134
GX9 ASD Installation and Operation Manual
Ridethrough Time
Program
Protection
Undervoltage/Ridethrough
In the event of a momentary power outage, this parameter determines the length
of the
Ridethrough
time.
The
Ridethrough
will be maintained for the number of seconds set using this
parameter.
See parameter
for more information on the Ridethrough function.
Note:
The actual
Ridethrough Time
is load-dependent.
Direct Access Number — F310
Parameter Type —
Numerical
Factory Default —
2.0
Changeable During Run —
Yes
Minimum — 0.0
Maximum — 320.0
Units — Seconds
Forward/Reverse Disable
Program
Frequency
Forward/Reverse Disable
This parameter
Enables/Disables
the
Forward Run
or
Reverse Run
mode.
If either direction is disabled, commands received for the disabled direction will
not be recognized.
If both directions are disabled, the received direction command will determine
the direction of the motor rotation.
Settings:
0 — Permit All
1 — Disable Reverse Run
2 — Disable Forward Run
3 — Direction by Command Permitted
Direct Access Number — F311
Parameter Type —
Selection List
Factory Default —
Permit All
Changeable During Run —
No
Scan Rate
Program
Protection
Retry/Restart
In the event of a momentary power outage, the output signal of the drive will
cease. Upon restoration of power, the drive will output a low-level signal that
will be used to determine the rotation speed of the rotor.
The low-level signal will start scanning the motor at the
Maximum Frequency
and decrease until it reaches 0.0 Hz or it matches the signal produced by
the turning rotor. Once the rate of rotation is determined, the drive will provide
the normal output to engage the motor from its present speed.
This parameter determines the rate at which the scanning signal goes from
Maximum Frequency
to 0.0 Hz.
See F301 for additional information on this parameter.
Direct Access Number — F312
Parameter Type —
Numerical
Factory Default —
(ASD-Dependent)
Changeable During Run —
Yes
Minimum — 0.50
Maximum — 2.50
Lock-On Rate
Program
Protection
Retry/Restart
After a momentary power outage, the ASD may have to startup into a spinning
motor. The
Lock On Rate
is the difference between the time that the RPM of
the motor is determined by the ASD and the time that the ASD outputs a drive
signal to the motor.
See
for additional information on this parameter.
Direct Access Number — F313
Parameter Type —
Numerical
Factory Default —
(ASD-Dependent)
Changeable During Run —
Yes
Minimum — 0.50
Maximum — 2.50
Содержание GX9
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