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F628
Under-Voltage Trip Detection Time
Program Protection Under-Voltage/Ridethrough
This parameter sets the time that the under-voltage condition must exist to
cause an Under-Voltage Trip.
This parameter is enabled at F627.
Regenerative Power Ridethrough Control Level
Program Protection Under-Voltage/Ridethrough
This parameter is activated during regeneration. It is used to set the low end of
the DC bus voltage threshold that, once the bus voltage drops below this
setting, activates the setting of
Activation may be the result of a momentary power loss or an excessive load on
the bus voltage.
During a Ridethrough, regenerative energy is used to maintain the control
circuitry settings for the duration of the Ridethrough; it is not used to drive the
motor.
The motor(s) of the system is/are stopped and then restarted automatically or
may continue seamlessly if so configured.
See
F302
for additional information on this parameter.
Note:
This parameter setting may increase deceleration times.
Brake Answer Delay Time
Program Protection Special Protection Parameters
This parameter is used in conjunction with the discrete input terminal setting
Brake Answerback Input (see
on this feature).
After activating the discrete input terminal Braking Request, the setting of this
parameter starts a count-down timer in which 1) a Brake Answerback Input
response must be received or 2) the brake must release before the timer expires.
Should this timer setting expire before the Brake Answerback Input is
returned or the brake releases, a Brake Fault (E-11) is incurred. Otherwise, the
brake releases and normal motor operations resume.
ASD Overload
Program Protection Overload
This parameter is used to protect the ASD from an over-current condition. The
standard overload rating of the P9 ASD is 120% operation for 60 seconds.
This setting allows for the overload protection to be switched from the standard
overload detection means (Thermal Detection and Overload) to thermal
detection only.
Settings:
0 — Thermal Detection + Overload
1 — Thermal Detection Only
The Thermal Detection Only selection is used when multiple devices are
installed horizontally as described on
200
F302
(Ridethrough Mode).
Table 6 on pg. 245
for additional information
pg.
15.
Direct Access Number — F628
Parameter Type — Numerical
Factory Default — 0.03
Changeable During Run — No
Minimum — 0.01
Maximum — 10.00
Units — Seconds
Direct Access Number — F629
Parameter Type — Numerical
Factory Default — (ASD-Dependent)
Changeable During Run — No
Minimum — 55
Maximum — 100
Units — %
Direct Access Number — F630
Parameter Type — Numerical
Factory Default — 0.0 (Disabled)
Changeable During Run — Yes
Minimum — 0.0 (Disabled)
Maximum — 10.0
Units — Seconds
Direct Access Number — F631
Parameter Type — Selection List
Factory Default — Thermal Detection +
Overload
Changeable During Run — No
P9 ASD Installation and Operation Manual
F631
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