Magnetek DSD 412, Техническое руководство

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DRIVE SETUP AND ADJUSTMENT
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Function # 21
External Accel Limit
Units: ***
Range: 2.00 – 10.00
Default: 4.20
This is the maximum acceleration rate for the
elevator when an external analog or serial link
speed reference is used. This function
provides a slew rate limit in the event of noise
or other discontinuity on the externally
supplied reference signal.
This entry must be
set higher than that of the incoming speed
dictation ramp, or the elevator speed will not
track the desired reference velocity.
*** The units will be distance/SEC^2, where
distance uses the same units as function 17.
Function # 22
Error List Reset
Units: Logic
Range: 0 (Off) - 1 (On)
Default: 0
This entry resets the F800 error list, removing
all faults on the list. This may be used to clear
out old data to begin capturing a fresh record.
Function # 32
Full Field Detect
Units: % (of #50)
Range: 30. - 90.
Default: 80.
This entry sets the threshold for sensing a
motor-field-at-full-amps condition. The motor
field must be above (function 50) X (function
32) for internal logic to recognize that the
motor field current is nearly up to the full field
value. Motor field current must be above this
value before the drive will be allowed to start.
If told to start prematurely, the drive will wait
for motor field to rise above this value before
picking the loop contactor.
Function # 38
Armature Voltage Bandwidth
Units: RAD
Range: 1.0 – 4.0
Default: 2.0
This entry sets the bandwidth when operating
in the Armature Voltage Feedback Mode.
This parameter is engaged when function 112
= 0.
Function # 39
High Speed Bandwidth
Units: RAD
Range: 1.0 – 15.0
Default: 6.0
This entry sets the closed loop bandwidth
response of the velocity regulator at speeds
above the setpoint identified in #105. The
tracking delay between the speed dictation
ramp and the actual motor speed during the
linear portion of the acceleration or
deceleration ramp will be 1/(function 40)
seconds. A setting lower than that of function
40 is useful to suppress rope vibration effects
at high speed. This simplified adjustment
takes the place of the ‘Gain Reduce’ function
supplied in earlier versions software.
Function # 40
Low Speed Bandwidth
Units: RAD
Range: 1.0 – 15.0
Default: 6.0
This entry sets the closed loop bandwidth
response of the velocity regulator at speeds
below the setpoint identified in function 105.
The tracking delay between the speed
dictation ramp and the actual motor speed
during the linear portion of the acceleration or
deceleration ramp will be 1/(function 40)
seconds.
Increasing the value of Function 40
will make the drive more responsive, but may
also cause unwanted amplification of
mechanical vibration or rope resonance.
Function # 41
Per-Unit Inertia
Units: SEC
Range: 0.10 – 9.99
Default: 2.00
This value is the ratio of the effective inertia of
the moving elevator system mass to the rated
torque strength of the motor. The units,
seconds, would be the time it would take to
accelerate the elevator inertia to rated speed
using rated motor amps. This value affects
the feed-forward gain of the velocity regulator
and affects how well it will follow a changing
reference speed
Function # 42
Stiffness
Units: —
Range: 0.2 – 9.9
Default: 1.0
This setting affects the proportional gain and
Phase Margin of the regulator. Increasing this
setting will make the regulator more
responsive to correct mechanical load speed
variances, but can cause it to amplify