5 System Commissioning
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The adjustment is based on the combination of “startup comfort adjustment without
a load cell” and “startup comfort adjustment with a load cell”.
c) Handling of rollback at elevator startup and stop
The parameter setting related to rollback at elevator startup and stop is described in
the following table.
Function
Code
Name Setting Range Default
F3-19 Brake release delay 0.000 to 2.000s 0.600s
F8-11 Brake release delay 0.200 to 1.500s 0.600s
sends the brake release command to the moment when the brake is completely
released, during which the system retains the zero-speed torque current output. If
there is obvious rollback at elevator startup, increase F3-19 properly.
The system retains the zero-speed torque current output within the time set in F8-11
from the moment when the system sends the brake apply command; this is to prevent
rollback. If there is obvious rollback at elevator startup, increase F8-11 properly.
d) Handling of current noise at motor startup and stop
During elevator startup or stop, certain motors may generate noise when the current
is applied before the brake is released or the current is removed after the brake is
applied. To reduce motor noise, increase F2-16 or F2-17 properly.
Function
Code
Name Setting Range Default
F2-16 Torque acceleration time 1 to 500 1
F2-17 Torque deceleration time 1 to 3000 350
e
)
Adjustment at large mechanical static friction
Function
Code
Name Setting Range Default
F3-00 Startup speed 0.000m/s
F3-01 Startup holding time 0.000 to 5.000s 0.000s
Startup timing sequence for eliminating static friction
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