Rockwell Automation 23P PowerFlex Digital DC Drive - Manual (Page 149)

Rockwell Automation Publication 20P-UM001K-EN-P - July 2014 149
Programming and Parameters Chapter 3
SPEE
D C
O
MMAND
Speed Regul
at
or
126 [Spd Zero P Gain]
The proportional gain of the speed regulator that is only active when the
value of the speed reference and actual speed = 0. This parameter is only
active when Par 125 [Spd Zero P En] = 1 “Enabled”. Used in the Zero Speed
function.
Note: See Speed Zero Function on page
322 for more information.
Default:
Min/Max:
Units:
3.00
0.00 / 100.00
%
Real
238 [SpdOut FiltGain]
First order lead/lag filter gain on the speed regulator output signal.
Note: This parameter was added for firmware version 3.001. Default:
Min/Max:
1.000
0.000 / 2.000
Real 239
239 [SpdOut FiltBW]
First order lead/lag filter bandwidth on the speed regulator output signal.
Note: This parameter was added for firmware version 3.001. Default:
Min/Max:
Units:
0
0 / 2000
ms
16-bit
Int 238
242 [Speed Reg En]
Enables/Disables the speed regulator output to the torque/current regulator.
• “Enabled” = The speed regulator output is connected to the input of the
torque/current regulator.
• “Disabled” = The speed regulator output is not connected to the input of
the torque/current regulator. Par 39 [Torque Ref] is connected to the input
of the current regulator.
Note: This parameter is only available for use with firmware version 2.005
and lower.
Default:
Options:
1 =
0 =
1 =
“Enabled”
“Disabled”
“Enabled”
16-bit
Int 39,
41,
236
348 [Lock Speed Integ]
Enables or disables the integral (I) function of the speed regulator.
• “Not active” = The integral component of the speed regulator is enabled.
• “Active” = The integral component of the speed regulator is disabled. Default:
Options:
1 =
0 =
1 =
“Not active”
“Active”
“Not active”
16-bit
Int
388 [Flying Start En]
Enables/Disables the ability of the drive to connect to a spinning motor at
actual rpm when a start command is issued.
• “On” = When the drive is turned on, the speed of the motor is measured
and the ramp output is set accordingly. The drive then runs at the set
reference value.
• “Off” = When the drive is turned on, the ramp starts from zero.
Main uses:
• To connect to a motor that is already spinning due to its load (for example,
in the case of a pump, the flowing medium).
• Re–connection to a spinning motor after a fault or alarm.
Note: If the Flying Start function is disabled (off), be sure that the motor is
not spinning when the drive is turned on, or harsh motor deceleration in
current limit may occur.
Default:
Options:
0 =
0 =
1 =
“Off”
“Off”
“On”
16-bit
Int
433 [Total Inertia]
Time, in seconds, for a motor coupled to a load to accelerate from zero to base
speed with rated motor torque applied. This value can be calculated by
Autotune or entered directly.
Note: This parameter was added for firmware version 6.001. Default:
Min/Max:
Units:
1.0
0.001 / 300.0
s
Real
434 [Spd Reg BW]
Sets the bandwidth of the speed regulator in rad/sec. Bandwidth is also
referred to as the crossover frequency. Small signal time response is
approximately 1/BW and is the time to reach 63% of setpoint. A change to
this parameter will cause an automatic update of Pars 87 [Spd Reg Kp] and 88
[Spd Reg Ki]. To disable the automatic gain calculation, set this parameter to
a value of zero. Note: This parameter was added for firmware version 6.001. Default:
Min/Max:
Units:
10.0
0.0 / 100.0
rad / sec
Real 87,
88
Fil
e
Gr
oup
No
. Parameter Name & Description
See page 114 for symbol descriptions
Values Da
ta
T
yp
e
Rela
ted
A
ATTENTION: Failure to correctly set speed and voltage parameters or provide overspeed protection when operating as a
torque/current regulator could result in high motor speeds, equipment damage, and/or personal injury.
A
A
A
A