4-2 Function Mode „ Momentary Power Interruption Non-stop Deceleration Stop (b050 = 01) •After the power is shut off during operation, this function decelerates the Inverter to a stop while keeping the voltage below the momentary power interruption non-stop deceleration level (b052). •To use this function, remove the J51 connector cable connected between terminals Ro and To, and connect the cable from main terminal P to Ro, and from N to To. The cable size should be 0.75 mm 2 or larger.
•If the power is shut off during operation and the voltage falls below the momentary power interruption non-stop function starting voltage (b051), the frequency deceleration width decreases at the momentary power interruption non-stop deceleration starting width (b054), and then the Inverter decelerates for the momentary power interruption non-stop deceleration time (b053). •If an overvoltage condition (momentary power interruption non-stop deceleration level b052 or higher) occurs because of regeneration during deceleration, the Inverter is kept in the LAD STOP status until the overvoltage condition is reset. 4 Functions *1.
When the momentary power interruption non-stop deceleration level (b052) power interruption non-stop function starting voltage (b051), the Inverter performs this function by increasing the momentary power interruption non-stop deceleration level (b052) to the momentary power interruption non-stop function starting voltage (b051). (The set value will not be changed.) If b052 is lower than the incoming voltage or equivalent (DC voltage or equivalent after rectification [incoming voltage Ч √ 2]), the Inverter is brought into the LAD STOP status at power recovery during execution of this function, disabling deceleration.
(The Inverter will accept neither a STOP command nor frequency reference change until operation is complete.) Make sure that the b052 setting is higer than the normal incoming voltage or equivalent. *2. This function is not reset before the operation is complete and stopped. To run the Inverter after power recovery during this function, input the RUN command following the STOP command (RUN command OFF) after a stop condition. 4-60 Parameter No. Function name Data Default setting Unit b056 Integral time setting of non- stop function at momentary power interruption 0.000 to 9.999/10.00 to 65.53: Integral time for DC voltage constant control (b050 = 02, 03 only) 0.100 s