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APPENDIX
– Open-Loop Adjustments
183
(see Stalling Attempting to Lift Load);
Spotting or Stalling Going into Leveling
; or Overshooting Floor only with
Regen Load).
Increase DC Injection Start Level
Increase the DC START LEVEL (A1)
parameter by increments of 5% and
observe performance.
Measuring the Stator Resistance
Complete the procedure.
Decrease the Torque Boost
Decrease TORQ BOOST GAIN (A1)
parameter in increments of 0.1 until
the fault goes away or zero is reached
(and the function is turned off)
Secondly, decrease STATOR RESIST
(A5) parameter in increments of 0.1%
Note: set TORQ BOOST GAIN (A1)=0,
before adjusting STATOR RESIST
(A5))
Spotting or Stalling Going into Leveling
If the motor stalls or spots as it transitions from
deceleration to leveling speed then until
resolved, try the following (in order):
1. Decrease Decel Jerk Out and Decel
Rates
2. Increase the Torque Boost Gain
parameter
3. Measure the Stator Resistance
4. Adjust the Motor Mid Volts parameter
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.
Decrease Decel Jerk Out and Decel Rates
Decrease jerk rate via DECEL JERK
OUT x (A2) parameter and observe
performance
Secondly, decrease decel rate via
DECEL RATE x (A2) parameter and
observe performance
Note: the combination of these two
parameters is usually primary cause of
spotting or stalling going into leveling
Increase the Torque Boost Gain Parameter
The Torque Boost function is defaulted
off (TORQ BOOST GAIN (A1)= 0).
Increase the TORQ BOOST GAIN
(A1) in 0.1 intervals and observe
performance.
Measure the Stator Resistance
Measure the stator resistance by
completing the procedure and observe
performance.
Adjust the Motor Mid Volts parameter
Complete the Mid-volts Adjustment
Procedure and observe performance.
Note: Avoid increasing the MOTOR MID
VOLTS (A5) parameter too high, since this
effects stopping performance (i.e. coming
into the floor too fast) or can create
Overcurrent Faults
Coming into Floor Too Fast
If the car is coming into the floor too fast then
until resolved, try the following (in order):
1. Decrease Decel Jerk Out and Decel
Rates
2. Decrease Motor Mid Voltage
parameter
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.
Decrease Decel Jerk Out and Decel Rates
Decrease jerk rate via DECEL JERK
OUT x (A2) parameter and observe
performance
Secondly, decrease decel rate via
DECEL RATE x (A2) parameter and
observe performance
Decrease the Motor Mid Voltage Parameter
MOTOR MID VOLTS (A5) and
MOTOR MIN VOLTS (A5) parameters
should usually be set at default, see .
These parameters would only be
adjusted slightly with certain issues
(see Stalling Attempting to Lift Load ;
Spotting or Stalling Going into
Leveling; or Overshooting Floor only
with Regen Load).
Decrease MOTOR MID VOLTS (A5)
parameter (decrease increments of 0.5
and observe performance)
Note: When decreasing the Motor Mid
Volts parameter, watch that the drive does
not start stalling (especially with full-load)
Содержание HPV 900 Series 2
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