Application Notes C-21
Standard Control Option
When Start At Powerup in 2 wire control is configured, the drive will
start if the start permissive conditions are met within 10 seconds of drive
power being applied. An alarm will be annunciated from application of
power until the drive actually starts, indicating the powerup start attempt
is in progress. If the drive has not started within the 10 second interval,
the powerup start attempt will be terminated.
Vector Control Option
A powerup delay time of up to 30 seconds can be programmed through
[Powerup Delay], parameter 167. After the time expires, the drive will
start if all of the start permissive conditions are met. Before that time,
restart is not possible.
Start At PowerUp
[Powerup Delay]
Time Expired?
Vector Control Option
Start At PowerUp
Ye s
Powerup Terminated!
Normal Mode
No
No
No
10 Second Limit
Expired?
Standard Control Option
Powerup Start Powerup Start
Is the terminal block Run,
Run Forward or Run Reverse
Input Closed?
Ye s
Powerup Terminated!
Normal Mode
Ye s
Ye s
No
No
No
All Start Permissives Met?
1. No fault conditions present.
2. No Type 2 alarm conditions present.
3. The terminal block programmed
enable input is closed.
4. The Stop input (from all sources) is
received.
Is the terminal block Run,
Run Forward or Run Reverse
Input Closed?
Ye s
Ye s
All Start Permissives Met?
1. No fault conditions present.
2. No Type 2 alarm conditions present.
3. The terminal block programmed
enable input is closed.
4. The Stop input (from all sources) is
received.
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