PowerFlex Digital DC Drive User Manual - Publication 20P-UM001C-EN-P - July 2008
C-24 Application Notes
Start At Powerup
The “Start At Powerup” function allows you to automatically resume
running at commanded speed after drive input power is restored, a run
command is issued and all of the start permissive conditions indicated in the
diagram below are met. To enable this feature, parameter 1344 [Start At
Powerup] must be set to 1 “Enable”.
In addition, A delay time of up to 10800 seconds (3 hours) can be
programmed in parameter 1345 [Powerup Delay]. An automatic drive
restart is not possible before the delay time has expired. If a “Start”, “Run”
or “Stop” command is asserted before the time in this parameter expires, the
“Start At Powerup” function will be aborted.
During the time specified in parameter 1345 [Powerup Delay], the alarm
indicator “ ” is displayed on the HIM and bit 12 “PwrUp Start” of
parameter 380 [Drive Status 1] is set to “1”.
!
ATTENTION: Equipment damage and/or personal injury may
result if this parameter is used in an inappropriate application. Do
not use this function without considering applicable local,
national and international codes, standards, regulations or
industry guidelines.
[Powerup Delay]
Time Expired?
Start At PowerUp
Ye s
Powerup Terminated!
Normal Mode
No
No
No
Powerup Start
Is the terminal block Run,
Run Forward or Run Reverse
Input Closed?
Ye s
Ye s
All Start Permissives Met?
1. No fault conditions are present.
2. No Type 2 alarm conditions are
present.
3. The terminal block programmed
enable input is closed.
4. All Stop inputs are maintained.
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