27
Fn_30 : Refer to Fn_05
Restart after momentary power loss
Fn_31 :
Momentary power loss ride through time : 0 - 2 sec
Fn_32 :
xxx0: Disable
xxx1:
Enable
1. Inverter will stop when voltage is lower than low voltage protection level. Inverter can restart
automatically by speedsearch if power can be restored in the time set by Fn_31.
2. Time for momentary power loss will be varied by each models, range will be restored from
0.7
sec to 2 sec.
3.
Inverter will trip after power loss if Fn_32=xxx0, LV-C will show on digital operator, and
inverter cannot restart ( Fn_34, Fn_35 ineffective)
4.
When Fn_32=xxx1, Number of auto restarts will be unlimited if time of power loss is
less than the setting in Fn_31; Number and time of auto restarts will be determined by
the setting of Fn_34 and Fn_35 if time of power loss is greater than the setting of Fn_31
Fn_33 : Reserved
Auto restart
Fn_34 : Auto restart interval : 0 - 800 sec
Fn_35 : Number of auto restart attempts (0 -10) times
1. Auto restart will be ineffective if Fn_35 = 0
2. If Fn_35 > 0, Fn_34 = 0, Inverter will use speed search to pull the frequency back to the
frequency before the trip from free run status in 0.5 sec and then accel or decel to preset
frequency.
3. If Fn_35 > 0, Fn_34 > 0, Inverter will free run for a certain period ( set by Fn_34) and then
accel or decel from Fn_42 to preset frequency.
4. Auto restart will be ineffective during decel period after stop command or DC braking.
5. Number of auto restarts will be reset under following conditions:
(1). Fault is not detected for 10 minutes (either on run or stop mode)
(2). Press “Reset” key or reset terminal of terminal block is on.
6. Fn_97 = xxx0 : Faulty terminal will disable when auto restart is working
= xxx1 : Faulty terminal will enable when auto restart is working
