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APPENDIX
– Open-Loop Performance
184
Leveling Times Different Up vs. Down
If the elevator exhibits significantly different
leveling speeds/times up vs. down then until
resolved, try the following (in order)
1. Verify the Slip Compensation
parameters
2. Complete Motor RPM Adjustment
Procedure
Verify Slip Compensation parameters
Verify SLIP COMP TIME (A1) parameter
is at default of 1.50.
Verify SLIP COMP GAIN (A1) parameter
is at default of 1.00.
Complete Motor RPM Adjustment Procedure
At Empty Car, run the drive at 10% of
contract speed and complete the Motor
RPM Adjustment Procedure.
At Full-load, run the drive at 10% of
contract speed and complete the Motor
RPM Adjustment Procedure.
Leveling Oscillation
If the elevator exhibits a leveling speed
oscillation then until resolved, try the following
(in order):
1. Increase the Hunt Prevention Time
Parameter
2. Decrease Distortion Loop Gain
parameters
Note: if no performance change is
observed after any one step, set any
changed value(s) back to the original
value(s) before proceeding onto the next
step.
Increase the Hunt Prevention Time Parameter
The Hunt Prevention Time Constant is
defaulted as 0.2 seconds (HUNT
PREV TIME (A4)= 0.2).
Increase the HUNT PREV TIME (A4)
parameter in 0.1 intervals and observe
performance.
Note: if no performance change is
observed, set the values back to
default
Decrease the Distortion Loop Gain Parameters
The Distortion Loop Gain parameters
are defaulted at Id DIST LOOP GN
(A4) = 0.50 and Iq DIST LOOP GN
(A4) = 0.30
Note: to view these parameter enabled
hidden items (HIDDEN ITEMS (U2) =
enabled)
Decrease Id DIST LOOP GN (A4) and
Iq DIST LOOP GN (A4) parameters in
0.1 intervals and observe
performance.
Note: if no performance change is
observed, set the values back to
default
Bump at Stop
If a bump is felt at the stop, then until resolved,
try the following (in order):
1. Verify Mechanical Brake Timing
2. Decrease Decel Jerk Out Rate
3. Decrease DC Injection Stop
Frequency
Note: if no performance change is
observed after any one step, set any
changed value(s) back to the original
value(s) before proceeding onto the next
step.
Verify Mechanical Brake Timing
The mechanical brake should be dropped
during the DC injection stop time (DC
STOP TIME (A1) parameter), see
“Mechanical Brake Timing at Stop”.
Decrease Decel Jerk Out Rate
Decrease jerk rate via DECEL JERK
OUT x (A2) parameter and observe
performance.
Decrease DC Injection Stop Frequency
Decrease the DC STOP FREQ (A1)
parameter in increments of 0.1 Hz and
observe performance.
Undershooting Floor
If the car is undershooting the floor then until
resolved, try the following (in order):
1. Verify Mechanical Brake Timing
2. Increase Leveling Speed
3. Decrease Decel Jerk Out and Decel
Rates
Note: if no performance change is
observed after any one step, set any
changed value(s) back to the original
value(s) before proceeding onto the next
step.
Verify Mechanical Brake Timing
The mechanical brake should be dropped
during the DC injection stop time (DC
STOP TIME (A1) parameter), see
“Mechanical Brake Timing at Stop”.
Increase Leveling Speed
Increase leveling speed and observe
performance
Increase Decel Jerk Out and Decel Rates
Decrease jerk rate via DECEL JERK
OUT x (A2) parameter and observe
performance
Содержание HPV 900 Series 2
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