LS Industrial Systems SV-iV5 Series - Fun_51(Decel Time When BX Is ON); Fun_52(Pre-Excitation); Fun_53(Hold Time)

6. Function Description
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6) FUN_51(Decel time when BX is ON)
When the motor should be stopped immediately in case of emergency, BX on the control circuit terminal can be
used. When BX is ON, the motor decelerates to a stop within ‘Emergency deceleration time’ set at FUN_51. But, if the
motor does not stop within the deceleration time, it rotates freely after the deceleration time. If the motor is
intended to stop at the instant BX is ON, FUN_51 is set to ‘0’.
Code LCD display Description Setting range Unit Factory setting
FUN_51 BX Time
Deceleration time
for emergency stop
0.0 ~ 6000.0 sec 0.0
7) FUN_52 (Pre-excitation)
FUN_52 (Motor Pre-excitation Time) can be used for the flux build-up in the induction motor to obtain the best control
characteristic. FWD and REV LED blink concurrently during the time of pre-excitation.
z FUN_52 is activated only when FUN_02(Spd Ref Sel) is set to Keypad1 or Keypad2.
Code LCD display Description Setting range Unit Factory setting
FUN_52 PreExct Time Pre-excitation time 0 ~ 10000 ms 0
8) FUN_53(Hold Time)
The motor maintains the zero speed for ‘Motor Hold Time’ after the motor decelerates to a stop.
Code LCD display Description Setting range Unit Factory setting
FUN_53 Hold Time Motor Hold Time 100 ~ 10000 ms 1000
Flux current
Speed
Pre-excitation
time
ON
Speed control zone
OFF
Run command
Time
Stopping
200% of rated
flux current
500(ms)