4-2 Function Mode FREQ adjuster Frequency reference source A001 F001 set value Terminal block Σ + Output frequency setting ModBus communication +/– Logic operation output Addition direction setting A146 A145 Frequency addition [ADD] Multi-function input 4 VR Adjustment Function Functions For each item, refer to "External Frequency (Voltage/Current) Adjustment" (page 4-10). Momentary Power Interruption/Trip Retry (Restart) This function allows you to determine the operation performed when a trip occurs due to momentary power interruption, undervoltage, overcurrent, or overvoltage. Set the retry condition according to your system. 4-27 Parameter No.
Function name Data Default setting Unit A151 VR start frequency 0.00 to 400.0 0.0 Hz A152 VR end frequency 0.00 to 400.0 0.0 Hz A153 VR start ratio 0. to 100. 0. % A154 VR end ratio 0. to 100. 100. % A155 VR start selection 00: External start selection 01: 0 Hz 01 ⎯ Related functions A005, A011 to A015, A016, A101 to A105, AT input Parameter No. Function name Data Default setting Unit b001 Retry selection 00: Outputs an alarm after a trip. 01: Restarts from 0 Hz at retry. 02: Matches the frequency at retry and starts. 03: Starts the frequency pull-in retry and trips after deceleration stop.
00 ⎯ b002 Allowable momentary power interruption time 0.3 to 25.0 Trips if the momentary power interruption is within the set time. If not, it restarts. 1.0 s b003 Retry wait time 0.3 to 100.0 Time from recovery to restart 1.0 s