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Tuesday, 31 January 2017
INVERTER,S SPEED SEARCH DECELERATION TIME AND TIMER FUNCTION OFF DELAY 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.
Monday, 30 January 2017
inverter,s speed search selection at start and speed search operating current.
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.
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