4-2 Function Mode Operation Frequency Function This function makes calculations for two inputs and reflects the result as the output frequency. 4 •Inputs FV and FI cannot be set simultaneously. Do not connect the signal lines for inputs FV and FI simultaneously. Functions Digital Operator FREQ adjuster A141 A143 Input A Input FV Input FI ModBus communication Result of calculation Output frequency A A B B A B + – Digital Operator FREQ adjuster A B Ч Input B Input FV Input FI ModBus communication A142 Frequency Addition Function This function adds or subtracts the constant frequency set in A145 to/from the output frequency. Select addition or subtraction in A146.
•Inputs FV and FI cannot be set simultaneously. Do not connect the signal lines for inputs FV and FI simultaneously. 4-26 Parameter No. Function name Data Default setting Unit A141 Operation frequency input A setting 00: Digital Operator (F001) 01: Digital Operator (FREQ adjuster) 02: Input FV 03: Input FI 04: RS485 communication 01 ⎯ A142 Operation frequency input B setting 02 ⎯ A143 Operator selection 00: Addition (A + B) 01: Subtraction (A - B) 02: Multiplication (A × B) 00 ⎯ Related functions A001 = 10 Parameter No. Function name Data Default setting Unit A145 Frequency addition amount 0.0 to 400.0 0.0 Hz A146 Frequency addition direction 00:
Adds the A145 value to the output frequency 01: Subtracts the A145 value from the output frequency 00 ⎯ Related functions C001 to C005, ADD input