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F605
Output Phase Failure Detection
Program Protection Phase Loss
This parameter Enables/Disables the monitoring of each phase of the three-
phase output signal (U, V, or W) of the ASD. If either line is missing, inactive,
or not of the specified level, the ASD incurs a trip.
Note:
Autotune checks for phase failures regardless of this setting.
Settings:
0 — Disabled
1 — Enabled
Overload Reduction Start Frequency
Program Protection Overload
This parameter is primarily used with V/f motors. It is used to reduce the
starting frequency at which the Overload Reduction function begins and is
useful during extremely low-speed motor operations.
During very low-speed operation, the cooling efficiency of the motor decreases.
Lowering the start frequency of the Overload Reduction function aides in
minimizing the generated heat and precluding an Overload trip.
This function is useful in loads such as fans, pumps, and blowers that have the
square reduction torque characteristic.
Set
F607
to the desired Overload Time Limit.
Motor 150% Overload Time Limit
Program Protection Overload
This parameter establishes a time that the motor may operate at 150% of its
rated current before tripping. This setting applies the time/150% reference to
the individual settings of each motor (e.g., this setting references 150% of the
F600
setting for the 1 motor).
The unit will trip sooner than the time entered here if the overload is greater
than 150%.
Suppression of Inrush Current Timing
Program Protection Special Protection Parameters
The startup inrush current may be suppressed. This parameter Enables/Disables
the inrush current suppression function.
Settings:
0 — Disabled
1 — Enabled
158
Direct Access Number — F605
Parameter Type — Selection List
Factory Default — Disabled
Changeable During Run — No
Direct Access Number — F606
Parameter Type — Numerical
Factory Default — 6.00
Changeable During Run — Yes
Minimum — 0.00
Maximum — 30.00
Units — Hz
Direct Access Number — F607
Parameter Type — Numerical
Factory Default — 600
Changeable During Run — Yes
Minimum — 10
Maximum — 2400
Units — Seconds
Direct Access Number — F609
Parameter Type — Selection List
Factory Default — Disabled
Changeable During Run — No
WX9 ASD Installation and Operation Manual
F609
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