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Closed-loop Start-up
21
Tuning Motor No-Load Current
With a balanced car, run the car at 70% contract
speed from top floor to the bottom floor then
back to the top floor.
During these runs verify under DISPLAY MENU
- POWER DATA D2 that the MOTOR TORQUE
is between
±
15%. If the value is larger then
±
15% the car is not balanced correctly.
NOTE: If you are having problems getting
the motor torque under 15% the cause may
be:
•
No compensation chains
If the elevator system has no
compensation chains, achieving
balanced condition may be difficult. In
that case, the MOTOR TORQUE should
be between
±
15% for as much of the
run as possible.
•
High elevator system friction
If the elevator system has high friction,
achieving motor torque of under 15%
may be difficult. In that case, have less
than the balance car weight in the car,
thus letting the counterweight help to
overcome the frictional losses. In this
case, the you should look only at the
estimated values in the up direction and
run the car in the up direction a number
of times before changing any parameter
settings.
•
Also, verify that the FLUX REFERENCE is
100%. If the value is not equal to 100%
reduce the speed to less then 70% contract
speed and check again.
•
While still performing these top / bottom runs
observe under DISPLAY MENU - POWER
DATA D2 the EST NO LOAD CURR value.
RUN/FAULT
SUB MENU
DATA ENT
HPV OPERATOR
MOTOR TORQUE
D2 8 %
RUN/FAULT
SUB MENU
DATA ENT
HPV OPERATOR
FLUX REFERENCE
D2 100 %
RUN/FAULT
SUB MENU
DATA ENT
HPV OPERATOR
EST NO LOAD CURR
D2 32.3 %
VOLTS
Hz
H.P.
R.P.M.
AMPS
Motor Nameplate
RATED
MTR
VOLTS
RATED
MTR
POWER
RATED
EXCIT
FREQ
RATED
MOTOR
CURR
RATED
MTR
SPEED
MOTOR POLES
Rated
#
of
Speed
motor
(RPM)
poles
1800-1500 4
1200-1000 6
900-750 8
720-600 10
Содержание HPV 600
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