122
SPX advanced – description of parameters
SPX ADVANCED APPLICATION MANUAL
SVCH0203—October 2017 www.eaton.com
Code
ID
Description
Notes
P1.9.5.3
615
Zero speed time at start “Start 0SpeedTime”
After giving the start command the drive will remain at zero speed for the time defined
by this parameter. The ramp will be released to follow the set frequency/speed
reference after this time has elapsed counted from the instant when the command was
given.
P1.9.5.4
638
Zero speed time at stop ID616 “stop 0 SpeedTime”
The drive will remain at zero speed with controllers active for the time defined
by this parameter after reaching the zero speed when a stop command is
given. This parameter has no effect if the selected stop function is Coasting.
Start
Start Zero
Speed Time
Stop
command
Stop state
Ramp Zero
Stop Zero
Speed Time
Actual
Speed
Zero
That the zero speed time starts
when the ramp time is expected
to reach the zero speed, not when
the actual speed reaches zero.
Such situation can happen when
the generator power limit is small
or the overvoltage controller is
active while decelerating.
Code
ID
Description
Notes
P1.9.5.5
1300
Speed controller f0 point “SPC f0 Point”
The speed level in Hz below which the speed controller gain is Speed Controller
gain f0.
P1.9.5.6
13001
Speed controller f1 point “SPC f1 Point”
The speed level in Hz above which the speed controller gain is Speed Controller P gain.
Gain changes linearly between f0 and f1 points.
P1.9.5.7
1299
Speed controller gain f0 “SPC Kp f0”
The relative gain of the speed controller as a percentage of the Speed Controller P
Gain when the speed is below the level defined by Speed Controller f0 point.
P1.9.5.8
1298
Speed controller gain in field weakening area “SPC Kp FWP”
Relative gain of the speed controller in field weakening area as a percentage of Speed
Controller P Gain values. The set value is reached at two times the Field weakening
point.
5.10.1.3 Speed controller tuning for different speed areas
The speed controller can be tuned for different gains
in different speed areas, for slow speed and above the
parameter Field weakening point. Gains for different speed
areas are percentages of the original Speed Controller Gain
value.
P Gain FW
P Gain
100 %
P Gain f0
FWP
f1
f0
2xFWP
