NICE3000
new
User Manual
6 System Commissioning and Functions
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Function Code Parameter Name Setting Range Default
F8-11 Brake apply delay 0.200–1.500s 0.200s
The system retains the zero-speed torque current output within the time set in F3-19 from the
moment when the system sends the brake release command; this is to prevent rollback. 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.
4) 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 Parameter Name Setting Range Default
F2-16 Torque acceleration time 1–500 ms 1 ms
F2-17 Torque deceleration time 1–500 ms 350 ms
5) Adjustment at large mechanical static friction
Function Code Parameter Name Setting Range Default
F2-18 Startup acceleration time 0.000–1.500 s 0.000s
F3-00 Startup speed 0.000–0.030 m/s 0.000m/s
F3-01 Startup holding time 0.000–0.500 s 0.000s
Figure 6-12 Startup timing sequence for eliminating static friction
V (speed)
V (speed)
F3-01
F3-00
F2-18
t (time)
t (time)
Bad riding comfort due to static friction may often exist in villa elevators. When there is large friction
between the guide shoes and the guide rails, large static friction generates at the moment of startup,
leading to bad riding comfort. Make the system starts up at the specied speed by setting these
parameters to eliminate friction and improve riding comfort.
■ Riding comfort adjustment to the running curve
Function Code Parameter Name Setting Range Default
F3-02 Acceleration rate 0.200–1.500 s
2
0.600 /s
2
F3-03 Acceleration start jerk time 0.300–4.000 s 2.500 s
F3-04 Acceleration end jerk time 0.300–4.000 s 2.500 s
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