YASKAWA V7 Technical Manual

Also see for SI-T/ V7: Instructions

Contents

5-10The Drive allows selection of up to twenty-three frequency references. Three are analog inputs,sixteen are digital presets (selected with multi-function inputs), one is a jog input, one is a pulsetrain input, one is via serial communications (MODBUS), and one is from an option cable (seeparagraph 5.32).A. Frequency Reference via Analog InputIn order to set the Drive so the frequency reference comes from the analog input, set parametern004 as shown in the table below:(1) SW2 consists of two separate slide switches and can be found just above the upper row of control circuit terminals.The switch towards the bottom (labeled “2”) connects a 250Ω resistor from terminal FR to FC when set to the “on”position (to the right). NOTE: All power must be removed from the Drive before SW2 can be set.B. Frequency Reference via Digital PresetsIn order to set the Drive so the frequency reference comes from the digital presets, the followingparameters need to be set:Depending upon how many preset references are required determines the actual settings of n050thru n056. Several examples are listed below.PARAMETER SETTING DESCRIPTIONn024 Userthru Set Eight Frequency Referencesn031n050 6, 7, 8, Sets the multi-function inputs so selection of the various references isthru and/or possible with contact closures.n056 9n120 Userthru Set Eight More Frequency Referencesn127PARAMETER SETTING DESCRIPTION2 Sets terminal FR for a voltage input (0 to 10V) Set SW2 switch 2 to Off (1)n004 3 Sets terminal FR for a current input (4 to 20mA) Set SW2 switch 2 to On (1)4 Sets terminal FR for a current input (0 to 20mA) Set SW2 switch 2 to On (1)5.11 FREQUENCY REFERENCE SELECTION