Rockwell Automation 20P PowerFlex Digital DC Drive - Manual (Page 300)

300 Rockwell Automation Publication 20P-UM001I-EN-P - February 2013
Appendix C 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
1380 [Drive Alarm 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
Yes
Powerup Terminated!
Normal Mode
No
No
No
Powerup Start
Is the terminal block Run,
Run Forward or Run Reverse
Input Closed?
Yes
Yes
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.