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Allen-Bradley PowerFlex 70 Enhanced Control User Manual

Allen-Bradley PowerFlex 70 Enhanced Control
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108 Start Permissives
Absolute Min Mode
This mode regulates to the smallest absolute value of torque or speed, when the
torque reference and torque generated from the speed regulator are compared.
Position/Speed Profile Mode
The drive operates as a speed or position regulator as determined by the Profile Step
parameters (720-877) and Setup parameters (705-719). See "Position Indexer/
Speed Profiler" on page 61
for complete description of this function.
Start Permissives Start permissives are conditions required to permit the drive to start in any mode –
run, jog, auto-tune, etc. When all permissive conditions are met the drive is
considered ready to start. The ready condition is available as the drive ready status.
Permissive Conditions
1. No faults can be active.
2. No type2 alarms can be active.
3. The TB Enable input (if configured) must be closed.
4. The DC bus precharge logic must indicate it is a start permissive.
5. All Stop inputs must be negated (See special Digital Inputs Stops Configuration
issues below).
6. No configuration changes (parameters being modified) can be in-progress.
If all permissive conditions are met, a valid start, run or jog command will start the
drive. The status of all inhibit conditions, except for item 6
above, are reflected in
[Start Inhibits].
700VC
ONLY
700VC
ONLY
70EC
700VC
700H
✔✔

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Allen-Bradley PowerFlex 70 Enhanced Control Specifications

General IconGeneral
BrandAllen-Bradley
ModelPowerFlex 70 Enhanced Control
CategoryDC Drives
LanguageEnglish

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