Toshiba H9 operation manual F606 F610

F606		F610
Overload Reduction Starting Frequency	Direct Access Number —	F606
Program ⇒ Protection ⇒ Overload	Parameter Type — Numerical
This parameter is primarily used with V/f motors. It is used to reduce the	Factory Default — 6.00
	Changeable During Run — Yes
starting frequency at which the Overload Reduction function begins and is
useful during extremely low-speed motor operation.	Minimum — 0.00
During very low-speed operation the cooling efficiency of the motor decreases.	Maximum — 30.00
Lowering the start frequency of the Overload Reduction function aides in	Units — Hz
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 parameter F607 to the desired Overload Time Limit.
Motor 150% Overload Time Limit	Direct Access Number —	F607
Program ⇒ Protection ⇒ Overload	Parameter Type — Numerical
This parameter establishes a time that the motor may operate at 150% of its	Factory Default — 300
	Changeable During Run — Yes
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	Minimum — 10
F600 setting for the #1 motor).	Maximum — 2400
The unit will trip sooner than the time entered here if the overload is greater	Units — Seconds
than 150%.
ASD Input Phase Failure Detection	Direct Access Number —	F608
Program ⇒ Protection ⇒ Phase Loss	Parameter Type — Selection List
This parameter enables the 3-phase input power phase loss detection feature. A	Factory Default — Enabled
	Changeable During Run — No
loss of either input phase (R, S, or T) results in a trip.
Settings:
0 — Disabled
1 — Enabled
Low Current Detection Current Hysteresis Width	Direct Access Number —	F609
Program ⇒ Protection ⇒ Low Current Settings	Parameter Type — Numerical
During a momentary low-current condition, this parameter provides a current	Factory Default — 10
	Changeable During Run — Yes
threshold level to which the low-current condition must return within the time
setting of F612 or a Low Current Trip will be incurred.	Minimum — 1

Maximum — 20

Units — %

Low Current Trip

Program ⇒ Protection ⇒ Low Current Settings

This parameter Enables/Disables the low-current trip feature.

When enabled, the drive will trip on a low-current fault if the output current of the drive falls below the level defined at F611 and remains there for the time set at F612.

Settings:

0 — Disabled

1 — Enabled

Direct Access Number — F610

Parameter Type — Selection List

Factory Default — Disabled

Changeable During Run — No

184 H9 ASD Installation and Operation Manual