F626 | F630 |
Overvoltage Stall Level
Program ⇒ Protection Parameters ⇒ Stall
This parameter sets the upper DC bus voltage threshold that, once exceeded, will cause an Overvoltage Stall. An Overvoltage Stall increases the output frequency of the drive during deceleration for a specified time in an attempt to prevent an Overvoltage Trip.
If the overvoltage condition persists for over 4 mS, an Overvoltage Trip will be incurred.
Note: This feature may increase deceleration times.
Direct Access Number — F626
Parameter Type — Numerical
Factory Default —
Changeable During Run — Yes
Minimum — 50.0
Maximum — 250.0
Units — %
Undervoltage Trip | Direct Access Number — | F627 |
Program ⇒ Protection Parameters ⇒ Undervoltage/Ridethrough | Parameter Type — Check Box | |
This parameter Enables/Disables the Undervoltage Trip function. | Factory Default — Disabled |
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With this parameter Enabled, the ASD will trip if the undervoltage condition | Changeable During Run — No | |
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persists for a time greater than the F628 setting. |
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A |
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If Disabled the ASD will stop and not trip; the FL contact is not active. |
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Settings: |
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Disabled |
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Enabled (box checked) |
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Undervoltage Detection Time | Direct Access Number — | F628 |
Program ⇒ Protection Parameters ⇒ Undervoltage/Ridethrough | Parameter Type — Numerical | |
This parameter sets the time that the undervoltage condition must exist to cause | Factory Default — 0.03 |
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an Undervoltage trip when this function is enabled at F627. | Changeable During Run — No | |
| Minimum — 0.00 |
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| Maximum — 10.00 |
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| Units — Seconds |
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Undervoltage Stall level | Direct Access Number — | F629 |
Program ⇒ Protection Parameters ⇒ Undervoltage/Ridethrough | Parameter Type — Numerical | |
This parameter sets the low end of the DC bus voltage threshold that, once it | Factory Default — | |
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drops below this setting, will activate the setting of F302 (Ridethrough Mode). | Changeable During Run — Yes | |
Activation may be the result of a momentary power loss or an excessive load on | Minimum — 50.00 |
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the bus voltage. Once activated, the system will attempt to maintain the bus |
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Maximum — 100.0 |
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voltage level set here until the motor stops. |
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Note: This feature may decrease deceleration times. | Units — % |
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Brake Trouble Internal Timer | Direct Access Number — | F630 |
Program ⇒ Protection Parameters ⇒ Brake Fault Timer | Parameter Type — Numerical | |
This parameter is used in conjunction with the discrete input terminal setting | Factory Default — 0.00 |
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64 [System Consistent Sequence (BA: braking answer)] (see item 64 of Table | Changeable During Run — Yes | |
8 on pg. 76 for further information on this feature). | Minimum — 0.00 |
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After activating the discrete input terminal System Consistent Sequence (B: | Maximum — 10.00 |
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braking release), the setting of this parameter defines a window of time in | Units — Seconds |
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which 1) a Braking Answer response must be received or 2) the brake must |
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release. |
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Should this timer setting expire before the Braking Answer is returned or the |
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brake releases, a Brake Fault is incurred. Otherwise, the brake releases and |
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normal motor operations resume. |
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G7 ASD Operation Manual |
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