. =1: Enables the digital setting by digital operator, setting value is stored in parameter n21 (frequency reference 1). · Digital setting by digital operator Input frequency while FREF is illuminated (press ENTER after setting the desired frequency value). Frequency reference setting is immediately effective when n08 = 1 The ENTER key does not have to be pressed to enter the reference. It is not necessary to press the ENTER key to accept the reference. REMOTE mode Parameter n03 determines where the frequency reference is accepted from when in the REMOTE mode. n03 =0: Enables frequency reference setting by volume on digital operator. =1: Frequency reference 1 (parameter n21) is effective =2: Voltage reference terminal "FR" is effective (0 to 10V) (See the figure below) =3: Current reference terminal "FR" is effective(4 to 20mA) (Refer to page 90)* =4: Current reference terminal "FR" is effective (0 to 20mA) (Refer to page 90)* =6: Communication (Refer to page 97) 63 *NOTE: SWB must be set to the "I" position when using terminal "FR" as a current reference input. Example of frequency reference by voltage signal n03: 2 (factory setting) SW8 is set to "V" position when using terminal "FR" as a voltage reference (default setting) 64 · Setting Operation Conditions Reverse run prohibit (n06) The "Reverse run disabled" setting will not accept a reverse run command from the control circuit terminal or digital operator. This setting is used for applications where a reverse run command is undesirable. Setting 0 1 Description Reverse run enabled Reverse run disabled Multi-step speed selection Up to 8 preset references can be selected by using Multi-Function inputs. Example: 8-step speed reference n02=1 (operation mode selection) n03=1 (Frequency reference selection) n21=25. 0Hz (Frequency reference 1) n22=30. 0Hz (Frequency reference 2) n23=35. 0Hz (Frequency reference 3) n24=40. 0Hz (Frequency reference 4) n25=45. 0Hz (Frequency reference 5) n26=50. 0Hz (Frequency reference 6) n27=55. 0Hz (Frequency reference 7) n28=60. 0Hz (Frequency reference 8) When all multi-function reference inputs are OFF, frequency reference selected by parameter n03 (frequency reference selection) becomes effective. n36=2 (Multi-function contact input terminal S2) n37=6 (Multi-function contact input terminal S3) n38=7 (Multi-function contact input terminal S4) n39=8 (Multi-function contact input terminal S5) 65 Operating at Jog frequency reference By inputting a jog command and then a forward or (reverse) run command, operation is enabled at the jog frequency set in n29. When multi-step speed references 1, 2, 3 or 4 are input simultaneously with the jog command, the jog command has priority. Name Jog frequency reference Jog command parameter No. n29 n36 to n39 Setting Factory setting: 6. 00Hz Set to "10" for any parameter. 66 · Adjusting speed setting signal The relationship between the analog input signal and internal (terminal "FR") frequency reference can be set by parameters n41 and n42. FREQUENCY REFERENCE (a) Frequency reference gain (n41) The analog input voltage level for the maximum output frequency (n09) can be set in units of 1%. (maximum output frequency n09=100%) Factory setting : 100% (b) Frequency reference bias (n42) The frequency reference provided when the analog input is 0V (4mA or 0mA) can be set in units of 1%. (Maximum output frequency n09=100%) Factory setting : 0% Example settings: · To operate the inverter with frequency reference of 0% to 100% at 0 to 5V input Gain n41 = 200% Bias n42 = 0% 67 · To operate the inverter with frequency reference of 50% to 100% at 0 to 10V input Gain n41 = 100% Bias n42 = 50% 68 Adjusting frequency upper and lower limits Frequency reference upper (n30) and lower (n31) limits determines the range over which the inverter will operate. [. . . ] In particular, please take care to observe all installation instructions regarding proper EMC immunity, e. g. Compliance with the EMC legislation limits is the responsibility of the machine or system manufacturer. RCCBs For information on the use of RCCBs with inverters please contact your supplier or Yaskawa representative. Operation In some systems it may be necessary to install additional monitoring and protective facilities to comply with the applicable safety and accident prevention regulations. [. . . ]