INVERTER,S SPEED SEARCH DECELERATION TIME AND TIMER FUNCTION OFF DELAY TIME .

SPEED SEARCH DECELERATION TIME .
the output frequency deceleration time for speed search operation is set in unit of seconds.
note: set the time from the output frequency to the minimum frequency to be the deceleration time.
for the speed search deceleration time (b3 -03 ),set the output frequency deceleration time for while.the speed search is being performed. set the time required to deceleration from the maximum output frequency to 0 HZ .when the speed search and DC injection braking are set ,set the minimum base block time set the time to wait for the motor,s residual voltage to dissipate . if an over current  is detected when starting to prevent a fault from occurring.

TIMER FUNCTION OFF DELAY TIME.
timer function on delay time used to set the timer function output .on delay time (dead band ) for the timer function input , in unit for second .
note :effective when the timer function is set for multi function input,s . the timer functions are enabled when the timer function input (setting :18) and the timer function output ( setting :12)are set for the multi function input and multi function output respectively . these inputs and outputs server as general purpose 1/0 . chattering of sensor switches , and so on  , can be prevented by setting a delay time . when the timer input on time is longer than the value set for b4 - 01 (timer function on - delay time) the timer function output turns on.

inverter,s speed search selection at start and speed search operating current.

speed search selection at start.
used to set the speed search function when the operation command is in put .0: motor starts from minimum output frequency. 1:speed search is performed from maximum output frequency and motor is started.(in control methods with pg ,i,e. v/f with pg).
note:

set"1"to use the speed search function . a speed search is performed each time the run command is input . to use speed search freely in control methods without pg, i,e..,v/f control and open -loop vector control. set the multi -function contact input selection (h 1  - 0 1  to  h 1 - 0 6 ) to or 62 (external search command).

speed search operating current.
set the speed search operating current as a percentage of the inverter,s rated output current, with the inverter,s rated output current taken as 100%.
note : for the speed search operating current (b 3 - 0 2 ),set the operating current for the speed search , if restarting is not possible with setting ,then lower the setting.

inverter,s dc injection braking time at stop and magnetic flux compensation volume.

 dc injection braking time at stop.
used to set the time to perform dc injection braking(initial excitation for flux vector control)in units of 1 second .
note: to set b2-04 to be the dc braking performing time until te motor stops. used to prevent the motors coasting when the motor is not working .

magnetic flux compensation volume.
the compensation value of magnetic flux is set as a percentage of idle load current with taking the idle load current as 100%.
note: when b2-08 is set to be 100%'the dc braking current(initial excitation) at start will be comparatively big at the beginning and the flux in the motor can arrive very soon. when b2-08 is set to be 200%'the arriving time will be cut to be the half.
normally 'do not set b2-08 to be below 00%'since the flux arrive slowly' however the operation when b2-08=0%and b2-08=100% is same and both of the flux are achieved via setting of dc injection current (b2-02).
as the flux compensation value (b2-08) is increased the starting sound of the motor will be bigger.
the time parameters when the motors flux reach to a certain value are set by e2 and can be computed by the following formula. time of the secondary circuit t2={(e2-012-e2-032)/(2~xe2-02xe2-03)}.
when the control start was deferred because of the setting of b2-03 please do not use the funtion flux compensation but to use the dc braking command of multi-function input terminal (set the value to be 60)and establish a Magnetic field according to the motors flux before it stops .

inverter,s dc injection braking time at start.

 dc:injection braking time at start..


used to set time to perform dc injection braking (initial excitation for flux vector control) at
start in units of 1 second
note:
used to stop coasting motor and restart it. when the set value is  o, dc injection braking at start is not
performed.for the dc injection braking time at start (b2 -03) set the dc injection braking operation time for when
 the motor started. in case that the multi-functional input terminal's dc injection breaking current command works at
the same time the dec injection breaking can be achieved only within the set time of b2-03 and the input terminal
has to be set a open.used to be the function of inition exciting and zero speed control in place of dc injection
barking in the mode of flux vector control.the initation function and zero speed control function depends on
setting of b1-05(the operating option below the minimum output current(E1-09).

inverter,s Zero speed level (dc injection braking starting frequency )

Zero speed level (dc injection braking starting frequency ).

used to set the frequency which starts DC injection breaking (the initial excitation for flux vector control) in unit of Hz

note:

the DC braking function to supply  DC current to motor and decelerate  the motor.this happens in the following two cases.DC injection braking time at start Effective for temporarily stopping and then restarting,without regenerative processing, a motor coasting  by inertia DC injection  braking time at stop.used to prevent coasting by inertia  when the motor is not completely.for the zero level (b2_01),set the frequency for beginning DC for the injection braking for deceleration.if the excitation level is lower then the minimum output frequency(E1_09),the dc injection braking will begin from the minimum output frequency.in flux vector control mode,DC injection braking becomes  the initial excitation starting frequency at the time of deceleration.in that case,braking starts from the excitation level regardless of the minimum output frequency setting.the excitation level is also used as the operating frequency for zero servo function (for flux vector control only).for the DC injection barking current (b2_ 04),set the value for the current that is output at the time of DC injection barking DC injection braking current is set as a percentage of invertor rated output current,with the rated output current taken as 100%.for the DC injection braking operating time for when the motor is stopped.

inverter,s operation selection for setting of e1-o9 or less and control input scans.

 

                             








 operation selection for setting of e1-o9 or less

used to set the method of operation when the frequency reference input is less than the minimum output frequency (e1-o9).only effective in the mode of pg vector control.
0:run at frequency reference (e1-o9 not effective).
1:stop (frequency below e1-o9).
2:run at the frequency set in e1-o9.
3:run at zero speed (frequencies below e1-o9).
note: this is the operation method when a frequency command which is below minimum frequency was input.

                                                         control input scans

used to set the responsiveness of the control input (forward/reverse and multi-function inputs ).
0:tow scans every 2 ms,used for fast responses .
1: tow scans every 5 ms (use for possible malfunction due to noise ).
note : please set the responsiveness of program input (forward/reverse,multi-function inputs).

inverter,s stopping method selection and prohibition of reverse operation .

                                               

 stopping method selection

used to set the stopping method . 0:ramp to stop . 1:coast to stop . 2:dc injection braking stop (stops faster than coast to stop . no regenerative operation) 3:coast to stop with timer run commands are disregarded during deceleration .

note :
please set the stopping method while the stopping command is input . only setting 0 and 1 can be used with flux vector control.

                                               prohibition of reverse operation

to set reverse operation. 0:reverse enable .1:reverse disable .

note :

when this command was input ,the function to set the motor,s forward operation or reverse operation will be disable . it is used in the application where reverse operation is prohibited .