188
H9 ASD Installation and Operation Manual
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
.
Direct Access Number — F628
Parameter Type —
Numerical
Factory Default —
0.03
Changeable During Run —
No
Minimum — 0.01
Maximum — 10.00
Units — Seconds
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
F302
(Ridethrough Mode).
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 are stopped and then restarted automatically or may
continue seamlessly if so configured.
See
F302
for more information on this parameter.
Note:
This parameter setting may increase deceleration times.
Direct Access Number — F629
Parameter Type —
Numerical
Factory Default —
(ASD-Dependent)
Changeable During Run —
No
Minimum — 55
Maximum — 100
Units — %
Brake Answer Wait Time
Program
Protection
Special Protection Parameters
This parameter is used in conjunction with the discrete input terminal setting
Brake Answerback Input
(see
Table 5 on pg. 234
for more information 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.
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
ASD Overload
Program
Protection
Overload
This parameter is used to protect the ASD from an over-current condition. The
standard overload rating of the H9 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 Det Overload
1 — Thermal Detection Only
The
Thermal Detection Only
selection is used when multiple devices are
installed horizontally as described on
pg. 15
.
Direct Access Number — F631
Parameter Type —
Selection List
Factory Default —
Thermal Det
Overload
Changeable During Run —
No
F628
F631
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