Yaskawa GPD 506/P5 to F7 - Manual (Page 49)

Appendix 3- Parameter Cross Reference
PL.F7.05 Page 49 of 54
GPD506/P5 Parameter F7 Parameter
Param
No.
Nxxx
Parameter
Name
Description or Selection Description or Selection
Parameter
Name
Param.
No.
071 Torque comp gain Set unit: 0.1 and set range: 0.0-3.0 0.00 to 2.50
This parameter sets the gain for the Drive’s
automatic torque boost function to match
the Drive’s output voltage to the motor
load. This parameter helps to produce
better starting torque. It determines the
amount of torque or voltage boost based
upon motor current, motor resistance, and
output frequency. Torque Compensation Gain C4-01
072 Stall prevention during
deceleration 0: Stall prevention function none at
deceleration
1: The stall prevention is provided while
decelerating. When using a braking resistor, use setting
“0”. Setting “3” is used in specific
applications.
0: Disabled - The Drive decelerates at the
active deceleration rate. If the load is too
large or the deceleration time is too
short, an OV fault may occur.
1: General Purpose - The Drive decelerates
at the active deceleration rate, but if the
main circuit DC bus voltage reaches the
stall prevention level (380/760Vdc),
deceleration will stop. Deceleration will
continue once the DC bus level drops
below the stall prevention level.
2: Intelligent - The active deceleration rate
is ignored and the Drive decelerates as
fast as possible w/o hitting OV fault
level. Range: C1-02 / 10.
3: Stall Prevention w/ Braking Resistor Stall Prevention Selection
During Deceleration
L3-04
Selects the stall prevention method used to
prevent excessive
current during acceleration.
0: Disabled - Motor accelerates at active
acceleration rate. The motor may stall if
load is too heavy or accel time is too
short.
1: General Purpose - When output current
exceeds L3-02 level, acceleration stops.
Acceleration will continue when the
output current level falls below the L3-02
level.
2: Intelligent - The active acceleration rate
is ignored. Acceleration is completed in
the shortest amount of time without
exceeding the current value set in L3-02.
Stall Prevention Selection
During Accel
L3-01
073 Stall prevention level
during acceleration
Set unit: 1%
Set range: 30-200%
(100%= rated current of inverter)
(Stall prevention disabled when set point
=200%)
0 to 200
This function is enabled when L3-01 is “1”
or “2”.Drive rated current is 100%.
Decrease the set value if stalling or
excessive current occurs with factory
setting. Stall Prevention Level
During Acceleration
L3-02
074 Stall prevention level
during run Set unit: 1%
Set range: 30-200%
(100%= rated current of inverter)
(Stall prevention disabled when set point
=200%) Selects the stall prevention method to use
to prevent Drive faults during run.
0: Disabled - Drive runs a set frequency.
A heavy load may cause the Drive to trip
on an OC or OL fault.
1: Decel Time 1 - In order to avoid stalling
during heavy loading, the Drive will
decelerate at Decel time 1 (C1-02) if the
output current exceeds the level set by
L3-06. Once the current level drops
below the L3-06 level, the Drive will
accelerate back to its frequency reference
at the active acceleration rate.
2: Decel Time 2 - Same as setting 1 except
the Drive decelerates at Decel Time 2
(C1-04). When output frequency is 6Hz
or less, stall prevention during running is
disabled regardless of L3-05 setting.
Stall Prevention Selection
During Running
L3-05