F21: Multi-function Output Terminal
Use function F21 to change the function of output terminal from the factory
setting of “Fault” signal (F21 = “003”) to either “Running” signal (F21 = “001”) or
“Frequency Reached” signal (F21 = “002”).
F22: Reverse Enable
Function F22 can be used to change the reverse instruction from the factory
setting of “REV command enabled” (F22 = “000”) to the alternate setting of
“REV command disabled” (F22 = “001”). NOTE: When F04 is set to “001”
(reverse), F22 can not be set to “001”, indication displays “LOC”. F04 must be
change to “000” before setting F22 to “001”.
F23: Momentary Power Loss Ride-Through Enable
Function F23 can be used to change the restart after momentary power loss
from the factory setting of “restart enabled” (F23 = “000”) to the alternate setting
of “restart disabled” (F23 = “001”).
1) When AC power supply is temporarily drops below the low voltage
protection level, the inverter will stop output immediately. If the power
source resumes within 2 seconds, the inverter can restart by speed
search (start tracing from the breaking frequency), otherwise the
inverter break away from “LVC”.
2) When F23 = “000”, if the transient power off duration is less than 2 sec.,
the inverter resume operation via speed search at 0.5 sec after power
up. The restart times is not limited by F24. If the transient power off
duration is longer than 2 sec., it is up to the setting on the F24 to
decide if the inverter can be automatically restarted.
3) When F23 = “001”, the inverter break from operation immediately after
the transient power off and indicate “LVC”. It can not be restarted. (Not
controlled by F24)
F24: Number of Auto Restart Attempts
Function number F24 can be used to change the number of auto-restart times
after momentary power loss from the factory setting of zero (F24 = “000”) to any
number between zero (F24 = “000”) and five (F24 = “005”).
1) When F24 = “000”, the inverter will not automatically restart after
malfunction break from operation.
2) When F24 > “000” , the inverter will resume operation via SPEED
SEARCH at 0.5 second after malfunction break and turn output from
inertial operation to the operating frequency before break-up. After that,
the inverter will accelerate or decelerate to current frequency setting.
3) When the inverter is set to deceleration or DC breaking, the transient
restart procedure is not performed.
4) When either of following situation happen, the transient restart count will
be reset:
a.
No additional malfunction (in operation or stop) occurs within 10
minutes.
b.
Press RESET button or external terminal RESET is ON.
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