154 Program features
Inertia compensation
Inertia compensation function eliminates speed overshoot or undershoot by
compensating for inertia effects. The function can be enabled when
MOMENT
OF INERT is non-zero. A value can be obtained for inertia compensation with
parameter
INERTIA AUTOTUNE, with the following two methods:
METHOD 1
– calculates the inertia compensation torque (
ACC COMP TORQ)
required during acceleration and deceleration based on the elevator system
mechanics (total mass, sheave diameter, roping and gear ratio).
METHOD 2
– measures the system moment of inertia (parameter
MOMENT
OF INERT) when the user triggers the Inertia autotune procedure with parameter
INERTIA AUTOTUNE. After the function is triggered, the elevator must be
operated once upward and once downward direction to obtain the value. Between the
two operations there should be a Stop state.
Note
: The function only makes observation and does not alter the elevator operation.
For this to happen, the drive needs uniform acceleration from Stopped state in both
directions for at least 200 ms.
Until both upward and downward operations are completed, the drive displays an
alarm,
INERTIA AUTOTUNE. If the operation is not successful, moment of
inertia is written as zero with parameter
Note
: Changes to parameter
are not effective when this mode is active.
The parameter
ACC COMP TORQ shows the calculated or measured value for
the moment of inertia. You can change the value if further fine tuning is required.
Settings
Diagnostics
Parameters
Additional information
CAR WEIGHT
Defines car weight.
ROPE WEIGHT
Defines rope weight.
Defines counter weight.
INERTIA AUTOTUNE
Enables auto tuning for Inertia compensation.
MOMENT OF INERT
Defines the moment of inertia for lift system or lift load calculated
during start-up.
Signals
Additional information
Actual signals
ACC COMP TORQ
Displays the inertia compensation torque calculated by the Inertia
compensation function.
Summary of Contents for ACL30
Page 1: ...ABB high performance elevator drives User s manual ACL30 elevator drive ...
Page 4: ......
Page 20: ...20 Safety instructions ...
Page 34: ...34 Operation principle and hardware description ...
Page 42: ...42 Planning the cabinet installation ...
Page 60: ...60 Planning the electrical installation ...
Page 126: ...126 Using the control panel ...
Page 318: ...318 Maintenance ...
Page 334: ...334 The Safe torque off function ...
Page 338: ...338 Mains chokes ...
Page 342: ...342 EMC filters ...
Page 348: ...Dimension drawings 348 Frame size B D1 D2 W H1 H2 ...
Page 349: ...Dimension drawings 349 ...
Page 350: ...Dimension drawings 350 Frame size C D1 D2 H2 H1 W ...
Page 351: ...Dimension drawings 351 ...
Page 352: ...Dimension drawings 352 Frame size D ...
Page 354: ...354 Dimension drawings EMC filters JFI 0x ...
Page 356: ...356 Dimension drawings Brake resistors JBR xx ...
Page 358: ...358 Dimension drawings ...